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1211.5817
Seyed-Mehdi-Reza Beheshti
Seyed-Mehdi-Reza Beheshti, Sherif Sakr, Boualem Benatallah, Hamid Reza Motahari-Nezhad
Extending SPARQL to Support Entity Grouping and Path Queries
23 pages. arXiv admin note: text overlap with arXiv:1211.5009
null
null
UNSW-CSE-TR-1019
cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ability to efficiently find relevant subgraphs and paths in a large graph to a given query is important in many applications including scientific data analysis, social networks, and business intelligence. Currently, there is little support and no efficient approaches for expressing and executing such queries. Thi...
[ { "version": "v1", "created": "Wed, 21 Nov 2012 10:55:36 GMT" } ]
2012-11-27T00:00:00
[ [ "Beheshti", "Seyed-Mehdi-Reza", "" ], [ "Sakr", "Sherif", "" ], [ "Benatallah", "Boualem", "" ], [ "Motahari-Nezhad", "Hamid Reza", "" ] ]
TITLE: Extending SPARQL to Support Entity Grouping and Path Queries ABSTRACT: The ability to efficiently find relevant subgraphs and paths in a large graph to a given query is important in many applications including scientific data analysis, social networks, and business intelligence. Currently, there is little su...
1211.5820
Erjia Yan
Erjia Yan, Ying Ding, Blaise Cronin, Loet Leydesdorff
A bird's-eye view of scientific trading: Dependency relations among fields of science
null
null
null
null
cs.DL
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use a trading metaphor to study knowledge transfer in the sciences as well as the social sciences. The metaphor comprises four dimensions: (a) Discipline Self-dependence, (b) Knowledge Exports/Imports, (c) Scientific Trading Dynamics, and (d) Scientific Trading Impact. This framework is applied to a dataset of 221...
[ { "version": "v1", "created": "Sun, 25 Nov 2012 23:22:05 GMT" } ]
2012-11-27T00:00:00
[ [ "Yan", "Erjia", "" ], [ "Ding", "Ying", "" ], [ "Cronin", "Blaise", "" ], [ "Leydesdorff", "Loet", "" ] ]
TITLE: A bird's-eye view of scientific trading: Dependency relations among fields of science ABSTRACT: We use a trading metaphor to study knowledge transfer in the sciences as well as the social sciences. The metaphor comprises four dimensions: (a) Discipline Self-dependence, (b) Knowledge Exports/Imports, (c) Sc...
1211.0191
Branko Ristic
Branko Ristic, Jamie Sherrah and \'Angel F. Garc\'ia-Fern\'andez
Performance Evaluation of Random Set Based Pedestrian Tracking Algorithms
6 pages, 3 figures
null
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The paper evaluates the error performance of three random finite set based multi-object trackers in the context of pedestrian video tracking. The evaluation is carried out using a publicly available video dataset of 4500 frames (town centre street) for which the ground truth is available. The input to all pedestrian ...
[ { "version": "v1", "created": "Thu, 25 Oct 2012 23:21:46 GMT" } ]
2012-11-26T00:00:00
[ [ "Ristic", "Branko", "" ], [ "Sherrah", "Jamie", "" ], [ "García-Fernández", "Ángel F.", "" ] ]
TITLE: Performance Evaluation of Random Set Based Pedestrian Tracking Algorithms ABSTRACT: The paper evaluates the error performance of three random finite set based multi-object trackers in the context of pedestrian video tracking. The evaluation is carried out using a publicly available video dataset of 4500 fr...
1211.5245
Benjamin Laken
Benjamin A. Laken, Enric Palle, Jasa Calogovic and Eimear M. Dunne
A cosmic ray-climate link and cloud observations
13 pages, 6 figures
J. Space Weather Space Clim., 2, A18, 13pp, 2012
10.1051/swsc/2012018
null
physics.ao-ph astro-ph.EP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Despite over 35 years of constant satellite-based measurements of cloud, reliable evidence of a long-hypothesized link between changes in solar activity and Earth's cloud cover remains elusive. This work examines evidence of a cosmic ray cloud link from a range of sources, including satellite-based cloud measurements...
[ { "version": "v1", "created": "Thu, 22 Nov 2012 10:24:27 GMT" } ]
2012-11-26T00:00:00
[ [ "Laken", "Benjamin A.", "" ], [ "Palle", "Enric", "" ], [ "Calogovic", "Jasa", "" ], [ "Dunne", "Eimear M.", "" ] ]
TITLE: A cosmic ray-climate link and cloud observations ABSTRACT: Despite over 35 years of constant satellite-based measurements of cloud, reliable evidence of a long-hypothesized link between changes in solar activity and Earth's cloud cover remains elusive. This work examines evidence of a cosmic ray cloud link f...
1211.5520
Ashish Tendulkar Dr
Vivekanand Samant, Arvind Hulgeri, Alfonso Valencia, Ashish V. Tendulkar
Accurate Demarcation of Protein Domain Linkers based on Structural Analysis of Linker Probable Region
18 pages, 2 figures
International Journal of Computational Biology, 0001:01-19, 2012
null
null
cs.CE q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In multi-domain proteins, the domains are connected by a flexible unstructured region called as protein domain linker. The accurate demarcation of these linkers holds a key to understanding of their biochemical and evolutionary attributes. This knowledge helps in designing a suitable linker for engineering stable mul...
[ { "version": "v1", "created": "Fri, 23 Nov 2012 14:53:54 GMT" } ]
2012-11-26T00:00:00
[ [ "Samant", "Vivekanand", "" ], [ "Hulgeri", "Arvind", "" ], [ "Valencia", "Alfonso", "" ], [ "Tendulkar", "Ashish V.", "" ] ]
TITLE: Accurate Demarcation of Protein Domain Linkers based on Structural Analysis of Linker Probable Region ABSTRACT: In multi-domain proteins, the domains are connected by a flexible unstructured region called as protein domain linker. The accurate demarcation of these linkers holds a key to understanding of th...
1211.4888
Tuhin Sahai
Tuhin Sahai, Stefan Klus and Michael Dellnitz
A Traveling Salesman Learns Bayesian Networks
null
null
null
null
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Structure learning of Bayesian networks is an important problem that arises in numerous machine learning applications. In this work, we present a novel approach for learning the structure of Bayesian networks using the solution of an appropriately constructed traveling salesman problem. In our approach, one computes ...
[ { "version": "v1", "created": "Tue, 20 Nov 2012 21:50:22 GMT" } ]
2012-11-22T00:00:00
[ [ "Sahai", "Tuhin", "" ], [ "Klus", "Stefan", "" ], [ "Dellnitz", "Michael", "" ] ]
TITLE: A Traveling Salesman Learns Bayesian Networks ABSTRACT: Structure learning of Bayesian networks is an important problem that arises in numerous machine learning applications. In this work, we present a novel approach for learning the structure of Bayesian networks using the solution of an appropriately const...
1211.4658
Monowar Bhuyan H
Monowar H. Bhuyan, Sarat Saharia, and Dhruba Kr Bhattacharyya
An Effective Method for Fingerprint Classification
9 pages, 7 figures, 6 tables referred journal publication. arXiv admin note: substantial text overlap with arXiv:1211.4503
International A. Journal of e-Technology, Vol. 1, No. 3, pp. 89-97, January, 2010
null
null
cs.CV cs.CR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents an effective method for fingerprint classification using data mining approach. Initially, it generates a numeric code sequence for each fingerprint image based on the ridge flow patterns. Then for each class, a seed is selected by using a frequent itemsets generation technique. These seeds are sub...
[ { "version": "v1", "created": "Tue, 20 Nov 2012 03:25:57 GMT" } ]
2012-11-21T00:00:00
[ [ "Bhuyan", "Monowar H.", "" ], [ "Saharia", "Sarat", "" ], [ "Bhattacharyya", "Dhruba Kr", "" ] ]
TITLE: An Effective Method for Fingerprint Classification ABSTRACT: This paper presents an effective method for fingerprint classification using data mining approach. Initially, it generates a numeric code sequence for each fingerprint image based on the ridge flow patterns. Then for each class, a seed is selected ...
1211.4142
Shaina Race
Ralph Abbey, Jeremy Diepenbrock, Amy Langville, Carl Meyer, Shaina Race, Dexin Zhou
Data Clustering via Principal Direction Gap Partitioning
null
null
null
null
stat.ML cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the geometrical interpretation of the PCA based clustering algorithm Principal Direction Divisive Partitioning (PDDP). We give several examples where this algorithm breaks down, and suggest a new method, gap partitioning, which takes into account natural gaps in the data between clusters. Geometric feature...
[ { "version": "v1", "created": "Sat, 17 Nov 2012 18:28:30 GMT" } ]
2012-11-20T00:00:00
[ [ "Abbey", "Ralph", "" ], [ "Diepenbrock", "Jeremy", "" ], [ "Langville", "Amy", "" ], [ "Meyer", "Carl", "" ], [ "Race", "Shaina", "" ], [ "Zhou", "Dexin", "" ] ]
TITLE: Data Clustering via Principal Direction Gap Partitioning ABSTRACT: We explore the geometrical interpretation of the PCA based clustering algorithm Principal Direction Divisive Partitioning (PDDP). We give several examples where this algorithm breaks down, and suggest a new method, gap partitioning, which tak...
1211.4503
Monowar Bhuyan H
Monowar H. Bhuyan and D. K. Bhattacharyya
An Effective Fingerprint Classification and Search Method
10 pages, 8 figures, 6 tables, referred journal publication
International Journal of Computer Science and Network Security, Vol. 9, No.11, pp. 39-48, 2009
null
null
cs.CV cs.CR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents an effective fingerprint classification method designed based on a hierarchical agglomerative clustering technique. The performance of the technique was evaluated in terms of several real-life datasets and a significant improvement in reducing the misclassification error has been noticed. This pap...
[ { "version": "v1", "created": "Mon, 19 Nov 2012 17:13:26 GMT" } ]
2012-11-20T00:00:00
[ [ "Bhuyan", "Monowar H.", "" ], [ "Bhattacharyya", "D. K.", "" ] ]
TITLE: An Effective Fingerprint Classification and Search Method ABSTRACT: This paper presents an effective fingerprint classification method designed based on a hierarchical agglomerative clustering technique. The performance of the technique was evaluated in terms of several real-life datasets and a significant i...
1211.4521
Tyler Clemons Mr
Tyler Clemons, S. M. Faisal, Shirish Tatikonda, Charu Aggarawl, and Srinivasan Parthasarathy
Hash in a Flash: Hash Tables for Solid State Devices
16 pages 10 figures
null
null
null
cs.DB cs.DS cs.IR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years, information retrieval algorithms have taken center stage for extracting important data in ever larger datasets. Advances in hardware technology have lead to the increasingly wide spread use of flash storage devices. Such devices have clear benefits over traditional hard drives in terms of latency of ...
[ { "version": "v1", "created": "Mon, 19 Nov 2012 17:55:01 GMT" } ]
2012-11-20T00:00:00
[ [ "Clemons", "Tyler", "" ], [ "Faisal", "S. M.", "" ], [ "Tatikonda", "Shirish", "" ], [ "Aggarawl", "Charu", "" ], [ "Parthasarathy", "Srinivasan", "" ] ]
TITLE: Hash in a Flash: Hash Tables for Solid State Devices ABSTRACT: In recent years, information retrieval algorithms have taken center stage for extracting important data in ever larger datasets. Advances in hardware technology have lead to the increasingly wide spread use of flash storage devices. Such devices ...
1211.4552
Gabriel Synnaeve
Gabriel Synnaeve (LIG, LPPA), Pierre Bessiere (LPPA)
A Dataset for StarCraft AI \& an Example of Armies Clustering
Artificial Intelligence in Adversarial Real-Time Games 2012, Palo Alto : United States (2012)
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper advocates the exploration of the full state of recorded real-time strategy (RTS) games, by human or robotic players, to discover how to reason about tactics and strategy. We present a dataset of StarCraft games encompassing the most of the games' state (not only player's orders). We explain one of the poss...
[ { "version": "v1", "created": "Mon, 19 Nov 2012 20:18:43 GMT" } ]
2012-11-20T00:00:00
[ [ "Synnaeve", "Gabriel", "", "LIG, LPPA" ], [ "Bessiere", "Pierre", "", "LPPA" ] ]
TITLE: A Dataset for StarCraft AI \& an Example of Armies Clustering ABSTRACT: This paper advocates the exploration of the full state of recorded real-time strategy (RTS) games, by human or robotic players, to discover how to reason about tactics and strategy. We present a dataset of StarCraft games encompassing th...
1011.4104
Andri Mirzal
Andri Mirzal
Clustering and Latent Semantic Indexing Aspects of the Singular Value Decomposition
38 pages, submitted to Pattern Recognition
null
null
null
cs.LG cs.NA math.SP
http://creativecommons.org/licenses/by-nc-sa/3.0/
This paper discusses clustering and latent semantic indexing (LSI) aspects of the singular value decomposition (SVD). The purpose of this paper is twofold. The first is to give an explanation on how and why the singular vectors can be used in clustering. And the second is to show that the two seemingly unrelated SVD ...
[ { "version": "v1", "created": "Wed, 17 Nov 2010 23:39:12 GMT" }, { "version": "v2", "created": "Wed, 9 Mar 2011 18:56:56 GMT" }, { "version": "v3", "created": "Wed, 17 Oct 2012 08:41:06 GMT" }, { "version": "v4", "created": "Fri, 16 Nov 2012 04:26:29 GMT" } ]
2012-11-19T00:00:00
[ [ "Mirzal", "Andri", "" ] ]
TITLE: Clustering and Latent Semantic Indexing Aspects of the Singular Value Decomposition ABSTRACT: This paper discusses clustering and latent semantic indexing (LSI) aspects of the singular value decomposition (SVD). The purpose of this paper is twofold. The first is to give an explanation on how and why the si...
1211.3444
Deanna Needell
B. Cung, T. Jin, J. Ramirez, A. Thompson, C. Boutsidis and D. Needell
Spectral Clustering: An empirical study of Approximation Algorithms and its Application to the Attrition Problem
null
null
null
null
cs.LG math.NA stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Clustering is the problem of separating a set of objects into groups (called clusters) so that objects within the same cluster are more similar to each other than to those in different clusters. Spectral clustering is a now well-known method for clustering which utilizes the spectrum of the data similarity matrix to ...
[ { "version": "v1", "created": "Wed, 14 Nov 2012 22:05:09 GMT" } ]
2012-11-16T00:00:00
[ [ "Cung", "B.", "" ], [ "Jin", "T.", "" ], [ "Ramirez", "J.", "" ], [ "Thompson", "A.", "" ], [ "Boutsidis", "C.", "" ], [ "Needell", "D.", "" ] ]
TITLE: Spectral Clustering: An empirical study of Approximation Algorithms and its Application to the Attrition Problem ABSTRACT: Clustering is the problem of separating a set of objects into groups (called clusters) so that objects within the same cluster are more similar to each other than to those in different...
1203.5387
Vibhor Rastogi
Vibhor Rastogi, Ashwin Machanavajjhala, Laukik Chitnis, Anish Das Sarma
Finding Connected Components on Map-reduce in Logarithmic Rounds
null
null
null
null
cs.DS cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Given a large graph G = (V,E) with millions of nodes and edges, how do we compute its connected components efficiently? Recent work addresses this problem in map-reduce, where a fundamental trade-off exists between the number of map-reduce rounds and the communication of each round. Denoting d the diameter of the gra...
[ { "version": "v1", "created": "Sat, 24 Mar 2012 05:16:27 GMT" }, { "version": "v2", "created": "Tue, 13 Nov 2012 01:50:51 GMT" } ]
2012-11-14T00:00:00
[ [ "Rastogi", "Vibhor", "" ], [ "Machanavajjhala", "Ashwin", "" ], [ "Chitnis", "Laukik", "" ], [ "Sarma", "Anish Das", "" ] ]
TITLE: Finding Connected Components on Map-reduce in Logarithmic Rounds ABSTRACT: Given a large graph G = (V,E) with millions of nodes and edges, how do we compute its connected components efficiently? Recent work addresses this problem in map-reduce, where a fundamental trade-off exists between the number of map-r...
1211.2399
Rustam Tagiew
Rustam Tagiew
Mining Determinism in Human Strategic Behavior
8 pages, no figures, EEML 2012
Experimental Economics and Machine Learning 2012, CEUR-WS Vol-870, urn:nbn:de:0074-870-0
null
null
cs.GT cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This work lies in the fusion of experimental economics and data mining. It continues author's previous work on mining behaviour rules of human subjects from experimental data, where game-theoretic predictions partially fail to work. Game-theoretic predictions aka equilibria only tend to success with experienced subje...
[ { "version": "v1", "created": "Sun, 11 Nov 2012 11:27:01 GMT" } ]
2012-11-13T00:00:00
[ [ "Tagiew", "Rustam", "" ] ]
TITLE: Mining Determinism in Human Strategic Behavior ABSTRACT: This work lies in the fusion of experimental economics and data mining. It continues author's previous work on mining behaviour rules of human subjects from experimental data, where game-theoretic predictions partially fail to work. Game-theoretic pred...
1211.2556
Fatai Anifowose
Fatai Adesina Anifowose
A Comparative Study of Gaussian Mixture Model and Radial Basis Function for Voice Recognition
9 pages, 10 figures; International Journal of Advanced Computer Science and Applications (IJACSA), Vol. 1, No.3, September 2010
null
null
null
cs.LG cs.CV stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A comparative study of the application of Gaussian Mixture Model (GMM) and Radial Basis Function (RBF) in biometric recognition of voice has been carried out and presented. The application of machine learning techniques to biometric authentication and recognition problems has gained a widespread acceptance. In this r...
[ { "version": "v1", "created": "Mon, 12 Nov 2012 10:42:58 GMT" } ]
2012-11-13T00:00:00
[ [ "Anifowose", "Fatai Adesina", "" ] ]
TITLE: A Comparative Study of Gaussian Mixture Model and Radial Basis Function for Voice Recognition ABSTRACT: A comparative study of the application of Gaussian Mixture Model (GMM) and Radial Basis Function (RBF) in biometric recognition of voice has been carried out and presented. The application of machine lea...
1211.1752
Abhishek Anand Abhishek
Abhishek Anand and Sherwin Li
3D Scene Grammar for Parsing RGB-D Pointclouds
null
null
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We pose 3D scene-understanding as a problem of parsing in a grammar. A grammar helps us capture the compositional structure of real-word objects, e.g., a chair is composed of a seat, a back-rest and some legs. Having multiple rules for an object helps us capture structural variations in objects, e.g., a chair can opt...
[ { "version": "v1", "created": "Thu, 8 Nov 2012 03:11:53 GMT" } ]
2012-11-09T00:00:00
[ [ "Anand", "Abhishek", "" ], [ "Li", "Sherwin", "" ] ]
TITLE: 3D Scene Grammar for Parsing RGB-D Pointclouds ABSTRACT: We pose 3D scene-understanding as a problem of parsing in a grammar. A grammar helps us capture the compositional structure of real-word objects, e.g., a chair is composed of a seat, a back-rest and some legs. Having multiple rules for an object helps ...
1208.2448
Yong Zeng
Yong Zeng, Zhifeng Bao, Guoliang Li, Tok Wang Ling, Jiaheng Lu
Breaking Out The XML MisMatch Trap
The article is already withdrawn
null
null
null
cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In keyword search, when user cannot get what she wants, query refinement is needed and reason can be various. We first give a thorough categorization of the reason, then focus on solving one category of query refinement problem in the context of XML keyword search, where what user searches for does not exist in the d...
[ { "version": "v1", "created": "Sun, 12 Aug 2012 18:51:23 GMT" }, { "version": "v2", "created": "Tue, 6 Nov 2012 03:09:15 GMT" }, { "version": "v3", "created": "Wed, 7 Nov 2012 07:34:13 GMT" } ]
2012-11-08T00:00:00
[ [ "Zeng", "Yong", "" ], [ "Bao", "Zhifeng", "" ], [ "Li", "Guoliang", "" ], [ "Ling", "Tok Wang", "" ], [ "Lu", "Jiaheng", "" ] ]
TITLE: Breaking Out The XML MisMatch Trap ABSTRACT: In keyword search, when user cannot get what she wants, query refinement is needed and reason can be various. We first give a thorough categorization of the reason, then focus on solving one category of query refinement problem in the context of XML keyword search...
1204.2169
Hang-Hyun Jo
Hang-Hyun Jo, M\'arton Karsai, Juuso Karikoski, Kimmo Kaski
Spatiotemporal correlations of handset-based service usages
11 pages, 15 figures
EPJ Data Science 1, 10 (2012)
10.1140/epjds10
null
physics.soc-ph physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study spatiotemporal correlations and temporal diversities of handset-based service usages by analyzing a dataset that includes detailed information about locations and service usages of 124 users over 16 months. By constructing the spatiotemporal trajectories of the users we detect several meaningful places or co...
[ { "version": "v1", "created": "Tue, 10 Apr 2012 14:42:56 GMT" }, { "version": "v2", "created": "Tue, 10 Jul 2012 15:06:23 GMT" }, { "version": "v3", "created": "Wed, 26 Sep 2012 12:16:40 GMT" } ]
2012-11-07T00:00:00
[ [ "Jo", "Hang-Hyun", "" ], [ "Karsai", "Márton", "" ], [ "Karikoski", "Juuso", "" ], [ "Kaski", "Kimmo", "" ] ]
TITLE: Spatiotemporal correlations of handset-based service usages ABSTRACT: We study spatiotemporal correlations and temporal diversities of handset-based service usages by analyzing a dataset that includes detailed information about locations and service usages of 124 users over 16 months. By constructing the spa...
1209.0911
Junming Huang Junming Huang
Junming Huang, Xue-Qi Cheng, Hua-Wei Shen, Xiaoming Sun, Tao Zhou, Xiaolong Jin
Conquering the rating bound problem in neighborhood-based collaborative filtering: a function recovery approach
10 pages, 4 figures
null
null
null
cs.IR cs.AI cs.HC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As an important tool for information filtering in the era of socialized web, recommender systems have witnessed rapid development in the last decade. As benefited from the better interpretability, neighborhood-based collaborative filtering techniques, such as item-based collaborative filtering adopted by Amazon, have...
[ { "version": "v1", "created": "Wed, 5 Sep 2012 09:55:27 GMT" } ]
2012-11-07T00:00:00
[ [ "Huang", "Junming", "" ], [ "Cheng", "Xue-Qi", "" ], [ "Shen", "Hua-Wei", "" ], [ "Sun", "Xiaoming", "" ], [ "Zhou", "Tao", "" ], [ "Jin", "Xiaolong", "" ] ]
TITLE: Conquering the rating bound problem in neighborhood-based collaborative filtering: a function recovery approach ABSTRACT: As an important tool for information filtering in the era of socialized web, recommender systems have witnessed rapid development in the last decade. As benefited from the better interp...
1211.1136
Malathi Subramanian
S.Malathi and S.Sridhar
Estimation of Effort in Software Cost Analysis for Heterogenous Dataset using Fuzzy Analogy
5 pages,5 figures
Journal of IEEE Transactions on Software Engineering,2010
null
null
cs.SE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the significant objectives of software engineering community is to use effective and useful models for precise calculation of effort in software cost estimation. The existing techniques cannot handle the dataset having categorical variables efficiently including the commonly used analogy method. Also, the proj...
[ { "version": "v1", "created": "Tue, 6 Nov 2012 08:15:30 GMT" } ]
2012-11-07T00:00:00
[ [ "Malathi", "S.", "" ], [ "Sridhar", "S.", "" ] ]
TITLE: Estimation of Effort in Software Cost Analysis for Heterogenous Dataset using Fuzzy Analogy ABSTRACT: One of the significant objectives of software engineering community is to use effective and useful models for precise calculation of effort in software cost estimation. The existing techniques cannot handl...
1205.6326
Iain Murray
Krzysztof Chalupka, Christopher K. I. Williams and Iain Murray
A Framework for Evaluating Approximation Methods for Gaussian Process Regression
19 pages, 4 figures
null
null
null
stat.ML cs.LG stat.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gaussian process (GP) predictors are an important component of many Bayesian approaches to machine learning. However, even a straightforward implementation of Gaussian process regression (GPR) requires O(n^2) space and O(n^3) time for a dataset of n examples. Several approximation methods have been proposed, but ther...
[ { "version": "v1", "created": "Tue, 29 May 2012 10:59:30 GMT" }, { "version": "v2", "created": "Mon, 5 Nov 2012 17:39:32 GMT" } ]
2012-11-06T00:00:00
[ [ "Chalupka", "Krzysztof", "" ], [ "Williams", "Christopher K. I.", "" ], [ "Murray", "Iain", "" ] ]
TITLE: A Framework for Evaluating Approximation Methods for Gaussian Process Regression ABSTRACT: Gaussian process (GP) predictors are an important component of many Bayesian approaches to machine learning. However, even a straightforward implementation of Gaussian process regression (GPR) requires O(n^2) space a...
1211.0498
Rami Al-Rfou'
Rami Al-Rfou'
Detecting English Writing Styles For Non-native Speakers
null
null
null
null
cs.CL
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Analyzing writing styles of non-native speakers is a challenging task. In this paper, we analyze the comments written in the discussion pages of the English Wikipedia. Using learning algorithms, we are able to detect native speakers' writing style with an accuracy of 74%. Given the diversity of the English Wikipedia ...
[ { "version": "v1", "created": "Fri, 2 Nov 2012 17:37:06 GMT" } ]
2012-11-05T00:00:00
[ [ "Al-Rfou'", "Rami", "" ] ]
TITLE: Detecting English Writing Styles For Non-native Speakers ABSTRACT: Analyzing writing styles of non-native speakers is a challenging task. In this paper, we analyze the comments written in the discussion pages of the English Wikipedia. Using learning algorithms, we are able to detect native speakers' writing ...
1211.0210
Sundararajan Sellamanickam
Sathiya Keerthi Selvaraj, Sundararajan Sellamanickam, Shirish Shevade
Extension of TSVM to Multi-Class and Hierarchical Text Classification Problems With General Losses
null
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Transductive SVM (TSVM) is a well known semi-supervised large margin learning method for binary text classification. In this paper we extend this method to multi-class and hierarchical classification problems. We point out that the determination of labels of unlabeled examples with fixed classifier weights is a linea...
[ { "version": "v1", "created": "Thu, 1 Nov 2012 15:52:11 GMT" } ]
2012-11-02T00:00:00
[ [ "Selvaraj", "Sathiya Keerthi", "" ], [ "Sellamanickam", "Sundararajan", "" ], [ "Shevade", "Shirish", "" ] ]
TITLE: Extension of TSVM to Multi-Class and Hierarchical Text Classification Problems With General Losses ABSTRACT: Transductive SVM (TSVM) is a well known semi-supervised large margin learning method for binary text classification. In this paper we extend this method to multi-class and hierarchical classificatio...
1211.0224
Lorena Etcheverry
Lorena Etcheverry and Alejandro A. Vaisman
Views over RDF Datasets: A State-of-the-Art and Open Challenges
null
null
null
null
cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Views on RDF datasets have been discussed in several works, nevertheless there is no consensus on their definition nor the requirements they should fulfill. In traditional data management systems, views have proved to be useful in different application scenarios such as data integration, query answering, data securit...
[ { "version": "v1", "created": "Thu, 1 Nov 2012 17:00:27 GMT" } ]
2012-11-02T00:00:00
[ [ "Etcheverry", "Lorena", "" ], [ "Vaisman", "Alejandro A.", "" ] ]
TITLE: Views over RDF Datasets: A State-of-the-Art and Open Challenges ABSTRACT: Views on RDF datasets have been discussed in several works, nevertheless there is no consensus on their definition nor the requirements they should fulfill. In traditional data management systems, views have proved to be useful in diff...
1210.3926
Julian McAuley
Julian McAuley, Jure Leskovec, Dan Jurafsky
Learning Attitudes and Attributes from Multi-Aspect Reviews
11 pages, 6 figures, extended version of our ICDM 2012 submission
null
null
null
cs.CL cs.IR cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The majority of online reviews consist of plain-text feedback together with a single numeric score. However, there are multiple dimensions to products and opinions, and understanding the `aspects' that contribute to users' ratings may help us to better understand their individual preferences. For example, a user's im...
[ { "version": "v1", "created": "Mon, 15 Oct 2012 07:36:57 GMT" }, { "version": "v2", "created": "Wed, 31 Oct 2012 16:14:35 GMT" } ]
2012-11-01T00:00:00
[ [ "McAuley", "Julian", "" ], [ "Leskovec", "Jure", "" ], [ "Jurafsky", "Dan", "" ] ]
TITLE: Learning Attitudes and Attributes from Multi-Aspect Reviews ABSTRACT: The majority of online reviews consist of plain-text feedback together with a single numeric score. However, there are multiple dimensions to products and opinions, and understanding the `aspects' that contribute to users' ratings may help...
1210.8353
Alex Susemihl
Chris H\"ausler, Alex Susemihl
Temporal Autoencoding Restricted Boltzmann Machine
null
null
null
null
stat.ML cs.AI cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Much work has been done refining and characterizing the receptive fields learned by deep learning algorithms. A lot of this work has focused on the development of Gabor-like filters learned when enforcing sparsity constraints on a natural image dataset. Little work however has investigated how these filters might exp...
[ { "version": "v1", "created": "Wed, 31 Oct 2012 14:55:50 GMT" } ]
2012-11-01T00:00:00
[ [ "Häusler", "Chris", "" ], [ "Susemihl", "Alex", "" ] ]
TITLE: Temporal Autoencoding Restricted Boltzmann Machine ABSTRACT: Much work has been done refining and characterizing the receptive fields learned by deep learning algorithms. A lot of this work has focused on the development of Gabor-like filters learned when enforcing sparsity constraints on a natural image dat...
1210.7657
Antonio Giuliano Zippo Dr.
Antonio Giuliano Zippo
Text Classification with Compression Algorithms
null
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This work concerns a comparison of SVM kernel methods in text categorization tasks. In particular I define a kernel function that estimates the similarity between two objects computing by their compressed lengths. In fact, compression algorithms can detect arbitrarily long dependencies within the text strings. Data t...
[ { "version": "v1", "created": "Mon, 29 Oct 2012 13:30:27 GMT" } ]
2012-10-30T00:00:00
[ [ "Zippo", "Antonio Giuliano", "" ] ]
TITLE: Text Classification with Compression Algorithms ABSTRACT: This work concerns a comparison of SVM kernel methods in text categorization tasks. In particular I define a kernel function that estimates the similarity between two objects computing by their compressed lengths. In fact, compression algorithms can d...
1210.7191
Robert Dunn
Robert J. H. Dunn (1), Kate M. Willett (1), Peter W. Thorne (2,3), Emma V. Woolley, Imke Durre (3), Aiguo Dai (4), David E. Parker (1), Russ E. Vose (3) ((1) Met Office Hadley Centre, Exeter, UK, (2) CICS-NC, Asheville, NC, (3) NOAA NCDC, Asheville, NC, (4) NCAR, Boulder, CO)
HadISD: a quality-controlled global synoptic report database for selected variables at long-term stations from 1973--2011
Published in Climate of the Past, www.clim-past.net/8/1649/2012/. 31 pages, 23 figures, 9 pages. For data see http://www.metoffice.gov.uk/hadobs/hadisd
Clim. Past, 8, 1649-1679 (2012)
10.5194/cp-8-1649-2012
null
physics.ao-ph
http://creativecommons.org/licenses/by/3.0/
[Abridged] This paper describes the creation of HadISD: an automatically quality-controlled synoptic resolution dataset of temperature, dewpoint temperature, sea-level pressure, wind speed, wind direction and cloud cover from global weather stations for 1973--2011. The full dataset consists of over 6000 stations, wit...
[ { "version": "v1", "created": "Fri, 26 Oct 2012 16:57:09 GMT" } ]
2012-10-29T00:00:00
[ [ "Dunn", "Robert J. H.", "" ], [ "Willett", "Kate M.", "" ], [ "Thorne", "Peter W.", "" ], [ "Woolley", "Emma V.", "" ], [ "Durre", "Imke", "" ], [ "Dai", "Aiguo", "" ], [ "Parker", "David E.", "" ], [ ...
TITLE: HadISD: a quality-controlled global synoptic report database for selected variables at long-term stations from 1973--2011 ABSTRACT: [Abridged] This paper describes the creation of HadISD: an automatically quality-controlled synoptic resolution dataset of temperature, dewpoint temperature, sea-level pressur...
1210.6891
Clifton Phua
Clifton Phua, Hong Cao, Jo\~ao B\'artolo Gomes, Minh Nhut Nguyen
Predicting Near-Future Churners and Win-Backs in the Telecommunications Industry
null
null
null
null
cs.CE cs.LG
http://creativecommons.org/licenses/by-nc-sa/3.0/
In this work, we presented the strategies and techniques that we have developed for predicting the near-future churners and win-backs for a telecom company. On a large-scale and real-world database containing customer profiles and some transaction data from a telecom company, we first analyzed the data schema, develo...
[ { "version": "v1", "created": "Wed, 24 Oct 2012 05:56:45 GMT" } ]
2012-10-26T00:00:00
[ [ "Phua", "Clifton", "" ], [ "Cao", "Hong", "" ], [ "Gomes", "João Bártolo", "" ], [ "Nguyen", "Minh Nhut", "" ] ]
TITLE: Predicting Near-Future Churners and Win-Backs in the Telecommunications Industry ABSTRACT: In this work, we presented the strategies and techniques that we have developed for predicting the near-future churners and win-backs for a telecom company. On a large-scale and real-world database containing custome...
1210.6497
Zhipeng Luo
Daifeng Li, Ying Ding, Xin Shuai, Golden Guo-zheng Sun, Jie Tang, Zhipeng Luo, Jingwei Zhang and Guo Zhang
Topic-Level Opinion Influence Model(TOIM): An Investigation Using Tencent Micro-Blogging
PLOS ONE Manuscript Draft
null
null
null
cs.SI cs.CY cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Mining user opinion from Micro-Blogging has been extensively studied on the most popular social networking sites such as Twitter and Facebook in the U.S., but few studies have been done on Micro-Blogging websites in other countries (e.g. China). In this paper, we analyze the social opinion influence on Tencent, one o...
[ { "version": "v1", "created": "Wed, 24 Oct 2012 11:51:21 GMT" } ]
2012-10-25T00:00:00
[ [ "Li", "Daifeng", "" ], [ "Ding", "Ying", "" ], [ "Shuai", "Xin", "" ], [ "Sun", "Golden Guo-zheng", "" ], [ "Tang", "Jie", "" ], [ "Luo", "Zhipeng", "" ], [ "Zhang", "Jingwei", "" ], [ "Zhang", ...
TITLE: Topic-Level Opinion Influence Model(TOIM): An Investigation Using Tencent Micro-Blogging ABSTRACT: Mining user opinion from Micro-Blogging has been extensively studied on the most popular social networking sites such as Twitter and Facebook in the U.S., but few studies have been done on Micro-Blogging webs...
1210.6122
Dr Munaga HM Krishna Prasad
Hazarath Munaga and Venkata Jarugumalli
Performance Evaluation: Ball-Tree and KD-Tree in the Context of MST
4 pages
http://link.springer.com/chapter/10.1007%2F978-3-642-32573-1_38?LI=true 2012
10.1007/978-3-642-32573-1_38
null
cs.PF
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Now a days many algorithms are invented or being inventing to find the solution for Euclidean Minimum Spanning Tree, EMST, problem, as its applicability is increasing in much wide range of fields containing spatial or spatio temporal data viz. astronomy which consists of millions of spatial data. To solve this proble...
[ { "version": "v1", "created": "Tue, 23 Oct 2012 04:09:30 GMT" } ]
2012-10-24T00:00:00
[ [ "Munaga", "Hazarath", "" ], [ "Jarugumalli", "Venkata", "" ] ]
TITLE: Performance Evaluation: Ball-Tree and KD-Tree in the Context of MST ABSTRACT: Now a days many algorithms are invented or being inventing to find the solution for Euclidean Minimum Spanning Tree, EMST, problem, as its applicability is increasing in much wide range of fields containing spatial or spatio tempor...
1210.5873
Ayodeji Akinduko Mr
A. A. Akinduko and E. M. Mirkes
Initialization of Self-Organizing Maps: Principal Components Versus Random Initialization. A Case Study
18 pages, 6 figures
null
null
null
stat.ML cs.LG
http://creativecommons.org/licenses/by/3.0/
The performance of the Self-Organizing Map (SOM) algorithm is dependent on the initial weights of the map. The different initialization methods can broadly be classified into random and data analysis based initialization approach. In this paper, the performance of random initialization (RI) approach is compared to th...
[ { "version": "v1", "created": "Mon, 22 Oct 2012 11:17:31 GMT" } ]
2012-10-23T00:00:00
[ [ "Akinduko", "A. A.", "" ], [ "Mirkes", "E. M.", "" ] ]
TITLE: Initialization of Self-Organizing Maps: Principal Components Versus Random Initialization. A Case Study ABSTRACT: The performance of the Self-Organizing Map (SOM) algorithm is dependent on the initial weights of the map. The different initialization methods can broadly be classified into random and data an...
1210.4839
Stephane Caron
Stephane Caron, Branislav Kveton, Marc Lelarge, Smriti Bhagat
Leveraging Side Observations in Stochastic Bandits
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-142-151
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper considers stochastic bandits with side observations, a model that accounts for both the exploration/exploitation dilemma and relationships between arms. In this setting, after pulling an arm i, the decision maker also observes the rewards for some other actions related to i. We will see that this model is ...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:32:09 GMT" } ]
2012-10-19T00:00:00
[ [ "Caron", "Stephane", "" ], [ "Kveton", "Branislav", "" ], [ "Lelarge", "Marc", "" ], [ "Bhagat", "Smriti", "" ] ]
TITLE: Leveraging Side Observations in Stochastic Bandits ABSTRACT: This paper considers stochastic bandits with side observations, a model that accounts for both the exploration/exploitation dilemma and relationships between arms. In this setting, after pulling an arm i, the decision maker also observes the reward...
1210.4851
Sreangsu Acharyya
Sreangsu Acharyya, Oluwasanmi Koyejo, Joydeep Ghosh
Learning to Rank With Bregman Divergences and Monotone Retargeting
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-15-25
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper introduces a novel approach for learning to rank (LETOR) based on the notion of monotone retargeting. It involves minimizing a divergence between all monotonic increasing transformations of the training scores and a parameterized prediction function. The minimization is both over the transformations as wel...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:35:52 GMT" } ]
2012-10-19T00:00:00
[ [ "Acharyya", "Sreangsu", "" ], [ "Koyejo", "Oluwasanmi", "" ], [ "Ghosh", "Joydeep", "" ] ]
TITLE: Learning to Rank With Bregman Divergences and Monotone Retargeting ABSTRACT: This paper introduces a novel approach for learning to rank (LETOR) based on the notion of monotone retargeting. It involves minimizing a divergence between all monotonic increasing transformations of the training scores and a param...
1210.4854
Hannaneh Hajishirzi
Hannaneh Hajishirzi, Mohammad Rastegari, Ali Farhadi, Jessica K. Hodgins
Semantic Understanding of Professional Soccer Commentaries
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-326-335
cs.CL cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents a novel approach to the problem of semantic parsing via learning the correspondences between complex sentences and rich sets of events. Our main intuition is that correct correspondences tend to occur more frequently. Our model benefits from a discriminative notion of similarity to learn the corre...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:37:21 GMT" } ]
2012-10-19T00:00:00
[ [ "Hajishirzi", "Hannaneh", "" ], [ "Rastegari", "Mohammad", "" ], [ "Farhadi", "Ali", "" ], [ "Hodgins", "Jessica K.", "" ] ]
TITLE: Semantic Understanding of Professional Soccer Commentaries ABSTRACT: This paper presents a novel approach to the problem of semantic parsing via learning the correspondences between complex sentences and rich sets of events. Our main intuition is that correct correspondences tend to occur more frequently. Ou...
1210.4856
Roger Grosse
Roger Grosse, Ruslan R Salakhutdinov, William T. Freeman, Joshua B. Tenenbaum
Exploiting compositionality to explore a large space of model structures
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-306-315
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent proliferation of richly structured probabilistic models raises the question of how to automatically determine an appropriate model for a dataset. We investigate this question for a space of matrix decomposition models which can express a variety of widely used models from unsupervised learning. To enable m...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:37:41 GMT" } ]
2012-10-19T00:00:00
[ [ "Grosse", "Roger", "" ], [ "Salakhutdinov", "Ruslan R", "" ], [ "Freeman", "William T.", "" ], [ "Tenenbaum", "Joshua B.", "" ] ]
TITLE: Exploiting compositionality to explore a large space of model structures ABSTRACT: The recent proliferation of richly structured probabilistic models raises the question of how to automatically determine an appropriate model for a dataset. We investigate this question for a space of matrix decomposition mode...
1210.4874
Hoong Chuin Lau
Hoong Chuin Lau, William Yeoh, Pradeep Varakantham, Duc Thien Nguyen, Huaxing Chen
Dynamic Stochastic Orienteering Problems for Risk-Aware Applications
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-448-458
cs.AI cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Orienteering problems (OPs) are a variant of the well-known prize-collecting traveling salesman problem, where the salesman needs to choose a subset of cities to visit within a given deadline. OPs and their extensions with stochastic travel times (SOPs) have been used to model vehicle routing problems and tourist tri...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:42:27 GMT" } ]
2012-10-19T00:00:00
[ [ "Lau", "Hoong Chuin", "" ], [ "Yeoh", "William", "" ], [ "Varakantham", "Pradeep", "" ], [ "Nguyen", "Duc Thien", "" ], [ "Chen", "Huaxing", "" ] ]
TITLE: Dynamic Stochastic Orienteering Problems for Risk-Aware Applications ABSTRACT: Orienteering problems (OPs) are a variant of the well-known prize-collecting traveling salesman problem, where the salesman needs to choose a subset of cities to visit within a given deadline. OPs and their extensions with stochas...
1210.4884
Ankur P. Parikh
Ankur P. Parikh, Le Song, Mariya Ishteva, Gabi Teodoru, Eric P. Xing
A Spectral Algorithm for Latent Junction Trees
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-675-684
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Latent variable models are an elegant framework for capturing rich probabilistic dependencies in many applications. However, current approaches typically parametrize these models using conditional probability tables, and learning relies predominantly on local search heuristics such as Expectation Maximization. Using ...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:45:30 GMT" } ]
2012-10-19T00:00:00
[ [ "Parikh", "Ankur P.", "" ], [ "Song", "Le", "" ], [ "Ishteva", "Mariya", "" ], [ "Teodoru", "Gabi", "" ], [ "Xing", "Eric P.", "" ] ]
TITLE: A Spectral Algorithm for Latent Junction Trees ABSTRACT: Latent variable models are an elegant framework for capturing rich probabilistic dependencies in many applications. However, current approaches typically parametrize these models using conditional probability tables, and learning relies predominantly o...
1210.4896
Daniel Lowd
Daniel Lowd
Closed-Form Learning of Markov Networks from Dependency Networks
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-533-542
cs.LG cs.AI stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Markov networks (MNs) are a powerful way to compactly represent a joint probability distribution, but most MN structure learning methods are very slow, due to the high cost of evaluating candidates structures. Dependency networks (DNs) represent a probability distribution as a set of conditional probability distribut...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:48:08 GMT" } ]
2012-10-19T00:00:00
[ [ "Lowd", "Daniel", "" ] ]
TITLE: Closed-Form Learning of Markov Networks from Dependency Networks ABSTRACT: Markov networks (MNs) are a powerful way to compactly represent a joint probability distribution, but most MN structure learning methods are very slow, due to the high cost of evaluating candidates structures. Dependency networks (DNs...
1210.4909
Jens Roeder
Jens Roeder, Boaz Nadler, Kevin Kunzmann, Fred A. Hamprecht
Active Learning with Distributional Estimates
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-715-725
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Active Learning (AL) is increasingly important in a broad range of applications. Two main AL principles to obtain accurate classification with few labeled data are refinement of the current decision boundary and exploration of poorly sampled regions. In this paper we derive a novel AL scheme that balances these two p...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:53:17 GMT" } ]
2012-10-19T00:00:00
[ [ "Roeder", "Jens", "" ], [ "Nadler", "Boaz", "" ], [ "Kunzmann", "Kevin", "" ], [ "Hamprecht", "Fred A.", "" ] ]
TITLE: Active Learning with Distributional Estimates ABSTRACT: Active Learning (AL) is increasingly important in a broad range of applications. Two main AL principles to obtain accurate classification with few labeled data are refinement of the current decision boundary and exploration of poorly sampled regions. In...
1210.4913
Changhe Yuan
Changhe Yuan, Brandon Malone
An Improved Admissible Heuristic for Learning Optimal Bayesian Networks
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-924-933
cs.AI cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently two search algorithms, A* and breadth-first branch and bound (BFBnB), were developed based on a simple admissible heuristic for learning Bayesian network structures that optimize a scoring function. The heuristic represents a relaxation of the learning problem such that each variable chooses optimal parents ...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:55:57 GMT" } ]
2012-10-19T00:00:00
[ [ "Yuan", "Changhe", "" ], [ "Malone", "Brandon", "" ] ]
TITLE: An Improved Admissible Heuristic for Learning Optimal Bayesian Networks ABSTRACT: Recently two search algorithms, A* and breadth-first branch and bound (BFBnB), were developed based on a simple admissible heuristic for learning Bayesian network structures that optimize a scoring function. The heuristic repre...
1210.4919
Mirwaes Wahabzada
Mirwaes Wahabzada, Kristian Kersting, Christian Bauckhage, Christoph Roemer, Agim Ballvora, Francisco Pinto, Uwe Rascher, Jens Leon, Lutz Ploemer
Latent Dirichlet Allocation Uncovers Spectral Characteristics of Drought Stressed Plants
Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012)
null
null
UAI-P-2012-PG-852-862
cs.LG cs.CE stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Understanding the adaptation process of plants to drought stress is essential in improving management practices, breeding strategies as well as engineering viable crops for a sustainable agriculture in the coming decades. Hyper-spectral imaging provides a particularly promising approach to gain such understanding sin...
[ { "version": "v1", "created": "Tue, 16 Oct 2012 17:57:06 GMT" } ]
2012-10-19T00:00:00
[ [ "Wahabzada", "Mirwaes", "" ], [ "Kersting", "Kristian", "" ], [ "Bauckhage", "Christian", "" ], [ "Roemer", "Christoph", "" ], [ "Ballvora", "Agim", "" ], [ "Pinto", "Francisco", "" ], [ "Rascher", "Uwe", "...
TITLE: Latent Dirichlet Allocation Uncovers Spectral Characteristics of Drought Stressed Plants ABSTRACT: Understanding the adaptation process of plants to drought stress is essential in improving management practices, breeding strategies as well as engineering viable crops for a sustainable agriculture in the co...
1210.5135
Yang Lu
Yang Lu, Mengying Wang, Menglu Li, Qili Zhu, Bo Yuan
LSBN: A Large-Scale Bayesian Structure Learning Framework for Model Averaging
13 pages, 6 figures
null
null
null
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The motivation for this paper is to apply Bayesian structure learning using Model Averaging in large-scale networks. Currently, Bayesian model averaging algorithm is applicable to networks with only tens of variables, restrained by its super-exponential complexity. We present a novel framework, called LSBN(Large-Scal...
[ { "version": "v1", "created": "Thu, 18 Oct 2012 14:15:40 GMT" } ]
2012-10-19T00:00:00
[ [ "Lu", "Yang", "" ], [ "Wang", "Mengying", "" ], [ "Li", "Menglu", "" ], [ "Zhu", "Qili", "" ], [ "Yuan", "Bo", "" ] ]
TITLE: LSBN: A Large-Scale Bayesian Structure Learning Framework for Model Averaging ABSTRACT: The motivation for this paper is to apply Bayesian structure learning using Model Averaging in large-scale networks. Currently, Bayesian model averaging algorithm is applicable to networks with only tens of variables, r...
1210.3165
Ayatullah Faruk Mollah
Ayatullah Faruk Mollah, Subhadip Basu, Mita Nasipuri
Computationally Efficient Implementation of Convolution-based Locally Adaptive Binarization Techniques
null
Proc. of Int'l Conf. on Information Processing, Springer, CCIS 292, pp. 159-168, 2012
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most important steps of document image processing is binarization. The computational requirements of locally adaptive binarization techniques make them unsuitable for devices with limited computing facilities. In this paper, we have presented a computationally efficient implementation of convolution based ...
[ { "version": "v1", "created": "Thu, 11 Oct 2012 10:04:44 GMT" } ]
2012-10-12T00:00:00
[ [ "Mollah", "Ayatullah Faruk", "" ], [ "Basu", "Subhadip", "" ], [ "Nasipuri", "Mita", "" ] ]
TITLE: Computationally Efficient Implementation of Convolution-based Locally Adaptive Binarization Techniques ABSTRACT: One of the most important steps of document image processing is binarization. The computational requirements of locally adaptive binarization techniques make them unsuitable for devices with lim...
1210.3266
Marco Pellegrini
Marco Pellegrini, Filippo Geraci, Miriam Baglioni
Detecting dense communities in large social and information networks with the Core & Peel algorithm
null
null
null
null
cs.SI cs.DS physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Detecting and characterizing dense subgraphs (tight communities) in social and information networks is an important exploratory tool in social network analysis. Several approaches have been proposed that either (i) partition the whole network into clusters, even in low density region, or (ii) are aimed at finding a s...
[ { "version": "v1", "created": "Thu, 11 Oct 2012 15:17:35 GMT" } ]
2012-10-12T00:00:00
[ [ "Pellegrini", "Marco", "" ], [ "Geraci", "Filippo", "" ], [ "Baglioni", "Miriam", "" ] ]
TITLE: Detecting dense communities in large social and information networks with the Core & Peel algorithm ABSTRACT: Detecting and characterizing dense subgraphs (tight communities) in social and information networks is an important exploratory tool in social network analysis. Several approaches have been propose...
1210.3288
Willie Neiswanger
Willie Neiswanger, Frank Wood
Unsupervised Detection and Tracking of Arbitrary Objects with Dependent Dirichlet Process Mixtures
21 pages, 7 figures
null
null
null
stat.ML cs.CV cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper proposes a technique for the unsupervised detection and tracking of arbitrary objects in videos. It is intended to reduce the need for detection and localization methods tailored to specific object types and serve as a general framework applicable to videos with varied objects, backgrounds, and image quali...
[ { "version": "v1", "created": "Thu, 11 Oct 2012 16:30:15 GMT" } ]
2012-10-12T00:00:00
[ [ "Neiswanger", "Willie", "" ], [ "Wood", "Frank", "" ] ]
TITLE: Unsupervised Detection and Tracking of Arbitrary Objects with Dependent Dirichlet Process Mixtures ABSTRACT: This paper proposes a technique for the unsupervised detection and tracking of arbitrary objects in videos. It is intended to reduce the need for detection and localization methods tailored to speci...
1210.3312
Juan Manuel Torres Moreno
Juan-Manuel Torres-Moreno
Artex is AnotheR TEXt summarizer
11 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:1209.3126
null
null
null
cs.IR cs.AI cs.CL
http://creativecommons.org/licenses/by/3.0/
This paper describes Artex, another algorithm for Automatic Text Summarization. In order to rank sentences, a simple inner product is calculated between each sentence, a document vector (text topic) and a lexical vector (vocabulary used by a sentence). Summaries are then generated by assembling the highest ranked sen...
[ { "version": "v1", "created": "Thu, 11 Oct 2012 18:21:01 GMT" } ]
2012-10-12T00:00:00
[ [ "Torres-Moreno", "Juan-Manuel", "" ] ]
TITLE: Artex is AnotheR TEXt summarizer ABSTRACT: This paper describes Artex, another algorithm for Automatic Text Summarization. In order to rank sentences, a simple inner product is calculated between each sentence, a document vector (text topic) and a lexical vector (vocabulary used by a sentence). Summaries are...
1210.2752
Andrea Capocci
Andrea Capocci, Andrea Baldassarri, Vito D. P. Servedio, Vittorio Loreto
Statistical Properties of Inter-arrival Times Distribution in Social Tagging Systems
6 pages, 10 figures; Proceedings of the 20th ACM conference on Hypertext and hypermedia, 2009
null
10.1145/1557914.1557955
null
physics.soc-ph cs.IR cs.SI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Folksonomies provide a rich source of data to study social patterns taking place on the World Wide Web. Here we study the temporal patterns of users' tagging activity. We show that the statistical properties of inter-arrival times between subsequent tagging events cannot be explained without taking into account corre...
[ { "version": "v1", "created": "Tue, 9 Oct 2012 20:47:33 GMT" } ]
2012-10-11T00:00:00
[ [ "Capocci", "Andrea", "" ], [ "Baldassarri", "Andrea", "" ], [ "Servedio", "Vito D. P.", "" ], [ "Loreto", "Vittorio", "" ] ]
TITLE: Statistical Properties of Inter-arrival Times Distribution in Social Tagging Systems ABSTRACT: Folksonomies provide a rich source of data to study social patterns taking place on the World Wide Web. Here we study the temporal patterns of users' tagging activity. We show that the statistical properties of i...
1210.2838
Stefan Seer
Stefan Seer, Norbert Br\"andle, Carlo Ratti
Kinects and Human Kinetics: A New Approach for Studying Crowd Behavior
Preprint submitted to Transportation Research Part C: Emerging Technologies, September 11, 2012
null
null
null
cs.CV physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Modeling crowd behavior relies on accurate data of pedestrian movements at a high level of detail. Imaging sensors such as cameras provide a good basis for capturing such detailed pedestrian motion data. However, currently available computer vision technologies, when applied to conventional video footage, still canno...
[ { "version": "v1", "created": "Wed, 10 Oct 2012 09:06:04 GMT" } ]
2012-10-11T00:00:00
[ [ "Seer", "Stefan", "" ], [ "Brändle", "Norbert", "" ], [ "Ratti", "Carlo", "" ] ]
TITLE: Kinects and Human Kinetics: A New Approach for Studying Crowd Behavior ABSTRACT: Modeling crowd behavior relies on accurate data of pedestrian movements at a high level of detail. Imaging sensors such as cameras provide a good basis for capturing such detailed pedestrian motion data. However, currently avail...
1210.2872
Kulthida Tuamsuk
Tipawan Silwattananusarn and Kulthida Tuamsuk
Data Mining and Its Applications for Knowledge Management: A Literature Review from 2007 to 2012
12 pages, 4 figures
International Journal of Data Mining & Knowledge Management Process (IJDKP) Vol.2, No.5, 2012, pp. 13-24
null
null
cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Data mining is one of the most important steps of the knowledge discovery in databases process and is considered as significant subfield in knowledge management. Research in data mining continues growing in business and in learning organization over coming decades. This review paper explores the applications of data ...
[ { "version": "v1", "created": "Wed, 10 Oct 2012 11:12:13 GMT" } ]
2012-10-11T00:00:00
[ [ "Silwattananusarn", "Tipawan", "" ], [ "Tuamsuk", "Kulthida", "" ] ]
TITLE: Data Mining and Its Applications for Knowledge Management: A Literature Review from 2007 to 2012 ABSTRACT: Data mining is one of the most important steps of the knowledge discovery in databases process and is considered as significant subfield in knowledge management. Research in data mining continues grow...
1210.2401
Biao Xu
Biao Xu, Ruair\'i de Fr\'ein, Eric Robson and M\'iche\'al \'O Foghl\'u
Distributed Formal Concept Analysis Algorithms Based on an Iterative MapReduce Framework
17 pages, ICFCA 201, Formal Concept Analysis 2012
null
10.1007/978-3-642-29892-9_26
null
cs.DC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While many existing formal concept analysis algorithms are efficient, they are typically unsuitable for distributed implementation. Taking the MapReduce (MR) framework as our inspiration we introduce a distributed approach for performing formal concept mining. Our method has its novelty in that we use a light-weight ...
[ { "version": "v1", "created": "Fri, 5 Oct 2012 10:28:24 GMT" } ]
2012-10-10T00:00:00
[ [ "Xu", "Biao", "" ], [ "de Fréin", "Ruairí", "" ], [ "Robson", "Eric", "" ], [ "Foghlú", "Mícheál Ó", "" ] ]
TITLE: Distributed Formal Concept Analysis Algorithms Based on an Iterative MapReduce Framework ABSTRACT: While many existing formal concept analysis algorithms are efficient, they are typically unsuitable for distributed implementation. Taking the MapReduce (MR) framework as our inspiration we introduce a distri...
1210.2406
Ali Tajer
Ali Tajer and H. Vincent Poor
Quick Search for Rare Events
null
null
null
null
cs.IT math.IT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Rare events can potentially occur in many applications. When manifested as opportunities to be exploited, risks to be ameliorated, or certain features to be extracted, such events become of paramount significance. Due to their sporadic nature, the information-bearing signals associated with rare events often lie in a...
[ { "version": "v1", "created": "Mon, 8 Oct 2012 20:15:32 GMT" } ]
2012-10-10T00:00:00
[ [ "Tajer", "Ali", "" ], [ "Poor", "H. Vincent", "" ] ]
TITLE: Quick Search for Rare Events ABSTRACT: Rare events can potentially occur in many applications. When manifested as opportunities to be exploited, risks to be ameliorated, or certain features to be extracted, such events become of paramount significance. Due to their sporadic nature, the information-bearing si...
1210.2515
Peijun Zhu
Ting Huang, Peijun Zhu, Zengyou He
Protein Inference and Protein Quantification: Two Sides of the Same Coin
14 Pages, This paper has submitted to RECOMB2013
null
null
null
cs.CE cs.DS q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: In mass spectrometry-based shotgun proteomics, protein quantification and protein identification are two major computational problems. To quantify the protein abundance, a list of proteins must be firstly inferred from the sample. Then the relative or absolute protein abundance is estimated with quantific...
[ { "version": "v1", "created": "Tue, 9 Oct 2012 07:36:26 GMT" } ]
2012-10-10T00:00:00
[ [ "Huang", "Ting", "" ], [ "Zhu", "Peijun", "" ], [ "He", "Zengyou", "" ] ]
TITLE: Protein Inference and Protein Quantification: Two Sides of the Same Coin ABSTRACT: Motivation: In mass spectrometry-based shotgun proteomics, protein quantification and protein identification are two major computational problems. To quantify the protein abundance, a list of proteins must be firstly inferred ...
1210.2695
Lyndie Chiou
Lyndie Chiou
The Association of the Moon and the Sun with Large Earthquakes
null
null
null
null
physics.geo-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The role of the moon in triggering earthquakes has been studied since the early 1900s. Theory states that as land tides swept by the moon cross fault lines, stress in the Earth's plates intensifies, increasing the likelihood of small earthquakes. This paper studied the association of the moon and sun with larger magn...
[ { "version": "v1", "created": "Tue, 9 Oct 2012 19:12:29 GMT" } ]
2012-10-10T00:00:00
[ [ "Chiou", "Lyndie", "" ] ]
TITLE: The Association of the Moon and the Sun with Large Earthquakes ABSTRACT: The role of the moon in triggering earthquakes has been studied since the early 1900s. Theory states that as land tides swept by the moon cross fault lines, stress in the Earth's plates intensifies, increasing the likelihood of small ea...
1210.0310
Rahele Kafieh
Raheleh Kafieh, Hossein Rabbani, Michael D. Abramoff, Milan Sonka
Intra-Retinal Layer Segmentation of 3D Optical Coherence Tomography Using Coarse Grained Diffusion Map
30 pages,32 figures
null
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Optical coherence tomography (OCT) is a powerful and noninvasive method for retinal imaging. In this paper, we introduce a fast segmentation method based on a new variant of spectral graph theory named diffusion maps. The research is performed on spectral domain (SD) OCT images depicting macular and optic nerve head ...
[ { "version": "v1", "created": "Mon, 1 Oct 2012 08:52:29 GMT" }, { "version": "v2", "created": "Mon, 8 Oct 2012 11:05:28 GMT" } ]
2012-10-09T00:00:00
[ [ "Kafieh", "Raheleh", "" ], [ "Rabbani", "Hossein", "" ], [ "Abramoff", "Michael D.", "" ], [ "Sonka", "Milan", "" ] ]
TITLE: Intra-Retinal Layer Segmentation of 3D Optical Coherence Tomography Using Coarse Grained Diffusion Map ABSTRACT: Optical coherence tomography (OCT) is a powerful and noninvasive method for retinal imaging. In this paper, we introduce a fast segmentation method based on a new variant of spectral graph theor...
1210.2162
Peter Welinder
Peter Welinder and Max Welling and Pietro Perona
Semisupervised Classifier Evaluation and Recalibration
null
null
null
null
cs.LG cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
How many labeled examples are needed to estimate a classifier's performance on a new dataset? We study the case where data is plentiful, but labels are expensive. We show that by making a few reasonable assumptions on the structure of the data, it is possible to estimate performance curves, with confidence bounds, us...
[ { "version": "v1", "created": "Mon, 8 Oct 2012 07:15:57 GMT" } ]
2012-10-09T00:00:00
[ [ "Welinder", "Peter", "" ], [ "Welling", "Max", "" ], [ "Perona", "Pietro", "" ] ]
TITLE: Semisupervised Classifier Evaluation and Recalibration ABSTRACT: How many labeled examples are needed to estimate a classifier's performance on a new dataset? We study the case where data is plentiful, but labels are expensive. We show that by making a few reasonable assumptions on the structure of the data,...
1210.2333
Richard Davy
Richard Davy and Igor Esau
Surface air temperature variability in global climate models
6 pages, 2 figures
null
null
null
physics.ao-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New results from the Coupled Model Inter-comparison Project phase 5 (CMIP5) and multiple global reanalysis datasets are used to investigate the relationship between the mean and standard deviation in the surface air temperature. A combination of a land-sea mask and orographic filter were used to investigate the geogr...
[ { "version": "v1", "created": "Mon, 8 Oct 2012 16:47:26 GMT" } ]
2012-10-09T00:00:00
[ [ "Davy", "Richard", "" ], [ "Esau", "Igor", "" ] ]
TITLE: Surface air temperature variability in global climate models ABSTRACT: New results from the Coupled Model Inter-comparison Project phase 5 (CMIP5) and multiple global reanalysis datasets are used to investigate the relationship between the mean and standard deviation in the surface air temperature. A combina...
1210.1714
Andrew N. Jackson
Andrew N. Jackson
Formats over Time: Exploring UK Web History
4 pages, 6 figures, presented at iPres 2012 in Toronto
null
null
null
cs.DL
http://creativecommons.org/licenses/by/3.0/
Is software obsolescence a significant risk? To explore this issue, we analysed a corpus of over 2.5 billion resources corresponding to the UK Web domain, as crawled between 1996 and 2010. Using the DROID and Apache Tika identification tools, we examined each resource and captured the results as extended MIME types, ...
[ { "version": "v1", "created": "Fri, 5 Oct 2012 11:34:33 GMT" } ]
2012-10-08T00:00:00
[ [ "Jackson", "Andrew N.", "" ] ]
TITLE: Formats over Time: Exploring UK Web History ABSTRACT: Is software obsolescence a significant risk? To explore this issue, we analysed a corpus of over 2.5 billion resources corresponding to the UK Web domain, as crawled between 1996 and 2010. Using the DROID and Apache Tika identification tools, we examined ...
1210.1258
Mariya Ishteva
Mariya Ishteva, Haesun Park, Le Song
Unfolding Latent Tree Structures using 4th Order Tensors
null
null
null
null
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Discovering the latent structure from many observed variables is an important yet challenging learning task. Existing approaches for discovering latent structures often require the unknown number of hidden states as an input. In this paper, we propose a quartet based approach which is \emph{agnostic} to this number. ...
[ { "version": "v1", "created": "Wed, 3 Oct 2012 23:30:24 GMT" } ]
2012-10-05T00:00:00
[ [ "Ishteva", "Mariya", "" ], [ "Park", "Haesun", "" ], [ "Song", "Le", "" ] ]
TITLE: Unfolding Latent Tree Structures using 4th Order Tensors ABSTRACT: Discovering the latent structure from many observed variables is an important yet challenging learning task. Existing approaches for discovering latent structures often require the unknown number of hidden states as an input. In this paper, w...
1210.1317
Phong Nguyen
Phong Nguyen, Jun Wang, Melanie Hilario and Alexandros Kalousis
Learning Heterogeneous Similarity Measures for Hybrid-Recommendations in Meta-Mining
null
null
null
null
cs.LG cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The notion of meta-mining has appeared recently and extends the traditional meta-learning in two ways. First it does not learn meta-models that provide support only for the learning algorithm selection task but ones that support the whole data-mining process. In addition it abandons the so called black-box approach t...
[ { "version": "v1", "created": "Thu, 4 Oct 2012 07:17:37 GMT" } ]
2012-10-05T00:00:00
[ [ "Nguyen", "Phong", "" ], [ "Wang", "Jun", "" ], [ "Hilario", "Melanie", "" ], [ "Kalousis", "Alexandros", "" ] ]
TITLE: Learning Heterogeneous Similarity Measures for Hybrid-Recommendations in Meta-Mining ABSTRACT: The notion of meta-mining has appeared recently and extends the traditional meta-learning in two ways. First it does not learn meta-models that provide support only for the learning algorithm selection task but o...
1210.1461
Shusen Wang
Shusen Wang, Zhihua Zhang, Jian Li
A Scalable CUR Matrix Decomposition Algorithm: Lower Time Complexity and Tighter Bound
accepted by NIPS 2012
Shusen Wang and Zhihua Zhang. A Scalable CUR Matrix Decomposition Algorithm: Lower Time Complexity and Tighter Bound. In Advances in Neural Information Processing Systems 25, 2012
null
null
cs.LG cs.DM stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CUR matrix decomposition is an important extension of Nystr\"{o}m approximation to a general matrix. It approximates any data matrix in terms of a small number of its columns and rows. In this paper we propose a novel randomized CUR algorithm with an expected relative-error bound. The proposed algorithm has the a...
[ { "version": "v1", "created": "Thu, 4 Oct 2012 14:23:34 GMT" } ]
2012-10-05T00:00:00
[ [ "Wang", "Shusen", "" ], [ "Zhang", "Zhihua", "" ], [ "Li", "Jian", "" ] ]
TITLE: A Scalable CUR Matrix Decomposition Algorithm: Lower Time Complexity and Tighter Bound ABSTRACT: The CUR matrix decomposition is an important extension of Nystr\"{o}m approximation to a general matrix. It approximates any data matrix in terms of a small number of its columns and rows. In this paper we prop...
1210.0386
Junlin Hu
Junlin Hu and Ping Guo
Combined Descriptors in Spatial Pyramid Domain for Image Classification
9 pages, 5 figures
null
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently spatial pyramid matching (SPM) with scale invariant feature transform (SIFT) descriptor has been successfully used in image classification. Unfortunately, the codebook generation and feature quantization procedures using SIFT feature have the high complexity both in time and space. To address this problem, i...
[ { "version": "v1", "created": "Mon, 1 Oct 2012 13:05:20 GMT" }, { "version": "v2", "created": "Tue, 2 Oct 2012 06:03:23 GMT" }, { "version": "v3", "created": "Wed, 3 Oct 2012 02:48:47 GMT" } ]
2012-10-04T00:00:00
[ [ "Hu", "Junlin", "" ], [ "Guo", "Ping", "" ] ]
TITLE: Combined Descriptors in Spatial Pyramid Domain for Image Classification ABSTRACT: Recently spatial pyramid matching (SPM) with scale invariant feature transform (SIFT) descriptor has been successfully used in image classification. Unfortunately, the codebook generation and feature quantization procedures usi...
1210.0564
Tao Hu
Tao Hu, Juan Nunez-Iglesias, Shiv Vitaladevuni, Lou Scheffer, Shan Xu, Mehdi Bolorizadeh, Harald Hess, Richard Fetter and Dmitri Chklovskii
Super-resolution using Sparse Representations over Learned Dictionaries: Reconstruction of Brain Structure using Electron Microscopy
12 pages, 11 figures
null
null
null
cs.CV q-bio.NC stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A central problem in neuroscience is reconstructing neuronal circuits on the synapse level. Due to a wide range of scales in brain architecture such reconstruction requires imaging that is both high-resolution and high-throughput. Existing electron microscopy (EM) techniques possess required resolution in the lateral...
[ { "version": "v1", "created": "Mon, 1 Oct 2012 20:30:36 GMT" } ]
2012-10-03T00:00:00
[ [ "Hu", "Tao", "" ], [ "Nunez-Iglesias", "Juan", "" ], [ "Vitaladevuni", "Shiv", "" ], [ "Scheffer", "Lou", "" ], [ "Xu", "Shan", "" ], [ "Bolorizadeh", "Mehdi", "" ], [ "Hess", "Harald", "" ], [ "Fet...
TITLE: Super-resolution using Sparse Representations over Learned Dictionaries: Reconstruction of Brain Structure using Electron Microscopy ABSTRACT: A central problem in neuroscience is reconstructing neuronal circuits on the synapse level. Due to a wide range of scales in brain architecture such reconstruction ...
1210.0595
Amir Hosein Asiaee
Amir H. Asiaee, Prashant Doshi, Todd Minning, Satya Sahoo, Priti Parikh, Amit Sheth, Rick L. Tarleton
From Questions to Effective Answers: On the Utility of Knowledge-Driven Querying Systems for Life Sciences Data
null
null
null
null
cs.IR cs.DB
http://creativecommons.org/licenses/by-nc-sa/3.0/
We compare two distinct approaches for querying data in the context of the life sciences. The first approach utilizes conventional databases to store the data and intuitive form-based interfaces to facilitate easy querying of the data. These interfaces could be seen as implementing a set of "pre-canned" queries commo...
[ { "version": "v1", "created": "Mon, 1 Oct 2012 22:10:30 GMT" } ]
2012-10-03T00:00:00
[ [ "Asiaee", "Amir H.", "" ], [ "Doshi", "Prashant", "" ], [ "Minning", "Todd", "" ], [ "Sahoo", "Satya", "" ], [ "Parikh", "Priti", "" ], [ "Sheth", "Amit", "" ], [ "Tarleton", "Rick L.", "" ] ]
TITLE: From Questions to Effective Answers: On the Utility of Knowledge-Driven Querying Systems for Life Sciences Data ABSTRACT: We compare two distinct approaches for querying data in the context of the life sciences. The first approach utilizes conventional databases to store the data and intuitive form-based i...
1210.0758
Daniele Cerra
Daniele Cerra and Mihai Datcu
A fast compression-based similarity measure with applications to content-based image retrieval
Pre-print
Journal of Visual Communication and Image Representation, vol. 23, no. 2, pp. 293-302, 2012
10.1016/j.jvcir.2011.10.009
null
stat.ML cs.IR cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Compression-based similarity measures are effectively employed in applications on diverse data types with a basically parameter-free approach. Nevertheless, there are problems in applying these techniques to medium-to-large datasets which have been seldom addressed. This paper proposes a similarity measure based on c...
[ { "version": "v1", "created": "Tue, 2 Oct 2012 13:04:49 GMT" } ]
2012-10-03T00:00:00
[ [ "Cerra", "Daniele", "" ], [ "Datcu", "Mihai", "" ] ]
TITLE: A fast compression-based similarity measure with applications to content-based image retrieval ABSTRACT: Compression-based similarity measures are effectively employed in applications on diverse data types with a basically parameter-free approach. Nevertheless, there are problems in applying these techniqu...
1210.0866
Aaron Adcock
Aaron Adcock and Daniel Rubin and Gunnar Carlsson
Classification of Hepatic Lesions using the Matching Metric
null
null
null
null
cs.CV cs.CG math.AT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present a methodology of classifying hepatic (liver) lesions using multidimensional persistent homology, the matching metric (also called the bottleneck distance), and a support vector machine. We present our classification results on a dataset of 132 lesions that have been outlined and annotated by ...
[ { "version": "v1", "created": "Tue, 2 Oct 2012 18:08:54 GMT" } ]
2012-10-03T00:00:00
[ [ "Adcock", "Aaron", "" ], [ "Rubin", "Daniel", "" ], [ "Carlsson", "Gunnar", "" ] ]
TITLE: Classification of Hepatic Lesions using the Matching Metric ABSTRACT: In this paper we present a methodology of classifying hepatic (liver) lesions using multidimensional persistent homology, the matching metric (also called the bottleneck distance), and a support vector machine. We present our classificatio...
1207.3598
Fabian Pedregosa
Fabian Pedregosa (INRIA Paris - Rocquencourt, INRIA Saclay - Ile de France), Alexandre Gramfort (INRIA Saclay - Ile de France, LNAO), Ga\"el Varoquaux (INRIA Saclay - Ile de France, LNAO), Elodie Cauvet (NEUROSPIN), Christophe Pallier (NEUROSPIN), Bertrand Thirion (INRIA Saclay - Ile de France)
Learning to rank from medical imaging data
null
MLMI 2012 - 3rd International Workshop on Machine Learning in Medical Imaging (2012)
null
null
cs.LG cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Medical images can be used to predict a clinical score coding for the severity of a disease, a pain level or the complexity of a cognitive task. In all these cases, the predicted variable has a natural order. While a standard classifier discards this information, we would like to take it into account in order to impr...
[ { "version": "v1", "created": "Mon, 16 Jul 2012 08:22:36 GMT" }, { "version": "v2", "created": "Sun, 30 Sep 2012 17:04:22 GMT" } ]
2012-10-02T00:00:00
[ [ "Pedregosa", "Fabian", "", "INRIA Paris - Rocquencourt, INRIA Saclay - Ile de\n France" ], [ "Gramfort", "Alexandre", "", "INRIA Saclay - Ile de France, LNAO" ], [ "Varoquaux", "Gaël", "", "INRIA Saclay - Ile de France, LNAO" ], [ "Cauvet", "Elo...
TITLE: Learning to rank from medical imaging data ABSTRACT: Medical images can be used to predict a clinical score coding for the severity of a disease, a pain level or the complexity of a cognitive task. In all these cases, the predicted variable has a natural order. While a standard classifier discards this infor...
1209.6419
Xiaotong Yuan
Xiao-Tong Yuan and Tong Zhang
Partial Gaussian Graphical Model Estimation
32 pages, 5 figures, 4tables
null
null
null
cs.LG cs.IT math.IT stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper studies the partial estimation of Gaussian graphical models from high-dimensional empirical observations. We derive a convex formulation for this problem using $\ell_1$-regularized maximum-likelihood estimation, which can be solved via a block coordinate descent algorithm. Statistical estimation performanc...
[ { "version": "v1", "created": "Fri, 28 Sep 2012 04:12:14 GMT" } ]
2012-10-01T00:00:00
[ [ "Yuan", "Xiao-Tong", "" ], [ "Zhang", "Tong", "" ] ]
TITLE: Partial Gaussian Graphical Model Estimation ABSTRACT: This paper studies the partial estimation of Gaussian graphical models from high-dimensional empirical observations. We derive a convex formulation for this problem using $\ell_1$-regularized maximum-likelihood estimation, which can be solved via a block ...
1209.6540
Gabor Sarkozy
G\'abor N. S\'ark\"ozy, Fei Song, Endre Szemer\'edi, Shubhendu Trivedi
A Practical Regularity Partitioning Algorithm and its Applications in Clustering
null
null
null
null
math.CO cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we introduce a new clustering technique called Regularity Clustering. This new technique is based on the practical variants of the two constructive versions of the Regularity Lemma, a very useful tool in graph theory. The lemma claims that every graph can be partitioned into pseudo-random graphs. While ...
[ { "version": "v1", "created": "Fri, 28 Sep 2012 15:01:22 GMT" } ]
2012-10-01T00:00:00
[ [ "Sárközy", "Gábor N.", "" ], [ "Song", "Fei", "" ], [ "Szemerédi", "Endre", "" ], [ "Trivedi", "Shubhendu", "" ] ]
TITLE: A Practical Regularity Partitioning Algorithm and its Applications in Clustering ABSTRACT: In this paper we introduce a new clustering technique called Regularity Clustering. This new technique is based on the practical variants of the two constructive versions of the Regularity Lemma, a very useful tool i...
1209.6342
Jie Cheng MS
Jie Cheng, Elizaveta Levina, Pei Wang and Ji Zhu
Sparse Ising Models with Covariates
32 pages (including 5 pages of appendix), 3 figures, 2 tables
null
null
null
stat.ML cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There has been a lot of work fitting Ising models to multivariate binary data in order to understand the conditional dependency relationships between the variables. However, additional covariates are frequently recorded together with the binary data, and may influence the dependence relationships. Motivated by such a...
[ { "version": "v1", "created": "Thu, 27 Sep 2012 19:43:44 GMT" } ]
2012-09-28T00:00:00
[ [ "Cheng", "Jie", "" ], [ "Levina", "Elizaveta", "" ], [ "Wang", "Pei", "" ], [ "Zhu", "Ji", "" ] ]
TITLE: Sparse Ising Models with Covariates ABSTRACT: There has been a lot of work fitting Ising models to multivariate binary data in order to understand the conditional dependency relationships between the variables. However, additional covariates are frequently recorded together with the binary data, and may infl...
1209.5765
Kevin Mote
Kevin Mote
Fast Point-Feature Label Placement for Dynamic Visualizations (2007)
null
Information Visualization (2007) 6, 249-260
10.1057/PALGRAVE.IVS.9500163
null
cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper describes a fast approach to automatic point label de-confliction on interactive maps. The general Map Labeling problem is NP-hard and has been the subject of much study for decades. Computerized maps have introduced interactive zooming and panning, which has intensified the problem. Providing dynamic labe...
[ { "version": "v1", "created": "Tue, 25 Sep 2012 20:58:42 GMT" } ]
2012-09-27T00:00:00
[ [ "Mote", "Kevin", "" ] ]
TITLE: Fast Point-Feature Label Placement for Dynamic Visualizations (2007) ABSTRACT: This paper describes a fast approach to automatic point label de-confliction on interactive maps. The general Map Labeling problem is NP-hard and has been the subject of much study for decades. Computerized maps have introduced in...
1209.5766
Kevin Mote
Kevin Mote
Fast Point-Feature Label Placement for Dynamic Visualizations (Thesis)
Master's Thesis, Washington State University
null
10.1057/PALGRAVE.IVS.9500163
null
cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper describes a fast approach to automatic point label de-confliction on interactive maps. The general Map Labeling problem is NP-hard and has been the subject of much study for decades. Computerized maps have introduced interactive zooming and panning, which has intensified the problem. Providing dynamic labe...
[ { "version": "v1", "created": "Tue, 25 Sep 2012 20:59:51 GMT" } ]
2012-09-27T00:00:00
[ [ "Mote", "Kevin", "" ] ]
TITLE: Fast Point-Feature Label Placement for Dynamic Visualizations (Thesis) ABSTRACT: This paper describes a fast approach to automatic point label de-confliction on interactive maps. The general Map Labeling problem is NP-hard and has been the subject of much study for decades. Computerized maps have introduced ...
1209.6001
Jonathan Shapiro
Ruefei He and Jonathan Shapiro
Bayesian Mixture Models for Frequent Itemset Discovery
null
null
null
null
cs.LG cs.IR stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In binary-transaction data-mining, traditional frequent itemset mining often produces results which are not straightforward to interpret. To overcome this problem, probability models are often used to produce more compact and conclusive results, albeit with some loss of accuracy. Bayesian statistics have been widely ...
[ { "version": "v1", "created": "Wed, 26 Sep 2012 16:41:59 GMT" } ]
2012-09-27T00:00:00
[ [ "He", "Ruefei", "" ], [ "Shapiro", "Jonathan", "" ] ]
TITLE: Bayesian Mixture Models for Frequent Itemset Discovery ABSTRACT: In binary-transaction data-mining, traditional frequent itemset mining often produces results which are not straightforward to interpret. To overcome this problem, probability models are often used to produce more compact and conclusive results...
1005.3063
Diego Amancio Raphael
D.R. Amancio, M. G. V. Nunes, O. N. Oliveira Jr., L. da F. Costa
Good practices for a literature survey are not followed by authors while preparing scientific manuscripts
null
Scientometrics, v. 90, p. 2, (2012)
10.1007/s11192-012-0630-z
null
physics.soc-ph cs.DL
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The number of citations received by authors in scientific journals has become a major parameter to assess individual researchers and the journals themselves through the impact factor. A fair assessment therefore requires that the criteria for selecting references in a given manuscript should be unbiased with respect ...
[ { "version": "v1", "created": "Mon, 17 May 2010 21:45:47 GMT" }, { "version": "v2", "created": "Sun, 23 Sep 2012 00:49:13 GMT" } ]
2012-09-25T00:00:00
[ [ "Amancio", "D. R.", "" ], [ "Nunes", "M. G. V.", "" ], [ "Oliveira", "O. N.", "Jr." ], [ "Costa", "L. da F.", "" ] ]
TITLE: Good practices for a literature survey are not followed by authors while preparing scientific manuscripts ABSTRACT: The number of citations received by authors in scientific journals has become a major parameter to assess individual researchers and the journals themselves through the impact factor. A fair ...
1209.5038
Daniel Gordon
Daniel Gordon, Danny Hendler, Lior Rokach
Fast Randomized Model Generation for Shapelet-Based Time Series Classification
null
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Time series classification is a field which has drawn much attention over the past decade. A new approach for classification of time series uses classification trees based on shapelets. A shapelet is a subsequence extracted from one of the time series in the dataset. A disadvantage of this approach is the time requir...
[ { "version": "v1", "created": "Sun, 23 Sep 2012 07:50:42 GMT" } ]
2012-09-25T00:00:00
[ [ "Gordon", "Daniel", "" ], [ "Hendler", "Danny", "" ], [ "Rokach", "Lior", "" ] ]
TITLE: Fast Randomized Model Generation for Shapelet-Based Time Series Classification ABSTRACT: Time series classification is a field which has drawn much attention over the past decade. A new approach for classification of time series uses classification trees based on shapelets. A shapelet is a subsequence extr...
1209.5335
Arash Einolghozati
Erman Ayday, Arash Einolghozati, Faramarz Fekri
BPRS: Belief Propagation Based Iterative Recommender System
null
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we introduce the first application of the Belief Propagation (BP) algorithm in the design of recommender systems. We formulate the recommendation problem as an inference problem and aim to compute the marginal probability distributions of the variables which represent the ratings to be predicted. Howeve...
[ { "version": "v1", "created": "Mon, 24 Sep 2012 16:59:12 GMT" } ]
2012-09-25T00:00:00
[ [ "Ayday", "Erman", "" ], [ "Einolghozati", "Arash", "" ], [ "Fekri", "Faramarz", "" ] ]
TITLE: BPRS: Belief Propagation Based Iterative Recommender System ABSTRACT: In this paper we introduce the first application of the Belief Propagation (BP) algorithm in the design of recommender systems. We formulate the recommendation problem as an inference problem and aim to compute the marginal probability dis...
1009.1380
Stefano Marchesini
F. R. N. C. Maia, A. MacDowell, S. Marchesini, H. A. Padmore, D. Y. Parkinson, J. Pien, A. Schirotzek, and C. Yang
Compressive Phase Contrast Tomography
5 pages, "Image Reconstruction from Incomplete Data VI" conference 7800, SPIE Optical Engineering + Applications 1-5 August 2010 San Diego, CA United States
Proc. SPIE 7800, 78000F (2010)
10.1117/12.861946
LBNL-3899E
physics.optics math.OC
http://creativecommons.org/licenses/publicdomain/
When x-rays penetrate soft matter, their phase changes more rapidly than their amplitude. In- terference effects visible with high brightness sources creates higher contrast, edge enhanced images. When the object is piecewise smooth (made of big blocks of a few components), such higher con- trast datasets have a spar...
[ { "version": "v1", "created": "Tue, 7 Sep 2010 19:55:40 GMT" } ]
2012-09-24T00:00:00
[ [ "Maia", "F. R. N. C.", "" ], [ "MacDowell", "A.", "" ], [ "Marchesini", "S.", "" ], [ "Padmore", "H. A.", "" ], [ "Parkinson", "D. Y.", "" ], [ "Pien", "J.", "" ], [ "Schirotzek", "A.", "" ], [ "Yan...
TITLE: Compressive Phase Contrast Tomography ABSTRACT: When x-rays penetrate soft matter, their phase changes more rapidly than their amplitude. In- terference effects visible with high brightness sources creates higher contrast, edge enhanced images. When the object is piecewise smooth (made of big blocks of a few...
1201.5338
Xiang Wang
Xiang Wang, Buyue Qian, Ian Davidson
On Constrained Spectral Clustering and Its Applications
Data Mining and Knowledge Discovery, 2012
null
10.1007/s10618-012-0291-9
null
cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Constrained clustering has been well-studied for algorithms such as $K$-means and hierarchical clustering. However, how to satisfy many constraints in these algorithmic settings has been shown to be intractable. One alternative to encode many constraints is to use spectral clustering, which remains a developing area....
[ { "version": "v1", "created": "Wed, 25 Jan 2012 18:36:11 GMT" }, { "version": "v2", "created": "Fri, 21 Sep 2012 06:04:35 GMT" } ]
2012-09-24T00:00:00
[ [ "Wang", "Xiang", "" ], [ "Qian", "Buyue", "" ], [ "Davidson", "Ian", "" ] ]
TITLE: On Constrained Spectral Clustering and Its Applications ABSTRACT: Constrained clustering has been well-studied for algorithms such as $K$-means and hierarchical clustering. However, how to satisfy many constraints in these algorithmic settings has been shown to be intractable. One alternative to encode many ...
1206.5587
Shafqat Shad Mr
Shafqat Ali Shad, Enhong Chen
Spatial Outlier Detection from GSM Mobility Data
null
International Journal of Advanced Research in Computer Science, vol. 3, no. 3, pp. 68-74, 2012
null
null
cs.NI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper has been withdrawn by the authors. With the rigorous growth of cellular network many mobility datasets are available publically, which attracted researchers to study human mobility fall under spatio-temporal phenomenon. Mobility profile building is main task in spatio-temporal trend analysis which can be e...
[ { "version": "v1", "created": "Mon, 25 Jun 2012 06:47:46 GMT" }, { "version": "v2", "created": "Mon, 13 Aug 2012 18:33:59 GMT" }, { "version": "v3", "created": "Fri, 21 Sep 2012 02:21:33 GMT" } ]
2012-09-24T00:00:00
[ [ "Shad", "Shafqat Ali", "" ], [ "Chen", "Enhong", "" ] ]
TITLE: Spatial Outlier Detection from GSM Mobility Data ABSTRACT: This paper has been withdrawn by the authors. With the rigorous growth of cellular network many mobility datasets are available publically, which attracted researchers to study human mobility fall under spatio-temporal phenomenon. Mobility profile bu...
1209.0835
Neil Zhenqiang Gong
Neil Zhenqiang Gong, Wenchang Xu, Ling Huang, Prateek Mittal, Emil Stefanov, Vyas Sekar, Dawn Song
Evolution of Social-Attribute Networks: Measurements, Modeling, and Implications using Google+
14 pages, 19 figures. will appear in IMC'12
null
null
null
cs.SI cs.CY physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Understanding social network structure and evolution has important implications for many aspects of network and system design including provisioning, bootstrapping trust and reputation systems via social networks, and defenses against Sybil attacks. Several recent results suggest that augmenting the social network st...
[ { "version": "v1", "created": "Wed, 5 Sep 2012 01:01:47 GMT" }, { "version": "v2", "created": "Sat, 8 Sep 2012 04:12:28 GMT" }, { "version": "v3", "created": "Tue, 11 Sep 2012 17:17:36 GMT" }, { "version": "v4", "created": "Wed, 19 Sep 2012 02:24:50 GMT" } ]
2012-09-20T00:00:00
[ [ "Gong", "Neil Zhenqiang", "" ], [ "Xu", "Wenchang", "" ], [ "Huang", "Ling", "" ], [ "Mittal", "Prateek", "" ], [ "Stefanov", "Emil", "" ], [ "Sekar", "Vyas", "" ], [ "Song", "Dawn", "" ] ]
TITLE: Evolution of Social-Attribute Networks: Measurements, Modeling, and Implications using Google+ ABSTRACT: Understanding social network structure and evolution has important implications for many aspects of network and system design including provisioning, bootstrapping trust and reputation systems via socia...
1209.2493
Subhabrata Mukherjee
Subhabrata Mukherjee, Pushpak Bhattacharyya
WikiSent : Weakly Supervised Sentiment Analysis Through Extractive Summarization With Wikipedia
The paper is available at http://subhabrata-mukherjee.webs.com/publications.htm
Lecture Notes in Computer Science Volume 7523, 2012, pp 774-793
10.1007/978-3-642-33460-3_55
null
cs.IR cs.CL
http://creativecommons.org/licenses/by/3.0/
This paper describes a weakly supervised system for sentiment analysis in the movie review domain. The objective is to classify a movie review into a polarity class, positive or negative, based on those sentences bearing opinion on the movie alone. The irrelevant text, not directly related to the reviewer opinion on ...
[ { "version": "v1", "created": "Wed, 12 Sep 2012 04:33:08 GMT" }, { "version": "v2", "created": "Tue, 18 Sep 2012 14:44:11 GMT" } ]
2012-09-19T00:00:00
[ [ "Mukherjee", "Subhabrata", "" ], [ "Bhattacharyya", "Pushpak", "" ] ]
TITLE: WikiSent : Weakly Supervised Sentiment Analysis Through Extractive Summarization With Wikipedia ABSTRACT: This paper describes a weakly supervised system for sentiment analysis in the movie review domain. The objective is to classify a movie review into a polarity class, positive or negative, based on thos...
1209.2495
Subhabrata Mukherjee
Subhabrata Mukherjee, Akshat Malu, A.R. Balamurali, Pushpak Bhattacharyya
TwiSent: A Multistage System for Analyzing Sentiment in Twitter
The paper is available at http://subhabrata-mukherjee.webs.com/publications.htm
In Proceedings of The 21st ACM Conference on Information and Knowledge Management (CIKM), 2012 as a poster
null
null
cs.IR cs.CL
http://creativecommons.org/licenses/by/3.0/
In this paper, we present TwiSent, a sentiment analysis system for Twitter. Based on the topic searched, TwiSent collects tweets pertaining to it and categorizes them into the different polarity classes positive, negative and objective. However, analyzing micro-blog posts have many inherent challenges compared to the...
[ { "version": "v1", "created": "Wed, 12 Sep 2012 04:39:37 GMT" }, { "version": "v2", "created": "Tue, 18 Sep 2012 14:43:49 GMT" } ]
2012-09-19T00:00:00
[ [ "Mukherjee", "Subhabrata", "" ], [ "Malu", "Akshat", "" ], [ "Balamurali", "A. R.", "" ], [ "Bhattacharyya", "Pushpak", "" ] ]
TITLE: TwiSent: A Multistage System for Analyzing Sentiment in Twitter ABSTRACT: In this paper, we present TwiSent, a sentiment analysis system for Twitter. Based on the topic searched, TwiSent collects tweets pertaining to it and categorizes them into the different polarity classes positive, negative and objective...
1209.3873
Erwin Lalik
Erwin Lalik
Chaos in oscillatory heat evolution accompanying the sorption of hydrogen and deuterium in palladium
17 pages, 5 figures
null
null
null
physics.chem-ph nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Aperiodic oscillations in the sorption of H2 or D2 in metallic Pd powder have been observed, and a novel method to confirm their deterministic rather than random character has been devised. A theorem relating the square of a function, with the derivative and integral with variable upper limit of the same function has...
[ { "version": "v1", "created": "Tue, 18 Sep 2012 08:51:11 GMT" } ]
2012-09-19T00:00:00
[ [ "Lalik", "Erwin", "" ] ]
TITLE: Chaos in oscillatory heat evolution accompanying the sorption of hydrogen and deuterium in palladium ABSTRACT: Aperiodic oscillations in the sorption of H2 or D2 in metallic Pd powder have been observed, and a novel method to confirm their deterministic rather than random character has been devised. A theo...
1209.4056
Kashyap Dixit
Kashyap Dixit and Madhav Jha and Abhradeep Thakurta
Testing Lipschitz Property over Product Distribution and its Applications to Statistical Data Privacy
17 pages
null
null
null
cs.CR
http://creativecommons.org/licenses/by/3.0/
In this work, we present a connection between Lipschitz property testing and a relaxed notion of differential privacy, where we assume that the datasets are being sampled from a domain according to some distribution defined on it. Specifically, we show that testing whether an algorithm is private can be reduced to te...
[ { "version": "v1", "created": "Tue, 18 Sep 2012 18:51:17 GMT" } ]
2012-09-19T00:00:00
[ [ "Dixit", "Kashyap", "" ], [ "Jha", "Madhav", "" ], [ "Thakurta", "Abhradeep", "" ] ]
TITLE: Testing Lipschitz Property over Product Distribution and its Applications to Statistical Data Privacy ABSTRACT: In this work, we present a connection between Lipschitz property testing and a relaxed notion of differential privacy, where we assume that the datasets are being sampled from a domain according ...
1209.3286
Nikolay Glazyrin
Nikolay Glazyrin
Music Recommendation System for Million Song Dataset Challenge
4 pages
null
null
null
cs.IR cs.SI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper a system that took 8th place in Million Song Dataset challenge is described. Given full listening history for 1 million of users and half of listening history for 110000 users participatints should predict the missing half. The system proposed here uses memory-based collaborative filtering approach and ...
[ { "version": "v1", "created": "Fri, 14 Sep 2012 18:59:03 GMT" }, { "version": "v2", "created": "Mon, 17 Sep 2012 18:53:14 GMT" } ]
2012-09-18T00:00:00
[ [ "Glazyrin", "Nikolay", "" ] ]
TITLE: Music Recommendation System for Million Song Dataset Challenge ABSTRACT: In this paper a system that took 8th place in Million Song Dataset challenge is described. Given full listening history for 1 million of users and half of listening history for 110000 users participatints should predict the missing half...
1209.3332
George Teodoro
George Teodoro, Tony Pan, Tahsin M. Kurc, Jun Kong, Lee A. D. Cooper, Joel H. Saltz
High-throughput Execution of Hierarchical Analysis Pipelines on Hybrid Cluster Platforms
12 pages, 14 figures
null
null
null
cs.DC cs.SY
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose, implement, and experimentally evaluate a runtime middleware to support high-throughput execution on hybrid cluster machines of large-scale analysis applications. A hybrid cluster machine consists of computation nodes which have multiple CPUs and general purpose graphics processing units (GPUs). Our work t...
[ { "version": "v1", "created": "Fri, 14 Sep 2012 21:56:51 GMT" } ]
2012-09-18T00:00:00
[ [ "Teodoro", "George", "" ], [ "Pan", "Tony", "" ], [ "Kurc", "Tahsin M.", "" ], [ "Kong", "Jun", "" ], [ "Cooper", "Lee A. D.", "" ], [ "Saltz", "Joel H.", "" ] ]
TITLE: High-throughput Execution of Hierarchical Analysis Pipelines on Hybrid Cluster Platforms ABSTRACT: We propose, implement, and experimentally evaluate a runtime middleware to support high-throughput execution on hybrid cluster machines of large-scale analysis applications. A hybrid cluster machine consists ...
1209.3433
Salah A. Aly
Hossam M. Zawbaa, Salah A. Aly, Adnan A. Gutub
A Hajj And Umrah Location Classification System For Video Crowded Scenes
9 pages, 10 figures, 2 tables, 3 algirthms
null
null
null
cs.CV cs.CY cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, a new automatic system for classifying ritual locations in diverse Hajj and Umrah video scenes is investigated. This challenging subject has mostly been ignored in the past due to several problems one of which is the lack of realistic annotated video datasets. HUER Dataset is defined to model six diffe...
[ { "version": "v1", "created": "Sat, 15 Sep 2012 20:57:51 GMT" } ]
2012-09-18T00:00:00
[ [ "Zawbaa", "Hossam M.", "" ], [ "Aly", "Salah A.", "" ], [ "Gutub", "Adnan A.", "" ] ]
TITLE: A Hajj And Umrah Location Classification System For Video Crowded Scenes ABSTRACT: In this paper, a new automatic system for classifying ritual locations in diverse Hajj and Umrah video scenes is investigated. This challenging subject has mostly been ignored in the past due to several problems one of which i...
1209.3694
Yifei Ma
Yifei Ma, Roman Garnett, Jeff Schneider
Submodularity in Batch Active Learning and Survey Problems on Gaussian Random Fields
null
null
null
null
cs.LG cs.AI cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many real-world datasets can be represented in the form of a graph whose edge weights designate similarities between instances. A discrete Gaussian random field (GRF) model is a finite-dimensional Gaussian process (GP) whose prior covariance is the inverse of a graph Laplacian. Minimizing the trace of the predictive ...
[ { "version": "v1", "created": "Mon, 17 Sep 2012 15:43:11 GMT" } ]
2012-09-18T00:00:00
[ [ "Ma", "Yifei", "" ], [ "Garnett", "Roman", "" ], [ "Schneider", "Jeff", "" ] ]
TITLE: Submodularity in Batch Active Learning and Survey Problems on Gaussian Random Fields ABSTRACT: Many real-world datasets can be represented in the form of a graph whose edge weights designate similarities between instances. A discrete Gaussian random field (GRF) model is a finite-dimensional Gaussian proces...
1209.3026
Hany SalahEldeen
Hany M. SalahEldeen and Michael L. Nelson
Losing My Revolution: How Many Resources Shared on Social Media Have Been Lost?
12 pages, Theory and Practice of Digital Libraries (TPDL) 2012
null
null
null
cs.DL cs.IR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Social media content has grown exponentially in the recent years and the role of social media has evolved from just narrating life events to actually shaping them. In this paper we explore how many resources shared in social media are still available on the live web or in public web archives. By analyzing six differe...
[ { "version": "v1", "created": "Thu, 13 Sep 2012 20:08:07 GMT" } ]
2012-09-17T00:00:00
[ [ "SalahEldeen", "Hany M.", "" ], [ "Nelson", "Michael L.", "" ] ]
TITLE: Losing My Revolution: How Many Resources Shared on Social Media Have Been Lost? ABSTRACT: Social media content has grown exponentially in the recent years and the role of social media has evolved from just narrating life events to actually shaping them. In this paper we explore how many resources shared in...
1209.3089
Lei Wu Dr.
Mehdi Adda, Lei Wu, Sharon White, Yi Feng
Pattern Detection with Rare Item-set Mining
17 pages, 5 figures, International Journal on Soft Computing, Artificial Intelligence and Applications (IJSCAI), Vol.1, No.1, August 2012
null
null
null
cs.SE cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of new and interesting patterns in large datasets, known as data mining, draws more and more interest as the quantities of available data are exploding. Data mining techniques may be applied to different domains and fields such as computer science, health sector, insurances, homeland security, banking a...
[ { "version": "v1", "created": "Fri, 14 Sep 2012 04:25:56 GMT" } ]
2012-09-17T00:00:00
[ [ "Adda", "Mehdi", "" ], [ "Wu", "Lei", "" ], [ "White", "Sharon", "" ], [ "Feng", "Yi", "" ] ]
TITLE: Pattern Detection with Rare Item-set Mining ABSTRACT: The discovery of new and interesting patterns in large datasets, known as data mining, draws more and more interest as the quantities of available data are exploding. Data mining techniques may be applied to different domains and fields such as computer s...
1209.2868
Georg Groh
Georg Groh and Florian Straub and Benjamin Koster
Spatio-Temporal Small Worlds for Decentralized Information Retrieval in Social Networking
null
null
null
null
cs.SI cs.IR physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss foundations and options for alternative, agent-based information retrieval (IR) approaches in Social Networking, especially Decentralized and Mobile Social Networking scenarios. In addition to usual semantic contexts, these approaches make use of long-term social and spatio-temporal contexts in order to sa...
[ { "version": "v1", "created": "Thu, 13 Sep 2012 12:11:10 GMT" } ]
2012-09-14T00:00:00
[ [ "Groh", "Georg", "" ], [ "Straub", "Florian", "" ], [ "Koster", "Benjamin", "" ] ]
TITLE: Spatio-Temporal Small Worlds for Decentralized Information Retrieval in Social Networking ABSTRACT: We discuss foundations and options for alternative, agent-based information retrieval (IR) approaches in Social Networking, especially Decentralized and Mobile Social Networking scenarios. In addition to usu...
1209.2553
Malathi Subramanian
S. Malathi and S. Sridhar
Optimization of fuzzy analogy in software cost estimation using linguistic variables
14 pages, 8 figures; Journal of Systems and Software, 2011. arXiv admin note: text overlap with arXiv:1112.3877 by other authors
null
null
null
cs.SE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most important objectives of software engineering community has been the increase of useful models that beneficially explain the development of life cycle and precisely calculate the effort of software cost estimation. In analogy concept, there is deficiency in handling the datasets containing categorical ...
[ { "version": "v1", "created": "Wed, 12 Sep 2012 10:35:01 GMT" } ]
2012-09-13T00:00:00
[ [ "Malathi", "S.", "" ], [ "Sridhar", "S.", "" ] ]
TITLE: Optimization of fuzzy analogy in software cost estimation using linguistic variables ABSTRACT: One of the most important objectives of software engineering community has been the increase of useful models that beneficially explain the development of life cycle and precisely calculate the effort of software...
1209.1322
Wahbeh Qardaji
Wahbeh Qardaji, Weining Yang, Ninghui Li
Differentially Private Grids for Geospatial Data
null
null
null
null
cs.CR cs.DB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we tackle the problem of constructing a differentially private synopsis for two-dimensional datasets such as geospatial datasets. The current state-of-the-art methods work by performing recursive binary partitioning of the data domains, and constructing a hierarchy of partitions. We show that the key c...
[ { "version": "v1", "created": "Thu, 6 Sep 2012 15:47:45 GMT" } ]
2012-09-07T00:00:00
[ [ "Qardaji", "Wahbeh", "" ], [ "Yang", "Weining", "" ], [ "Li", "Ninghui", "" ] ]
TITLE: Differentially Private Grids for Geospatial Data ABSTRACT: In this paper, we tackle the problem of constructing a differentially private synopsis for two-dimensional datasets such as geospatial datasets. The current state-of-the-art methods work by performing recursive binary partitioning of the data domains...
1209.1323
Sheng Yu
Sheng Yu and Subhash Kak
An Empirical Study of How Users Adopt Famous Entities
7 pages, 10 figures
null
null
null
cs.SI physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Users of social networking services construct their personal social networks by creating asymmetric and symmetric social links. Users usually follow friends and selected famous entities that include celebrities and news agencies. In this paper, we investigate how users follow famous entities. We statically and dynami...
[ { "version": "v1", "created": "Thu, 6 Sep 2012 15:47:55 GMT" } ]
2012-09-07T00:00:00
[ [ "Yu", "Sheng", "" ], [ "Kak", "Subhash", "" ] ]
TITLE: An Empirical Study of How Users Adopt Famous Entities ABSTRACT: Users of social networking services construct their personal social networks by creating asymmetric and symmetric social links. Users usually follow friends and selected famous entities that include celebrities and news agencies. In this paper, ...
1209.0913
Jun Wang
Jun Wang and Alexandros Kalousis
Structuring Relevant Feature Sets with Multiple Model Learning
null
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Feature selection is one of the most prominent learning tasks, especially in high-dimensional datasets in which the goal is to understand the mechanisms that underly the learning dataset. However most of them typically deliver just a flat set of relevant features and provide no further information on what kind of str...
[ { "version": "v1", "created": "Wed, 5 Sep 2012 10:08:02 GMT" } ]
2012-09-06T00:00:00
[ [ "Wang", "Jun", "" ], [ "Kalousis", "Alexandros", "" ] ]
TITLE: Structuring Relevant Feature Sets with Multiple Model Learning ABSTRACT: Feature selection is one of the most prominent learning tasks, especially in high-dimensional datasets in which the goal is to understand the mechanisms that underly the learning dataset. However most of them typically deliver just a fl...
1205.5407
Deniz Yuret
Deniz Yuret
FASTSUBS: An Efficient and Exact Procedure for Finding the Most Likely Lexical Substitutes Based on an N-gram Language Model
4 pages, 1 figure, to appear in IEEE Signal Processing Letters
null
10.1109/LSP.2012.2215587
null
cs.CL
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lexical substitutes have found use in areas such as paraphrasing, text simplification, machine translation, word sense disambiguation, and part of speech induction. However the computational complexity of accurately identifying the most likely substitutes for a word has made large scale experiments difficult. In this...
[ { "version": "v1", "created": "Thu, 24 May 2012 11:53:41 GMT" }, { "version": "v2", "created": "Sat, 1 Sep 2012 07:54:47 GMT" } ]
2012-09-04T00:00:00
[ [ "Yuret", "Deniz", "" ] ]
TITLE: FASTSUBS: An Efficient and Exact Procedure for Finding the Most Likely Lexical Substitutes Based on an N-gram Language Model ABSTRACT: Lexical substitutes have found use in areas such as paraphrasing, text simplification, machine translation, word sense disambiguation, and part of speech induction. However...
1208.5801
Nivan Ferreira Jr
Nivan Ferreira, James T. Klosowski, Carlos Scheidegger, Claudio Silva
Vector Field k-Means: Clustering Trajectories by Fitting Multiple Vector Fields
30 pages, 15 figures
null
null
null
cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Scientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. There is a pressing need for scalable and efficient techniques for analyzing this data and discovering the underlying patterns. In this paper, we introduce a novel technique whic...
[ { "version": "v1", "created": "Tue, 28 Aug 2012 21:51:36 GMT" }, { "version": "v2", "created": "Fri, 31 Aug 2012 18:17:40 GMT" } ]
2012-09-03T00:00:00
[ [ "Ferreira", "Nivan", "" ], [ "Klosowski", "James T.", "" ], [ "Scheidegger", "Carlos", "" ], [ "Silva", "Claudio", "" ] ]
TITLE: Vector Field k-Means: Clustering Trajectories by Fitting Multiple Vector Fields ABSTRACT: Scientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. There is a pressing need for scalable and efficient techniques for analyzing ...
1201.4481
Vadim Zotev
Vadim Zotev, Han Yuan, Raquel Phillips, Jerzy Bodurka
EEG-assisted retrospective motion correction for fMRI: E-REMCOR
19 pages, 10 figures, to appear in NeuroImage
NeuroImage 63 (2012) 698-712
10.1016/j.neuroimage.2012.07.031
null
physics.med-ph physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a method for retrospective motion correction of fMRI data in simultaneous EEG-fMRI that employs the EEG array as a sensitive motion detector. EEG motion artifacts are used to generate motion regressors describing rotational head movements with millisecond temporal resolution. These regressors are utilized ...
[ { "version": "v1", "created": "Sat, 21 Jan 2012 15:19:12 GMT" }, { "version": "v2", "created": "Mon, 16 Jul 2012 19:05:35 GMT" } ]
2012-08-31T00:00:00
[ [ "Zotev", "Vadim", "" ], [ "Yuan", "Han", "" ], [ "Phillips", "Raquel", "" ], [ "Bodurka", "Jerzy", "" ] ]
TITLE: EEG-assisted retrospective motion correction for fMRI: E-REMCOR ABSTRACT: We propose a method for retrospective motion correction of fMRI data in simultaneous EEG-fMRI that employs the EEG array as a sensitive motion detector. EEG motion artifacts are used to generate motion regressors describing rotational ...
1208.6137
Deepak Kumar
Deepak Kumar, M N Anil Prasad and A G Ramakrishnan
Benchmarking recognition results on word image datasets
16 pages, 4 figures
null
null
null
cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have benchmarked the maximum obtainable recognition accuracy on various word image datasets using manual segmentation and a currently available commercial OCR. We have developed a Matlab program, with graphical user interface, for semi-automated pixel level segmentation of word images. We discuss the advantages of...
[ { "version": "v1", "created": "Thu, 30 Aug 2012 11:24:44 GMT" } ]
2012-08-31T00:00:00
[ [ "Kumar", "Deepak", "" ], [ "Prasad", "M N Anil", "" ], [ "Ramakrishnan", "A G", "" ] ]
TITLE: Benchmarking recognition results on word image datasets ABSTRACT: We have benchmarked the maximum obtainable recognition accuracy on various word image datasets using manual segmentation and a currently available commercial OCR. We have developed a Matlab program, with graphical user interface, for semi-auto...