id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
0709.4506 | Optimum Diversity-Multiplexing Tradeoff in the Multiple Relays Network | [
"cs.IT",
"math.IT"
] | In this paper, a multiple-relay network in considered, in which $K$ single-antenna relays assist a single-antenna transmitter to communicate with a single-antenna receiver in a half-duplex mode. A new Amplify and Forward (AF) scheme is proposed for this network and is shown to achieve the optimum diversity-multiplexing... | {
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0709.4513 | Scheduling and Pre-Conditioning in Multi-User MIMO TDD Systems | [
"cs.IT",
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] | The downlink transmission in multi-user multiple-input multiple-output (MIMO) systems has been extensively studied from both communication-theoretic and information-theoretic perspectives. Most of these papers assume perfect/imperfect channel knowledge. In general, the problem of channel training and estimation is stud... | {
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0709.4655 | Mining for trees in a graph is NP-complete | [
"cs.DB",
"cs.AI"
] | Mining for trees in a graph is shown to be NP-complete. | {
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0709.4669 | The Extended Edit Distance Metric | [
"cs.IR"
] | Similarity search is an important problem in information retrieval. This similarity is based on a distance. Symbolic representation of time series has attracted many researchers recently, since it reduces the dimensionality of these high dimensional data objects. We propose a new distance metric that is applied to symb... | {
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0709.4671 | Secrecy Capacity Region of a Multi-Antenna Gaussian Broadcast Channel
with Confidential Messages | [
"cs.IT",
"math.IT"
] | In wireless data networks, communication is particularly susceptible to eavesdropping due to its broadcast nature. Security and privacy systems have become critical for wireless providers and enterprise networks. This paper considers the problem of secret communication over the Gaussian broadcast channel, where a multi... | {
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0710.0009 | Bio-linguistic transition and Baldwin effect in an evolutionary
naming-game model | [
"cs.CL",
"cond-mat.stat-mech",
"cs.AI",
"physics.soc-ph",
"q-bio.PE"
] | We examine an evolutionary naming-game model where communicating agents are equipped with an evolutionarily selected learning ability. Such a coupling of biological and linguistic ingredients results in an abrupt transition: upon a small change of a model control parameter a poorly communicating group of linguistically... | {
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0710.0013 | Lagrangian Relaxation for MAP Estimation in Graphical Models | [
"cs.AI"
] | We develop a general framework for MAP estimation in discrete and Gaussian graphical models using Lagrangian relaxation techniques. The key idea is to reformulate an intractable estimation problem as one defined on a more tractable graph, but subject to additional constraints. Relaxing these constraints gives a tractab... | {
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0710.0043 | Graph rigidity, Cyclic Belief Propagation and Point Pattern Matching | [
"cs.CV"
] | A recent paper \cite{CaeCaeSchBar06} proposed a provably optimal, polynomial time method for performing near-isometric point pattern matching by means of exact probabilistic inference in a chordal graphical model. Their fundamental result is that the chordal graph in question is shown to be globally rigid, implying tha... | {
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0710.0105 | Zipf's Law and Avoidance of Excessive Synonymy | [
"cs.CL",
"physics.soc-ph"
] | Zipf's law states that if words of language are ranked in the order of decreasing frequency in texts, the frequency of a word is inversely proportional to its rank. It is very robust as an experimental observation, but to date it escaped satisfactory theoretical explanation. We suggest that Zipf's law may arise from th... | {
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0710.0116 | Distributed MIMO receiver - Achievable rates and upper bounds | [
"cs.IT",
"math.IT"
] | In this paper we investigate the achievable rate of a system that includes a nomadic transmitter with several antennas, which is received by multiple agents, exhibiting independent channel gains and additive circular-symmetric complex Gaussian noise. In the nomadic regime, we assume that the agents do not have any deco... | {
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0710.0142 | LDPC codes in the McEliece cryptosystem: attacks and countermeasures | [
"cs.IT",
"math.IT"
] | The McEliece cryptosystem is a public-key cryptosystem based on coding theory that has successfully resisted cryptanalysis for thirty years. The original version, based on Goppa codes, is able to guarantee a high level of security, and is faster than competing solutions, like RSA. Despite this, it has been rarely consi... | {
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0710.0169 | Evaluation experiments on related terms search in Wikipedia: Information
Content and Adapted HITS (In Russian) | [
"cs.IR",
"cs.CL"
] | The classification of metrics and algorithms search for related terms via WordNet, Roget's Thesaurus, and Wikipedia was extended to include adapted HITS algorithm. Evaluation experiments on Information Content and adapted HITS algorithm are described. The test collection of Russian word pairs with human-assigned simila... | {
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0710.0192 | Binary quantization using Belief Propagation with decimation over factor
graphs of LDGM codes | [
"cs.IT",
"math.IT"
] | We propose a new algorithm for binary quantization based on the Belief Propagation algorithm with decimation over factor graphs of Low Density Generator Matrix (LDGM) codes. This algorithm, which we call Bias Propagation (BiP), can be considered as a special case of the Survey Propagation algorithm proposed for binary ... | {
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0710.0198 | Z4-Linear Perfect Codes | [
"cs.IT",
"math.IT"
] | For every $n = 2^k > 8$ there exist exactly $[(k+1)/2]$ mutually nonequivalent $Z_4$-linear extended perfect codes with distance 4. All these codes have different ranks. | {
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0710.0199 | Z4-linear Hadamard and extended perfect codes | [
"cs.IT",
"math.IT"
] | If $N=2^k > 8$ then there exist exactly $[(k-1)/2]$ pairwise nonequivalent $Z_4$-linear Hadamard $(N,2N,N/2)$-codes and $[(k+1)/2]$ pairwise nonequivalent $Z_4$-linear extended perfect $(N,2^N/2N,4)$-codes. A recurrent construction of $Z_4$-linear Hadamard codes is given. | {
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0710.0213 | Optimising the topology of complex neural networks | [
"cs.NE",
"cs.AI"
] | In this paper, we study instances of complex neural networks, i.e. neural netwo rks with complex topologies. We use Self-Organizing Map neural networks whose n eighbourhood relationships are defined by a complex network, to classify handwr itten digits. We show that topology has a small impact on performance and robus ... | {
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0710.0225 | On the role of autocorrelations in texts | [
"cs.CL"
] | The task of finding a criterion allowing to distinguish a text from an arbitrary set of words is rather relevant in itself, for instance, in the aspect of development of means for internet-content indexing or separating signals and noise in communication channels. The Zipf law is currently considered to be the most rel... | {
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0710.0228 | On the fractal nature of mutual relevance sequences in the Internet news
message flows | [
"cs.CL"
] | In the task of information retrieval the term relevance is taken to mean formal conformity of a document given by the retrieval system to user's information query. As a rule, the documents found by the retrieval system should be submitted to the user in a certain order. Therefore, a retrieval perceived as a selection o... | {
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0710.0243 | High-Order Nonparametric Belief-Propagation for Fast Image Inpainting | [
"cs.CV"
] | In this paper, we use belief-propagation techniques to develop fast algorithms for image inpainting. Unlike traditional gradient-based approaches, which may require many iterations to converge, our techniques achieve competitive results after only a few iterations. On the other hand, while belief-propagation techniques... | {
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0710.0244 | Theoretical Engineering and Satellite Comlink of a PTVD-SHAM System | [
"cs.CE",
"cs.AR"
] | This paper focuses on super helical memory system's design, 'Engineering, Architectural and Satellite Communications' as a theoretical approach of an invention-model to 'store time-data'. The current release entails three concepts: 1- an in-depth theoretical physics engineering of the chip including its, 2- architectur... | {
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0710.0262 | Incomplete Lineage Sorting: Consistent Phylogeny Estimation From
Multiple Loci | [
"q-bio.PE",
"cs.CE",
"cs.DS",
"math.PR",
"math.ST",
"stat.TH"
] | We introduce a simple algorithm for reconstructing phylogenies from multiple gene trees in the presence of incomplete lineage sorting, that is, when the topology of the gene trees may differ from that of the species tree. We show that our technique is statistically consistent under standard stochastic assumptions, that... | {
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0710.0291 | On Outage Behavior of Wideband Slow-Fading Channels | [
"cs.IT",
"math.IT"
] | This paper investigates point-to-point information transmission over a wideband slow-fading channel, modeled as an (asymptotically) large number of independent identically distributed parallel channels, with the random channel fading realizations remaining constant over the entire coding block. On the one hand, in the ... | {
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0710.0410 | The Theory of Unified Relativity for a Biovielectroluminescence
Phenomenon via Fly's Visual and Imaging System | [
"cs.CE",
"cs.CV"
] | The elucidation upon fly's neuronal patterns as a link to computer graphics and memory cards I/O's, is investigated for the phenomenon by propounding a unified theory of Einstein's two known relativities. It is conclusive that flies could contribute a certain amount of neuromatrices indicating an imagery function of a ... | {
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0710.0431 | New Counting Codes for Distributed Video Coding | [
"cs.IT",
"math.IT"
] | This paper introduces a new counting code. Its design was motivated by distributed video coding where, for decoding, error correction methods are applied to improve predictions. Those error corrections sometimes fail which results in decoded values worse than the initial prediction. Our code exploits the fact that bit ... | {
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0710.0485 | Prediction with expert advice for the Brier game | [
"cs.LG"
] | We show that the Brier game of prediction is mixable and find the optimal learning rate and substitution function for it. The resulting prediction algorithm is applied to predict results of football and tennis matches. The theoretical performance guarantee turns out to be rather tight on these data sets, especially in ... | {
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0710.0531 | The Problem of Localization in Networks of Randomly Deployed Nodes:
Asymptotic and Finite Analysis, and Thresholds | [
"cs.DM",
"cs.IT",
"cs.NI",
"math.IT"
] | We derive the probability that a randomly chosen NL-node over $S$ gets localized as a function of a variety of parameters. Then, we derive the probability that the whole network of NL-nodes over $S$ gets localized. In connection with the asymptotic thresholds, we show the presence of asymptotic thresholds on the networ... | {
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0710.0556 | A Game Theoretic Approach to Quantum Information | [
"quant-ph",
"cs.GT",
"cs.IT",
"math.IT"
] | This work is an application of game theory to quantum information. In a state estimate, we are given observations distributed according to an unknown distribution $P_{\theta}$ (associated with award $Q$), which Nature chooses at random from the set $\{P_{\theta}: \theta \in \Theta \}$ according to a known prior distrib... | {
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0710.0564 | TP Decoding | [
"cs.IT",
"math.IT"
] | `Tree pruning' (TP) is an algorithm for probabilistic inference on binary Markov random fields. It has been recently derived by Dror Weitz and used to construct the first fully polynomial approximation scheme for counting independent sets up to the `tree uniqueness threshold.' It can be regarded as a clever method for ... | {
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0710.0658 | Detailed Network Measurements Using Sparse Graph Counters: The Theory | [
"cs.NI",
"cs.IT",
"math.IT"
] | Measuring network flow sizes is important for tasks like accounting/billing, network forensics and security. Per-flow accounting is considered hard because it requires that many counters be updated at a very high speed; however, the large fast memories needed for storing the counters are prohibitively expensive. Theref... | {
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0710.0672 | Optimization of supply diversity for the self-assembly of simple objects
in two and three dimensions | [
"cs.NE"
] | The field of algorithmic self-assembly is concerned with the design and analysis of self-assembly systems from a computational perspective, that is, from the perspective of mathematical problems whose study may give insight into the natural processes through which elementary objects self-assemble into more complex ones... | {
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0710.0736 | Colour image segmentation by the vector-valued Allen-Cahn phase-field
model: a multigrid solution | [
"cs.CV",
"cs.NA"
] | We propose a new method for the numerical solution of a PDE-driven model for colour image segmentation and give numerical examples of the results. The method combines the vector-valued Allen-Cahn phase field equation with initial data fitting terms. This method is known to be closely related to the Mumford-Shah problem... | {
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0710.0865 | Secrecy Capacity of the Wiretap Channel with Noisy Feedback | [
"cs.IT",
"cs.CR",
"math.IT"
] | In this work, the role of noisy feedback in enhancing the secrecy capacity of the wiretap channel is investigated. A model is considered in which the feed-forward and feedback signals share the same noisy channel. More specifically, a discrete memoryless modulo-additive channel with a full-duplex destination node is co... | {
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0710.0900 | A New Achievability Scheme for the Relay Channel | [
"cs.IT",
"math.IT"
] | In this paper, we propose a new coding scheme for the general relay channel. This coding scheme is in the form of a block Markov code. The transmitter uses a superposition Markov code. The relay compresses the received signal and maps the compressed version of the received signal into a codeword conditioned on the code... | {
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0710.0903 | Control and Monitoring System for Modular Wireless Robot | [
"cs.RO"
] | We introduce our concept on the modular wireless robot consisting of three main modules : main unit, data acquisition and data processing modules. We have developed a generic prototype with an integrated control and monitoring system to enhance its flexibility, and to enable simple operation through a web-based interfa... | {
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0710.0937 | Multichannel algorithm based on generalized positional numeration system | [
"cs.IT",
"math.IT"
] | This report is devoted to introduction in multichannel algorithm based on generalized numeration notations (GPN). The internal, external and mixed account are entered. The concept of the GPN and its classification as decomposition of an integer on composed of integers is discussed. Realization of multichannel algorithm... | {
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0710.1001 | Connectivity of Random 1-Dimensional Networks | [
"cs.IT",
"cs.DS",
"math.IT",
"stat.AP"
] | An important problem in wireless sensor networks is to find the minimal number of randomly deployed sensors making a network connected with a given probability. In practice sensors are often deployed one by one along a trajectory of a vehicle, so it is natural to assume that arbitrary probability density functions of d... | {
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} |
0710.1149 | Z2Z4-linear codes: generator matrices and duality | [
"cs.IT",
"cs.DM",
"math.CO",
"math.IT"
] | A code ${\cal C}$ is $\Z_2\Z_4$-additive if the set of coordinates can be partitioned into two subsets $X$ and $Y$ such that the punctured code of ${\cal C}$ by deleting the coordinates outside $X$ (respectively, $Y$) is a binary linear code (respectively, a quaternary linear code). In this paper $\Z_2\Z_4$-additive co... | {
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0710.1182 | Low-Density Parity-Check Codes for Nonergodic Block-Fading Channels | [
"cs.IT",
"math.IT"
] | We solve the problem of designing powerful low-density parity-check (LDPC) codes with iterative decoding for the block-fading channel. We first study the case of maximum-likelihood decoding, and show that the design criterion is rather straightforward. Unfortunately, optimal constructions for maximum-likelihood decodin... | {
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0710.1190 | Power Efficient Scheduling under Delay Constraints over Multi-user
Wireless Channels | [
"cs.NI",
"cs.MA"
] | In this paper, we consider the problem of power efficient uplink scheduling in a Time Division Multiple Access (TDMA) system over a fading wireless channel. The objective is to minimize the power expenditure of each user subject to satisfying individual user delay. We make the practical assumption that the system stati... | {
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0710.1203 | Semantic distillation: a method for clustering objects by their
contextual specificity | [
"math.PR",
"cs.DB",
"math.ST",
"q-bio.QM",
"stat.ML",
"stat.TH"
] | Techniques for data-mining, latent semantic analysis, contextual search of databases, etc. have long ago been developed by computer scientists working on information retrieval (IR). Experimental scientists, from all disciplines, having to analyse large collections of raw experimental data (astronomical, physical, biolo... | {
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} |
0710.1254 | A Group Theoretic Model for Information | [
"cs.IT",
"math.IT"
] | In this paper we formalize the notions of information elements and information lattices, first proposed by Shannon. Exploiting this formalization, we identify a comprehensive parallelism between information lattices and subgroup lattices. Qualitatively, we demonstrate isomorphisms between information lattices and subgr... | {
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0710.1275 | On Convergence Properties of Shannon Entropy | [
"cs.IT",
"math.IT"
] | Convergence properties of Shannon Entropy are studied. In the differential setting, it is shown that weak convergence of probability measures, or convergence in distribution, is not enough for convergence of the associated differential entropies. A general result for the desired differential entropy convergence is prov... | {
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0710.1280 | On the Relationship between Mutual Information and Minimum Mean-Square
Errors in Stochastic Dynamical Systems | [
"cs.IT",
"math.IT"
] | We consider a general stochastic input-output dynamical system with output evolving in time as the solution to a functional coefficients, It\^{o}'s stochastic differential equation, excited by an input process. This general class of stochastic systems encompasses not only the classical communication channel models, but... | {
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0710.1325 | The MIMOME Channel | [
"cs.IT",
"math.IT"
] | The MIMOME channel is a Gaussian wiretap channel in which the sender, receiver, and eavesdropper all have multiple antennas. We characterize the secrecy capacity as the saddle-value of a minimax problem. Among other implications, our result establishes that a Gaussian distribution maximizes the secrecy capacity charact... | {
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0710.1336 | Multi-User Diversity vs. Accurate Channel Feedback for MIMO Broadcast
Channels | [
"cs.IT",
"math.IT"
] | A multiple transmit antenna, single receive antenna (per receiver) downlink channel with limited channel feedback is considered. Given a constraint on the total system-wide channel feedback, the following question is considered: is it preferable to get low-rate feedback from a large number of receivers or to receive hi... | {
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0710.1383 | Log-concavity property of the error probability with application to
local bounds for wireless communications | [
"cs.IT",
"math.IT"
] | A clear understanding the behavior of the error probability (EP) as a function of signal-to-noise ratio (SNR) and other system parameters is fundamental for assessing the design of digital wireless communication systems.We propose an analytical framework based on the log-concavity property of the EP which we prove for ... | {
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0710.1385 | Cognitive Medium Access: Exploration, Exploitation and Competition | [
"cs.IT",
"cs.NI",
"math.IT"
] | This paper establishes the equivalence between cognitive medium access and the competitive multi-armed bandit problem. First, the scenario in which a single cognitive user wishes to opportunistically exploit the availability of empty frequency bands in the spectrum with multiple bands is considered. In this scenario, t... | {
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0710.1404 | Performance Comparison of Persistence Frameworks | [
"cs.DB",
"cs.IR"
] | One of the essential and most complex components in the software development process is the database. The complexity increases when the "orientation" of the interacting components differs. A persistence framework moves the program data in its most natural form to and from a permanent data store, the database. Thus a pe... | {
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0710.1418 | Non-Archimedean Ergodic Theory and Pseudorandom Generators | [
"math.DS",
"cs.IT",
"math.IT"
] | The paper develops techniques in order to construct computer programs, pseudorandom number generators (PRNG), that produce uniformly distributed sequences. The paper exploits an approach that treats standard processor instructions (arithmetic and bitwise logical ones) as continuous functions on the space of 2-adic inte... | {
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0710.1462 | Minimization of entropy functionals | [
"math.OC",
"cs.IT",
"math.IT",
"math.PR"
] | Entropy functionals (i.e. convex integral functionals) and extensions of these functionals are minimized on convex sets. This paper is aimed at reducing as much as possible the assumptions on the constraint set. Dual equalities and characterizations of the minimizers are obtained with weak constraint qualifications. | {
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0710.1467 | Weight Distributions of Hamming Codes | [
"cs.IT",
"math.IT",
"math.NT"
] | We derive a recursive formula determing the weight distribution of the [n=(q^m-1)/(q-1), n-m, 3] Hamming code H(m,q), when (m, q-1)=1. Here q is a prime power. The proof is based on Moisio's idea of using Pless power moment identity together with exponential sum techniques. | {
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0710.1469 | Weight Distributions of Hamming Codes (II) | [
"cs.IT",
"math.IT",
"math.NT"
] | In a previous paper, we derived a recursive formula determining the weight distributions of the [n=(q^m-1)/(q-1)] Hamming code H(m,q), when (m,q-1)=1. Here q is a prime power. We note here that the formula actually holds for any positive integer m and any prime power q, without the restriction (m, q-1)=1. | {
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0710.1481 | What's in a Name? | [
"cs.CL",
"cs.AI"
] | This paper describes experiments on identifying the language of a single name in isolation or in a document written in a different language. A new corpus has been compiled and made available, matching names against languages. This corpus is used in a series of experiments measuring the performance of general language m... | {
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0710.1511 | Demographic growth and the distribution of language sizes | [
"physics.data-an",
"cs.CL",
"physics.soc-ph"
] | It is argued that the present log-normal distribution of language sizes is, to a large extent, a consequence of demographic dynamics within the population of speakers of each language. A two-parameter stochastic multiplicative process is proposed as a model for the population dynamics of individual languages, and appli... | {
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} |
0710.1522 | Distributed spatial multiplexing with 1-bit feedback | [
"cs.IT",
"math.IT"
] | We analyze a slow-fading interference network with MN non-cooperating single-antenna sources and M non-cooperating single-antenna destinations. In particular, we assume that the sources are divided into M mutually exclusive groups of N sources each, every group is dedicated to transmit a common message to a unique dest... | {
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0710.1525 | Efficient Optimally Lazy Algorithms for Minimal-Interval Semantics | [
"cs.DS",
"cs.IR"
] | Minimal-interval semantics associates with each query over a document a set of intervals, called witnesses, that are incomparable with respect to inclusion (i.e., they form an antichain): witnesses define the minimal regions of the document satisfying the query. Minimal-interval semantics makes it easy to define and co... | {
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0710.1589 | Fast Reliability-based Algorithm of Finding Minimum-weight Codewords for
LDPC Codes | [
"cs.IT",
"math.IT"
] | Despite the NP hardness of acquiring minimum distance $d_m$ for linear codes theoretically, in this paper we propose one experimental method of finding minimum-weight codewords, the weight of which is equal to $d_m$ for LDPC codes. One existing syndrome decoding method, called serial belief propagation (BP) with ordere... | {
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0710.1595 | Analysis of Fixed Outage Transmission Schemes: A Finer Look at the Full
Multiplexing Point | [
"cs.IT",
"math.IT"
] | This paper studies the performance of transmission schemes that have rate that increases with average SNR while maintaining a fixed outage probability. This is in contrast to the classical Zheng-Tse diversity-multiplexing tradeoff (DMT) that focuses on increasing rate and decreasing outage probability. Three different ... | {
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0710.1624 | Hamiltonian Formulation of Quantum Error Correction and Correlated
Noise: The Effects Of Syndrome Extraction in the Long Time Limit | [
"quant-ph",
"cond-mat.stat-mech",
"cs.IT",
"math.IT"
] | We analyze the long time behavior of a quantum computer running a quantum error correction (QEC) code in the presence of a correlated environment. Starting from a Hamiltonian formulation of realistic noise models, and assuming that QEC is indeed possible, we find formal expressions for the probability of a faulty path ... | {
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} |
0710.1626 | Throughput Scaling in Random Wireless Networks: A Non-Hierarchical
Multipath Routing Strategy | [
"cs.IT",
"math.IT"
] | Franceschetti et al. have recently shown that per-node throughput in an extended, ad hoc wireless network with $\Theta(n)$ randomly distributed nodes and multihop routing can be increased from the $\Omega({1 \over \sqrt{n} \log n})$ scaling demonstrated in the seminal paper of Gupta and Kumar to $\Omega({1 \over \sqrt{... | {
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0710.1870 | Lossless Representation of Graphs using Distributions | [
"math.CO",
"cs.CV"
] | We consider complete graphs with edge weights and/or node weights taking values in some set. In the first part of this paper, we show that a large number of graphs are completely determined, up to isomorphism, by the distribution of their sub-triangles. In the second part, we propose graph representations in terms of o... | {
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0710.1879 | Cyclotomic FFTs with Reduced Additive Complexities Based on a Novel
Common Subexpression Elimination Algorithm | [
"cs.IT",
"cs.CC",
"math.CO",
"math.IT"
] | In this paper, we first propose a novel common subexpression elimination (CSE) algorithm for matrix-vector multiplications over characteristic-2 fields. As opposed to previously proposed CSE algorithms, which usually focus on complexity savings due to recurrences of subexpressions, our CSE algorithm achieves two types ... | {
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0710.1916 | Evaluate the Word Error Rate of Binary Block Codes with Square Radius
Probability Density Function | [
"cs.IT",
"math.IT"
] | The word error rate (WER) of soft-decision-decoded binary block codes rarely has closed-form. Bounding techniques are widely used to evaluate the performance of maximum-likelihood decoding algorithm. But the existing bounds are not tight enough especially for low signal-to-noise ratios and become looser when a suboptim... | {
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0710.1920 | The Secrecy Capacity of the MIMO Wiretap Channel | [
"cs.IT",
"cs.CR",
"math.IT"
] | We consider the MIMO wiretap channel, that is a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the the transmitter and the legitimate receiver can communicate at some p... | {
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0710.1924 | A Heuristic Routing Mechanism Using a New Addressing Scheme | [
"cs.NI",
"cs.AI"
] | Current methods of routing are based on network information in the form of routing tables, in which routing protocols determine how to update the tables according to the network changes. Despite the variability of data in routing tables, node addresses are constant. In this paper, we first introduce the new concept of ... | {
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0710.1949 | Distributed Source Coding Using Continuous-Valued Syndromes | [
"cs.IT",
"math.IT"
] | This paper addresses the problem of coding a continuous random source correlated with another source which is only available at the decoder. The proposed approach is based on the extension of the channel coding concept of syndrome from the discrete into the continuous domain. If the correlation between the sources can ... | {
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0710.1962 | Stanford Matrix Considered Harmful | [
"cs.IR"
] | This note argues about the validity of web-graph data used in the literature. | {
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0710.2018 | Cognitive Interference Channels with Confidential Messages | [
"cs.IT",
"math.IT"
] | The cognitive interference channel with confidential messages is studied. Similarly to the classical two-user interference channel, the cognitive interference channel consists of two transmitters whose signals interfere at the two receivers. It is assumed that there is a common message source (message 1) known to both ... | {
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0710.2037 | An Affinity Propagation Based method for Vector Quantization Codebook
Design | [
"cs.CV"
] | In this paper, we firstly modify a parameter in affinity propagation (AP) to improve its convergence ability, and then, we apply it to vector quantization (VQ) codebook design problem. In order to improve the quality of the resulted codebook, we combine the improved AP (IAP) with the conventional LBG algorithm to gener... | {
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0710.2083 | Association Rules in the Relational Calculus | [
"cs.DB",
"cs.LG",
"cs.LO"
] | One of the most utilized data mining tasks is the search for association rules. Association rules represent significant relationships between items in transactions. We extend the concept of association rule to represent a much broader class of associations, which we refer to as \emph{entity-relationship rules.} Semanti... | {
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0710.2134 | Discrete entropies of orthogonal polynomials | [
"math.CA",
"cs.IT",
"math-ph",
"math.IT",
"math.MP"
] | Let $p_n$ be the $n$-th orthonormal polynomial on the real line, whose zeros are $\lambda_j^{(n)}$, $j=1, ..., n$. Then for each $j=1, ..., n$, $$ \vec \Psi_j^2 = (\Psi_{1j}^2, ..., \Psi_{nj}^2) $$ with $$ \Psi_{ij}^2= p_{i-1}^2 (\lambda_j^{(n)}) (\sum_{k=0}^{n-1} p_k^2(\lambda_j^{(n)}))^{-1}, \quad i=1, >..., n, $$ de... | {
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0710.2156 | Collaborative OLAP with Tag Clouds: Web 2.0 OLAP Formalism and
Experimental Evaluation | [
"cs.DB"
] | Increasingly, business projects are ephemeral. New Business Intelligence tools must support ad-lib data sources and quick perusal. Meanwhile, tag clouds are a popular community-driven visualization technique. Hence, we investigate tag-cloud views with support for OLAP operations such as roll-ups, slices, dices, cluster... | {
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0710.2227 | A System for Predicting Subcellular Localization of Yeast Genome Using
Neural Network | [
"cs.NE",
"cs.AI"
] | The subcellular location of a protein can provide valuable information about its function. With the rapid increase of sequenced genomic data, the need for an automated and accurate tool to predict subcellular localization becomes increasingly important. Many efforts have been made to predict protein subcellular localiz... | {
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0710.2228 | Recommendation model based on opinion diffusion | [
"physics.soc-ph",
"cs.CY",
"cs.IR",
"physics.data-an"
] | Information overload in the modern society calls for highly efficient recommendation algorithms. In this letter we present a novel diffusion based recommendation model, with users' ratings built into a transition matrix. To speed up computation we introduce a Green function method. The numerical tests on a benchmark da... | {
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0710.2231 | Comparison and Combination of State-of-the-art Techniques for
Handwritten Character Recognition: Topping the MNIST Benchmark | [
"cs.CV"
] | Although the recognition of isolated handwritten digits has been a research topic for many years, it continues to be of interest for the research community and for commercial applications. We show that despite the maturity of the field, different approaches still deliver results that vary enough to allow improvements b... | {
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0710.2243 | Edge Local Complementation and Equivalence of Binary Linear Codes | [
"math.CO",
"cs.IT",
"math.IT"
] | Orbits of graphs under the operation edge local complementation (ELC) are defined. We show that the ELC orbit of a bipartite graph corresponds to the equivalence class of a binary linear code. The information sets and the minimum distance of a code can be derived from the corresponding ELC orbit. By extending earlier r... | {
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0710.2268 | Complexity of some Path Problems in DAGs and Linear Orders | [
"math.CO",
"cs.IT",
"math.IT"
] | We investigate here the computational complexity of three natural problems in directed acyclic graphs. We prove their NP Completeness and consider their restrictions to linear orders. | {
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0710.2446 | The structure of verbal sequences analyzed with unsupervised learning
techniques | [
"cs.CL",
"cs.AI",
"cs.LG"
] | Data mining allows the exploration of sequences of phenomena, whereas one usually tends to focus on isolated phenomena or on the relation between two phenomena. It offers invaluable tools for theoretical analyses and exploration of the structure of sentences, texts, dialogues, and speech. We report here the results of ... | {
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0710.2496 | Regression estimation from an individual stable sequence | [
"math.PR",
"cs.IT",
"math.IT",
"math.ST",
"stat.TH"
] | We consider univariate regression estimation from an individual (non-random) sequence $(x_1,y_1),(x_2,y_2), ... \in \real \times \real$, which is stable in the sense that for each interval $A \subseteq \real$, (i) the limiting relative frequency of $A$ under $x_1, x_2, ...$ is governed by an unknown probability distrib... | {
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0710.2500 | Density estimation from an individual numerical sequence | [
"math.PR",
"cs.IT",
"math.IT",
"math.ST",
"stat.TH"
] | This paper considers estimation of a univariate density from an individual numerical sequence. It is assumed that (i) the limiting relative frequencies of the numerical sequence are governed by an unknown density, and (ii) there is a known upper bound for the variation of the density on an increasing sequence of interv... | {
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0710.2553 | Capacity of Linear Two-hop Mesh Networks with Rate Splitting,
Decode-and-forward Relaying and Cooperation | [
"cs.IT",
"math.IT"
] | A linear mesh network is considered in which a single user per cell communicates to a local base station via a dedicated relay (two-hop communication). Exploiting the possibly relevant inter-cell channel gains, rate splitting with successive cancellation in both hops is investigated as a promising solution to improve t... | {
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0710.2604 | Efficient Skyline Querying with Variable User Preferences on Nominal
Attributes | [
"cs.DB"
] | Current skyline evaluation techniques assume a fixed ordering on the attributes. However, dynamic preferences on nominal attributes are more realistic in known applications. In order to generate online response for any such preference issued by a user, we propose two methods of different characteristics. The first one ... | {
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0710.2611 | Geometric Analogue of Holographic Reduced Representation | [
"cs.AI",
"quant-ph"
] | Holographic reduced representations (HRR) are based on superpositions of convolution-bound $n$-tuples, but the $n$-tuples cannot be regarded as vectors since the formalism is basis dependent. This is why HRR cannot be associated with geometric structures. Replacing convolutions by geometric products one arrives at redu... | {
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0710.2659 | Rigidity and persistence for ensuring shape maintenance of multiagent
meta formations (ext'd version) | [
"cs.MA",
"cs.DM"
] | This paper treats the problem of the merging of formations, where the underlying model of a formation is graphical. We first analyze the rigidity and persistence of meta-formations, which are formations obtained by connecting several rigid or persistent formations. Persistence is a generalization to directed graphs of ... | {
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0710.2674 | Linguistic Information Energy | [
"cs.CL",
"cs.IT",
"math.IT"
] | In this treatment a text is considered to be a series of word impulses which are read at a constant rate. The brain then assembles these units of information into higher units of meaning. A classical systems approach is used to model an initial part of this assembly process. The concepts of linguistic system response, ... | {
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0710.2705 | Fingerprinting with Minimum Distance Decoding | [
"cs.IT",
"cs.CR",
"math.IT"
] | This work adopts an information theoretic framework for the design of collusion-resistant coding/decoding schemes for digital fingerprinting. More specifically, the minimum distance decision rule is used to identify 1 out of t pirates. Achievable rates, under this detection rule, are characterized in two distinct scena... | {
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0710.2782 | Effective linkage learning using low-order statistics and clustering | [
"cs.NE",
"cs.AI"
] | The adoption of probabilistic models for the best individuals found so far is a powerful approach for evolutionary computation. Increasingly more complex models have been used by estimation of distribution algorithms (EDAs), which often result better effectiveness on finding the global optima for hard optimization prob... | {
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0710.2848 | Consistency of trace norm minimization | [
"cs.LG"
] | Regularization by the sum of singular values, also referred to as the trace norm, is a popular technique for estimating low rank rectangular matrices. In this paper, we extend some of the consistency results of the Lasso to provide necessary and sufficient conditions for rank consistency of trace norm minimization with... | {
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0710.2852 | Generating models for temporal representations | [
"cs.CL"
] | We discuss the use of model building for temporal representations. We chose Polish to illustrate our discussion because it has an interesting aspectual system, but the points we wish to make are not language specific. Rather, our goal is to develop theoretical and computational tools for temporal model building tasks i... | {
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0710.2889 | An efficient reduction of ranking to classification | [
"cs.LG",
"cs.IR"
] | This paper describes an efficient reduction of the learning problem of ranking to binary classification. The reduction guarantees an average pairwise misranking regret of at most that of the binary classifier regret, improving a recent result of Balcan et al which only guarantees a factor of 2. Moreover, our reduction ... | {
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0710.2988 | Using Description Logics for Recognising Textual Entailment | [
"cs.CL"
] | The aim of this paper is to show how we can handle the Recognising Textual Entailment (RTE) task by using Description Logics (DLs). To do this, we propose a representation of natural language semantics in DLs inspired by existing representations in first-order logic. But our most significant contribution is the definit... | {
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} |
0710.3027 | Classical Capacities of Averaged and Compound Quantum Channels | [
"quant-ph",
"cs.IT",
"math-ph",
"math.IT",
"math.MP"
] | We determine the capacity of compound classical-quantum channels. As a consequence we obtain the capacity formula for the averaged classical-quantum channels. The capacity result for compound channels demonstrates, as in the classical setting, the existence of reliable universal classical-quantum codes in scenarios whe... | {
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} |
0710.3185 | Fuzzy Modeling of Electrical Impedance Tomography Image of the Lungs | [
"cs.AI",
"cs.CV"
] | Electrical Impedance Tomography (EIT) is a functional imaging method that is being developed for bedside use in critical care medicine. Aiming at improving the chest anatomical resolution of EIT images we developed a fuzzy model based on EIT high temporal resolution and the functional information contained in the pulmo... | {
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} |
0710.3246 | Bloom maps | [
"cs.DS",
"cs.IT",
"math.IT"
] | We consider the problem of succinctly encoding a static map to support approximate queries. We derive upper and lower bounds on the space requirements in terms of the error rate and the entropy of the distribution of values over keys: our bounds differ by a factor log e. For the upper bound we introduce a novel data st... | {
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} |
0710.3279 | Resource Allocation for Delay Differentiated Traffic in Multiuser OFDM
Systems | [
"cs.NI",
"cs.IT",
"math.IT"
] | Most existing work on adaptive allocation of subcarriers and power in multiuser orthogonal frequency division multiplexing (OFDM) systems has focused on homogeneous traffic consisting solely of either delay-constrained data (guaranteed service) or non-delay-constrained data (best-effort service). In this paper, we inve... | {
"Other": 1,
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} |
0710.3283 | Effects of Non-Identical Rayleigh Fading on Differential Unitary
Space-Time Modulation | [
"cs.PF",
"cs.IT",
"math.IT"
] | This paper has been withdrawn by the author. | {
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} |
0710.3285 | Nontraditional Scoring of C-tests | [
"cs.CY",
"cs.CL"
] | In C-tests the hypothesis of items local independence is violated, which doesn't permit to consider them as real tests. It is suggested to determine the distances between separate C-test items (blanks) and to combine items into clusters. Weights, inversely proportional to the number of items in corresponding clusters, ... | {
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} |
0710.3375 | On the Capacity of Interference Channels with One Cooperating
Transmitter | [
"cs.IT",
"math.IT"
] | Inner and outer bounds are established on the capacity region of two-sender, two-receiver interference channels where one transmitter knows both messages. The transmitter with extra knowledge is referred to as being cognitive. The inner bound is based on strategies that generalize prior work, and include rate-splitting... | {
"Other": 0,
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} |
0710.3427 | Error Correction Capability of Column-Weight-Three LDPC Codes | [
"cs.IT",
"math.IT"
] | In this paper, we investigate the error correction capability of column-weight-three LDPC codes when decoded using the Gallager A algorithm. We prove that the necessary condition for a code to correct $k \geq 5$ errors is to avoid cycles of length up to $2k$ in its Tanner graph. As a consequence of this result, we show... | {
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} |
0710.3502 | Using Synchronic and Diachronic Relations for Summarizing Multiple
Documents Describing Evolving Events | [
"cs.CL",
"cs.IR"
] | In this paper we present a fresh look at the problem of summarizing evolving events from multiple sources. After a discussion concerning the nature of evolving events we introduce a distinction between linearly and non-linearly evolving events. We present then a general methodology for the automatic creation of summari... | {
"Other": 0,
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} |
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