corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
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990682 | 1002.3307 | 2010-02-17 | Graph Zeta Function in the Bethe Free Energy and Loopy Belief Propagation | We propose a new approach to the analysis of Loopy Belief Propagation (LBP) by establishing a formula that connects the Hessian of the Bethe free energy with the edge zeta function. The formula has a number of theoretical implications on LBP. It is applied to give a sufficient condition that the Hessian of the Bethe fr... | [
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"name": "Kenji Fukumizu",
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8383756 | 1002.3312 | 2010-02-17 | Multiuser Scheduling in a Markov-modeled Downlink using Randomly Delayed ARQ Feedback | We focus on the downlink of a cellular system, which corresponds to the bulk of the data transfer in such wireless systems. We address the problem of opportunistic multiuser scheduling under imperfect channel state information, by exploiting the memory inherent in the channel. In our setting, the channel between the ba... | [
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118582360 | 1002.3334 | 2010-02-17 | Starburst evolution: free-free absorption in the radio spectra of luminous IRAS galaxies | We describe radio observations at 244 and 610 MHz of a sample of 20 luminous and ultra-luminous IRAS galaxies. These are a sub-set of a sample of 31 objects that have well-measured radio spectra up to at least 23 GHz. The radio spectra of these objects below 1.4 GHz show a great variety of forms and are rarely a simple... | [
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"name": "Anna [\"M.\",\"M.\"] Scaife",
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8106033 | 1002.3333 | 2010-02-17 | The Framework for Implementing ECommerce: The Role of Bank and Telecom in Bangladesh | In this paper, we describe an effective framework for adapting electronic commerce or e-commerce services in developing countries like Bangladesh. The internet has opened up a new horizon for commerce, namely electronic commerce (e-commerce). It entails the use of the internet in the marketing, identification, payment ... | [
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"name": "Nahid Imran",
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8220787 | 1002.3238 | 2010-02-17 | Exploring a Multidimensional Representation of Documents and Queries (extended version) | In Information Retrieval (IR), whether implicitly or explicitly, queries and documents are often represented as vectors. However, it may be more beneficial to consider documents and/or queries as multidimensional objects. Our belief is this would allow building "truly" interactive IR systems, i.e., where interaction is... | [
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115155353 | 1002.3290 | 2010-02-17 | Uniform Large deviations for infinite dimensional stochastic systems with jumps | Uniform large deviation principles for positive functionals of all equivalent types of infinite dimensional Brownian motions acting together with a Poisson random measure are established. The core of our approach is a variational representation formula which for an infinite sequence of i.i.d real Brownian motions and a... | [
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6368115 | 1002.3345 | 2010-02-17 | Interactive Submodular Set Cover | We introduce a natural generalization of submodular set cover and exact active learning with a finite hypothesis class (query learning). We call this new problem interactive submodular set cover. Applications include advertising in social networks with hidden information. We give an approximation guarantee for a novel ... | [
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43173006 | 1002.3626 | 2010-02-18 | The TAOS Project: Statistical Analysis of Multi-Telescope Time Series Data | The Taiwanese-American Occultation Survey (TAOS) monitors fields of up to ~1000 stars at 5 Hz simultaneously with four small telescopes to detect occultation events from small (~1 km) Kuiper Belt Objects (KBOs). The survey presents a number of challenges, in particular the fact that the occultation events we are search... | [
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119118021 | 1002.3414 | 2010-02-18 | The early UV/Optical emission from core-collapse supernovae | We derive a simple approximate model describing the early, hours to days, UV/optical supernova emission, which is produced by the expansion of the outer <~0.01 solar mass part of the shock-heated envelope, and precedes the optical emission driven by radioactive decay. Our model includes an approximate description of th... | [
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15287287 | 1002.3471 | 2010-02-18 | Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III | We present a search for non-zero theta_{13} and deviations of sin^2 theta_{23} from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande -I, -II, and -III. No distortions of the neutrino flux consistent with non-zero theta_{13} are found and both neutrino mass hierarchy hypotheses are in agreement... | [
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"author_id": "c ishihara_1",
"name": "Chizue Ishihara",
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6772074 | 1002.3474 | 2010-02-18 | Mixing Time and Stationary Expected Social Welfare of Logit Dynamics | We study "logit dynamics" [Blume, Games and Economic Behavior, 1993] for strategic games. This dynamics works as follows: at every stage of the game a player is selected uniformly at random and she plays according to a "noisy" best-response where the noise level is tuned by a parameter $\beta$. Such a dynamics defines ... | [
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"name": "Diodato Ferraioli",
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2014172 | 1002.3493 | 2010-02-18 | The Missing Piece Syndrome in Peer-to-Peer Communication | Typical protocols for peer-to-peer file sharing over the Internet divide files to be shared into pieces. New peers strive to obtain a complete collection of pieces from other peers and from a seed. In this paper we investigate a problem that can occur if the seeding rate is not large enough. The problem is that, even i... | [
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"math.IT"
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7064477 | 1002.3671 | 2010-02-18 | Privacy-Preserving Protocols for Eigenvector Computation | In this paper, we present a protocol for computing the principal eigenvector of a collection of data matrices belonging to multiple semi-honest parties with privacy constraints. Our proposed protocol is based on secure multi-party computation with a semi-honest arbitrator who deals with data encrypted by the other part... | [
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88518400 | 1002.3501 | 2010-02-18 | Asymptotic Bayes-optimality under sparsity of some multiple testing procedures | Within a Bayesian decision theoretic framework we investigate some asymptotic optimality properties of a large class of multiple testing rules. A parametric setup is considered, in which observations come from a normal scale mixture model and the total loss is assumed to be the sum of losses for individual tests. Our m... | [
"math.ST",
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14539589 | 1002.3603 | 2010-02-18 | The Spectrum of the Isotropic Diffuse Gamma-Ray Emission Derived From First-Year Fermi Large Area Telescope Data | We report on the first Fermi Large Area Telescope (LAT) measurements of the so-called "extra-galactic" diffuse gamma-ray emission (EGB). This component of the diffuse gamma-ray emission is generally considered to have an isotropic or nearly isotropic distribution on the sky with diverse contributions discussed in the l... | [
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"author_id": "m ackermann_1",
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16746896 | 1002.3448 | 2010-02-18 | Approximation by log-concave distributions, with applications to regression | We study the approximation of arbitrary distributions $P$ on $d$-dimensional space by distributions with log-concave density. Approximation means minimizing a Kullback--Leibler-type functional. We show that such an approximation exists if and only if $P$ has finite first moments and is not supported by some hyperplane.... | [
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118714168 | 1002.3585 | 2010-02-18 | New Insights into the Problem of the Surface Gravity Distribution of Cool DA White Dwarfs | We review at length the longstanding problem in the spectroscopic analysis of cool hydrogen-line (DA) white dwarfs (Teff < 13,000 K) where gravities are significantly higher than those found in hotter DA stars. The first solution that has been proposed for this problem is a mild and systematic helium contamination from... | [
"astro-ph.SR"
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] | null | null | null |
15296813 | 1002.3572 | 2010-02-18 | Optimal equilibria of the best shot game | We consider any network environment in which the "best shot game" is played. This is the case where the possible actions are only two for every node (0 and 1), and the best response for a node is 1 if and only if all her neighbors play 0. A natural application of the model is one in which the action 1 is the purchase o... | [
"physics.soc-ph"
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20209122 | 1002.3775 | 2010-02-19 | New method for the time calibration of an interferometric radio antenna array | Digital radio antenna arrays, like LOPES (LOFAR PrototypE Station), detect high-energy cosmic rays via the radio emission from atmospheric extensive air showers. LOPES is an array of dipole antennas placed within and triggered by the KASCADE-Grande experiment on site of the Karlsruhe Institute of Technology, Germany. T... | [
"astro-ph.IM",
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] | null | [
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] | null | null | null |
16517863 | 1002.3660 | 2010-02-19 | Halos and galaxies in the standard cosmological model: results from the Bolshoi simulation | We present the first results from the new Bolshoi N-body cosmological LCDM simulation that uses cosmological parameters favored by current observations. The Bolshoi simulation was done in a volume 250Mpc on a side using 8billion particles with mass and force resolution adequate to follow subhalos down to a completeness... | [
"astro-ph.CO"
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119112707 | 1002.3701 | 2010-02-19 | Photometric Response Functions of the SDSS Imager | The monochromatic illumination system is constructed to carry out in situ measurements of the response function of the mosaicked CCD imager used in the Sloan Digital Sky Survey (SDSS). The system is outlined and the results of the measurements, mostly during the first 6 years of the SDSS, are described. We present the ... | [
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
115164269 | 1002.3721 | 2010-02-19 | Remarks on the Cauchy functional equation and variations of it | This paper examines various aspects related to the Cauchy functional equation $f(x+y)=f(x)+f(y)$, a fundamental equation in the theory of functional equations. In particular, it considers its solvability and its stability relative to subsets of multi-dimensional Euclidean spaces and tori. Several new types of regularit... | [
"math.CA",
"math.GR"
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] | null | null | null |
119092532 | 1002.3609 | 2010-02-19 | Counting Orbifolds | We present several methods of counting the orbifolds C^D/Gamma. A correspondence between counting orbifold actions on C^D, brane tilings, and toric diagrams in D-1 dimensions is drawn. Barycentric coordinates and scaling mechanisms are introduced to characterize lattice simplices as toric diagrams. We count orbifolds o... | [
"hep-th"
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56349176 | 1002.3794 | 2010-02-19 | Dynamic risk measures | This paper gives an overview of the theory of dynamic convex risk measures for random variables in discrete time setting. We summarize robust representation results of conditional convex risk measures, and we characterize various time consistency properties of dynamic risk measures in terms of acceptance sets, penalty ... | [
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11632647 | 1002.3837 | 2010-02-19 | Quasispecies theory for finite populations | We present stochastic, finite-population formulations of the Crow-Kimura and Eigen models of quasispecies theory, for fitness functions that depend in an arbitrary way on the number of mutations from the wild type. We include back mutations in our description. We show that the fluctuation of the population numbers abou... | [
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7762506 | 1002.3684 | 2010-02-19 | Robust Independent Component Analysis by Iterative Maximization of the Kurtosis Contrast with Algebraic Optimal Step Size | Independent component analysis (ICA) aims at decomposing an observed random vector into statistically independent variables. Deflation-based implementations, such as the popular one-unit FastICA algorithm and its variants, extract the independent components one after another. A novel method for deflationary ICA, referr... | [
"stat.ML"
] | null | [
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14113332 | 1002.3893 | 2010-02-20 | The power of randomness in Bayesian optimal mechanism design | We investigate the power of randomness in the context of a fundamental Bayesian optimal mechanism design problem--a single seller aims to maximize expected revenue by allocating multiple kinds of resources to "unit-demand" agents with preferences drawn from a known distribution. When the agents' preferences are single-... | [
"cs.GT"
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1056487 | 1002.4006 | 2010-02-21 | Text/Graphics Separation and Skew Correction of Text Regions of Business Card Images for Mobile Devices | Separation of the text regions from background texture and graphics is an important step of any optical character recognition system for the images containing both texts and graphics. In this paper, we have presented a novel text/graphics separation technique and a method for skew correction of text regions extracted f... | [
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{
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"author_id": "s basu_10",
"name": "Subhadip Basu",
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5180822 | 1002.4007 | 2010-02-21 | Word level Script Identification from Bangla and Devanagri Handwritten Texts mixed with Roman Script | India is a multi-lingual country where Roman script is often used alongside different Indic scripts in a text document. To develop a script specific handwritten Optical Character Recognition (OCR) system, it is therefore necessary to identify the scripts of handwritten text correctly. In this paper, we present a system... | [
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{
"author_id": "r sarkar_1",
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7147884 | 1002.4058 | 2010-02-21 | Contextual Bandit Algorithms with Supervised Learning Guarantees | We address the problem of learning in an online, bandit setting where the learner must repeatedly select among $K$ actions, but only receives partial feedback based on its choices. We establish two new facts: First, using a new algorithm called Exp4.P, we show that it is possible to compete with the best in a set of $N... | [
"cs.LG"
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2055937 | 1002.4048 | 2010-02-21 | A Hough Transform based Technique for Text Segmentation | Text segmentation is an inherent part of an OCR system irrespective of the domain of application of it. The OCR system contains a segmentation module where the text lines, words and ultimately the characters must be segmented properly for its successful recognition. The present work implements a Hough transform based t... | [
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{
"author_id": "s saha_22",
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14366799 | 1002.4022 | 2010-02-21 | An Alternative Proof for the Capacity Region of the Degraded Gaussian MIMO Broadcast Channel | We provide an alternative proof for the capacity region of the degraded Gaussian multiple-input multiple-output (MIMO) broadcast channel. Our proof does not use the channel enhancement technique as opposed to the original proof of Weingertan {\it et. al.} and the alternative proof of Liu {\it et. al}. Our proof starts ... | [
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"name": "Sennur Ulukus",
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9946949 | 1002.4040 | 2010-02-21 | Handwritten Bangla Basic and Compound character recognition using MLP and SVM classifier | A novel approach for recognition of handwritten compound Bangla characters, along with the Basic characters of Bangla alphabet, is presented here. Compared to English like Roman script, one of the major stumbling blocks in Optical Character Recognition (OCR) of handwritten Bangla script is the large number of complex s... | [
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54931254 | 1002.4103 | 2010-02-22 | Asymptotic Analysis of the Green-Kubo Formula | A detailed study of various distinguished limits of the Green-Kubo formula for the self-diffusion coefficient is presented in this paper. First, an alternative representation of the Green-Kubo formula in terms of the solution of a Poisson equation is derived when the microscopic dynamics is Markovian. Then, the techniq... | [
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51483798 | 1002.3838 | 2010-02-22 | Imaging the molecular gas in a submm galaxy at z = 4.05: cold mode accretion or a major merger? | We present a high resolution (down to 0.18"), multi-transition imaging study of the molecular gas in the z = 4.05 submillimeter galaxy GN20. GN20 is one of the most luminous starburst galaxy known at z > 4, and is a member of a rich proto-cluster of galaxies at z = 4.05 in GOODS-North. We have observed the CO 1-0 and 2... | [
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3124905 | 1002.4172 | 2010-02-22 | Optimal Control Strategies in Delayed Sharing Information Structures | The $n$-step delayed sharing information structure is investigated. This information structure comprises of $K$ controllers that share their information with a delay of $n$ time steps. This information structure is a link between the classical information structure, where information is shared perfectly between the con... | [
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"name": "Aditya Mahajan",
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14566739 | 1002.4020 | 2010-02-22 | Causal Markov condition for submodular information measures | The causal Markov condition (CMC) is a postulate that links observations to causality. It describes the conditional independences among the observations that are entailed by a causal hypothesis in terms of a directed acyclic graph. In the conventional setting, the observations are random variables and the independence ... | [
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] | null | null | null |
5534711 | 1002.4109 | 2010-02-22 | Dynamical and bursty interactions in social networks | We present a modeling framework for dynamical and bursty contact networks made of agents in social interaction. We consider agents' behavior at short time scales, in which the contact network is formed by disconnected cliques of different sizes. At each time a random agent can make a transition from being isolated to b... | [
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3500256 | 1002.4068 | 2010-02-22 | Multiplexed communication over a high-speed quantum channel | In quantum information systems it is of particular interest to consider the best way in which to use the non-classical resources consumed by that system. Quantum communication protocols are integral to quantum information systems and are amongst the most promising near-term applications of quantum information science. ... | [
"quant-ph"
] | null | [
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{
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"name": "J. [\"G.\"] Webb",
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... | null |
118495267 | 1002.4268 | 2010-02-23 | Accurate fundamental parameters for 23 bright solar-type stars | We combine results from interferometry, asteroseismology and spectroscopy to determine accurate fundamental parameters of 23 bright solar-type stars, from spectral type F5 to K2 and luminosity classes III to V. For some stars we can use direct techniques to determine the mass, radius, luminosity and effective temperatu... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
54805812 | 1002.4383 | 2010-02-23 | Fermi Large Area Telescope observations of the Vela-X Pulsar Wind Nebula | We report on gamma-ray observations in the off-pulse window of the Vela pulsar PSR B0833-45, using 11 months of survey data from the Fermi Large Area Telescope (LAT). This pulsar is located in the 8 degree diameter Vela supernova remnant, which contains several regions of non-thermal emission detected in the radio, X-r... | [
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"name": "Markus Ackermann",
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6942152 | 1002.4658 | 2010-02-24 | Principal Component Analysis with Contaminated Data: The High Dimensional Case | We consider the dimensionality-reduction problem (finding a subspace approximation of observed data) for contaminated data in the high dimensional regime, where the number of observations is of the same magnitude as the number of variables of each observation, and the data set contains some (arbitrarily) corrupted obse... | [
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"name": "Constantine Caramanis",
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... | null |
8143794 | 1002.4458 | 2010-02-24 | Approximate Sparsity Pattern Recovery: Information-Theoretic Lower Bounds | Recovery of the sparsity pattern (or support) of an unknown sparse vector from a small number of noisy linear measurements is an important problem in compressed sensing. In this paper, the high-dimensional setting is considered. It is shown that if the measurement rate and per-sample signal-to-noise ratio (SNR) are fin... | [
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"name": "Michael Gastpar",
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... | null |
11927662 | 1002.4527 | 2010-02-24 | Alternating Direction Algorithms for Constrained Sparse Regression: Application to Hyperspectral Unmixing | Convex optimization problems are common in hyperspectral unmixing. Examples include: the constrained least squares (CLS) and the fully constrained least squares (FCLS) problems, which are used to compute the fractional abundances in linear mixtures of known spectra; the constrained basis pursuit (CBP) problem, which is... | [
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] | null | [
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] | null | null | null |
119228766 | 1002.4415 | 2010-02-24 | Constraints on Cosmological Dark Matter Annihilation from the Fermi-LAT Isotropic Diffuse Gamma-Ray Measurement | The first published Fermi large area telescope (Fermi-LAT) measurement of the isotropic diffuse gamma-ray emission is in good agreement with a single power law, and is not showing any signature of a dominant contribution from dark matter sources in the energy range from 20 to 100 GeV. We use the absolute size and spect... | [
"astro-ph.CO",
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"hep-ph"
] | null | [
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{
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{
"author_id": "m ackermann_1",
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... | null |
115174657 | 1002.4546 | 2010-02-24 | Nonlinear Expectations and Stochastic Calculus under Uncertainty | In this book, we introduce a new approach of sublinear expectation to deal with the problem of probability and distribution model uncertainty. We a new type of (robust) normal distributions and the related central limit theorem under sublinear expectation. We also present a new type of Brownian motion under sublinear e... | [
"math.PR"
] | null | [
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] | null | null | null |
11630334 | 1002.4486 | 2010-02-24 | Multivariate quantiles and multiple-output regression quantiles: From $L_1$ optimization to halfspace depth | A new multivariate concept of quantile, based on a directional version of Koenker and Bassett's traditional regression quantiles, is introduced for multivariate location and multiple-output regression problems. In their empirical version, those quantiles can be computed efficiently via linear programming techniques. Co... | [
"math.ST",
"stat.TH"
] | null | [
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] | null | null | null |
18340425 | 1002.4533 | 2010-02-24 | Maximum L$q$-likelihood estimation | In this paper, the maximum L$q$-likelihood estimator (ML$q$E), a new parameter estimator based on nonextensive entropy [Kibernetika 3 (1967) 30--35] is introduced. The properties of the ML$q$E are studied via asymptotic analysis and computer simulations. The behavior of the ML$q$E is characterized by the degree of dist... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2394901 | 1002.4548 | 2010-02-24 | Interference Alignment for the Multi-Antenna Compound Wiretap Channel | We study a wiretap channel model where the sender has $M$ transmit antennas and there are two groups consisting of $J_1$ and $J_2$ receivers respectively. Each receiver has a single antenna. We consider two scenarios. First we consider the compound wiretap model -- group 1 constitutes the set of legitimate receivers, a... | [
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] | null |
215824810 | 1002.4665 | 2010-02-24 | Syntactic Topic Models | The syntactic topic model (STM) is a Bayesian nonparametric model of language that discovers latent distributions of words (topics) that are both semantically and syntactically coherent. The STM models dependency parsed corpora where sentences are grouped into documents. It assumes that each word is drawn from a latent... | [
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{
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{
"author_id": "d blei_1",
"name": "David [\"M.\"] Blei",
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... | null |
119260654 | 1002.4407 | 2010-02-24 | A first unbiased global NLO determination of parton distributions and their uncertainties | We present a determination of the parton distributions of the nucleon from a global set of hard scattering data using the NNPDF methodology: NNPDF2.0. Experimental data include deep-inelastic scattering with the combined HERA-I dataset, fixed target Drell-Yan production, collider weak boson production and inclusive jet... | [
"hep-ph",
"hep-ex"
] | null | [
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{
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"name": "Luigi [\"Del\"] Debbio",
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44913615 | 1002.4547 | 2010-02-24 | A two-sample test for high-dimensional data with applications to gene-set testing | We propose a two-sample test for the means of high-dimensional data when the data dimension is much larger than the sample size. Hotelling's classical $T^2$ test does not work for this "large $p$, small $n$" situation. The proposed test does not require explicit conditions in the relationship between the data dimension... | [
"math.ST",
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] | null | [
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] | null | null | null |
118630265 | 1002.4449 | 2010-02-24 | Gravity from the extension of spatial diffeomorphisms | The possibility of the extension of spatial diffeomorphisms to a larger family of symmetries in a class of classical field theories is studied. The generator of the additional local symmetry contains a quadratic kinetic term and a potential term which can be a general (not necessarily local) functional of the metric. F... | [
"hep-th"
] | null | [
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] | null | null | null |
12002833 | 1002.4526 | 2010-02-24 | Horizontal visibility graphs: exact results for random time series | The visibility algorithm has been recently introduced as a mapping between time series and complex networks. This procedure allows to apply methods of complex network theory for characterizing time series. In this work we present the horizontal visibility algorithm, a geometrically simpler and analytically solvable ver... | [
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"nlin.CD",
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] | null | [
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] | null | null | null |
12617616 | 1002.4438 | 2010-02-24 | CGHTRIMMER: Discretizing noisy Array CGH Data | The development of cancer is largely driven by the gain or loss of subsets of the genome, promoting uncontrolled growth or disabling defenses against it. Identifying genomic regions whose DNA copy number deviates from the normal is therefore central to understanding cancer evolution. Array-based comparative genomic hyb... | [
"q-bio.GN",
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{
"author_id": "c tsourakakis_1",
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{
"author_id": "d tolliver_0",
"name": "David Tolliver",
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... | null |
119222900 | 1002.4578 | 2010-02-24 | Spatial distribution of interstellar dust in the Sun vicinity, comparison with neutral sodium-bearing gas | 3D tomography of the interstellar dust and gas may be useful in many respects, from the physical and chemical evolution of the ISM itself to foreground decontamination of the CMB, or various studies of the environments of specific objects. Our goal here is to bring more precise information on the distance to nearby int... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119263373 | 1002.4593 | 2010-02-24 | AKLT Models with Quantum Spin Glass Ground States | We study AKLT models on locally tree-like lattices of fixed connectivity and find that they exhibit a variety of ground states depending upon the spin, coordination and global (graph) topology. We find a) quantum paramagnetic or valence bond solid ground states, b) critical and ordered N\'eel states on bipartite infini... | [
"cond-mat.dis-nn",
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] | null | [
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{
"author_id": "c laumann_1",
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{
"author_id": "s parameswaran_1",
"name": "Siddharth [\"A.\"] Parameswaran",
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"h_index":... | null |
12406788 | 1002.4470 | 2010-02-24 | Large-System Analysis of Joint Channel and Data Estimation for MIMO DS-CDMA Systems | This paper presents a large-system analysis of the performance of joint channel estimation, multiuser detection, and per-user decoding (CE-MUDD) for randomly-spread multiple-input multiple-output (MIMO) direct-sequence code-division multiple-access (DS-CDMA) systems. A suboptimal receiver based on successive decoding i... | [
"cs.IT",
"math.IT"
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{
"author_id": "m vehkaperä_1",
"name": "Mikko Vehkaperä",
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"num_papers": n... | null |
15242809 | 1002.4801 | 2010-02-25 | Confidence bands in density estimation | Given a sample from some unknown continuous density $f:\mathbb{R}\to\mathbb{R}$, we construct adaptive confidence bands that are honest for all densities in a "generic" subset of the union of $t$-H\"older balls, $0<t\le r$, where $r$ is a fixed but arbitrary integer. The exceptional ("nongeneric") set of densities for ... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17841536 | 1002.4831 | 2010-02-25 | On Analysis and Evaluation of Multi-Sensory Cognitive Learning of a Mathematical Topic Using Artificial Neural Networks | This piece of research belongs to the field of educational assessment issue based upon the cognitive multimedia theory. Considering that theory; visual and auditory material should be presented simultaneously to reinforce the retention of a mathematical learned topic, a carefully computer-assisted learning (CAL) module... | [
"cs.NE"
] | null | [
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] | [] | [
{
"author_id": "f al-zahrani_0",
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{
"author_id": "h mustafa_3",
"name": "Hassan [\"M.\",\"H.\"] Mustafa",
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"h_index": nu... | null |
15563584 | 1002.4754 | 2010-02-25 | Vast volatility matrix estimation for high-frequency financial data | High-frequency data observed on the prices of financial assets are commonly modeled by diffusion processes with micro-structure noise, and realized volatility-based methods are often used to estimate integrated volatility. For problems involving a large number of assets, the estimation objects we face are volatility ma... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118863065 | 1002.4788 | 2010-02-25 | Optical hybrid approaches to quantum information | This article reviews recent hybrid approaches to optical quantum information processing, in which both discrete and continuous degrees of freedom are exploited. There are well-known limitations to optical single-photon-based qubit and multi-photon-based qumode implementations of quantum communication and quantum comput... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
21349059 | 1002.4723 | 2010-02-25 | Group field theory with non-commutative metric variables | We introduce a dual formulation of group field theories, making them a type of non-commutative field theories. In this formulation, the variables of the field are Lie algebra variables with a clear interpretation in terms of simplicial geometry. For Ooguri-type models, the Feynman amplitudes are simplicial path integra... | [
"hep-th",
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{
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{
"author_id": "d oriti_1",
"name": "Daniele Oriti",
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"h_index": null,
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... | null |
88519565 | 1002.4734 | 2010-02-25 | Nearly unbiased variable selection under minimax concave penalty | We propose MC+, a fast, continuous, nearly unbiased and accurate method of penalized variable selection in high-dimensional linear regression. The LASSO is fast and continuous, but biased. The bias of the LASSO may prevent consistent variable selection. Subset selection is unbiased but computationally costly. The MC+ h... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
24822628 | 1002.4703 | 2010-02-25 | Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector | We report on several features present in the energy spectrum from an ultra low-noise germanium detector operated at 2,100 m.w.e. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss several possible causes for an irreducible excess of... | [
"astro-ph.CO",
"hep-ex",
"physics.ins-det"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13318811 | 1002.4908 | 2010-02-25 | Adaptive Bound Optimization for Online Convex Optimization | We introduce a new online convex optimization algorithm that adaptively chooses its regularization function based on the loss functions observed so far. This is in contrast to previous algorithms that use a fixed regularization function such as L2-squared, and modify it only via a single time-dependent parameter. Our a... | [
"cs.LG"
] | null | [
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] | [] | [
{
"author_id": "h mcmahan_1",
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{
"author_id": "m streeter_1",
"name": "Matthew [\"J.\"] Streeter",
"publication_history": null,
"h_index": null,
"n... | null |
16979549 | 1002.4862 | 2010-02-25 | Less Regret via Online Conditioning | We analyze and evaluate an online gradient descent algorithm with adaptive per-coordinate adjustment of learning rates. Our algorithm can be thought of as an online version of batch gradient descent with a diagonal preconditioner. This approach leads to regret bounds that are stronger than those of standard online grad... | [
"cs.LG",
"cs.AI"
] | null | [
"target.author.publication_history",
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] | [] | [
{
"author_id": "m streeter_1",
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{
"author_id": "h mcmahan_1",
"name": "H. [\"B.\"] McMahan",
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"h_index": null,
"n... | null |
9781533 | 1002.4802 | 2010-02-25 | Gaussian Process Structural Equation Models with Latent Variables | In a variety of disciplines such as social sciences, psychology, medicine and economics, the recorded data are considered to be noisy measurements of latent variables connected by some causal structure. This corresponds to a family of graphical models known as the structural equation model with latent variables. While ... | [
"cs.LG",
"stat.ML"
] | null | [
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] | [] | [
{
"author_id": "r silva_9",
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},
{
"author_id": "r gramacy_1",
"name": "Robert [\"B.\"] Gramacy",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
362757 | 1002.4770 | 2010-02-25 | Optimal and fast detection of spatial clusters with scan statistics | We consider the detection of multivariate spatial clusters in the Bernoulli model with $N$ locations, where the design distribution has weakly dependent marginals. The locations are scanned with a rectangular window with sides parallel to the axes and with varying sizes and aspect ratios. Multivariate scan statistics p... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118570648 | 1002.4708 | 2010-02-25 | Quantifying dwarf satellites through gravitational imaging: the case of SDSS J120602.09+514229.5 | SDSS J120602.09+514229.5 is a gravitational lens system formed by a group of galaxies at redshift z=0.422 lensing a bright background galaxy at redshift z=2.001. The main peculiarity of this system is the presence of a luminous satellite near the Einstein radius, that slightly deforms the giant arc. This makes SDSS J12... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
37179804 | 1002.4928 | 2010-02-26 | f(R) theories | Over the past decade, f(R) theories have been extensively studied as one of the simplest modifications to General Relativity. In this article we review various applications of f(R) theories to cosmology and gravity - such as inflation, dark energy, local gravity constraints, cosmological perturbations, and spherically ... | [
"gr-qc",
"astro-ph.CO",
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119077570 | 1002.4913 | 2010-02-26 | Quantum discord and local demons | Quantum discord was proposed as a measure of the "quantumness" of correlations. There are at least three different discord-like quantities, two of which determine the difference between the efficiencies of a Szilard's engine under different sets of restrictions. The three discord measures vanish simulataneosly. We intr... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [
{
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}
] | [
{
"author_id": "a brodutch_1",
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{
"author_id": "d terno_1",
"name": "Daniel [\"R.\"] Terno",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
88511703 | 1002.4946 | 2010-02-26 | Quantile estimation with adaptive importance sampling | We introduce new quantile estimators with adaptive importance sampling. The adaptive estimators are based on weighted samples that are neither independent nor identically distributed. Using a new law of iterated logarithm for martingales, we prove the convergence of the adaptive quantile estimators for general distribu... | [
"math.ST",
"stat.TH"
] | null | [
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] | [] | [
{
"author_id": "d egloff_1",
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{
"author_id": "m leippold_1",
"name": "Markus Leippold",
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88519488 | 1002.4931 | 2010-02-26 | Defining probability density for a distribution of random functions | The notion of probability density for a random function is not as straightforward as in finite-dimensional cases. While a probability density function generally does not exist for functional data, we show that it is possible to develop the notion of density when functional data are considered in the space determined by... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117962576 | 1003.0041 | 2010-02-26 | Perturbed Copula: Introducing the skew effect in the co-dependence | Gaussian copulas are widely used in the industry to correlate two random variables when there is no prior knowledge about the co-dependence between them. The perturbed Gaussian copula approach allows introducing the skew information of both random variables into the co-dependence structure. The analytical expression of... | [
"q-fin.PR",
"q-fin.CP"
] | null | [
"target.author.publication_history"
] | [] | [
{
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994134 | 1001.3297 | 2010-02-26 | Gaussian MIMO Broadcast Channels with Common and Confidential Messages | We study the two-user Gaussian multiple-input multiple-output (MIMO) broadcast channel with common and confidential messages. In this channel, the transmitter sends a common message to both users, and a confidential message to each user which is kept perfectly secret from the other user. We obtain the entire capacity r... | [
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{
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"name": "Sennur Ulukus",
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"n... | null |
13296815 | 1003.0024 | 2010-02-26 | Asymptotic Analysis of Generative Semi-Supervised Learning | Semisupervised learning has emerged as a popular framework for improving modeling accuracy while controlling labeling cost. Based on an extension of stochastic composite likelihood we quantify the asymptotic accuracy of generative semi-supervised learning. In doing so, we complement distribution-free analysis by provid... | [
"cs.LG"
] | null | [
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{
"author_id": "j dillon_2",
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{
"author_id": "k balasubramanian_4",
"name": "Krishnakumar Balasubramanian",
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53513502 | 1003.0080 | 2010-02-27 | The Dynamics of a Rigid Body in Potential Flow with Circulation | We consider the motion of a two-dimensional body of arbitrary shape in a planar irrotational, incompressible fluid with a given amount of circulation around the body. We derive the equations of motion for this system by performing symplectic reduction with respect to the group of volume-preserving diffeomorphisms and o... | [
"math-ph",
"math.MP"
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{
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{
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{
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{
"author_id": "e kanso_1",
"name": "Eva Kanso",
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6030272 | 1003.0120 | 2010-02-27 | Learning from Logged Implicit Exploration Data | We provide a sound and consistent foundation for the use of \emph{nonrandom} exploration data in "contextual bandit" or "partially labeled" settings where only the value of a chosen action is learned. The primary challenge in a variety of settings is that the exploration policy, in which "offline" data is logged, is no... | [
"cs.LG",
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] | null | [
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{
"author_id": "a strehl_0",
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{
"author_id": "j langford_1",
"name": "John Langford",
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207178795 | 1003.0146 | 2010-02-27 | A Contextual-Bandit Approach to Personalized News Article Recommendation | Personalized web services strive to adapt their services (advertisements, news articles, etc) to individual users by making use of both content and user information. Despite a few recent advances, this problem remains challenging for at least two reasons. First, web service is featured with dynamically changing pools o... | [
"cs.LG",
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"cs.IR"
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74481 | 1003.0078 | 2010-02-27 | Security Analysis of Online Centroid Anomaly Detection | Security issues are crucial in a number of machine learning applications, especially in scenarios dealing with human activity rather than natural phenomena (e.g., information ranking, spam detection, malware detection, etc.). It is to be expected in such cases that learning algorithms will have to deal with manipulated... | [
"stat.ML"
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"name": "Pavel Laskov",
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31833003 | 1003.0140 | 2010-02-27 | Memory Metamaterials | The resonant elements that grant metamaterials their unique properties have the fundamental limitation of restricting their useable frequency bandwidth. The development of frequency-agile metamaterials has helped to alleviate these bandwidth restrictions by allowing real-time tuning of the metamaterial frequency respon... | [
"cond-mat.mes-hall"
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"author_id": "h kim_212",
"name": "Hyun-Tak Kim",
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... | null |
18386126 | 1003.0079 | 2010-02-27 | Non-Sparse Regularization for Multiple Kernel Learning | Learning linear combinations of multiple kernels is an appealing strategy when the right choice of features is unknown. Previous approaches to multiple kernel learning (MKL) promote sparse kernel combinations to support interpretability and scalability. Unfortunately, this 1-norm MKL is rarely observed to outperform tr... | [
"cs.LG",
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119224538 | 1003.0216 | 2010-02-28 | Spontaneous breaking of four-fold rotational symmetry in two-dimensional electron systems as a topological phase transition | Motivated by recent observations of $C_4$ symmetry breaking in strongly correlated two-dimensional electron systems on a square lattice, we analyze this phenomenon within an extended Fermi liquid approach. It is found that the symmetry violation is triggered by a continuous topological phase transition associated with ... | [
"cond-mat.str-el"
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{
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{
"author_id": "j clark_6",
"name": "J. [\"W.\"] Clark",
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1918673 | 1003.0358 | 2010-03-01 | Deep Big Simple Neural Nets Excel on Handwritten Digit Recognition | Good old on-line back-propagation for plain multi-layer perceptrons yields a very low 0.35% error rate on the famous MNIST handwritten digits benchmark. All we need to achieve this best result so far are many hidden layers, many neurons per layer, numerous deformed training images, and graphics cards to greatly speed u... | [
"cs.NE",
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119201959 | 1003.0299 | 2010-03-01 | The local B-polarization of the CMB: a very sensitive probe of cosmic defects | We present a new and especially powerful signature of cosmic strings and other topological or non-topological defects in the polarization of the cosmic microwave background (CMB). We show that even if defects contribute 1% or less in the CMB temperature anisotropy spectrum, their signature in the local $\tilde{B}$-pola... | [
"astro-ph.CO",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history"
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{
"author_id": "j garcía-bellido_1",
"name": "Juan García-Bellido",
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{
"author_id": "r durrer_1",
"name": "Ruth Durrer",
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56164570 | 1003.0376 | 2010-03-01 | Holographic superconductors in a model of non-relativistic gravity | We have studied holographic superconductors with spherical symmetry in the Ho$\check{\textbf{r}}$ava-Lifshitz gravity by using a semi analytical method, and also we have calculated the critical temperature and shown when the condensation will appear in a similar pattern as in the Einstein-Gauss- Bonnet gravity. We have... | [
"hep-th",
"cond-mat.supr-con",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
115154891 | 1003.0251 | 2010-03-01 | Sparse Legendre expansions via $\ell_1$ minimization | We consider the problem of recovering polynomials that are sparse with respect to the basis of Legendre polynomials from a small number of random samples. In particular, we show that a Legendre s-sparse polynomial of maximal degree N can be recovered from m = O(s log^4(N)) random samples that are chosen independently a... | [
"math.NA",
"math.CA",
"math.FA",
"math.PR"
] | null | [
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{
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{
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{
"corpus_id": "9315983",
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{
"author_id": "h rauhut_1",
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{
"author_id": "r ward_4",
"name": "Rachel [\"A.\"] Ward",
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"h_index": null,
"num_papers": null... | null |
118651323 | 1003.0382 | 2010-03-01 | Methods for calculating nonconcave entropies | Five different methods which can be used to analytically calculate entropies that are nonconcave as functions of the energy in the thermodynamic limit are discussed and compared. The five methods are based on the following ideas and techniques: i) microcanonical contraction, ii) metastable branches of the free energy, ... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12111055 | 1003.0428 | 2010-03-01 | Free Energy Methods for Bayesian Inference: Efficient Exploration of Univariate Gaussian Mixture Posteriors | Because of their multimodality, mixture posterior distributions are difficult to sample with standard Markov chain Monte Carlo (MCMC) methods. We propose a strategy to enhance the sampling of MCMC in this context, using a biasing procedure which originates from computational Statistical Physics. The principle is first ... | [
"stat.CO",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11037834 | 1003.0219 | 2010-03-01 | Sequential Compressed Sensing | Compressed sensing allows perfect recovery of sparse signals (or signals sparse in some basis) using only a small number of random measurements. Existing results in compressed sensing literature have focused on characterizing the achievable performance by bounding the number of samples required for a given level of sig... | [
"cs.IT",
"math.IT"
] | null | [
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] | [
{
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{
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},
{
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{
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"name": "Dmitry [\"M.\"] Malioutov",
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},
{
"author_id": "s sanghavi_1",
"name": "S. Sanghavi",
"publication_history": null,
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15699063 | 1003.0470 | 2010-03-01 | Unsupervised Supervised Learning II: Training Margin Based Classifiers without Labels | Many popular linear classifiers, such as logistic regression, boosting, or SVM, are trained by optimizing a margin-based risk function. Traditionally, these risk functions are computed based on a labeled dataset. We develop a novel technique for estimating such risks using only unlabeled data and the marginal label dis... | [
"cs.LG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p donmez_1",
"name": "Pinar [\"E.\"] Donmez",
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},
{
"author_id": "k balasubramanian_4",
"name": "Krishnakumar Balasubramanian",
"publication_history": null,
"h_index": n... | null |
3174800 | 1003.0460 | 2010-03-01 | Approximating the Fr\'echet Distance for Realistic Curves in Near Linear Time | We present simple and practical $(1+\eps)$-approximation algorithm for the Frechet distance between curves. To analyze this algorithm we introduce a new realistic family of curves, $c$-packed curves, that is closed under simplification. We believe the notion of $c$-packed curves to be of independent interest. We show t... | [
"cs.CG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a driemel_1",
"name": "Anne Driemel",
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},
{
"author_id": "s har-peled_1",
"name": "Sariel Har-Peled",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
118431923 | 1003.0296 | 2010-03-01 | Kohn-Sham potential with discontinuity for band gap materials | We model a Kohn-Sham potential with a discontinuity at integer particle numbers derived from the GLLB approximation of Gritsenko et al. We evaluate the Kohn-Sham gap and the discontinuity to obtain the quasiparticle gap. This allows us to compare the Kohn-Sham gaps to those obtained by accurate many-body perturbation t... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
88512262 | 1003.0275 | 2010-03-01 | Statistical inference for time-changed L\'{e}vy processes via composite characteristic function estimation | In this article, the problem of semi-parametric inference on the parameters of a multidimensional L\'{e}vy process $L_t$ with independent components based on the low-frequency observations of the corresponding time-changed L\'{e}vy process $L_{\mathcal{T}(t)}$, where $\mathcal{T}$ is a nonnegative, nondecreasing real-v... | [
"stat.ME",
"math.ST",
"stat.AP",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6616523 | 1003.0400 | 2010-03-01 | Collaborative Hierarchical Sparse Modeling | Sparse modeling is a powerful framework for data analysis and processing. Traditionally, encoding in this framework is done by solving an l_1-regularized linear regression problem, usually called Lasso. In this work we first combine the sparsity-inducing property of the Lasso model, at the individual feature level, wit... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "p sprechmann_1",
"name": "Pablo Sprechmann",
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"h_index": null,
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},
{
"author_id": "i ramírez paulino_1",
"name": "Ignacio [\"Francisco\"] Ramírez Paulino",
"publication_history": null,
"h... | null |
118749904 | 1003.0303 | 2010-03-01 | Non-uniformity of a planar polarizer as a reason of spin-transfer induced vortex oscillations at zero field | We discuss a possible mechanism of the spin-transfer induced oscillations of a vortex in the free layer of spin-valve nanostructures, in which the polarizer layer has a planar magnetization. We demonstrate that if such planar polarizer is essentially non-uniform, steady gyrotropic vortex motion with large amplitude can... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a khvalkovskiy_1",
"name": "Alexey Khvalkovskiy",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j grollier_1",
"name": "Julie Grollier",
"publication_history": null,
"h_index": null,
"num_pap... | null |
96452931 | 1003.0433 | 2010-03-01 | Solar-like oscillations and magnetic activity of the slow rotator EK Eri | We aim to understand the interplay between non-radial oscillations and stellar magnetic activity and test the feasibility of doing asteroseismology of magnetically active stars. We analyze 30 years of photometric time-series data, 3 years of HARPS radial velocity monitoring, and 3 nights of high-cadence HARPS asterosei... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
56234919 | 1003.0443 | 2010-03-01 | Probability Distribution of the Free Energy of the Continuum Directed Random Polymer in 1+1 dimensions | We consider the solution of the stochastic heat equation \partial_T \mathcal{Z} = 1/2 \partial_X^2 \mathcal{Z} - \mathcal{Z} \dot{\mathscr{W}} with delta function initial condition \mathcal{Z} (T=0)= \delta_0 whose logarithm, with appropriate normalizations, is the free energy of the continuum directed polymer, or the ... | [
"math.PR",
"cond-mat.stat-mech",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
263709994 | 1003.0385 | 2010-03-01 | The gauge theory of dislocations: a nonuniformly moving screw dislocation | We investigate the nonuniform motion of a straight screw dislocation in infinite media in the framework of the translational gauge theory of dislocations. The equations of motion are derived for an arbitrary moving screw dislocation. The fields of the elastic velocity, elastic distortion, dislocation density and disloc... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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