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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14699145 | 1009.1128 | 2010-09-06 | Distributed Basis Pursuit | We propose a distributed algorithm for solving the optimization problem Basis Pursuit (BP). BP finds the least L1-norm solution of the underdetermined linear system Ax = b and is used, for example, in compressed sensing for reconstruction. Our algorithm solves BP on a distributed platform such as a sensor network, and ... | [
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119163183 | 1009.1140 | 2010-09-06 | The Great Observatories Origins Deep Survey: Constraints on the Lyman Continuum Escape Fraction Distribution of Lyman--Break Galaxies at 3.4<z<4.5 | We use ultra-deep ultraviolet VLT/VIMOS intermediate-band and VLT/FORS1 narrow-band imaging in the GOODS Southern field to derive limits on the distribution of the escape fraction (f_esc) of ionizing radiation for L >~ L*(z=3) Lyman Break Galaxies (LBGs) at redshift 3.4--4.5. Only one LBG, at redshift z=3.795, is detec... | [
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51395636 | 1009.0960 | 2010-09-06 | Rapidly Decaying Supernova 2010X: A Candidate ".Ia" Explosion | We present the discovery, photometric and spectroscopic follow-up observations of SN 2010X (PTF 10bhp). This supernova decays exponentially with tau_d=5 days, and rivals the current recordholder in speed, SN 2002bj. SN 2010X peaks at M_r=-17mag and has mean velocities of 10,000 km/s. Our light curve modeling suggests a... | [
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16117146 | 1009.1058 | 2010-09-06 | Evolution of Dust Temperature of Galaxies through Cosmic Time as seen by Herschel | We study the dust properties of galaxies in the redshift range 0.1<z<2.8 observed by the Herschel Space Observatory in the field of the Great Observatories Origins Deep Survey-North as part of PEP and HerMES key programmes. Infrared (IR) luminosity (L_IR) and dust temperature (T_dust) of galaxies are derived from the s... | [
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2955699 | 1009.1166 | 2010-09-06 | Functorial Data Migration | In this paper we present a simple database definition language: that of categories and functors. A database schema is a small category and an instance is a set-valued functor on it. We show that morphisms of schemas induce three "data migration functors", which translate instances from one schema to the other in canoni... | [
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53732602 | 1009.1003 | 2010-09-06 | The RooStats Project | RooStats is a project to create advanced statistical tools required for the analysis of LHC data, with emphasis on discoveries, confidence intervals, and combined measurements. The idea is to provide the major statistical techniques as a set of C++ classes with coherent interfaces, so that can be used on arbitrary mode... | [
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6008128 | 1009.1013 | 2010-09-06 | Automatic Detection of Blue-White Veil and Related Structures in Dermoscopy Images | Dermoscopy is a non-invasive skin imaging technique, which permits visualization of features of pigmented melanocytic neoplasms that are not discernable by examination with the naked eye. One of the most important features for the diagnosis of melanoma in dermoscopy images is the blue-white veil (irregular, structurele... | [
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18986884 | 1009.1132 | 2010-09-06 | Efficient Collaborative Application Monitoring Scheme for Mobile Networks | New operating systems for mobile devices allow their users to download millions of applications created by various individual programmers, some of which may be malicious or flawed. In order to detect that an application is malicious, monitoring its operation in a real environment for a significant period of time is oft... | [
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1221642 | 1009.1045 | 2010-09-06 | Efficient stochastic thermostatting of path integral molecular dynamics | The path integral molecular dynamics (PIMD) method provides a convenient way to compute the quantum mechanical structural and thermodynamic properties of condensed phase systems at the expense of introducing an additional set of high-frequency normal modes on top of the physical vibrations of the system. Efficiently sa... | [
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118766514 | 1009.1078 | 2010-09-06 | Discrete Nonlinear Schrodinger Equation, Solitons and Organizing Principles for Protein Folding | We introduce a novel generalization of the discrete nonlinear Schr\"odinger equation. It supports solitons that describe how proteins fold. As an example we scrutinize the villin headpiece HP35, an archetypal protein for testing both experimental and theoretical approaches to protein folding. Using explicit soliton pro... | [
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19249200 | 1009.1385 | 2010-09-07 | Precursors of short gamma-ray bursts | We carried out a systematic search of precursors on the sample of short GRBs observed by Swift. We found that ~8-10% of short GRBs display such early episode of emission. One burst (GRB 090510) shows two precursor events, the former ~13 s and the latter ~0.5 s before the GRB. We did not find any substantial difference ... | [
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118728692 | 1009.1307 | 2010-09-07 | Critical Correlations for Short-Range Valence-Bond Wave Functions on the Square Lattice | We investigate the arguably simplest $SU(2)$-invariant wave functions capable of accounting for spin-liquid behavior, expressed in terms of nearest-neighbor valence-bond states on the square lattice and characterized by different topological invariants. While such wave-functions are known to exhibit short-range spin co... | [
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12697421 | 1009.1371 | 2010-09-07 | The Deep SPIRE HerMES Survey: Spectral Energy Distributions and their Astrophysical Indications at High Redshift | The Spectral and Photometric Imaging Receiver (SPIRE) on Herschel has been carrying out deep extragalactic surveys, one of whose aims is to establish spectral energy distributions (SED)s of individual galaxies spanning the infrared/submillimeter (IR/SMM) wavelength region. We report observations of the (IR/SMM) emissio... | [
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118683067 | 1009.1319 | 2010-09-07 | NP-hardness of decoding quantum error-correction codes | Though the theory of quantum error correction is intimately related to the classical coding theory, in particular, one can construct quantum error correction codes (QECCs) from classical codes with the dual containing property, this does not necessarily imply that the computational complexity of decoding QECCs is the s... | [
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10824275 | 1009.1368 | 2010-09-07 | An Asymptotic for the Number of Solutions to Linear Equations in Prime Numbers from Specified Chebotarev Classes | We extend known results on the number of solutions to a linear equation in at least three prime numbers when the primes involved are required to lie in specified Chebotarev classes. We prove asymptotic results similar to previous ones only now taking into account corrections coming form the Chebotarev Density Theorem a... | [
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119183629 | 1009.1329 | 2010-09-07 | High density QCD and nucleus-nucleus scattering deeply in the saturation region | In this paper we solve the equations that describe nucleus nucleus scattering, in high density QCD,in the framework of the BFKL Pomeron calculus. We found that (i) the contribution of short distances to the opacity for nucleus-nucleus scattering dies at high energies, (ii) the opacity tends to unity at high energy, and... | [
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55085502 | 1009.1423 | 2010-09-07 | Cluster galaxies in XMMU J2235-2557: galaxy population properties in most massive environments at z~1.4 | We present a multi-wavelength study of galaxy populations in the core of the massive, X-ray luminous cluster XMMU J2235 at z=1.39, based on VLT and HST optical and near-infrared photometry. Luminosity functions in the z, H, and Ks bands show a faint-end slope consistent with being flat, and a characteristic magnitude M... | [
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7448087 | 1009.1365 | 2010-09-07 | On the Ranks of the 2-Selmer Groups of Twists of a Given Elliptic Curve | We extend work of Swinnerton-Dyer on the density of the number of twists of a given elliptic curve that have 2-Selmer group of a particular rank. | [
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] | null |
118412667 | 1009.1234 | 2010-09-07 | A Framework to Simultaneously Explain Tiny Neutrino Mass and Huge Missing Mass Problem of the Universe | Recently a minimalistic scenario has been developed to explain dark matter and tiny but nonzero neutrino masses. In this scenario, a new scalar called SLIM plays the role of the dark matter. Neutrinos achieve Majorana mass through a one-loop diagram. This scenario can be realized for both real and complex SLIM. Simulta... | [
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73704359 | 1009.1256 | 2010-09-07 | Status and new operation modes of the versatile VLT/NACO | This paper aims at giving an update on the most versatile adaptive optics fed instrument to date, the well known and successful NACO . Although NACO is only scheduled for about two more years at the Very Large Telescope (VLT), it keeps on evolving with additional operation modes bringing original astronomical results. ... | [
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"author_id": "m kasper_2",
"name": "Markus Kasper",
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118580896 | 1009.1382 | 2010-09-07 | Cosmogenic Neutrinos: parameter space and detectabilty from PeV to ZeV | While propagating from their source to the observer, ultrahigh energy cosmic rays interact with cosmological photon backgrounds and generate to the so-called "cosmogenic neutrinos". Here we study the parameter space of the cosmogenic neutrino flux given recent cosmic ray data and updates on plausible source evolution m... | [
"astro-ph.HE"
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] | null | null | null |
20388724 | 1009.1370 | 2010-09-07 | Bernstein von Mises Theorems for Gaussian Regression with increasing number of regressors | This paper brings a contribution to the Bayesian theory of nonparametric and semiparametric estimation. We are interested in the asymptotic normality of the posterior distribution in Gaussian linear regression models when the number of regressors increases with the sample size. Two kinds of Bernstein-von Mises Theorems... | [
"math.ST",
"stat.TH"
] | null | [
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] | null | null | null |
55746251 | 1009.1406 | 2010-09-07 | Voids in Coupled Scalar Field Cosmology | We study the properties of voids in two different types of coupled scalar field theories. Due to the fifth force produced by the scalar field coupling, the matter particles feel stronger attraction amongst each other and cluster more quickly than they do in the standard LCDM model. Consequently voids in the coupled sca... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
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4594319 | 1009.1401 | 2010-09-07 | The High-Density Ionized Gas in the Central Parsec of the Galaxy | We report a study of the H30$\alpha$ line emission at 1.3 mm from the region around Sgr A* made with the Submillimeter Array at a resolution of 2\arcsec\ over a field of 60\arcsec\ (2 parsec) and a velocity range of -360 to +345 \kms. This field encompasses most of the Galactic center's "minispiral". With an isothermal... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4359994 | 1009.1630 | 2010-09-08 | The thermodynamic meaning of negative entropy | Landauer's erasure principle exposes an intrinsic relation between thermodynamics and information theory: the erasure of information stored in a system, S, requires an amount of work proportional to the entropy of that system. This entropy, H(S|O), depends on the information that a given observer, O, has about S, and t... | [
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117799793 | 1009.1523 | 2010-09-08 | Point symmetry group of the barotropic vorticity equation | The complete point symmetry group of the barotropic vorticity equation on the $\beta$-plane is computed using the direct method supplemented with two different techniques. The first technique is based on the preservation of any megaideal of the maximal Lie invariance algebra of a differential equation by the push-forwa... | [
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119290415 | 1009.1583 | 2010-09-08 | Gravity or Turbulence? The velocity dispersion-size relation | We discuss the nature of the velocity dispersion vs. size relation for molecular clouds. In particular, we add to previous observational results showing that the velocity dispersions in molecular clouds and cores are not purely functions of spatial scale but involve surface gas densities as well. We emphasize that hydr... | [
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] | null | [
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119162788 | 1009.1540 | 2010-09-08 | A metric Kan-Thurston theorem | For every simplicial complex X, we construct a locally CAT(0) cubical complex T_X, a cellular isometric involution i on T_X and a map t_X from T_X to X with the following properties: t_Xi = t_X; t_X is a homology isomorphism; the induced map from the quotient of T_X by the involution i to X is a homotopy equivalence; t... | [
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119286248 | 1009.1449 | 2010-09-08 | Automorphism Properties of Adinkras | Adinkras are a graphical tool for studying off-shell representations of supersymmetry. In this paper we efficiently classify the automorphism groups of Adinkras relative to a set of local parameters. Using this, we classify Adinkras according to their equivalence and isomorphism classes. We extend previous results deal... | [
"hep-th"
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118582609 | 1009.1468 | 2010-09-08 | Non-linear equation: energy conservation and impact parameter dependence | In this paper we address two questions: how energy conservation affects the solution to the non-linear equation, and how impact parameter dependence influences the inclusive production. Answering the first question we solve the modified BK equation which takes into account energy conservation. In spite of the fact that... | [
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2675082 | 1009.1627 | 2010-09-08 | Optical discovery of probable stellar tidal disruption flares | Using archival SDSS multi-epoch imaging data (Stripe 82), we have searched for the tidal disruption of stars by super-massive black holes in non-active galaxies. Two candidate tidal disruption events (TDEs) are identified. They have optical black-body temperatures 2 10^4 K and observed peak luminosities M_g=-18.3 and -... | [
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6000969 | 1009.1533 | 2010-09-08 | Sensing Matrix Optimization for Block-Sparse Decoding | Recent work has demonstrated that using a carefully designed sensing matrix rather than a random one, can improve the performance of compressed sensing. In particular, a well-designed sensing matrix can reduce the coherence between the atoms of the equivalent dictionary, and as a consequence, reduce the reconstruction ... | [
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14165553 | 1009.1658 | 2010-09-08 | The Herschel Multi-Tiered Extragalactic Survey: Source Extraction and Cross-Identifications in Confusion-Dominated SPIRE Images | We present the cross-identification and source photometry techniques used to process Herschel SPIRE imaging taken as part of the Herschel Multi-Tiered Extragalactic Survey (HerMES). Cross-identifications are performed in map-space so as to minimise source blending effects. We make use of a combination of linear inversi... | [
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29244037 | 1009.1840 | 2010-09-09 | Characterizing the Variability of Stars with Early-Release Kepler Data | We present a variability analysis of the early-release first quarter of data publicly released by the Kepler project. Using the stellar parameters from the Kepler Input Catalog, we have separated the sample into 129,000 dwarfs and 17,000 giants, and further sub-divided the luminosity classes into temperature bins corre... | [
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119026619 | 1009.1813 | 2010-09-09 | Phase Space Models of the Dwarf Spheroidal Galaxies | This paper introduces new phase-space models of dwarf spheroidal galaxies (dSphs). The stellar component has an isotropic, lowered isothermal (or King) distribution function. A physical basis for the isotropization of stellar velocities is given by tidal stirring, whilst the isothermality of the distribution function g... | [
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56362511 | 1009.1855 | 2010-09-09 | Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter | Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min energy threshold, \nobreak{$6\times 10^{19}$eV}. The anisotropy was measured by the fraction of arrival directions that are less than $3.1^\cir... | [
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... | null |
118751205 | 1009.1894 | 2010-09-09 | Removal of zero-point drift from AB data and the statistical cost | Often the result of a scientific experiment is given by the difference of measurements in two configurations, denoted by A and B. Since the measurements are not obtained simultaneously, drift of the zero-point can bias the result. In practice measurement patterns are used to minimize this bias. The time sequence AB fol... | [
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15144071 | 1009.1670 | 2010-09-09 | Convex Optimization In Identification Of Stable Non-Linear State Space Models | A new framework for nonlinear system identification is presented in terms of optimal fitting of stable nonlinear state space equations to input/output/state data, with a performance objective defined as a measure of robustness of the simulation error with respect to equation errors. Basic definitions and analytical res... | [
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119311127 | 1009.1728 | 2010-09-09 | Tail behavior of stationary solutions of random difference equations: the case of regular matrices | Given a sequence $(M_{n},Q_{n})_{n\ge 1}$ of i.i.d. random variables with generic copy $(M,Q)$ such that $M$ is a regular $d\times d$ matrix and $Q$ takes values in $\mathbb{R}^{d}$, we consider the random difference equation (RDE) $R_{n}=M_{n}R_{n-1}+Q_{n}$, $n\ge 1$. Under suitable assumptions, this equation has a un... | [
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119124612 | 1009.1879 | 2010-09-09 | The Dynamics of Dust Grains in the Outer Solar System | We study the dynamics of large dust grains >1 micron with orbits outside of the heliosphere (beyond 250 AU). Motion of the Solar System through the interstellar medium (ISM) at a velocity of 26 km/s subjects these particles to gas and Coulomb drag (grains are expected to be photoelectrically charged) as well as the Lor... | [
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15765232 | 1009.2076 | 2010-09-10 | Observation of new resonances decaying to $D\pi$ and $D^*\pi$ in inclusive $e^+e^-$ collisions near $\sqrt{s}=$10.58 GeV | We present a study of the $D^+\pi^-$, $D^0\pi^+$, and $D^{*+}\pi^-$ systems in inclusive $e^+e^- \rightarrow c\bar{c}$ interactions in a search for new excited $D$ meson states. We use a dataset, consisting of $\sim$454 fb$^{-1}$, collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP... | [
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10538752 | 1009.2108 | 2010-09-10 | Path sampling for particle filters with application to multi-target tracking | In recent work (arXiv:1006.3100v1), we have presented a novel approach for improving particle filters for multi-target tracking. The suggested approach was based on drift homotopy for stochastic differential equations. Drift homotopy was used to design a Markov Chain Monte Carlo step which is appended to the particle f... | [
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14614144 | 1009.2065 | 2010-09-10 | Templates for Convex Cone Problems with Applications to Sparse Signal Recovery | This paper develops a general framework for solving a variety of convex cone problems that frequently arise in signal processing, machine learning, statistics, and other fields. The approach works as follows: first, determine a conic formulation of the problem; second, determine its dual; third, apply smoothing; and fo... | [
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40712123 | 1009.2093 | 2010-09-10 | The Effective Field Theory of Multifield Inflation | We generalize the Effective Field Theory of Inflation to include additional light scalar degrees of freedom that are in their vacuum at the time the modes of interest are crossing the horizon. In order to make the scalars light in a natural way we consider the case where they are the Goldstone bosons of a global symmet... | [
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28219978 | 1009.2081 | 2010-09-10 | Quasar Selection Based on Photometric Variability | We develop a method for separating quasars from other variable point sources using SDSS Stripe 82 light curve data for ~10,000 variable objects. To statistically describe quasar variability, we use a damped random walk model parametrized by a damping time scale, tau, and an asymptotic amplitude (structure function), SF... | [
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14491408 | 1009.2041 | 2010-09-10 | Multi-Agent Only-Knowing Revisited | Levesque introduced the notion of only-knowing to precisely capture the beliefs of a knowledge base. He also showed how only-knowing can be used to formalize non-monotonic behavior within a monotonic logic. Despite its appeal, all attempts to extend only-knowing to the many agent case have undesirable properties. A bel... | [
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17760173 | 1009.1984 | 2010-09-10 | Plasma internal inductance dynamics in a tokamak | A lumped parameter model for tokamak plasma current and inductance time evolution as function of plasma resistance, non-inductive current drive sources and boundary voltage or poloidal field (PF) coil current drive is presented. The model includes a novel formulation leading to exact equations for internal inductance a... | [
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2418897 | 1009.2118 | 2010-09-10 | Restricted strong convexity and weighted matrix completion: Optimal bounds with noise | We consider the matrix completion problem under a form of row/column weighted entrywise sampling, including the case of uniform entrywise sampling as a special case. We analyze the associated random observation operator, and prove that with high probability, it satisfies a form of restricted strong convexity with respe... | [
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205681 | 1009.2009 | 2010-09-10 | Hierarchical Semi-Markov Conditional Random Fields for Recursive Sequential Data | Inspired by the hierarchical hidden Markov models (HHMM), we present the hierarchical semi-Markov conditional random field (HSCRF), a generalisation of embedded undirectedMarkov chains tomodel complex hierarchical, nestedMarkov processes. It is parameterised in a discriminative framework and has polynomial time algorit... | [
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88518363 | 1009.2048 | 2010-09-10 | Challenging the empirical mean and empirical variance: a deviation study | We present new M-estimators of the mean and variance of real valued random variables, based on PAC-Bayes bounds. We analyze the non-asymptotic minimax properties of the deviations of those estimators for sample distributions having either a bounded variance or a bounded variance and a bounded kurtosis. Under those weak... | [
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862382 | 1009.2168 | 2010-09-11 | Random G-expectations | We construct a time-consistent sublinear expectation in the setting of volatility uncertainty. This mapping extends Peng's G-expectation by allowing the range of the volatility uncertainty to be stochastic. Our construction is purely probabilistic and based on an optimal control formulation with path-dependent control ... | [
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679026 | 1009.2139 | 2010-09-11 | Proximal Methods for Hierarchical Sparse Coding | Sparse coding consists in representing signals as sparse linear combinations of atoms selected from a dictionary. We consider an extension of this framework where the atoms are further assumed to be embedded in a tree. This is achieved using a recently introduced tree-structured sparse regularization norm, which has pr... | [
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118750830 | 1009.2145 | 2010-09-11 | Observed Polarization of Brown Dwarfs Suggests Low Surface Gravity | Light scattering by atmospheric dust particles is responsible for the polarization observed in some L dwarfs. Whether this polarization arises from an inhomogeneous distribution of dust across the disk or an oblate shape induced by rotation remains unclear. Here we argue that the latter case is plausible and, for many ... | [
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735 | 1009.2275 | 2010-09-12 | PhishDef: URL Names Say It All | Phishing is an increasingly sophisticated method to steal personal user information using sites that pretend to be legitimate. In this paper, we take the following steps to identify phishing URLs. First, we carefully select lexical features of the URLs that are resistant to obfuscation techniques used by attackers. Sec... | [
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266757726 | 1009.2260 | 2010-09-12 | Computing the confidence levels for a root-mean-square test of goodness-of-fit, II | This paper extends our earlier article, "Computing the confidence levels for a root-mean-square test of goodness-of-fit;" unlike in the earlier article, the models in the present paper involve parameter estimation -- both the null and alternative hypotheses in the associated tests are composite. We provide efficient bl... | [
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3145402 | 1009.2221 | 2010-09-12 | Performance Bounds and Design Criteria for Estimating Finite Rate of Innovation Signals | In this paper, we consider the problem of estimating finite rate of innovation (FRI) signals from noisy measurements, and specifically analyze the interaction between FRI techniques and the underlying sampling methods. We first obtain a fundamental limit on the estimation accuracy attainable regardless of the sampling ... | [
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5222729 | 1009.2376 | 2010-09-13 | Graphons, cut norm and distance, couplings and rearrangements | We give a survey of basic results on the cut norm and cut metric for graphons (and sometimes more general kernels), with emphasis on the equivalence problem. The main results are not new, but we add various technical complements, and a new proof of the uniqueness theorem by Borgs, Chayes and Lov\'asz. We allow graphons... | [
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41842822 | 1009.2490 | 2010-09-13 | Position-Based Quantum Cryptography: Impossibility and Constructions | In this work, we study position-based cryptography in the quantum setting. The aim is to use the geographical position of a party as its only credential. On the negative side, we show that if adversaries are allowed to share an arbitrarily large entangled quantum state, no secure position-verification is possible at al... | [
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1771377 | 1009.2556 | 2010-09-13 | Securing Dynamic Distributed Storage Systems against Eavesdropping and Adversarial Attacks | We address the problem of securing distributed storage systems against eavesdropping and adversarial attacks. An important aspect of these systems is node failures over time, necessitating, thus, a repair mechanism in order to maintain a desired high system reliability. In such dynamic settings, an important security p... | [
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15710718 | 1009.2300 | 2010-09-13 | Bayesian Adaptive Lasso | We propose the Bayesian adaptive Lasso (BaLasso) for variable selection and coefficient estimation in linear regression. The BaLasso is adaptive to the signal level by adopting different shrinkage for different coefficients. Furthermore, we provide a model selection machinery for the BaLasso by assessing the posterior ... | [
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14681115 | 1009.2274 | 2010-09-13 | Robust Beamforming for Security in MIMO Wiretap Channels with Imperfect CSI | In this paper, we investigate methods for reducing the likelihood that a message transmitted between two multiantenna nodes is intercepted by an undetected eavesdropper. In particular, we focus on the judicious transmission of artificial interference to mask the desired signal at the time it is broadcast. Unlike previo... | [
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18835609 | 1009.2439 | 2010-09-13 | Von Neumann Entropy Penalization and Low Rank Matrix Estimation | A problem of statistical estimation of a Hermitian nonnegatively definite matrix of unit trace (for instance, a density matrix in quantum state tomography) is studied. The approach is based on penalized least squares method with a complexity penalty defined in terms of von Neumann entropy. A number of oracle inequaliti... | [
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119277475 | 1009.2450 | 2010-09-13 | Single-top Wt-channel production matched with parton showers using the POWHEG method | We present results for the next-to-leading order calculation of single-top Wt-channel production interfaced to Shower Monte Carlo programs, implemented according to the POWHEG method. A comparison with MC@NLO is carried out. Results obtained using the PYTHIA shower are also shown and the effect of typical cuts is brief... | [
"hep-ph"
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43867595 | 1009.2302 | 2010-09-13 | The Predictive Lasso | We propose a shrinkage procedure for simultaneous variable selection and estimation in generalized linear models (GLMs) with an explicit predictive motivation. The procedure estimates the coefficients by minimizing the Kullback-Leibler divergence of a set of predictive distributions to the corresponding predictive dist... | [
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55605155 | 1009.2381 | 2010-09-13 | Outburst activity in comets: II. A multi-band photometric monitoring of comet 29p/Schwassmann-Wachmann 1 | We have carried out a continuous multi-band photometric monitoring of the nuclear activity of comet 29P/Schwassmann-Wachmann 1 from 2008 to 2010. Our main aim has been to study the outburst mechanism on the basis of a follow-up of the photometric variations associated with the release of dust. We used a standardized me... | [
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16376745 | 1009.2655 | 2010-09-14 | Einstein-Podolsky-Rosen Correlations of Ultracold Atomic Gases | Einstein, Podolsky & Rosen (EPR) pointed out that correlations induced between quantum objects will persist after these objects have ceased to interact. Consequently, their joint continuous variables (CV), e.g., the difference of their positions and the sum of their momenta, may be specified, regardless of their distan... | [
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28552996 | 1009.2782 | 2010-09-14 | Small-time asymptotics for fast mean-reverting stochastic volatility models | In this paper, we study stochastic volatility models in regimes where the maturity is small, but large compared to the mean-reversion time of the stochastic volatility factor. The problem falls in the class of averaging/homogenization problems for nonlinear HJB-type equations where the "fast variable" lives in a noncom... | [
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2971882 | 1009.2651 | 2010-09-14 | Left-Inverses of Fractional Laplacian and Sparse Stochastic Processes | The fractional Laplacian $(-\triangle)^{\gamma/2}$ commutes with the primary coordination transformations in the Euclidean space $\RR^d$: dilation, translation and rotation, and has tight link to splines, fractals and stable Levy processes. For $0<\gamma<d$, its inverse is the classical Riesz potential $I_\gamma$ which... | [
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11725785 | 1009.2707 | 2010-09-14 | Pac-bayesian bounds for sparse regression estimation with exponential weights | We consider the sparse regression model where the number of parameters $p$ is larger than the sample size $n$. The difficulty when considering high-dimensional problems is to propose estimators achieving a good compromise between statistical and computational performances. The BIC estimator for instance performs well f... | [
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... | null |
5554884 | 1009.2653 | 2010-09-14 | Opinion fluctuations and disagreement in social networks | We study a tractable opinion dynamics model that generates long-run disagreements and persistent opinion fluctuations. Our model involves an inhomogeneous stochastic gossip process of continuous opinion dynamics in a society consisting of two types of agents: regular agents, who update their beliefs according to inform... | [
"cs.SI",
"cs.SY",
"math.OC",
"math.PR"
] | null | [
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{
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{
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{
"author_id": "g como_1",
"name": "Giacomo Como",
"publication_history": null,
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... | null |
2301243 | 1009.2637 | 2010-09-14 | Sectional Curvature in terms of the Cometric, with Applications to the Riemannian Manifolds of Landmarks | This paper deals with the computation of sectional curvature for the manifolds of $N$ landmarks (or feature points) in D dimensions, endowed with the Riemannian metric induced by the group action of diffeomorphisms. The inverse of the metric tensor for these manifolds (i.e. the cometric), when written in coordinates, i... | [
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2698078 | 1009.2722 | 2010-09-14 | Learning Latent Tree Graphical Models | We study the problem of learning a latent tree graphical model where samples are available only from a subset of variables. We propose two consistent and computationally efficient algorithms for learning minimal latent trees, that is, trees without any redundant hidden nodes. Unlike many existing methods, the observed ... | [
"stat.ML",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119679559 | 1009.2771 | 2010-09-14 | Fokker-Planck Asymptotics for Traffic Flow Models | Starting from microscopic interaction rules we derive kinetic models of Fokker--Planck type for vehicular traffic flow. The derivation is based on taking a suitable asymptotic limit of the corresponding Boltzmann model. As particular cases, the derived models comprise existing models. New Fokker--Planck models are also... | [
"math-ph",
"cond-mat.stat-mech",
"math.MP",
"physics.soc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m herty_1",
"name": "Michael Herty",
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},
{
"author_id": "l pareschi_1",
"name": "Lorenzo Pareschi",
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"h_index": null,
"num_papers": null,... | null |
118596420 | 1009.2702 | 2010-09-14 | An Atomic Gravitational Wave Interferometric Sensor in Low Earth Orbit (AGIS-LEO) | We propose an atom interferometer gravitational wave detector in low Earth orbit (AGIS-LEO). Gravitational waves can be observed by comparing a pair of atom interferometers separated over a ~30 km baseline. In the proposed configuration, one or three of these interferometer pairs are simultaneously operated through the... | [
"physics.atom-ph",
"astro-ph.IM",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4418631 | 1009.2770 | 2010-09-14 | Formation of asteroid pairs by rotational fission | Asteroid pairs sharing similar heliocentric orbits were found recently. Backward integrations of their orbits indicated that they separated gently with low relative velocities, but did not provide additional insight into their formation mechanism. A previously hypothesized rotational fission process4 may explain their ... | [
"astro-ph.EP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53522670 | 1009.2571 | 2010-09-14 | Entanglement, discord and the power of quantum computation | We show that the ability to create entanglement is necessary for execution of bipartite quantum gates even when they are applied to unentangled states and create no entanglement. Starting with a simple example we demonstrate that to execute such a gate bi-locally the local operations and classical communications (LOCC)... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a brodutch_1",
"name": "Aharon Brodutch",
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{
"author_id": "d terno_1",
"name": "Daniel [\"R.\"] Terno",
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"num_papers"... | null |
1353568 | 1009.2617 | 2010-09-14 | Understanding Fashion Cycles as a Social Choice | We present a formal model for studying fashion trends, in terms of three parameters of fashionable items: (1) their innate utility; (2) individual boredom associated with repeated usage of an item; and (3) social influences associated with the preferences from other people. While there are several works that emphasize ... | [
"cs.GT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a sarma_5",
"name": "Anish [\"Das\"] Sarma",
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{
"author_id": "s gollapudi_1",
"name": "Sreenivas Gollapudi",
"publication_history": null,
"h_index": null,
"num_pa... | null |
197442251 | 1009.2731 | 2010-09-14 | Measurement of sigma(pp -> b anti-b X) at \sqrt(s)=7 TeV in the forward region | Decays of b hadrons into final states containing a D0 meson and a muon are used to measure the b anti-b production cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. In the pseudorapidity interval 2 < eta < 6 and integrated over all transverse momenta we find that the average cros... | [
"hep-ex",
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r aaij_1",
"name": "R. Aaij",
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},
{
"author_id": "s bachmann_3",
"name": "Sebastian Bachmann",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
7819989 | 1009.2823 | 2010-09-14 | Theory and applications of lattice point methods for binomial ideals | This survey of methods surrounding lattice point methods for binomial ideals begins with a leisurely treatment of the geometric combinatorics of binomial primary decomposition. It then proceeds to three independent applications whose motivations come from outside of commutative algebra: hypergeometric systems, combinat... | [
"math.AC",
"cs.GT",
"math.CO",
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
30425562 | 1009.2766 | 2010-09-14 | Bayesian inference of stellar parameters and interstellar extinction using parallaxes and multiband photometry | Astrometric surveys provide the opportunity to measure the absolute magnitudes of large numbers of stars, but only if the individual line-of-sight extinctions are known. Unfortunately, extinction is highly degenerate with stellar effective temperature when estimated from broad band optical/infrared photometry. To addre... | [
"astro-ph.IM",
"astro-ph.GA",
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6555656 | 1009.2757 | 2010-09-14 | Implicit-explicit Runge-Kutta schemes and applications to hyperbolic systems with relaxation | We consider new implicit-explicit (IMEX) Runge-Kutta methods for hyperbolic systems of conservation laws with stiff relaxation terms. The explicit part is treated by a strong-stability-preserving (SSP) scheme, and the implicit part is treated by an L-stable diagonally implicit Runge-Kutta methods (DIRK). The schemes pr... | [
"math.NA",
"physics.comp-ph",
"physics.flu-dyn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l pareschi_1",
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{
"author_id": "g russo_3",
"name": "Giovanni Russo",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
54947826 | 1009.2943 | 2010-09-15 | Multiscale Modelling and Inverse Problems | The need to blend observational data and mathematical models arises in many applications and leads naturally to inverse problems. Parameters appearing in the model, such as constitutive tensors, initial conditions, boundary conditions, and forcing can be estimated on the basis of observed data. The resulting inverse pr... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "1557450",
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] | [
{
"author_id": "j nolen_1",
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},
{
"author_id": "g pavliotis_1",
"name": "Grigorios [\"A.\"] Pavliotis",
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"h_index": null,
"num_pap... | null |
119271591 | 1009.2894 | 2010-09-15 | Scaling relations for the entire spectrum in mass-deformed conformal gauge theories | We consider mass-deformed conformal gauge theories (mCGT) and investigate the scaling behaviour of hadronic observables as a function of the fermion mass. Applying renormalization group arguments directly to matrix elements, we find m_H ~ m^{1/(1+gamma*)} and F ~ m^{\eta_F(gamma*)} for the decay constants, thereby gene... | [
"hep-ph",
"hep-lat",
"hep-th"
] | null | [
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{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
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{
"author_id": "r zwicky_1",
"name": "Roman Zwicky",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
118784069 | 1009.2959 | 2010-09-15 | Reconciling thermal leptogenesis with the gravitino problem in SUSY models with mixed axion/axino dark matter | Successful implementation of thermal leptogenesis requires re-heat temperatures T_R\agt 2\times 10^9 GeV, in apparent conflict with SUSY models with TeV-scale gravitinos, which require much lower T_R in order to avoid Big Bang Nucleosynthesis (BBN) constraints. We show that mixed axion/axino dark matter can reconcile t... | [
"hep-ph",
"astro-ph.HE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "h baer_1",
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{
"author_id": "s kraml_1",
"name": "Sabine Kraml",
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"num_papers": null,
"num_... | null |
14479109 | 1009.3047 | 2010-09-15 | Improved Search for a Higgs Boson Produced in Association with Z->l+l- in proton antiproton Collisions at sqrt(s) = 1.96 TeV | We present a search for the standard model Higgs boson produced with a Z boson in 4.1 fb^-1 of data collected with the CDF II detector at the Tevatron. In events consistent with the decay of the Higgs boson to a bottom-quark pair and the Z boson to electrons or muons, we set 95% credibility level upper limits on the ZH... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t aaltonen_1",
"name": "T. Aaltonen",
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{
"author_id": "b gonzalez_1",
"name": "B. [\"Alvarez\"] Gonzalez",
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"h_index": null,
"num_pape... | null |
5778347 | 1009.2997 | 2010-09-15 | Sensor Scheduling for Energy-Efficient Target Tracking in Sensor Networks | In this paper we study the problem of tracking an object moving randomly through a network of wireless sensors. Our objective is to devise strategies for scheduling the sensors to optimize the tradeoff between tracking performance and energy consumption. We cast the scheduling problem as a Partially Observable Markov D... | [
"cs.MA"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "g atia_1",
"name": "George [\"K.\"] Atia",
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"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "v veeravalli_1",
"name": "Venugopal [\"V.\"] Veeravalli",
"publication_history": null,
"h_index": null,
... | null |
119269198 | 1009.3021 | 2010-09-15 | General Relativistic Description of the Observed Galaxy Power Spectrum: Do We Understand What We Measure? | We extend the general relativistic description of galaxy clustering developed in Yoo, Fitzpatrick, and Zaldarriaga (2009). For the first time we provide a fully general relativistic description of the observed matter power spectrum and the observed galaxy power spectrum with the linear bias ansatz. It is significantly ... | [
"astro-ph.CO",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6481815 | 1009.2955 | 2010-09-15 | Throughput Analysis of Buffer-Constrained Wireless Systems in the Finite Blocklength Regime | In this paper, wireless systems operating under queueing constraints in the form of limitations on the buffer violation probabilities are considered. The throughput under such constraints is captured by the effective capacity formulation. It is assumed that finite blocklength codes are employed for transmission. Under ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m gursoy_2",
"name": "Mustafa [\"Cenk\"] Gursoy",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
8042354 | 1009.3029 | 2010-09-15 | Invariant Spectral Hashing of Image Saliency Graph | Image hashing is the process of associating a short vector of bits to an image. The resulting summaries are useful in many applications including image indexing, image authentication and pattern recognition. These hashes need to be invariant under transformations of the image that result in similar visual content, but ... | [
"cs.CV"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m taquet_0",
"name": "Maxime Taquet",
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"h_index": null,
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},
{
"author_id": "l jacques_1",
"name": "Laurent Jacques",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
9476290 | 1009.3059 | 2010-09-15 | Stability of spontaneous quantum Hall state in the Triangular Kondo-lattice model | We study the behavior of the quarter-filled Kondo lattice model on a triangular lattice by combining a zero-temperature variational approach and finite-temperature Monte-Carlo simulations. For intermediate coupling between itinerant electrons and classical moments ${\bf S}_j$, we find a thermodynamic phase transition i... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
15802911 | 1009.2855 | 2010-09-15 | An analytically tractable model of neural population activity in the presence of common input explains higher-order correlations and entropy | Simultaneously recorded neurons exhibit correlations whose underlying causes are not known. Here, we use a population of threshold neurons receiving correlated inputs to model neural population recordings. We show analytically that small changes in second-order correlations can lead to large changes in higher correlati... | [
"q-bio.NC",
"cond-mat.dis-nn",
"physics.data-an"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j macke_1",
"name": "Jakob [\"H.\"] Macke",
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},
{
"author_id": "m opper_2",
"name": "Manfred Opper",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
14228433 | 1009.3167 | 2010-09-15 | Sensor Management for Tracking in Sensor Networks | We study the problem of tracking an object moving through a network of wireless sensors. In order to conserve energy, the sensors may be put into a sleep mode with a timer that determines their sleep duration. It is assumed that an asleep sensor cannot be communicated with or woken up, and hence the sleep duration need... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j fuemmeler_1",
"name": "Jason [\"A.\"] Fuemmeler",
"publication_history": null,
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},
{
"author_id": "g atia_1",
"name": "George [\"K.\"] Atia",
"publication_history": null,
"h_index": null,
"num... | null |
119233443 | 1009.3017 | 2010-09-15 | Symmetries of Abelian Orbifolds | Using the Polya Enumeration Theorem, we count with particular attention to C^3/Gamma up to C^6/Gamma, abelian orbifolds in various dimensions which are invariant under cycles of the permutation group S_D. This produces a collection of multiplicative sequences, one for each cycle in the Cycle Index of the permutation gr... | [
"hep-th"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "119092532",
"num_citations": null
},
{
"corpus_id": "118356433",
"num_citations": null
}
] | [
{
"author_id": "a hanany_1",
"name": "Amihay Hanany",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r seong_1",
"name": "Rak-Kyeong Seong",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119026787 | 1009.2951 | 2010-09-15 | Micro-Sigmoids as Progenitors of Polar Coronal Jets | Observations from the Hinode X-ray telescope (XRT) are used to study the structure of X-ray bright points (XBPs), sources of coronal jets. Several jet events are found to erupt from S-shaped bright points, suggesting that coronal micro-sigmoids are progenitors of the jets. The observations may help to explain numerous ... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n raouafi_1",
"name": "Noureddine Raouafi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p bernasconi_1",
"name": "Pietro Bernasconi",
"publication_history": null,
"h_index": null,
"num_pape... | null |
8751253 | 1009.3145 | 2010-09-16 | Universal Rate-Efficient Scalar Quantization | Scalar quantization is the most practical and straightforward approach to signal quantization. However, it has been shown that scalar quantization of oversampled or Compressively Sensed signals can be inefficient in terms of the rate-distortion trade-off, especially as the oversampling rate or the sparsity of the signa... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "p boufounos_1",
"name": "Petros [\"T.\"] Boufounos",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
1583578 | 1009.3253 | 2010-09-16 | Transmission Strategies in Multiple Access Fading Channels with Statistical QoS Constraints | Effective capacity, which provides the maximum constant arrival rate that a given service process can support while satisfying statistical delay constraints, is analyzed in a multiuser scenario. In particular, the effective capacity region of fading multiple access channels (MAC) in the presence of quality of service (... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d qiao_4",
"name": "Deli Qiao",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m gursoy_2",
"name": "Mustafa [\"Cenk\"] Gursoy",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
51084520 | 1009.3071 | 2010-09-16 | Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity | First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1 {\mu}m and are punctuated by molecular absorption features. We co... | [
"astro-ph.EP",
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2202016 | 1009.3217 | 2010-09-16 | The Complexity of Rerouting Shortest Paths | The Shortest Path Reconfiguration problem has as input a graph G (with unit edge lengths) with vertices s and t, and two shortest st-paths P and Q. The question is whether there exists a sequence of shortest st-paths that starts with P and ends with Q, such that subsequent paths differ in only one vertex. This is calle... | [
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119280343 | 1009.3182 | 2010-09-16 | Precision cosmology with a wide area XMM cluster survey | We explore the cosmological constraints expected from wide area XMM-type cluster surveys covering 50-200 deg2, under realistic observing conditions. We perform a Fisher matrix analysis based on cluster number counts in combination with estimates of the 2-point cluster correlation function. The effect of the survey desi... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16588435 | 1009.3240 | 2010-09-16 | A Unified View of Regularized Dual Averaging and Mirror Descent with Implicit Updates | We study three families of online convex optimization algorithms: follow-the-proximally-regularized-leader (FTRL-Proximal), regularized dual averaging (RDA), and composite-objective mirror descent. We first prove equivalence theorems that show all of these algorithms are instantiations of a general FTRL update. This pr... | [
"cs.LG"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "13318811",
"num_citations": null
}
] | [
{
"author_id": "h mcmahan_1",
"name": "H. [\"B.\"] McMahan",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
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