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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119119820 | 1004.0876 | 2010-04-06 | Next-to-leading order QCD corrections to a heavy resonance production and decay into top quark pair at the LHC | We present a complete next-to-leading order (NLO) QCD calculation to a heavy resonance production and decay into a top quark pair at the LHC, where the resonance could be either a Randall-Sundrum (RS) Kaluza-Klein (KK) graviton $G$ or an extra gauge boson $Z'$. The complete NLO QCD corrections can enhance the total cro... | [
"hep-ph"
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3265638 | 1004.0897 | 2010-04-06 | Energy Efficiency Analysis in Amplify-and-Forward and Decode-and-Forward Cooperative Networks | In this paper, we have studied the energy efficiency of cooperative networks operating in either the fixed Amplifyand- Forward (AF) or the selective Decode-and-Forward (DF) mode. We consider the optimization of the M-ary quadrature amplitude modulation (MQAM) constellation size to minimize the bit energy consumption un... | [
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"name": "Mustafa [\"Cenk\"] Gursoy",
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1428732 | 1004.0914 | 2010-04-06 | Collaborative Relay Beamforming for Secure Broadcasting | In this paper, collaborative use of relays to form a beamforming system with the aid of perfect channel state information (CSI) and to provide communication in physicallayer security between a transmitter and two receivers is investigated. In particular, we describe decode-and-forward based null space beamforming schem... | [
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"name": "Mustafa [\"Cenk\"] Gursoy",
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16206819 | 1004.0907 | 2010-04-06 | QoS Analysis of Cognitive Radio Channels with Perfect CSI at both Receiver and Transmitter | In this paper, cognitive transmission under quality of service (QoS) constraints is studied. In the cognitive radio channel model, it is assumed that both the secondary receiver and the secondary transmitter know the channel fading coefficients perfectly and optimize the power adaptation policy under given constraints,... | [
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"name": "Mustafa [\"Cenk\"] Gursoy",
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119290443 | 1004.0949 | 2010-04-06 | Spitzer SAGE-SMC Infrared Photometry of Massive Stars in the Small Magellanic Cloud | We present a catalog of 5324 massive stars in the Small Magellanic Cloud (SMC), with accurate spectral types compiled from the literature, and a photometric catalog for a subset of 3654 of these stars, with the goal of exploring their infrared properties. The photometric catalog consists of stars with infrared counterp... | [
"astro-ph.SR"
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8895388 | 1004.0930 | 2010-04-06 | Spying the World from your Laptop -- Identifying and Profiling Content Providers and Big Downloaders in BitTorrent | This paper presents a set of exploits an adversary can use to continuously spy on most BitTorrent users of the Internet from a single machine and for a long period of time. Using these exploits for a period of 103 days, we collected 148 million IPs downloading 2 billion copies of contents. We identify the IP address of... | [
"cs.NI"
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"author_id": "a legout_1",
"name": "Arnaud Legout",
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116180701 | 1004.0887 | 2010-04-06 | A pruned dynamic programming algorithm to recover the best segmentations with $1$ to $K_{max}$ change-points | A common computational problem in multiple change-point models is to recover the segmentations with $1$ to $K_{max}$ change-points of minimal cost with respect to some loss function. Here we present an algorithm to prune the set of candidate change-points which is based on a functional representation of the cost of seg... | [
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119231487 | 1004.0901 | 2010-04-06 | Unveiling the origin of X-ray flares in Gamma-Ray Bursts | We present an updated catalog of 113 X-ray flares detected by Swift in the ~33% of the X-ray afterglows of Gamma-Ray Bursts (GRB). 43 flares have a measured redshift. For the first time the analysis is performed in 4 different X-ray energy bands, allowing us to constrain the evolution of the flare temporal properties w... | [
"astro-ph.HE"
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73585455 | 1004.0790 | 2010-04-06 | Observation of the full 12-hour-long transit of the exoplanet HD80606b. Warm-Spitzer photometry and SOPHIE spectroscopy | We present new observations of a transit of the 111-day-period exoplanet HD80606b. Using the Spitzer Space Telescope and its IRAC camera on the post-cryogenic mission, we performed a 19-hour-long photometric observation of HD80606 that covers the full transit of 13-14 January 2010. We complement this photometric data b... | [
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119258503 | 1004.0963 | 2010-04-06 | Stellar Populations of Lyman Alpha Emitters at z~6-7: Constraints on the Escape Fraction of Ionizing Photons from Galaxy Building Blocks | We investigate the stellar populations of Lyman alpha emitters (LAEs) at z=5.7 and 6.6 in a 0.65 deg^2 sky of the Subaru/XMM-Newton Deep Survey (SXDS) Field, using deep images taken with Subaru/Suprime-Cam, UKIRT/WFCAM, and Spitzer/IRAC. We produce stacked multiband images at each redshift from 165 (z=5.7) and 91 (z=6.... | [
"astro-ph.CO"
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21558623 | 1004.0780 | 2010-04-06 | Ultrasensitive force and displacement detection using trapped ions | The ability to detect extremely small forces is vital for a variety of disciplines including precision spin-resonance imaging, microscopy, and tests of fundamental physical phenomena. Current force-detection sensitivity limits have surpassed 1 $aN/\sqrt{Hz}$ (atto $=10^{-18}$) through coupling of micro or nanofabricate... | [
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"name": "Hermann Uys",
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18197738 | 1004.0892 | 2010-04-06 | Secure Broadcasting over Fading Channels with Statistical QoS Constraints | In this paper, the fading broadcast channel with confidential messages is studied in the presence of statistical quality of service (QoS) constraints in the form of limitations on the buffer length. We employ the effective capacity formulation to measure the throughput of the confidential and common messages. We assume... | [
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"name": "Mustafa [\"Cenk\"] Gursoy",
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10214950 | 1004.1195 | 2010-04-07 | Ergodic Capacity Analysis in Cognitive Radio Systems under Channel Uncertainty | In this paper, pilot-symbol-assisted transmission in cognitive radio systems over time selective flat fading channels is studied. It is assumed that causal and noncausal Wiener filter estimators are used at the secondary receiver with the aid of training symbols to obtain the channel side information (CSI) under an int... | [
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12947712 | 1004.1220 | 2010-04-07 | Relaxation-based coarsening and multiscale graph organization | In this paper we generalize and improve the multiscale organization of graphs by introducing a new measure that quantifies the "closeness" between two nodes. The calculation of the measure is linear in the number of edges in the graph and involves just a small number of relaxation sweeps. A similar notion of distance i... | [
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"target.key_reference"
] | null | null | null |
88518423 | 1004.1112 | 2010-04-07 | Constructing Summary Statistics for Approximate Bayesian Computation: Semi-automatic ABC | Many modern statistical applications involve inference for complex stochastic models, where it is easy to simulate from the models, but impossible to calculate likelihoods. Approximate Bayesian computation (ABC) is a method of inference for such models. It replaces calculation of the likelihood by a step which involves... | [
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"author_id": "d prangle_1",
"name": "Dennis Prangle",
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115181714 | 1004.1172 | 2010-04-07 | On the Physics of the Riemann Zeros | We discuss a formal derivation of an integral expression for the Li coefficients associated with the Riemann xi-function which, in particular, indicates that their positivity criterion is obeyed, whereby entailing the criticality of the non-trivial zeros. We conjecture the validity of this and related expressions witho... | [
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"name": "Vishnu Jejjala",
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118609076 | 1004.1004 | 2010-04-07 | Conformal or Walking? Monte Carlo renormalization group studies of SU(3) gauge models with fundamental fermions | Strongly coupled gauge systems with many fermions are important in many phenomenological models. I use the 2-lattice matching Monte Carlo renormalization group method to study the fixed point structure and critical indexes of SU(3) gauge models with 8 and 12 flavors of fundamental fermions. With an improved renormaliza... | [
"hep-lat",
"hep-ph"
] | null | [
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115162541 | 1004.1192 | 2010-04-07 | Random continued fractions with beta hypergeometric distribution | In a recent paper (Asci \textit{et al.}, 2008) it has been shown that certain random continued fractions have a density which is a product of a beta density and a hypergeometric function $_{2}F_{1}$. In the present paper we fully exploit a formula due to Thomae (1879) in order to generalize substantially the class of r... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
33944054 | 1004.0998 | 2010-04-07 | Methods for Reducing False Alarms in Searches for Compact Binary Coalescences in LIGO Data | The LIGO detectors are sensitive to a variety of noise transients of non-astrophysical origin. Instrumental glitches and environmental disturbances increase the false alarm rate in the searches for gravitational waves. Using times already identified when the interferometers produced data of questionable quality, or whe... | [
"gr-qc"
] | null | [
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{
"author_id": "j slutsky_1",
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"author_id": "l blackburn_1",
"name": "Lindy [\"L.\"] Blackburn",
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118367130 | 1004.1167 | 2010-04-07 | The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release | We present the fifth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog, which is based upon the SDSS Seventh Data Release. The catalog, which contains 105,783 spectroscopically confirmed quasars, represents the conclusion of the SDSS-I and SDSS-II quasar survey. The catalog consists of the SDSS objects that... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53409687 | 1004.1102 | 2010-04-07 | Diffusing opinions in bounded confidence processes | We study the effects of diffusing opinions on the Deffuant et al. model for continuous opinion dynamics. Individuals are given the opportunity to change their opinion, with a given probability, to a randomly selected opinion inside an interval centered around the present opinion. We show that diffusion induces an order... | [
"physics.soc-ph",
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{
"author_id": "m pineda_1",
"name": "Miguel Pineda",
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{
"author_id": "r toral_1",
"name": "Raúl Toral",
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41092939 | 1004.1183 | 2010-04-07 | Phylogenetic toric varieties on graphs | We define phylogenetic projective toric model of a trivalent graph as a generalization of a binary symmetric model of a trivalent phylogenetic tree. Generators of the pro- jective coordinate ring of the models of graphs with one cycle are explicitly described. The phylogenetic models of graphs with the same topological... | [
"math.AG"
] | null | [
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] | null | null | null |
6965205 | 1004.1447 | 2010-04-08 | The Total s-Energy of a Multiagent System | We introduce the "total s-energy" of a multiagent system with time-dependent links. This provides a new analytical lens on bidirectional agreement dynamics, which we use to bound the convergence rates of dynamical systems for synchronization, flocking, opinion dynamics, and social epistemology. | [
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13499303 | 1004.1267 | 2010-04-08 | De-anonymizing BitTorrent Users on Tor | Some BitTorrent users are running BitTorrent on top of Tor to preserve their privacy. In this extended abstract, we discuss three different attacks to reveal the IP address of BitTorrent users on top of Tor. In addition, we exploit the multiplexing of streams from different applications into the same circuit to link no... | [
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"cs.CR"
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{
"author_id": "s blond_1",
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"author_id": "p manils_1",
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8595452 | 1004.1361 | 2010-04-08 | On the Gaussian approximation for master equations | We analyze the Gaussian approximation as a method to obtain the first and second moments of a stochastic process described by a master equation. We justify the use of this approximation with ideas coming from van Kampen's expansion approach (the fact that the probability distribution is Gaussian at first order). We ana... | [
"cond-mat.stat-mech"
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{
"author_id": "l lafuerza_1",
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"author_id": "r toral_1",
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425990 | 1004.1449 | 2010-04-08 | Multi-Unit Auctions: Beyond Roberts | We exhibit incentive compatible multi-unit auctions that are not affine maximizers (i.e., are not of the VCG family) and yet approximate the social welfare to within a factor of $1+\epsilon$. For the case of two-item two-bidder auctions we show that these auctions, termed Triage auctions, are the only scalable ones tha... | [
"cs.GT"
] | null | [
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] | null | null | null |
55304092 | 1004.1433 | 2010-04-08 | New Class of 4-Dim Kochen-Specker Sets | We find a new highly symmetrical and very numerous class (millions of non-isomorphic sets) of 4-dim Kochen-Specker (KS) vector sets. Due to the nature of their geometrical symmetries, they cannot be obtained from previously known ones. We generate the sets from a single set of 60 orthogonal spin vectors and 75 of their... | [
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{
"author_id": "m pavičić_1",
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"author_id": "n megill_1",
"name": "Norman [\"D.\"] Megill",
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1008664 | 1004.1423 | 2010-04-08 | Strong Secrecy and Reliable Byzantine Detection in the Presence of an Untrusted Relay | We consider a Gaussian two-hop network where the source and the destination can communicate only via a relay node who is both an eavesdropper and a Byzantine adversary. Both the source and the destination nodes are allowed to transmit, and the relay receives a superposition of their transmitted signals. We propose a ne... | [
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1024788 | 1004.1218 | 2010-04-08 | The Noise-Sensitivity Phase Transition in Compressed Sensing | Consider the noisy underdetermined system of linear equations: y=Ax0 + z0, with n x N measurement matrix A, n < N, and Gaussian white noise z0 ~ N(0,\sigma^2 I). Both y and A are known, both x0 and z0 are unknown, and we seek an approximation to x0. When x0 has few nonzeros, useful approximations are obtained by l1-pen... | [
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"author_id": "a maleki_1",
"name": "Arian Maleki",
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14757894 | 1004.1461 | 2010-04-08 | Compromising Tor Anonymity Exploiting P2P Information Leakage | Privacy of users in P2P networks goes far beyond their current usage and is a fundamental requirement to the adoption of P2P protocols for legal usage. In a climate of cold war between these users and anti-piracy groups, more and more users are moving to anonymizing networks in an attempt to hide their identity. Howeve... | [
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"name": "Chaabane Abdelberi",
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3212 | 1004.1379 | 2010-04-08 | Index coding via linear programming | Index Coding has received considerable attention recently motivated in part by real-world applications and in part by its connection to Network Coding. The basic setting of Index Coding encodes the problem input as an undirected graph and the fundamental parameter is the broadcast rate $\beta$, the average communicatio... | [
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119207391 | 1004.1641 | 2010-04-09 | The decoupling approach to quantum information theory | Quantum information theory studies the fundamental limits that physical laws impose on information processing tasks such as data compression and data transmission on noisy channels. This thesis presents general techniques that allow one to solve many fundamental problems of quantum information theory in a unified frame... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119184727 | 1004.1559 | 2010-04-09 | Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146 | We present a new Chandra observation of the galaxy cluster Abell 2146 which has revealed a complex merging system with a gas structure that is remarkably similar to the Bullet cluster (eg. Markevitch et al. 2002). The X-ray image and temperature map show a cool 2-3 keV subcluster with a ram pressure stripped tail of ga... | [
"astro-ph.CO"
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] | null | null | null |
2461913 | 1004.1446 | 2010-04-09 | A comparison between grid and particle methods on the statistics of driven, supersonic, isothermal turbulence | We compare the statistics of driven, supersonic turbulence at high Mach number using FLASH a widely used Eulerian grid-based code and PHANTOM, a Lagrangian SPH code at resolutions of up to 512^3 in both grid cells and SPH particles. We find excellent agreement between codes on the basic statistical properties: a slope ... | [
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"physics.flu-dyn"
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9680946 | 1004.1564 | 2010-04-09 | Polymatroids with Network Coding | The problem of network coding for multicasting a single source to multiple sinks has first been studied by Ahlswede, Cai, Li and Yeung in 2000, in which they have established the celebrated max-flow mini-cut theorem on non-physical information flow over a network of independent channels. On the other hand, in 1980, Han... | [
"cs.IT",
"math.IT"
] | null | [
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] | null | null | null |
16592055 | 1004.1485 | 2010-04-09 | Are there any good digraph width measures? | Several different measures for digraph width have appeared in the last few years. However, none of them shares all the "nice" properties of treewidth: First, being \emph{algorithmically useful} i.e. admitting polynomial-time algorithms for all $\MS1$-definable problems on digraphs of bounded width. And, second, having ... | [
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{
"author_id": "r ganian_1",
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"author_id": "p hliněný_1",
"name": "Petr Hliněný",
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... | null |
115165081 | 1004.1534 | 2010-04-09 | On the convex hull of symmetric stable processes | Let alpha \in (1, 2] and X be an R^d-valued alpha-stable process with independent and symmetric components starting in 0. We consider the closure S_t of the path described by X on the interval [0, t] and its convex hull Z_t. The first result of this paper provides a formula for certain mean mixed volumes of Z_t and in ... | [
"math.PR"
] | null | [
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54831298 | 1004.1587 | 2010-04-09 | Study of the Dependence of Direct Soft Photon Production on the Jet Characteristics in Hadronic Z^0 Decays | An analysis of the direct soft photon production rate as a function of the parent jet characteristics is presented, based on hadronic events collected by the DELPHI experiment at LEP1. The dependences of the photon rates on the jet kinematic characteristics (momentum, mass, etc.) and on the jet charged, neutral and tot... | [
"hep-ex"
] | null | [
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{
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"name": "Pedro Abreu",
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... | null |
3116296 | 1004.1628 | 2010-04-09 | Experimental Investigation of an Eight Qubit Unit Cell in a Superconducting Optimization Processor | A superconducting chip containing a regular array of flux qubits, tunable interqubit inductive couplers, an XY-addressable readout system, on-chip programmable magnetic memory, and a sparse network of analog control lines has been studied. The architecture of the chip and the infrastructure used to control it were desi... | [
"cond-mat.supr-con"
] | null | [
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] | null | null | null |
11185356 | 1004.1982 | 2010-04-09 | State-Space Dynamics Distance for Clustering Sequential Data | This paper proposes a novel similarity measure for clustering sequential data. We first construct a common state-space by training a single probabilistic model with all the sequences in order to get a unified representation for the dataset. Then, distances are obtained attending to the transition matrices induced by ea... | [
"cs.LG"
] | null | [
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{
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"author_id": "e parrado-hernández_1",
"name": "Emilio Parrado-Hernández",
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"h_index"... | null |
4806946 | 1004.1483 | 2010-04-09 | A derivation of quantum theory from physical requirements | Quantum theory is usually formulated in terms of abstract mathematical postulates, involving Hilbert spaces, state vectors, and unitary operators. In this work, we show that the full formalism of quantum theory can instead be derived from five simple physical requirements, based on elementary assumptions about preparat... | [
"quant-ph",
"gr-qc",
"hep-th"
] | null | [
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] | null | null | null |
3677440 | 1004.1586 | 2010-04-09 | Belief Propagation for Min-cost Network Flow: Convergence and Correctness | Message passing type algorithms such as the so-called Belief Propagation algorithm have recently gained a lot of attention in the statistics, signal processing and machine learning communities as attractive algorithms for solving a variety of optimization and inference problems. As a decentralized, easy to implement an... | [
"cs.DM",
"cs.AI"
] | null | [
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] | null | null | null |
6576208 | 1904.01689 | 2010-04-10 | The Tower of Babel Meets Web 2.0: User-Generated Content and its Applications in a Multilingual Context | This study explores language's fragmenting effect on user-generated content by examining the diversity of knowledge representations across 25 different Wikipedia language editions. This diversity is measured at two levels: the concepts that are included in each edition and the ways in which these concepts are described... | [
"cs.CL",
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] | null | [
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] | null | null | null |
18741012 | 1004.1729 | 2010-04-10 | On the bias of BFS | Breadth First Search (BFS) and other graph traversal techniques are widely used for measuring large unknown graphs, such as online social networks. It has been empirically observed that an incomplete BFS is biased toward high degree nodes. In contrast to more studied sampling techniques, such as random walks, the preci... | [
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"name": "Athina Markopoulou",
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118478862 | 1004.1671 | 2010-04-10 | VLA 1.4GHz observations of the GOODS-North Field: Data Reduction and Analysis | We describe deep, new, wide-field radio continuum observations of the Great Observatories Origins Deep Survey -- North (GOODS-N) field. The resulting map has a synthesized beamsize of ~1.7" and an r.m.s. noise level of ~3.9uJy/bm near its center and ~8uJy/bm at 15', from phase center. We have cataloged 1,230 discrete r... | [
"astro-ph.CO"
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115172428 | 1004.1828 | 2010-04-11 | Universality for the focusing nonlinear Schroedinger equation at the gradient catastrophe point: Rational breathers and poles of the tritronquee solution to Painleve I | The semiclassical (zero-dispersion) limit of the one-dimensional focusing Nonlinear Schroedinger equation (NLS) with decaying potentials is studied in a full scaling neighborhood D of the point of gradient catastrophe (x_0,t_0). This neighborhood contains the region of modulated plane wave (with rapid phase oscillation... | [
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] | null | [
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] | null | null | null |
118374731 | 1004.1765 | 2010-04-11 | Linear scaling solution of the all-electron Coulomb problem in solids | We present a linear scaling formulation for the solution of the all-electron Coulomb problem in crystalline solids. The resulting method is systematically improvable and well suited to large-scale quantum mechanical calculations in which the Coulomb potential and energy of a continuous electronic density and singular n... | [
"cond-mat.mtrl-sci"
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15172143 | 1004.1821 | 2010-04-11 | Phase Transitions for Greedy Sparse Approximation Algorithms | A major enterprise in compressed sensing and sparse approximation is the design and analysis of computationally tractable algorithms for recovering sparse, exact or approximate, solutions of underdetermined linear systems of equations. Many such algorithms have now been proven to have optimal-order uniform recovery gua... | [
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5285193 | 1004.1838 | 2010-04-11 | Topological Order with a Twist: Ising Anyons from an Abelian Model | Anyon models can be symmetric under some permutations of their topological charges. One can then conceive topological defects that, under monodromy, transform anyons according to a symmetry. We study the realization of such defects in the toric code model, showing that a process where defects are braided and fused has ... | [
"cond-mat.str-el",
"hep-th",
"quant-ph"
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] | null | null | null |
609281 | 1004.1854 | 2010-04-11 | Contribution Games in Social Networks | We consider network contribution games, where each agent in a social network has a budget of effort that he can contribute to different collaborative projects or relationships. Depending on the contribution of the involved agents a relationship will flourish or drown, and to measure the success we use a reward function... | [
"cs.GT",
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"cs.MA"
] | null | [
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14298859 | 1004.1823 | 2010-04-11 | Clustering with Spectral Norm and the k-means Algorithm | There has been much progress on efficient algorithms for clustering data points generated by a mixture of $k$ probability distributions under the assumption that the means of the distributions are well-separated, i.e., the distance between the means of any two distributions is at least $\Omega(k)$ standard deviations. ... | [
"cs.DS"
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8998440 | 1408.2044 | 2010-04-12 | Matrix Coherence and the Nystrom Method | The Nystrom method is an efficient technique used to speed up large-scale learning applications by generating low-rank approximations. Crucial to the performance of this technique is the assumption that a matrix can be well approximated by working exclusively with a subset of its columns. In this work we relate this as... | [
"cs.AI"
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115168794 | 1004.1906 | 2010-04-12 | Regularity of radial extremal solutions for some non local semilinear equations | We investigate stable solutions of elliptic equations of the type \begin{equation*} \left \{ \begin{aligned} (-\Delta)^s u&=\lambda f(u) \qquad {\mbox{ in $B_1 \subset \R^{n}$}} \\ u&= 0 \qquad{\mbox{ on $\partial B_1$,}}\end{aligned}\right . \end{equation*} where $n\ge2$, $s \in (0,1)$, $\lambda \geq 0$ and $f$ is any... | [
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14491629 | 1004.2104 | 2010-04-12 | Sum Capacity of K User Gaussian Degraded Interference Channels | This paper studies a family of genie-MAC (multiple access channel) outer bounds for K-user Gaussian interference channels. This family is inspired by existing genie-aided bounding mechanisms, but differs from current approaches in its optimization problem formulation and application. The fundamental idea behind these b... | [
"cs.IT",
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... | null |
118832350 | 1004.1907 | 2010-04-12 | Universal quantum computer from a quantum magnet | We show that a local Hamiltonian of spin-3/2 particles with only two-body nearest-neighbor Affleck-Kennedy-Lieb-Tasaki and exchange-type interactions has an unique ground state, which can be used to implement universal quantum computation merely with single-spin measurements. We prove that the Hamiltonian is gapped, in... | [
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{
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"... | null |
970956 | 1004.2027 | 2010-04-12 | Dynamic Policy Programming | In this paper, we propose a novel policy iteration method, called dynamic policy programming (DPP), to estimate the optimal policy in the infinite-horizon Markov decision processes. We prove the finite-iteration and asymptotic l\infty-norm performance-loss bounds for DPP in the presence of approximation/estimation erro... | [
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{
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"author_id": "v gómez_1",
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118569400 | 1004.1959 | 2010-04-12 | RACE-OC Project: Rotation and variability in young stellar associations within 100 pc | Our goal is to determine the rotational and magnetic-related activity properties of stars at different stages of evolution. We have focussed our attention on 6 young loose stellar associations within 100 pc and ages in the range 8-70 Myr: TW Hydrae (~8 Myr), beta Pictoris (~10 Myr), Tucana/Horologium, Columba, Carina (... | [
"astro-ph.SR"
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"target.author.publication_history.key_reference"
] | null | null | null |
59059812 | 1004.1991 | 2010-04-12 | An Improved Method for Estimating the Masses of Stars with Transiting Planets | To determine the physical parameters of a transiting planet and its host star from photometric and spectroscopic analysis, it is essential to independently measure the stellar mass. This is often achieved by the use of evolutionary tracks and isochrones, but the mass result is only as reliable as the models used. The r... | [
"astro-ph.EP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18906380 | 1004.2226 | 2010-04-13 | Adiabatic Quantum Algorithms for the NP-Complete Maximum-Weight Independent Set, Exact Cover and 3SAT Problems | The problem Hamiltonian of the adiabatic quantum algorithm for the maximum-weight independent set problem (MIS) that is based on the reduction to the Ising problem (as described in [Choi08]) has flexible parameters. We show that by choosing the parameters appropriately in the problem Hamiltonian (without changing the p... | [
"quant-ph",
"cs.CC"
] | null | [
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] | null | null | null |
15093314 | 1004.2316 | 2010-04-13 | Asymptotic Equivalence of Bayes Cross Validation and Widely Applicable Information Criterion in Singular Learning Theory | In regular statistical models, the leave-one-out cross-validation is asymptotically equivalent to the Akaike information criterion. However, since many learning machines are singular statistical models, the asymptotic behavior of the cross-validation remains unknown. In previous studies, we established the singular lea... | [
"cs.LG"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
2133233 | 1004.2291 | 2010-04-13 | One Tree Suffices: A Simultaneous O(1)-Approximation for Single-Sink Buy-at-Bulk | We study the single-sink buy-at-bulk problem with an unknown cost function. We wish to route flow from a set of demand nodes to a root node, where the cost of routing x total flow along an edge is proportional to f(x) for some concave, non-decreasing function f satisfying f(0)=0. We present a simple, fast, combinatoria... | [
"cs.DS",
"cs.DM"
] | null | [
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] | null | null | null |
15170690 | 1004.2159 | 2010-04-13 | Algebraic Proofs over Noncommutative Formulas | We study possible formulations of algebraic propositional proof systems operating with noncommutative formulas. We observe that a simple formulation gives rise to systems at least as strong as Frege---yielding a semantic way to define a Cook-Reckhow (i.e., polynomially verifiable) algebraic analog of Frege proofs, diff... | [
"cs.CC"
] | null | [
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] | null | null | null |
118432750 | 1004.2256 | 2010-04-13 | A Non Standard Supersymmetric Spectrum | Taking a bottom-up point of view and focussing on the lack of signals so far in the Higgs and in the flavour sectors, we argue in favour of giving consideration to supersymmetric extensions of the Standard Model where the lightest Higgs boson has a mass between 200 and 300 GeV and the first two generations of s-fermion... | [
"hep-ph"
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{
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{
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{
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{
"author_id": "e bertuzzo_1",
"name": "Enrico Bertuzzo",
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115169530 | 1004.2134 | 2010-04-13 | Partial Differential Equations An Introduction | This book encompasses both traditional and modern methods treating partial differential equation (PDE) of first order and second order. There is a balance in making a selfcontained mathematical text and introducing new subjects. The Lie algebras of vector fields and their algebraic-geometric representations are involve... | [
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119259790 | 1004.2496 | 2010-04-14 | Early supernovae light-curves following the shock-breakout | The first light from a supernova (SN) emerges once the SN shock breaks out of the stellar surface. The first light, typically a UV or X-ray flash, is followed by a broken power-law decay of the luminosity generated by radiation that leaks out of the expanding gas sphere. Motivated by recent detection of emission from v... | [
"astro-ph.HE",
"astro-ph.CO"
] | null | [
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] | null | null | null |
10166642 | 1004.2507 | 2010-04-14 | The uncertainty principle determines the non-locality of quantum mechanics | Two central concepts of quantum mechanics are Heisenberg's uncertainty principle, and a subtle form of non-locality that Einstein famously called ``spooky action at a distance''. These two fundamental features have thus far been distinct concepts. Here we show that they are inextricably and quantitatively linked. Quant... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119288549 | 1004.2474 | 2010-04-14 | Horava-Lifshitz cosmology with generalized Chaplygin gas | We investigate cosmological scenarios of generalized Chaplygin gas in a universe governed by Horava-Lifshitz gravity. We consider both the detailed and non-detailed balance versions of the gravitational background, and we include the baryonic matter and radiation sectors. We use observational data from Type Ia Supernov... | [
"astro-ph.CO",
"gr-qc",
"hep-th"
] | null | [
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{
"author_id": "a ali_25",
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{
"author_id": "s dutta_31",
"name": "Sourish Dutta",
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"num_c... | null |
18352532 | 1004.2548 | 2010-04-14 | Chain ladder method: Bayesian bootstrap versus classical bootstrap | The intention of this paper is to estimate a Bayesian distribution-free chain ladder (DFCL) model using approximate Bayesian computation (ABC) methodology. We demonstrate how to estimate quantities of interest in claims reserving and compare the estimates to those obtained from classical and credibility approaches. In ... | [
"q-fin.CP",
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"stat.ME"
] | null | [
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] | null | null | null |
14794416 | 1004.2515 | 2010-04-14 | Nonnegative Decomposition of Multivariate Information | Of the various attempts to generalize information theory to multiple variables, the most widely utilized, interaction information, suffers from the problem that it is sometimes negative. Here we reconsider from first principles the general structure of the information that a set of sources provides about a given variab... | [
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8458686 | 1004.2519 | 2010-04-14 | Robust State Space Filtering under Incremental Model Perturbations Subject to a Relative Entropy Tolerance | This paper considers robust filtering for a nominal Gaussian state-space model, when a relative entropy tolerance is applied to each time increment of a dynamical model. The problem is formulated as a dynamic minimax game where the maximizer adopts a myopic strategy. This game is shown to admit a saddle point whose str... | [
"math.OC",
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"math.IT"
] | null | [
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] | null | null | null |
1896173 | 1004.2489 | 2010-04-14 | N-Jettiness: An Inclusive Event Shape to Veto Jets | Jet vetoes are essential in many Higgs and new-physics analyses at the LHC and Tevatron. The signals are typically characterized by a specific number of hard jets, leptons, or photons, while the backgrounds often have additional jets. In such cases vetoing undesired additional jets is an effective way to discriminate s... | [
"hep-ph",
"hep-ex"
] | null | [
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] | null | null | null |
119235804 | 1004.2389 | 2010-04-14 | Non-equilibrium Relations for Spin Glasses with Gauge Symmetry | We study the applications of non-equilibrium relations such as the Jarzynski equality and fluctuation theorem to spin glasses with gauge symmetry. It is shown that the exponentiated free-energy difference appearing in the Jarzynski equality reduces to a simple analytic function written explicitly in terms of the initia... | [
"cond-mat.dis-nn",
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] | null | [
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{
"author_id": "m ohzeki_1",
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{
"author_id": "h nishimori_1",
"name": "Hidetoshi Nishimori",
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119117147 | 1004.2318 | 2010-04-14 | Solar fusion cross sections II: the pp chain and CNO cycles | We summarize and critically evaluate the available data on nuclear fusion cross sections important to energy generation in the Sun and other hydrogen-burning stars and to solar neutrino production. Recommended values and uncertainties are provided for key cross sections, and a recommended spectrum is given for 8B solar... | [
"nucl-ex",
"astro-ph.SR",
"hep-ex",
"nucl-th"
] | null | [
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] | null | null | null |
1472359 | 1004.2418 | 2010-04-14 | A note on the random greedy triangle-packing algorithm | The random greedy algorithm for constructing a large partial Steiner-Triple-System is defined as follows. We begin with a complete graph on $n$ vertices and proceed to remove the edges of triangles one at a time, where each triangle removed is chosen uniformly at random from the collection of all remaining triangles. T... | [
"math.CO",
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12882934 | 1004.2367 | 2010-04-14 | GIST: A Solver for Probabilistic Games | Gist is a tool that (a) solves the qualitative analysis problem of turn-based probabilistic games with {\omega}-regular objectives; and (b) synthesizes reasonable environment assumptions for synthesis of unrealizable specifications. Our tool provides the first and efficient implementations of several reduction-based te... | [
"cs.LO"
] | null | [
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{
"author_id": "k chatterjee_3",
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{
"author_id": "t henzinger_1",
"name": "Thomas [\"A.\"] Henzinger",
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"h_index": null,
... | null |
6147637 | 1004.2434 | 2010-04-14 | The Multi-way Relay Channel | The multiuser communication channel, in which multiple users exchange information with the help of a relay terminal, termed the multi-way relay channel (mRC), is introduced. In this model, multiple interfering clusters of users communicate simultaneously, where the users within the same cluster wish to exchange message... | [
"cs.IT",
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] | null | [
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{
"author_id": "d gündüz_1",
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{
"author_id": "a yener_1",
"name": "Aylin Yener",
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"nu... | null |
119298438 | 1004.2488 | 2010-04-14 | Cosmological Non-Linearities as an Effective Fluid | The universe is smooth on large scales but very inhomogeneous on small scales. Why is the spacetime on large scales modeled to a good approximation by the Friedmann equations? Are we sure that small-scale non-linearities do not induce a large backreaction? Related to this, what is the effective theory that describes th... | [
"astro-ph.CO",
"gr-qc",
"hep-th"
] | null | [
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] | null | null | null |
1809914 | 1004.2525 | 2010-04-14 | A Quantum-Conceptual Explanation of Violations of Expected Utility in Economics | The expected utility hypothesis is one of the building blocks of classical economic theory and founded on Savage's Sure-Thing Principle. It has been put forward, e.g. by situations such as the Allais and Ellsberg paradoxes, that real-life situations can violate Savage's Sure-Thing Principle and hence also expected util... | [
"physics.soc-ph",
"quant-ph"
] | null | [
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{
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{
"author_id": "j broekaert_1",
"name": "Jan Broekaert",
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... | null |
117989592 | 1004.2383 | 2010-04-14 | Extracting information about WIMP properties from direct detection experiments: astrophysical uncertainties | WIMP direct detection experiments probe the ultra-local dark matter density and velocity distribution. We review how uncertainties in these quantities affect the accuracy with which the WIMP mass and cross-section can be constrained or determined. | [
"astro-ph.CO",
"astro-ph.GA",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12993581 | 1004.2697 | 2010-04-15 | Assume-Guarantee Synthesis for Digital Contract Signing | We study the automatic synthesis of fair non-repudiation protocols, a class of fair exchange protocols, used for digital contract signing. First, we show how to specify the objectives of the participating agents and the trusted third party (TTP) as path formulas in LTL and prove that the satisfaction of these objective... | [
"cs.LO",
"cs.CR",
"cs.GT",
"cs.PL"
] | null | [
"target.author.publication_history",
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{
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{
"author_id": "v raman_6",
"name": "Vishwanath Raman",
"publication_history": null,
"h_index": null,
"num_pape... | null |
119119776 | 1004.2539 | 2010-04-15 | Semi-analytic results for quasi-normal frequencies | The last decade has seen considerable interest in the quasi-normal frequencies [QNFs] of black holes (and even wormholes), both asymptotically flat and with cosmological horizons. There is wide agreement that the QNFs are often of the form omega_n = (offset) + i n (gap), though some authors have encountered situations ... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119237655 | 1004.2698 | 2010-04-15 | Space-time Phase Transitions in Driven Kinetically Constrained Lattice Models | Kinetically constrained models (KCMs) have been used to study and understand the origin of glassy dynamics. Despite having trivial thermodynamic properties, their dynamics slows down dramatically at low temperatures while displaying dynamical heterogeneity as seen in glass forming supercooled liquids. This dynamics has... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t speck_1",
"name": "Thomas Speck",
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{
"author_id": "j garrahan_1",
"name": "Juan [\"P.\"] Garrahan",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
119209842 | 1004.2530 | 2010-04-15 | Quantum Particles as Conceptual Entities: A Possible Explanatory Framework for Quantum Theory | We put forward a possible new interpretation and explanatory framework for quantum theory. The basic hypothesis underlying this new framework is that quantum particles are conceptual entities. More concretely, we propose that quantum particles interact with ordinary matter, nuclei, atoms, molecules, macroscopic materia... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
935449 | 1004.2626 | 2010-04-15 | Propagating Conjunctions of AllDifferent Constraints | We study propagation algorithms for the conjunction of two AllDifferent constraints. Solutions of an AllDifferent constraint can be seen as perfect matchings on the variable/value bipartite graph. Therefore, we investigate the problem of finding simultaneous bipartite matchings. We present an extension of the famous Ha... | [
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c bessiere_1",
"name": "Christian Bessiere",
"publication_history": null,
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"num_citations": null
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{
"author_id": "g katsirelos_1",
"name": "George Katsirelos",
"publication_history": null,
"h_index": null,
"num_pap... | null |
119227698 | 1004.2671 | 2010-04-15 | Low redshift AGN in the Hamburg/ESO Survey: II. The active black hole mass function and the distribution function of Eddington ratios | We estimated black hole masses and Eddington ratios for a well defined sample of local (z<0.3) broad line AGN from the Hamburg/ESO Survey (HES), based on the Hbeta line and standard recipes assuming virial equilibrium for the broad line region. The sample represents the low-redshift AGN population over a wide range of ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
27254718 | 1004.2535 | 2010-04-15 | Role of Galactic sources and magnetic fields in forming the observed energy-dependent composition of ultrahigh-energy cosmic rays | Recent results from Pierre Auger Observatory, showing energy dependent chemical composition of ultrahigh-energy cosmic rays (UHECRs) with a growing fraction of heavy elements at high energies, suggest a possible non-negligible contribution of the Galactic sources. We show that, in the case of UHECRs produced by gamma-r... | [
"astro-ph.HE",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15430534 | 1004.2612 | 2010-04-15 | Towards random uniform sampling of bipartite graphs with given degree sequence | In this paper we consider a simple Markov chain for bipartite graphs with given degree sequence on $n$ vertices. We show that the mixing time of this Markov chain is bounded above by a polynomial in $n$ in case of {\em semi-regular} degree sequence. The novelty of our approach lays in the construction of the canonical ... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14742274 | 1004.2648 | 2010-04-15 | Optimality and Approximate Optimality of Source-Channel Separation in Networks | We consider the source-channel separation architecture for lossy source coding in communication networks. It is shown that the separation approach is optimal in two general scenarios, and is approximately optimal in a third scenario. The two scenarios for which separation is optimal complement each other: the first is ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "17693974",
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}
] | [
{
"author_id": "c tian_27",
"name": "Chao Tian",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j chen_287",
"name": "Jun Chen",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cita... | null |
741842 | 1004.2595 | 2010-04-15 | Planck pre-launch status: High Frequency Instrument polarization calibration | The High Frequency Instrument of Planck will map the entire sky in the millimeter and sub-millimeter domain from 100 to 857 GHz with unprecedented sensitivity to polarization ($\Delta P/T_{\tiny cmb} \sim 4\cdot 10^{-6}$) at 100, 143, 217 and 353 GHz. It will lead to major improvements in our understanding of the Cosmi... | [
"astro-ph.CO",
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "18743679",
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{
"corpus_id": "1511628",
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},
{
"corpus_id": "122796340",
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}
] | [
{
"author_id": "c rosset_1",
"name": "Cyrille Rosset",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "c rosset_1",
"name": "Cyrille Rosset",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
56317432 | 1004.2536 | 2010-04-15 | A Survey of the Polarized Emission from the Galactic Plane at 1420 MHz with Arcminute Angular Resolution | Context: Observations of polarized emission are a significant source of information on the magnetic field that pervades the Interstellar Medium of the Galaxy. Despite the acknowledged importance of the magnetic field in interstellar processes, our knowledge of field configurations on all scales is seriously limited. Ai... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
31794716 | 1004.2702 | 2010-04-15 | A Correlation Between Stellar Activity and Hot Jupiter Emission Spectra | We present evidence for a correlation between the observed properties of hot Jupiter emission spectra and the activity levels of the host stars measured using Ca II H & K emission lines. We find that planets with dayside emission spectra that are well-described by standard 1D atmosphere models with water in absorption ... | [
"astro-ph.EP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117835696 | 1004.2711 | 2010-04-15 | A line confusion limited millimeter survey of Orion KL (I): sulfur carbon chains | We perform a sensitive (line confusion limited), single-side band spectral survey towards Orion KL with the IRAM 30m telescope, covering the following frequency ranges: 80-115.5 GHz, 130-178 GHz, and 197-281 GHz. We detect more than 14 400 spectral features of which 10 040 have been identified up to date and attributed... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6120868 | 1004.2616 | 2010-04-15 | Achievable Rate Regions for Dirty Tape Channels and "Joint Writing on Dirty Paper and Dirty Tape" | We consider the Gaussian Dirty Tape Channel (DTC) Y=X+S+Z, where S is an additive Gaussian interference known causally to the transmitter. The general expression [max]\_top(P_U,f(.),X=f(U,S))I(U;Y) is presented for the capacity of this channel. For linear assignment to f(.), i.e. X=U-{\beta}S, this expression leads to ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
26799407 | 1004.2838 | 2010-04-16 | Discretization of variational regularization in Banach spaces | Consider a nonlinear ill-posed operator equation $F(u)=y$ where $F$ is defined on a Banach space $X$. In general, for solving this equation numerically, a finite dimensional approximation of $X$ and an approximation of $F$ are required. Moreover, in general the given data $\yd$ of $y$ are noisy. In this paper we analyz... | [
"math.NA"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
3142675 | 1004.2888 | 2010-04-16 | Approximately Optimal Mechanism Design via Differential Privacy | In this paper we study the implementation challenge in an abstract interdependent values model and an arbitrary objective function. We design a mechanism that allows for approximate optimal implementation of insensitive objective functions in ex-post Nash equilibrium. If, furthermore, values are private then the same m... | [
"cs.GT",
"cs.CR"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
8213175 | 1004.2891 | 2010-04-16 | On the approximability of robust spanning tree problems | In this paper the minimum spanning tree problem with uncertain edge costs is discussed. In order to model the uncertainty a discrete scenario set is specified and a robust framework is adopted to choose a solution. The min-max, min-max regret and 2-stage min-max versions of the problem are discussed. The complexity and... | [
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17545428 | 1004.2757 | 2010-04-16 | Multi-User Cooperative Diversity through Network Coding Based on Classical Coding Theory | In this work, we propose and analyze a generalized construction of distributed network codes for a network consisting of $M$ users sending different information to a common base station through independent block fading channels. The aim is to increase the diversity order of the system without reducing its throughput. T... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j rebelatto_1",
"name": "João [\"Luiz\"] Rebelatto",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "b filho_1",
"name": "Bartolomeu [\"F.\",\"Uchôa\"] Filho",
"publication_history": null,
"h_index... | null |
8790258 | 1004.2931 | 2010-04-16 | The Online Laboratory: Conducting Experiments in a Real Labor Market | Online labor markets have great potential as platforms for conducting experiments, as they provide immediate access to a large and diverse subject pool and allow researchers to conduct randomized controlled trials. We argue that online experiments can be just as valid---both internally and externally---as laboratory an... | [
"cs.HC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8631205 | 1004.2785 | 2010-04-16 | The stellar mass fraction and baryon content of galaxy clusters and groups | [Abridged] The analysis of a sample of 52 clusters with precise and hypothesis-parsimonious measurements of mass shows that low mass clusters and groups are not simple scaled-down versions of their massive cousins in terms of stellar content: lighter clusters have more stars per unit cluster mass. The same analysis als... | [
"astro-ph.CO",
"astro-ph.IM",
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
310820 | 1004.2818 | 2010-04-16 | Formal Relationships Between Geometrical and Classical Models for Concurrency | A wide variety of models for concurrent programs has been proposed during the past decades, each one focusing on various aspects of computations: trace equivalence, causality between events, conflicts and schedules due to resource accesses, etc. More recently, models with a geometrical flavor have been introduced, base... | [
"cs.DC",
"cs.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "é goubault_1",
"name": "Éric Goubault",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s mimram_1",
"name": "Samuel Mimram",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
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