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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192246 | 1006.1548 | 2010-06-08 | On Communication over Unknown Sparse Frequency-Selective Block-Fading Channels | This paper considers the problem of reliable communication over discrete-time channels whose impulse responses have length $L$ and exactly $S\leq L$ non-zero coefficients, and whose support and coefficients remain fixed over blocks of $N>L$ channel uses but change independently from block to block. Here, it is assumed ... | [
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88512042 | 1006.1575 | 2010-06-08 | Asymptotic distribution of a consistent cross-spectrum estimator based on uniformly spaced samples of a non-bandlimited process | It is well known that if the power spectral density of a continuous time stationary stochastic process does not have a compact support, data sampled from that process at any uniform sampling rate leads to biased and inconsistent spectrum estimators. In a recent paper, the authors showed that the smoothed periodogram es... | [
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957566 | 1006.1673 | 2010-06-08 | Distributed Algorithms for Learning and Cognitive Medium Access with Logarithmic Regret | The problem of distributed learning and channel access is considered in a cognitive network with multiple secondary users. The availability statistics of the channels are initially unknown to the secondary users and are estimated using sensing decisions. There is no explicit information exchange or prior agreement amon... | [
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7190045 | 1006.1492 | 2010-06-08 | Mean-payoff Automaton Expressions | Quantitative languages are an extension of boolean languages that assign to each word a real number. Mean-payoff automata are finite automata with numerical weights on transitions that assign to each infinite path the long-run average of the transition weights. When the mode of branching of the automaton is determinist... | [
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118591042 | 1006.1557 | 2010-06-08 | Ordering in voter models on networks: Exact reduction to a single-coordinate diffusion | We study the voter model and related random-copying processes on arbitrarily complex network structures. Through a representation of the dynamics as a particle reaction process, we show that a quantity measuring the degree of order in a finite system is, under certain conditions, exactly governed by a universal diffusi... | [
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67755579 | 1006.1621 | 2010-06-08 | Post-common-envelope binaries from SDSS. IX: Constraining the common-envelope efficiency | Reconstructing the evolution of post-common-envelope binaries (PCEBs) can constrain current prescriptions of common-envelope (CE) evolution. Analyzing a new sample of PCEBs we derive constraints on one of the most important parameters in the field of close compact binary formation, i.e. the CE efficiency alpha. After r... | [
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11630012 | 1006.1537 | 2010-06-08 | New worst upper bound for #SAT | The rigorous theoretical analyses of algorithms for #SAT have been proposed in the literature. As we know, previous algorithms for solving #SAT have been analyzed only regarding the number of variables as the parameter. However, the time complexity for solving #SAT instances depends not only on the number of variables,... | [
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118380527 | 1006.1902 | 2010-06-09 | Wilsonian Approach to Fluid/Gravity Duality | The problem of gravitational fluctuations confined inside a finite cutoff at radius $r=r_c$ outside the horizon in a general class of black hole geometries is considered. Consistent boundary conditions at both the cutoff surface and the horizon are found and the resulting modes analyzed. For general cutoff $r_c$ the di... | [
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119118762 | 1006.1780 | 2010-06-09 | Minimal computational-space implementation of multi-round quantum protocols | A single-party strategy in a multi-round quantum protocol can be implemented by sequential networks of quantum operations connected by internal memories. Here provide the most efficient realization in terms of computational-space resources. | [
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12110378 | 1006.1923 | 2010-06-09 | Parallel Approximation Algorithms for Facility-Location Problems | This paper presents the design and analysis of parallel approximation algorithms for facility-location problems, including $\NC$ and $\RNC$ algorithms for (metric) facility location, $k$-center, $k$-median, and $k$-means. These problems have received considerable attention during the past decades from the approximation... | [
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15855464 | 1006.1741 | 2010-06-09 | Vector-valued optimal Lipschitz extensions | Consider a bounded open set $U$ in $R^n$ and a Lipschitz function g from the boundary of $U$ to $R^m$. Does this function always have a canonical optimal Lipschitz extension to all of $U$? We propose a notion of optimal Lipschitz extension and address existence and uniqueness in some special cases. In the case $n=m=2$,... | [
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16577575 | 1006.1743 | 2010-06-09 | A Basis for all Solutions of the Key Equation for Gabidulin Codes | We present and prove the correctness of an efficient algorithm that provides a basis for all solutions of a key equation in order to decode Gabidulin (G-) codes up to a given radius tau. This algorithm is based on a symbolic equivalent of the Euclidean Algorithm (EA) and can be applied for decoding of G-codes beyond ha... | [
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"name": "Vladimir [\"R.\"] Sidorenko",
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16205993 | 1006.1746 | 2010-06-09 | Calibration and Internal no-Regret with Partial Monitoring | Calibrated strategies can be obtained by performing strategies that have no internal regret in some auxiliary game. Such strategies can be constructed explicitly with the use of Blackwell's approachability theorem, in an other auxiliary game. We establish the converse: a strategy that approaches a convex $B$-set can be... | [
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] | null |
265862284 | 1006.1881 | 2010-06-09 | Mix and Match | Consider a matching problem on a graph where disjoint sets of vertices are privately owned by self-interested agents. An edge between a pair of vertices indicates compatibility and allows the vertices to match. We seek a mechanism to maximize the number of matches despite self-interest, with agents that each want to ma... | [
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"author_id": "f fischer_1",
"name": "Felix [\"A.\"] Fischer",
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55492958 | 1006.1785 | 2010-06-09 | Criteria for Flux Rope Eruption: Non Equilibrium versus Torus Instability | The coronal magnetic configuration of an active region typically evolves quietly during few days before becoming suddenly eruptive and launching a coronal mass ejection (CME). The precise origin of the eruption is still debated. Among several mechanisms, it has been proposed that a loss of equilibrium, or an ideal magn... | [
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13442688 | 1006.1855 | 2010-06-09 | Electron energy spectrum of the spin-liquid state in a frustrated Hubbard model | Non-local correlation effects in the half-filled Hubbard model on an isotropic triangular lattice are studied within a spin polarized extension of the dual fermion approach. A competition between the antiferromagnetic non-collinear and the spin liquid states is strongly enhanced by an incorporation of a k-dependent sel... | [
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"name": "Alexey [\"N.\"] Rubtsov",
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37975456 | 1006.1696 | 2010-06-09 | Quantum annealing: An introduction and new developments | Quantum annealing is a generic algorithm using quantum-mechanical fluctuations to search for the solution of an optimization problem. The present paper first reviews the fundamentals of quantum annealing and then reports on preliminary results for an alternative method. The review part includes the relationship of quan... | [
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119599178 | 1006.1845 | 2010-06-09 | Irreducibility of some representations of the groups of symplectomorphisms and contactomorphisms | We show the irreducibility of some unitary representations of the group of symplectomorphisms and the group of contactomorphisms. | [
"math.RT"
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17074584 | 1006.1772 | 2010-06-09 | Analysis of a Collaborative Filter Based on Popularity Amongst Neighbors | In this paper, we analyze a collaborative filter that answers the simple question: What is popular amongst your friends? While this basic principle seems to be prevalent in many practical implementations, there does not appear to be much theoretical analysis of its performance. In this paper, we partly fill this gap. W... | [
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... | null |
18828691 | 1006.1961 | 2010-06-10 | K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV | We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of ... | [
"nucl-ex",
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14059471 | 1006.2151 | 2010-06-10 | A non-adapted sparse approximation of PDEs with stochastic inputs | We propose a method for the approximation of solutions of PDEs with stochastic coefficients based on the direct, i.e., non-adapted, sampling of solutions. This sampling can be done by using any legacy code for the deterministic problem as a black box. The method converges in probability (with probabilistic error bounds... | [
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... | null |
6035783 | 1006.2165 | 2010-06-10 | A Probabilistic Perspective on Gaussian Filtering and Smoothing | We present a general probabilistic perspective on Gaussian filtering and smoothing. This allows us to show that common approaches to Gaussian filtering/smoothing can be distinguished solely by their methods of computing/approximating the means and covariances of joint probabilities. This implies that novel filters and ... | [
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2965710 | 1006.2195 | 2010-06-10 | Subspace Evolution and Transfer (SET) for Low-Rank Matrix Completion | We describe a new algorithm, termed subspace evolution and transfer (SET), for solving low-rank matrix completion problems. The algorithm takes as its input a subset of entries of a low-rank matrix, and outputs one low-rank matrix consistent with the given observations. The completion task is accomplished by searching ... | [
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... | null |
119235210 | 1006.2035 | 2010-06-10 | Template Overlap Method for Massive Jets | We introduce a new class of infrared safe jet observables, which we refer to as template overlaps, designed to filter targeted highly boosted particle decays from QCD jets and other background. Template overlaps are functional measures that quantify how well the energy flow of a physical jet matches the flow of a boost... | [
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14397703 | 1006.2183 | 2010-06-10 | Highly Parallel Sparse Matrix-Matrix Multiplication | Generalized sparse matrix-matrix multiplication is a key primitive for many high performance graph algorithms as well as some linear solvers such as multigrid. We present the first parallel algorithms that achieve increasing speedups for an unbounded number of processors. Our algorithms are based on two-dimensional blo... | [
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1861001 | 1006.2125 | 2010-06-10 | Small But Slow World: How Network Topology and Burstiness Slow Down Spreading | Communication networks show the small-world property of short paths, but the spreading dynamics in them turns out slow. We follow the time evolution of information propagation through communication networks by using the SI model with empirical data on contact sequences. We introduce null models where the sequences are ... | [
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"nlin.AO",
"physics.bio-ph"
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119285587 | 1006.1945 | 2010-06-10 | Impact of Cluster Physics on the Sunyaev-Zel'dovich Power Spectrum | We use an analytic model to investigate the theoretical uncertainty on the thermal Sunyaev-Zel'dovich (SZ) power spectrum due to astrophysical uncertainties in the thermal structure of the intracluster medium. Our model accounts for star formation and energy feedback (from supernovae and active galactic nuclei) as well... | [
"astro-ph.CO"
] | null | [
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16496436 | 1006.2086 | 2010-06-10 | A Geometric Approach to Low-Rank Matrix Completion | The low-rank matrix completion problem can be succinctly stated as follows: given a subset of the entries of a matrix, find a low-rank matrix consistent with the observations. While several low-complexity algorithms for matrix completion have been proposed so far, it remains an open problem to devise search procedures ... | [
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28861135 | 1006.2129 | 2010-06-10 | On the critical behavior of the Susceptible-Infected-Recovered (SIR) model on a square lattice | By means of numerical simulations and epidemic analysis, the transition point of the stochastic, asynchronous Susceptible-Infected-Recovered (SIR) model on a square lattice is found to be c_0=0.1765005(10), where c is the probability a chosen infected site spontaneously recovers rather than tries to infect one neighbor... | [
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16299195 | 1006.2022 | 2010-06-10 | Message and state cooperation in multiple access channels | We investigate the capacity of a multiple access channel with cooperating encoders where partial state information is known to each encoder and full state information is known to the decoder. The cooperation between the encoders has a two-fold purpose: to generate empirical state coordination between the encoders, and ... | [
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"name": "Shlomo Shamai",
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18874443 | 1006.2156 | 2010-06-10 | Dyadic Prediction Using a Latent Feature Log-Linear Model | In dyadic prediction, labels must be predicted for pairs (dyads) whose members possess unique identifiers and, sometimes, additional features called side-information. Special cases of this problem include collaborative filtering and link prediction. We present the first model for dyadic prediction that satisfies severa... | [
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"name": "Charles [\"Peter\"] Elkan",
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... | null |
7788567 | 1006.2162 | 2010-06-10 | Multi-Cell MIMO Downlink with Cell Cooperation and Fair Scheduling: a Large-System Limit Analysis | We consider the downlink of a cellular network with multiple cells and multi-antenna base stations, including a realistic distance-dependent pathloss model, clusters of cooperating cells, and general "fairness" requirements. Beyond Monte Carlo simulation, no efficient computation method to evaluate the ergodic throughp... | [
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7281059 | 1006.1990 | 2010-06-10 | Minimizing a sum of submodular functions | We consider the problem of minimizing a function represented as a sum of submodular terms. We assume each term allows an efficient computation of {\em exchange capacities}. This holds, for example, for terms depending on a small number of variables, or for certain cardinality-dependent terms. A naive application of sub... | [
"cs.DS"
] | null | [
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] | null | null | null |
118823541 | 1006.2387 | 2010-06-11 | New stability results for Einstein scalar gravity | We consider asymptotically anti de Sitter gravity coupled to a scalar field with mass slightly above the Breitenlohner-Freedman bound. This theory admits a large class of consistent boundary conditions characterized by an arbitrary function $W$. An important open question is to determine which $W$ admit stable ground s... | [
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"gr-qc"
] | null | [
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118449993 | 1006.2288 | 2010-06-11 | Role of friction-induced torque in stick-slip motion | We present a minimal quasistatic 1D model describing the kinematics of the transition from static friction to stick-slip motion of a linear elastic block on a rigid plane. We show how the kinematics of both the precursors to frictional sliding and the periodic stick-slip motion are controlled by the amount of friction-... | [
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] | null | [
"target.key_reference"
] | null | null | null |
119237849 | 1006.2254 | 2010-06-11 | Real-time Analysis and Selection Biases in the Supernova Legacy Survey | The Supernova Legacy Survey (SNLS) has produced a high-quality, homogeneous sample of Type Ia supernovae (SNe Ia) out to redshifts greater than z=1. In its first four years of full operation (to June 2007), the SNLS discovered more than 3000 transient candidates, 373 of which have been confirmed spectroscopically as SN... | [
"astro-ph.CO"
] | null | [
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1848970 | 1006.2433 | 2010-06-11 | Anonymous Gossiping | In this paper we introduce a novel gossiping primitive to support privacy preserving data analytics (PPDA). In contrast to existing computational PPDA primitives such as secure multiparty computation and data randomization based approaches, the proposed primitive `anonymous gossiping' is a communication primitive for p... | [
"cs.DC",
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] | null | [
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}
] | null |
119708255 | 1006.2392 | 2010-06-11 | Cohomology of Line Bundles: Proof of the Algorithm | We present a proof of the algorithm for computing line bundle valued cohomology classes over toric varieties conjectured by R.~Blumenhagen, B.~Jurke and the authors (arXiv:1003.5217) and suggest a kind of Serre duality for combinatorial Betti numbers that we observed when computing examples. | [
"hep-th",
"math.AC",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119280943 | 1006.2326 | 2010-06-11 | Correlated Component Analysis for diffuse component separation with error estimation on simulated Planck polarization data | We present a data analysis pipeline for CMB polarization experiments, running from multi-frequency maps to the power spectra. We focus mainly on component separation and, for the first time, we work out the covariance matrix accounting for errors associated to the separation itself. This allows us to propagate such err... | [
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"author_id": "a bonaldi_1",
"name": "Anna Bonaldi",
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5917418 | 1006.2403 | 2010-06-11 | On the Queueing Behavior of Random Codes over a Gilbert-Elliot Erasure Channel | This paper considers the queueing performance of a system that transmits coded data over a time-varying erasure channel. In our model, the queue length and channel state together form a Markov chain that depends on the system parameters. This gives a framework that allows a rigorous analysis of the queue as a function ... | [
"cs.IT",
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] | null | [
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"author_id": "j chamberland_1",
"name": "Jean-François Chamberland",
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16141676 | 1006.2365 | 2010-06-11 | The jamming scenario - an introduction and outlook | The jamming scenario of disordered media, formulated about 10 years ago, has in recent years been advanced by analyzing model systems of granular media. This has led to various new concepts that are increasingly being explored in in a variety of systems. This chapter contains an introductory review of these recent deve... | [
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"author_id": "a liu_40",
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"name": "Sidney [\"R.\"] Nagel",
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3217061 | 1006.2300 | 2010-06-11 | A group model for stable multi-subject ICA on fMRI datasets | Spatial Independent Component Analysis (ICA) is an increasingly used data-driven method to analyze functional Magnetic Resonance Imaging (fMRI) data. To date, it has been used to extract sets of mutually correlated brain regions without prior information on the time course of these regions. Some of these sets of region... | [
"stat.AP",
"stat.ME"
] | null | [
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{
"author_id": "g varoquaux_1",
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"name": "Sepideh Sadaghiani",
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8637683 | 1006.2302 | 2010-06-11 | ICA-based sparse feature recovery from fMRI datasets | Spatial Independent Components Analysis (ICA) is increasingly used in the context of functional Magnetic Resonance Imaging (fMRI) to study cognition and brain pathologies. Salient features present in some of the extracted Independent Components (ICs) can be interpreted as brain networks, but the segmentation of the cor... | [
"stat.AP"
] | null | [
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{
"author_id": "g varoquaux_1",
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"author_id": "m keller_7",
"name": "Merlin Keller",
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"num_papers": null,... | null |
119113513 | 1006.2479 | 2010-06-12 | Glassy dynamics as a melting process (On melting dynamics and the glass transition, Part II) | There are deep analogies between the melting dynamics in systems with a first order phase transition and the dynamics from equilibrium in super-cooled liquids. For a class of Ising spin models undergoing a first order transition - namely p-spin models on the so-called Nishimori line - it can be shown that the melting d... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
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{
"author_id": "f krzakala_1",
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"name": "Lenka Zdeborov'a",
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263791188 | 1006.2425 | 2010-06-12 | An optimal algorithm for stochastic strongly-convex optimization | We consider stochastic convex optimization with a strongly convex (but not necessarily smooth) objective. We give an algorithm which performs only gradient updates with optimal rate of convergence. | [
"math.OC"
] | null | [
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{
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"name": "Satyen Kale",
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119272754 | 1006.2470 | 2010-06-12 | Biases in, and corrections to, KSB shear measurements | We analyse the KSB method to estimate gravitational shear from surface-brightness moments of small and noisy galaxy images. We identify three potentially problematic assumptions. These are: (1) While gravitational shear must be estimated from averaged galaxy images, KSB derives a shear estimate from each individual ima... | [
"astro-ph.CO",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118621674 | 1006.2480 | 2010-06-12 | Glassy aspects of melting dynamics (On melting dynamics and the glass transition, Part I) | The following properties are in the present literature associated with the behavior of super-cooled glass-forming liquids: faster than exponential growth of the relaxation time, dynamical heterogeneities, growing point-to-set correlation length, crossover from mean field behavior to activated dynamics. In this paper we... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
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{
"author_id": "f krzakala_1",
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"author_id": "l zdeborov'a_1",
"name": "Lenka Zdeborov'a",
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14664067 | 1006.2588 | 2010-06-13 | Agnostic Active Learning Without Constraints | We present and analyze an agnostic active learning algorithm that works without keeping a version space. This is unlike all previous approaches where a restricted set of candidate hypotheses is maintained throughout learning, and only hypotheses from this set are ever returned. By avoiding this version space approach, ... | [
"cs.LG"
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"author_id": "d hsu_3",
"name": "Daniel [\"J.\"] Hsu",
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2074700 | 1203.6783 | 2010-06-13 | Analysis of Unconstrained Nonlinear MPC Schemes with Time Varying Control Horizons | For nonlinear discrete time systems satisfying a controllability condition, we present a stability condition for model predictive control without stabilizing terminal constraints or costs. The condition is given in terms of an analytical formula which can be employed in order to determine a prediction horizon length fo... | [
"math.OC"
] | null | [
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{
"author_id": "l grüne_1",
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"name": "Jürgen Pannek",
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263790169 | 1006.2535 | 2010-06-13 | First search for gravitational waves from the youngest known neutron star | We present a search for periodic gravitational waves from the neutron star in the supernova remnant Cassiopeia A. The search coherently analyzes data in a 12-day interval taken from the fifth science run of the Laser Interferometer Gravitational-Wave Observatory. It searches gravitational wave frequencies from 100 to 3... | [
"gr-qc",
"astro-ph.HE"
] | null | [
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{
"author_id": "l abadie_0",
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{
"author_id": "b abbott_2",
"name": "B. [\"P.\"] Abbott",
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... | null |
118325369 | 1006.2541 | 2010-06-13 | Tightness, weak compactness of nonlinear expectations and application to CLT | In this paper we introduce a notion of tightness for a family of nonlinear expectations and show that the tightness can be applied to obtain weak compactness in a framework of nonlinear expectation space. This criterion is very useful for obtaining the weak convergence for a sequence of nonlinear expectations, which is... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118519019 | 1006.2738 | 2010-06-14 | Towards the experimental clarification of quarkonium polarization | We highlight issues which are often underestimated in the experimental analyses on quarkonium polarization: the relation between the parameters of the angular distributions and the angular momentum composition of the quarkonium, the importance of the choice of the reference frame, the interplay between observed decay a... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
93116 | 1006.2799 | 2010-06-14 | Characteristics of Kepler Planetary Candidates Based on the First Data Set: The Majority are Found to be Neptune-Size and Smaller | In the spring of 2009, the Kepler Mission commenced high-precision photometry on nearly 156,000 stars to determine the frequency and characteristics of small exoplanets, conduct a guest observer program, and obtain asteroseismic data on a wide variety of stars. On 15 June 2010 the Kepler Mission released data from the ... | [
"astro-ph.EP"
] | null | [
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{
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{
"author_id": "d koch_3",
"name": "David [\"G.\"] Koch",
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18513978 | 1006.2743 | 2010-06-14 | Global Optimization for Value Function Approximation | Existing value function approximation methods have been successfully used in many applications, but they often lack useful a priori error bounds. We propose a new approximate bilinear programming formulation of value function approximation, which employs global optimization. The formulation provides strong a priori gua... | [
"cs.AI"
] | null | [
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{
"author_id": "m petrik_1",
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{
"author_id": "s zilberstein_1",
"name": "Shlomo Zilberstein",
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"h_index": null,
"num_papers": ... | null |
118707416 | 1006.2826 | 2010-06-14 | Do Lognormal Column-Density Distributions in Molecular Clouds Imply Supersonic Turbulence? | Recent observations of column densities in molecular clouds find lognormal distributions with power-law high-density tails. These results are often interpreted as indications that supersonic turbulence dominates the dynamics of the observed clouds. We calculate and present the column-density distributions of three clou... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7841340 | 1006.2694 | 2010-06-14 | Multivariate linear recursions with Markov-dependent coefficients | We study a linear recursion with random Markov-dependent coefficients. In a "regular variation in, regular variation out" setup we show that its stationary solution has a multivariate regularly varying distribution. This extends results previously established for i.i.d. coefficients. | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14332273 | 1006.2856 | 2010-06-14 | Simulated epidemics in an empirical spatiotemporal network of 50,185 sexual contacts | We study implications of the dynamical and spatial contact structure between Brazilian escorts and sex-buyers for the spreading of sexually transmitted infections (STI). Despite a highly skewed degree distribution diseases spreading in this contact structure have rather well-defined epidemic thresholds. Temporal effect... | [
"physics.soc-ph",
"q-bio.PE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17028241 | 1006.2899 | 2010-06-14 | Approximated Structured Prediction for Learning Large Scale Graphical Models | This manuscripts contains the proofs for "A Primal-Dual Message-Passing Algorithm for Approximated Large Scale Structured Prediction". | [
"cs.LG",
"cs.AI"
] | null | [
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{
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] | [
{
"author_id": "t hazan_1",
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{
"author_id": "r urtasun_1",
"name": "Raquel Urtasun",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
118677581 | 1006.2858 | 2010-06-14 | Evidence for ultra-fast outflows in radio-quiet AGNs: I - detection and statistical incidence of Fe K-shell absorption lines | We performed a blind search for narrow absorption features at energies greater than 6.4 keV in a sample of 42 radio-quiet AGNs observed with XMM-Newton. We detect 36 narrow absorption lines on a total of 101 XMM-Newton EPIC pn observations. The number of absorption lines at rest-frame energies E>7 keV is 22. Their glob... | [
"astro-ph.HE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16036832 | 1006.2582 | 2010-06-14 | The perverse filtration and the Lefschetz hyperplane theorem, II | The perverse filtration in cohomology and in cohomology with compact supports is interpreted in terms of kernels of restrictions maps to suitable subvarieties by using the Lefschetz hyperplane theorem and spectral objects. Various mixed-Hodge-theoretic consequences for intersection cohomology and for the decomposition ... | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
21003326 | 1006.2604 | 2010-06-14 | Holographic laser Doppler ophthalmoscopy | We report laser Doppler ophthalmoscopic fundus imaging in the rat eye with near-IR heterodyne holography. Sequential sampling of the beat of the reflected radiation against a frequency-shifted optical local oscillator is made onto an array detector. Wide-field maps of fluctuation spectra in the 10 Hz to 25 kHz band exh... | [
"physics.optics"
] | null | [
"target.author.publication_history",
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{
"author_id": "m simonutti_1",
"name": "Manuel Simonutti",
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{
"author_id": "m paques_0",
"name": "Michel Paques",
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25300470 | 1006.2775 | 2010-06-14 | Quantum Discord and the Geometry of Bell-Diagonal States | The set of Bell-diagonal states for two qubits can be depicted as a tetrahedron in three dimensions. We consider the level surfaces of entanglement and quantum discord for Bell-diagonal states. This provides a complete picture of the structure of entanglement and discord for this simple case and, in particular, of thei... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
5771098 | 1006.2880 | 2010-06-14 | Fast Incremental and Personalized PageRank | In this paper, we analyze the efficiency of Monte Carlo methods for incremental computation of PageRank, personalized PageRank, and similar random walk based methods (with focus on SALSA), on large-scale dynamically evolving social networks. We assume that the graph of friendships is stored in distributed shared memory... | [
"cs.DS",
"cs.DB",
"cs.IR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1958090 | 1006.2758 | 2010-06-14 | Eigen-Based Transceivers for the MIMO Broadcast Channel with Semi-Orthogonal User Selection | This paper studies the sum rate performance of two low complexity eigenmode-based transmission techniques for the MIMO broadcast channel, employing greedy semi-orthogonal user selection (SUS). The first approach, termed ZFDPC-SUS, is based on zero-forcing dirty paper coding; the second approach, termed ZFBF-SUS, is bas... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
46933635 | 1006.2834 | 2010-06-14 | The Black Hole Mass Distribution in the Galaxy | We use dynamical mass measurements of 16 black holes in transient low-mass X-ray binaries to infer the stellar black hole mass distribution in the parent population. We find that the observations are best described by a narrow mass distribution at 7.8 +/- 1.2 Msolar. We identify a selection effect related to the choice... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119193825 | 1006.2788 | 2010-06-14 | An Operator Product Expansion for Polygonal null Wilson Loops | We consider polygonal Wilson loops with null edges in conformal gauge theories. We derive an OPE-like expansion when several successive lines of the polygon are becoming aligned. The limit corresponds to a collinear, or multicollinear, limit and we explain the systematics of all the subleading corrections, going beyond... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55593973 | 1006.2721 | 2010-06-14 | Characterization of ZnSe scintillating bolometers for Double Beta Decay | ZnSe scintillating bolometers are good candidates for future Double Beta Decay searches, because of the 82Se high Q-value and thanks to the possibility of alpha background rejection on the basis of the scintillation signal. In this paper we report the characteristics and the anomalies observed in an extensive study of ... | [
"nucl-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
45167865 | 1006.2833 | 2010-06-14 | Stop Reconstruction with Tagged Tops | At the LHC combinatorics make it unlikely that we will be able to observe stop pair production with a decay to a semi-leptonic top pair and missing energy for generic supersymmetric mass spectra. Using a Standard-Model top tagger on fully hadronic top decays we can not only extract the stop signal but also measure the ... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1167548 | 1006.3061 | 2010-06-15 | Surface flux transport modeling for solar cycles 15--21: effects of cycle-dependent tilt angles of sunspot groups | We model the surface magnetic field and open flux of the Sun from 1913 to 1986 using a surface flux transport model, which includes the observed cycle-to-cycle variation of sunspot group tilts. The model reproduces the empirically derived time evolution of the solar open magnetic flux, and the reversal times of the pol... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
27734189 | 1006.3040 | 2010-06-15 | Experimental Examination of the Effect of Short Ray Trajectories in Two-port Wave-Chaotic Scattering Systems | Predicting the statistics of realistic wave-chaotic scattering systems requires, in addition to random matrix theory, introduction of system-specific information. This paper investigates experimentally one aspect of system-specific behavior, namely the effects of short ray trajectories in wave-chaotic systems open to o... | [
"cond-mat.stat-mech",
"nlin.CD"
] | null | [
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{
"author_id": "j yeh_2",
"name": "Jen-Hao Yeh",
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"author_id": "j hart_1",
"name": "James [\"A\"] Hart",
"publication_history": null,
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"... | null |
13867663 | 1006.2911 | 2010-06-15 | Visible Effects of Invisible Hidden Valley Radiation | Assuming there is a new gauge group in a Hidden Valley, and a new type of radiation, can we observe it through its effect on the kinematic distributions of recoiling visible particles? Specifically, what are the collider signatures of radiation in a hidden sector? We address these questions using a generic SU(N)-like H... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
479845 | 1006.3056 | 2010-06-15 | Solving Inverse Problems with Piecewise Linear Estimators: From Gaussian Mixture Models to Structured Sparsity | A general framework for solving image inverse problems is introduced in this paper. The approach is based on Gaussian mixture models, estimated via a computationally efficient MAP-EM algorithm. A dual mathematical interpretation of the proposed framework with structured sparse estimation is described, which shows that ... | [
"cs.CV"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
52356237 | 1006.3028 | 2010-06-15 | Representation formula for the entropy and functional inequalities | We prove a stochastic formula for the Gaussian relative entropy in the spirit of Borell's formula for the Laplace transform. As an application, we give unified and short proofs of a number of functional inequalities. | [
"math.PR",
"math.FA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119006987 | 1006.3100 | 2010-06-15 | A drift homotopy Monte Carlo approach to particle filtering for multi-target tracking | We present a novel approach for improving particle filters for multi-target tracking. The suggested approach is based on drift homotopy for stochastic differential equations. Drift homotopy is used to design a Markov Chain Monte Carlo step which is appended to the particle filter and aims to bring the particle filter s... | [
"math.NA"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
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{
"author_id": "v maroulas_1",
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{
"author_id": "p stinis_1",
"name": "Panagiotis Stinis",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
11822745 | 1006.2996 | 2010-06-15 | Bounding the Rate Region of Vector Gaussian Multiple Descriptions with Individual and Central Receivers | In this work, the rate region of the vector Gaussian multiple description problem with individual and central quadratic distortion constraints is studied. In particular, an outer bound to the rate region of the L-description problem is derived. The bound is obtained by lower bounding a weighted sum rate for each suppor... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "7707885",
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{
"author_id": "g zhang_74",
"name": "Guoqiang Zhang",
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{
"author_id": "w kleijn_1",
"name": "W. Kleijn",
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"n... | null |
117216349 | 1006.2967 | 2010-06-15 | Producing Hard Processes Regarding the Complete Event: The EPOS Event Generator | Jet cross sections can be in principle compared to simple pQCD calculations, based on the hypothesis of factorization. But often it is useful or even necessary to not only compute the production rate of the very high pt jets, but in addition the "rest of the event". The proposed talk is based on recent work, where we t... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55829888 | 1006.3080 | 2010-06-15 | Thrust at N^3LL with Power Corrections and a Precision Global Fit for alphas(mZ) | We give a factorization formula for the e+e- thrust distribution dsigma/dtau with tau=1-T based on soft-collinear effective theory. The result is applicable for all tau, i.e. in the peak, tail, and far-tail regions. The formula includes O(alphas^3) fixed-order QCD results, resummation of singular partonic alphas^j ln^k... | [
"hep-ph",
"hep-ex",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118411451 | 1006.3071 | 2010-06-15 | The Luminosity Function of Lyman alpha Emitters at Redshift z=7.7 | Lyman alpha (Lya) emission lines should be attenuated in a neutral intergalactic medium (IGM). Therefore the visibility of Lya emitters at high redshifts can serve as a valuable probe of reionization at about the 50% level. We present an imaging search for z=7.7 Lya emitting galaxies using an ultra-narrowband filter (f... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9959354 | 1006.2940 | 2010-06-15 | LASSO ISOtone for High Dimensional Additive Isotonic Regression | Additive isotonic regression attempts to determine the relationship between a multi-dimensional observation variable and a response, under the constraint that the estimate is the additive sum of univariate component effects that are monotonically increasing. In this article, we present a new method for such regression ... | [
"stat.ME",
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{
"author_id": "z fang_43",
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{
"author_id": "n meinshausen_1",
"name": "Nicolai Meinshausen",
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"h_index": null,
"num_papers": nul... | null |
119933172 | 1006.3170 | 2010-06-16 | Structure and evolution of pulsating hot subdwarfs | Hot subdwarfs are evolved low--mass stars that have survived core helium ignition and are now in (or recently finished with) the core helium burning stage. At the hot end of the Horizontal Branch (HB), many of these stars are multiperiodic pulsators. These pulsations have revealed details of their global and internal s... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6936426 | 1006.3302 | 2010-06-16 | Quasirandom Load Balancing | We propose a simple distributed algorithm for balancing indivisible tokens on graphs. The algorithm is completely deterministic, though it tries to imitate (and enhance) a random algorithm by keeping the accumulated rounding errors as small as possible. Our new algorithm surprisingly closely approximates the idealized ... | [
"cs.DS",
"cs.DC"
] | null | [
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] | null | null | null |
16160973 | 1006.3360 | 2010-06-16 | Base station cooperation on the downlink: Large system analysis | This paper considers maximizing the network-wide minimum supported rate in the downlink of a two-cell system, where each base station (BS) is endowed with multiple antennas. This is done for different levels of cell cooperation. At one extreme, we consider single cell processing where the BS is oblivious to the interfe... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2490136 | 1006.3366 | 2010-06-16 | A Review of the Energy Efficient and Secure Multicast Routing Protocols for Mobile Ad hoc Networks | This paper presents a thorough survey of recent work addressing energy efficient multicast routing protocols and secure multicast routing protocols in Mobile Ad hoc Networks (MANETs). There are so many issues and solutions which witness the need of energy management and security in ad hoc wireless networks. The objecti... | [
"cs.NI"
] | null | [
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] | [
{
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{
"author_id": "b olagbegi_0",
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{
"author_id": "n meghanathan_1",
"name": "Natarajan Meghanathan",
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... | null |
119255011 | 1006.3244 | 2010-06-16 | Statistical Significance of the Gallium Anomaly | We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is about 3... | [
"hep-ph",
"hep-ex",
"nucl-ex",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
39590538 | 1006.3128 | 2010-06-16 | The Sampling Rate-Distortion Tradeoff for Sparsity Pattern Recovery in Compressed Sensing | Recovery of the sparsity pattern (or support) of an unknown sparse vector from a limited number of noisy linear measurements is an important problem in compressed sensing. In the high-dimensional setting, it is known that recovery with a vanishing fraction of errors is impossible if the measurement rate and the per-sam... | [
"cs.IT",
"math.IT"
] | null | [
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{
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{
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},
{
"corpus_id": "2057",
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] | [
{
"author_id": "g reeves_1",
"name": "Galen Reeves",
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},
{
"author_id": "m gastpar_1",
"name": "Michael Gastpar",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
5427102 | 1006.3314 | 2010-06-16 | A giant planet imaged in the disk of the young star Beta Pictoris | Here we show that the ~10 Myr Beta Pictoris system hosts a massive giant planet, Beta Pictoris b, located 8 to 15 AU from the star. This result confirms that gas giant planets form rapidly within disks and validates the use of disk structures as fingerprints of embedded planets. Among the few planets already imaged, Be... | [
"astro-ph.EP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2691265 | 1006.3156 | 2010-06-16 | Decoding of Convolutional Codes over the Erasure Channel | In this paper we study the decoding capabilities of convolutional codes over the erasure channel. Of special interest will be maximum distance profile (MDP) convolutional codes. These are codes which have a maximum possible column distance increase. We show how this strong minimum distance condition of MDP convolutiona... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
220905592 | 1006.3340 | 2010-06-16 | Numerical methods for the L\'evy LIBOR model | The aim of this work is to provide fast and accurate approximation schemes for the Monte-Carlo pricing of derivatives in the L\'evy LIBOR model of Eberlein and \"Ozkan (2005). Standard methods can be applied to solve the stochastic differential equations of the successive LIBOR rates but the methods are generally slow.... | [
"q-fin.CP",
"math.NA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a papapantoleon_1",
"name": "Antonis Papapantoleon",
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"num_papers": null,
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},
{
"author_id": "d skovmand_1",
"name": "David Skovmand",
"publication_history": null,
"h_index": null,
"num_... | null |
17548785 | 1006.3176 | 2010-06-16 | Equivariant cobordism of schemes | We study the equivariant cobordism theory of schemes for action of linear algebraic groups. We compare the equivariant cobordism theory for the action of a linear algebraic groups with similar groups for the action of tori and deduce some consequences for the cycle class map of the classifying space of an algebraic gro... | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5002331 | 1006.3316 | 2010-06-16 | Stability Approach to Regularization Selection (StARS) for High Dimensional Graphical Models | A challenging problem in estimating high-dimensional graphical models is to choose the regularization parameter in a data-dependent way. The standard techniques include $K$-fold cross-validation ($K$-CV), Akaike information criterion (AIC), and Bayesian information criterion (BIC). Though these methods work well for lo... | [
"stat.ML"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "1231300",
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}
] | [
{
"author_id": "h liu_216",
"name": "Han Liu",
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},
{
"author_id": "k roeder_1",
"name": "Kathryn Roeder",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
9283803 | 1006.3417 | 2010-06-17 | Fictitious Play with Time-Invariant Frequency Update for Network Security | We study two-player security games which can be viewed as sequences of nonzero-sum matrix games played by an Attacker and a Defender. The evolution of the game is based on a stochastic fictitious play process, where players do not have access to each other's payoff matrix. Each has to observe the other's actions up to ... | [
"cs.GT",
"cs.CR",
"cs.LG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k nguyen_11",
"name": "Kien [\"C\"] Nguyen",
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"h_index": null,
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},
{
"author_id": "t alpcan_1",
"name": "Tansu Alpcan",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
2607374 | 1006.3520 | 2010-06-17 | Information Distance | While Kolmogorov complexity is the accepted absolute measure of information content in an individual finite object, a similarly absolute notion is needed for the information distance between two individual objects, for example, two pictures. We give several natural definitions of a universal information metric, based o... | [
"cs.IT",
"math.IT",
"math.PR",
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
28167919 | 1006.3546 | 2010-06-17 | Phase coexistence in congested states of pedestrian dynamics | Experimental results for congested pedestrian traffic are presented. For data analysis we apply a method providing measurements on an individual scale. The resulting velocity-density relation shows a coexistence of moving and stopping states revealing the complex structure of pedestrian fundamental diagrams and support... | [
"physics.soc-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a seyfried_1",
"name": "Armin Seyfried",
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"h_index": null,
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"num_citations": null
},
{
"author_id": "a portz_1",
"name": "Andrea Portz",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
2019695 | 1006.3430 | 2010-06-17 | The Cover Time of Deterministic Random Walks | The rotor router model is a popular deterministic analogue of a random walk on a graph. Instead of moving to a random neighbor, the neighbors are served in a fixed order. We examine how fast this "deterministic random walk" covers all vertices (or all edges). We present general techniques to derive upper bounds for the... | [
"cs.DM",
"math.CO",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16286108 | 1006.3385 | 2010-06-17 | A Fixed Precoding Approach to Achieve the Degrees of Freedom in X channel | This paper aims to provide a fixed precoding scheme to achieve the Degrees of Freedom DoF of the generalized ergodic X channel. This is achieved through using the notion of ergodic interference alignment technique. Accordingly, in the proposed method the transmitters do not require to know the full channel state inform... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "2138623",
"num_citations": null
}
] | [
{
"author_id": "s akhlaghi_0",
"name": "Soroush Akhlaghi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m maddah-ali_1",
"name": "Mohammad [\"Ali\"] Maddah-ali",
"publication_history": null,
"h_index": null,
... | null |
16415924 | 1006.3498 | 2010-06-17 | Fast and accurate annotation of short texts with Wikipedia pages | We address the problem of cross-referencing text fragments with Wikipedia pages, in a way that synonymy and polysemy issues are resolved accurately and efficiently. We take inspiration from a recent flow of work [Cucerzan 2007, Mihalcea and Csomai 2007, Milne and Witten 2008, Chakrabarti et al 2009], and extend their s... | [
"cs.IR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119235608 | 1006.3352 | 2010-06-17 | On Close Relationship between Classical Time-Dependent Harmonic Oscillator and Non-Relativistic Quantum Mechanics in One Dimension | In this paper, I present a mapping between representation of some quantum phenomena in one dimension and behavior of a classical time-dependent harmonic oscillator. For the first time, it is demonstrated that quantum tunneling can be described in terms of classical physics without invoking violations of the energy cons... | [
"quant-ph",
"physics.class-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a davydov_2",
"name": "A. Davydov",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
14963905 | 1006.3573 | 2010-06-17 | Nested Polar Codes for Wiretap and Relay Channels | We show that polar codes asymptotically achieve the whole capacity-equivocation region for the wiretap channel when the wiretapper's channel is degraded with respect to the main channel, and the weak secrecy notion is used. Our coding scheme also achieves the capacity of the physically degraded receiver-orthogonal rela... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m andersson_3",
"name": "Mattias Andersson",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "v rathi_2",
"name": "Vishwambhar Rathi",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
103509805 | 1006.3411 | 2010-06-17 | Two-electronic component behavior in the multiband FeSe$_{0.42}$Te$_{0.58}$ superconductor | We report X-band EPR and $^{125}$Te and $^{77}$Se NMR measurements on single-crystalline superconducting FeSe$_{0.42}$Te$_{0.58}$ ($T_c$ = 11.5(1) K). The data provide evidence for the coexistence of intrinsic localized and itinerant electronic states. In the normal state, localized moments couple to itinerant electron... | [
"cond-mat.supr-con"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d arčon_0",
"name": "Denis Arčon",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p jeglič_0",
"name": "Peter Jeglič",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
118563749 | 1006.3443 | 2010-06-17 | DFT screened-exchange approach for investigating electronical properties of graphene-related materials | We present ab initio calculations of the bandstructure of graphene and of short zigzag graphene nanoribbons by the screened-exchange-LDA method (sX-LDA) within the framework of density functional theory (DFT). The inclusion of non-local electron-electron interactions in this approach results in a renormalization of the... | [
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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