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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18567460 | 0905.3531 | 2009-05-21 | Uncertainties on alpha_S in global PDF analyses and implications for predicted hadronic cross sections | We determine the uncertainty on the strong coupling alpha_S due to the experimental errors on the data fitted in global analysis of hard-scattering data, within the standard framework of leading-twist fixed-order collinear factorisation in the MSbar scheme, finding that alpha_S(M_Z^2) = 0.1202^{+0.0012}_{-0.0015} at ne... | [
"hep-ph"
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14141990 | 0905.3410 | 2009-05-21 | Optimizing baryon acoustic oscillation surveys II: curvature, redshifts, and external datasets | We extend our study of the optimization of large baryon acoustic oscillation (BAO) surveys to return the best constraints on the dark energy, building on Paper I of this series (Parkinson et al. 2007). The survey galaxies are assumed to be pre-selected active, star-forming galaxies observed by their line emission with ... | [
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118696708 | 0905.3546 | 2009-05-21 | Generating static spherically symmetric anisotropic solutions of Einstein's equations from isotropic Newtonian solutions | I use the Newtonian equation of hydrostatic equilibrium for an isotropic fluid sphere to generate exact anisotropic solutions of Einstein's equations. The input function is simply the density. An infinite number of regular solutions are constructed, some of which satisfy all the standard energy conditions. Two classes ... | [
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14131306 | 0905.3710 | 2009-05-22 | Search for Gravitational Waves from Low Mass Compact Binary Coalescence in 186 Days of LIGO's fifth Science Run | We report on a search for gravitational waves from coalescing compact binaries, of total mass between 2 and 35 Msun, using LIGO observations between November 14, 2006 and May 18, 2007. No gravitational-wave signals were detected. We report upper limits on the rate of compact binary coalescence as a function of total ma... | [
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17646565 | 0905.3623 | 2009-05-22 | Analytical evidence for the absence of spin glass transition on self-dual lattices | We show strong evidence for the absence of a finite-temperature spin glass transition for the random-bond Ising model on self-dual lattices. The analysis is performed by an application of duality relations, which enables us to derive a precise but approximate location of the multicritical point on the Nishimori line. T... | [
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932062 | 0905.3735 | 2009-05-22 | Optical Flares from the Tidal Disruption of Stars by Massive Black Holes | A star that wanders too close to a massive black hole (BH) is shredded by the BH's tidal gravity. Stellar gas falls back to the BH, releasing a flare of energy. In anticipation of upcoming transient surveys, we predict the light curves and spectra of tidal flares as a function of time, highlighting the unique signature... | [
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118739209 | 0905.3768 | 2009-05-22 | Casting light on the 'anomalous' statistics of Mg II absorbers toward Gamma-Ray Burst afterglows: the incidence of weak systems | We revisit echelle spectra (spectral resolution R ~ 40000) of 8 Gamma-Ray Burst afterglows to obtain the incidence (dN/dz) of weak intervening Mg II systems at a mean redshift of <z> = 1.5. We show that dN/dz of systems having restframe equivalent widths 0.07 A < W_r(MgII) < 1 A toward GRBs is statistically consistent ... | [
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16921777 | 0905.3746 | 2009-05-22 | Non-Gaussianities in Single Field Inflation and their Optimal Limits from the WMAP 5-year Data | Using the recently developed effective field theory of inflation, we argue that the size and the shape of the non-Gaussianities generated by single-field inflation are generically well described by two parameters: f_NL^equil, which characterizes the size of the signal that is peaked on equilateral configurations, and f... | [
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10604876 | 0905.3757 | 2009-05-22 | Circuit Complexity and Decompositions of Global Constraints | We show that tools from circuit complexity can be used to study decompositions of global constraints. In particular, we study decompositions of global constraints into conjunctive normal form with the property that unit propagation on the decomposition enforces the same level of consistency as a specialized propagation... | [
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2595101 | 0905.3755 | 2009-05-22 | Decompositions of All Different, Global Cardinality and Related Constraints | We show that some common and important global constraints like ALL-DIFFERENT and GCC can be decomposed into simple arithmetic constraints on which we achieve bound or range consistency, and in some cases even greater pruning. These decompositions can be easily added to new solvers. They also provide other constraints w... | [
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8534666 | 0905.3614 | 2009-05-22 | The Tidal Tails of Globular Cluster Palomar 5 Based on Neural Networks Method | The Sixth Data Release (DR6) in the Sloan Digital Sky Survey (SDSS) provides more photometric regions, new features and more accurate data around globular cluster Palomar 5. A new method, Back Propagation Neural Network (BPNN), is used to estimate the probability of cluster member to detect its tidal tails. Cluster and... | [
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119253349 | 0905.3634 | 2009-05-22 | Black-hole radiation in Bose-Einstein condensates | We study the phonon fluxes emitted when the condensate velocity crosses the speed of sound, i.e., in backgrounds which are analogous to that of a black hole. We focus on elongated one dimensional condensates and on stationary flows. Our theoretical analysis and numerical results are based on the Bogoliubov-de Gennes eq... | [
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"gr-qc"
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198553 | 0905.3766 | 2009-05-22 | Reasoning about soft constraints and conditional preferences: complexity results and approximation techniques | Many real life optimization problems contain both hard and soft constraints, as well as qualitative conditional preferences. However, there is no single formalism to specify all three kinds of information. We therefore propose a framework, based on both CP-nets and soft constraints, that handles both hard and soft cons... | [
"cs.AI"
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"name": "Francesca Rossi",
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117857876 | 0905.3797 | 2009-05-23 | Quantum entanglement and generalized information processing using entangled states with odd number of particles | We discuss and generalize multi-particle entanglement based on statistical correlations using Ursell-Mayer type of cluster coefficients. Cluster coefficients are used to distinguish different, independent entangled systems as well as those which are connected through local unitary transformations. We propose a genuinel... | [
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8170051 | 0905.3806 | 2009-05-23 | Limits of randomly grown graph sequences | Motivated in part by various sequences of graphs growing under random rules (like internet models), convergent sequences of dense graphs and their limits were introduced by Borgs, Chayes, Lov\'asz, S\'os and Vesztergombi and by Lov\'asz and Szegedy. In this paper we use this framework to study one of the motivating cla... | [
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20665123 | 0905.3852 | 2009-05-23 | Hybrid Elastic/Discrete-Particle Approach to Biomembrane Dynamics with Application to the Mobility of Curved Integral Membrane Proteins | We introduce a simulation strategy to consistently couple continuum biomembrane dynamics to the motion of discrete biological macromolecules residing within or on the membrane. The methodology is used to study the diffusion of integral membrane proteins that impart a curvature on the bilayer surrounding them. Such prot... | [
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"name": "Paul [\"J.\"] Atzberger",
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119220817 | 0905.3801 | 2009-05-23 | A short impossibility proof of Quantum Bit Commitment | Bit commitment protocols, whose security is based on the laws of quantum mechanics alone, are generally held to be impossible on the basis of a concealment-bindingness tradeoff. A strengthened and explicit impossibility proof has been given in: G. M. D'Ariano, D. Kretschmann, D. Schlingemann, and R. F. Werner, Phys. Re... | [
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{
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"name": "Giacomo [\"Mauro\"] D’Ariano",
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... | null |
17024014 | 0905.3885 | 2009-05-24 | Swap Bribery | In voting theory, bribery is a form of manipulative behavior in which an external actor (the briber) offers to pay the voters to change their votes in order to get her preferred candidate elected. We investigate a model of bribery where the price of each vote depends on the amount of change that the voter is asked to i... | [
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"cs.AI"
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7077267 | 0905.3913 | 2009-05-24 | More on the pressing down game | We investigate the pressing down game and its relation to the Banach Mazur game. In particular we show: Consistently, there is a nowhere precipitous normal ideal $I$ on $\aleph_2$ such that player nonempty wins the pressing down game of length $\aleph_1$ on $I$ even if player empty starts. | [
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] | null | null | null |
14420534 | 0905.4087 | 2009-05-25 | Structural Solutions for Cross-Layer Optimization of Wireless Multimedia Transmission | In this paper, we propose a systematic solution to the problem of cross-layer optimization for delay-sensitive media transmission over time-varying wireless channels as well as investigate the structures and properties of this solution, such that it can be easily implemented in various multimedia systems and applicatio... | [
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17553312 | 0905.4074 | 2009-05-25 | Six-dimensional D_N theory and four-dimensional SO-USp quivers | We realize four-dimensional N=2 superconformal quiver gauge theories with alternating SO and USp gauge groups as compactifications of the six-dimensional D_N theory with defects. The construction can be used to analyze infinitely strongly-coupled limits and S-dualities of such gauge theories, resulting in a new class o... | [
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] | null | null | null |
15285536 | 0905.3934 | 2009-05-25 | Cooperative encoding for secrecy in interference channels | This paper investigates the fundamental performance limits of the two-user interference channel in the presence of an external eavesdropper. In this setting, we construct an inner bound, to the secrecy capacity region, based on the idea of cooperative encoding in which the two users cooperatively design their randomize... | [
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"... | null |
1002166 | 0905.4100 | 2009-05-25 | Online Stochastic Matching: Beating 1-1/e | We study the online stochastic bipartite matching problem, in a form motivated by display ad allocation on the Internet. In the online, but adversarial case, the celebrated result of Karp, Vazirani and Vazirani gives an approximation ratio of $1-1/e$. In the online, stochastic case when nodes are drawn repeatedly from ... | [
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118849848 | 0905.4013 | 2009-05-25 | Entanglement entropy and conformal field theory | We review the conformal field theory approach to entanglement entropy. We show how to apply these methods to the calculation of the entanglement entropy of a single interval, and the generalization to different situations such as finite size, systems with boundaries, and the case of several disjoint intervals. We discu... | [
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17693683 | 0905.3986 | 2009-05-25 | Relative frequencies of supernovae types: dependence on host galaxy magnitude, galactocentric radius and local metallicity | Context: Stellar evolution theory suggests that the relationship between number ratios of supernova (SN) types and metallicity holds important clues as to the nature of the progenitor stars (mass, metallicity, rotation, binarity, etc). Aims: We investigate the metallicity dependence of number ratios of various SN types... | [
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] | null | null | null |
16263533 | 0905.3941 | 2009-05-25 | On Quadratic g-Evaluations/Expectations and Related Analysis | In this paper we extend the notion of g-evaluation, in particular g-expectation, to the case where the generator g is allowed to have a quadratic growth. We show that some important properties of the g-expectations, including a representation theorem between the generator and the corresponding g-expectation, and conseq... | [
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7874049 | 0905.4022 | 2009-05-25 | Transfer Learning Using Feature Selection | We present three related ways of using Transfer Learning to improve feature selection. The three methods address different problems, and hence share different kinds of information between tasks or feature classes, but all three are based on the information theoretic Minimum Description Length (MDL) principle and share ... | [
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"name": "Dean [\"Phillips\"] Foster",
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... | null |
8995073 | 0905.4057 | 2009-05-25 | Coalitional Game Theory for Communication Networks: A Tutorial | Game theoretical techniques have recently become prevalent in many engineering applications, notably in communications. With the emergence of cooperation as a new communication paradigm, and the need for self-organizing, decentralized, and autonomic networks, it has become imperative to seek suitable game theoretical t... | [
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"name": "Zhu Han",
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14309321 | 0905.4164 | 2009-05-26 | Iterative Decoding on Multiple Tanner Graphs Using Random Edge Local Complementation | In this paper, we propose to enhance the performance of the sum-product algorithm (SPA) by interleaving SPA iterations with a random local graph update rule. This rule is known as edge local complementation (ELC), and has the effect of modifying the Tanner graph while preserving the code. We have previously shown how t... | [
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"author_id": "c riera_3",
"name": "Constanza Riera",
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55291338 | 0905.4233 | 2009-05-26 | On a CP Anisotropy Measurement in the Dalitz Plot | We describe a novel use of the Dalitz plot to probe CP symmetry in three-body modes of $B$ and $D$ mesons. It is based on an observable inspired by astronomers' practice, namely the significance in the difference between corresponding Dalitz plot bins. It provides a model independent mapping of local CP asymmetries. We... | [
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] | null | null | null |
17493703 | 0905.4159 | 2009-05-26 | Resonant laser power build-up in ALPS -- a "light-shining-through-walls" experiment | The ALPS collaboration runs a light-shining-through-walls (LSW) experiment to search for photon oscillations into "weakly interacting sub-eV particles" (WISPs) inside of a superconducting HERA dipole magnet at the site of DESY. In this paper we report on the first successful integration of a large-scale optical cavity ... | [
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"hep-ph"
] | null | [
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14850224 | 0905.4286 | 2009-05-26 | Valence Bond and von Neumann Entanglement Entropy in Heisenberg Ladders | We present a direct comparison of the recently-proposed valence bond entanglement entropy and the von Neumann entanglement entropy on spin 1/2 Heisenberg systems using quantum Monte Carlo and density-matrix renormalization group simulations. For one-dimensional chains we show that the valence bond entropy can be either... | [
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"author_id": "i gonzález_1",
"name": "Iván González",
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2664171 | 0905.4218 | 2009-05-26 | Pathwise Accuracy and Ergodicity of Metropolized Integrators for SDEs | Metropolized integrators for ergodic stochastic differential equations (SDE) are proposed which (i) are ergodic with respect to the (known) equilibrium distribution of the SDE and (ii) approximate pathwise the solutions of the SDE on finite time intervals. Both these properties are demonstrated in the paper and precise... | [
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] | null | null | null |
4499124 | 0905.4102 | 2009-05-26 | Communicability Betweenness in Complex Networks | Betweenness measures provide quantitative tools to pick out fine details from the massive amount of interaction data that is available from large complex networks. They allow us to study the extent to which a node takes part when information is passed around the network. Nodes with high betweenness may be regarded as k... | [
"physics.soc-ph",
"cond-mat.stat-mech"
] | null | [
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{
"author_id": "e estrada_1",
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{
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"name": "Desmond [\"John\"] Higham",
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"h_index": null,
"num_pap... | null |
4503926 | 0905.4101 | 2009-05-26 | Communicability and multipartite structures in complex networks at negative absolute temperatures | We here present a method of clearly identifying multi-partite subgraphs in a network. The method is based on a recently introduced concept of the communicability, which very clearly identifies communities in a complex network. We here show that, while the communicability at a positive temperature is useful in identifyi... | [
"physics.soc-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
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{
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{
"author_id": "d higham_1",
"name": "Desmond [\"John\"] Higham",
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"num_pap... | null |
342359 | 0905.4324 | 2009-05-27 | Finite sampling interval effects in Kramers-Moyal analysis | Large sampling intervals can affect reconstruction of Kramers-Moyal coefficients from data. A new method, which is direct, non-stochastic and exact up to numerical accuracy, can estimate these finite-time effects. For the first time, exact finite-time effects are described analytically for special cases; biologically i... | [
"physics.data-an",
"physics.bio-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3086811 | 0905.4476 | 2009-05-27 | Beacon-Assisted Spectrum Access with Cooperative Cognitive Transmitter and Receiver | Spectrum access is an important function of cognitive radios for detecting and utilizing spectrum holes without interfering with the legacy systems. In this paper we propose novel cooperative communication models and show how deploying such cooperations between a pair of secondary transmitter and receiver assists them ... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "a tajer_1",
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{
"author_id": "x wang_359",
"name": "Xiaodong Wang",
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17759155 | 0905.4395 | 2009-05-27 | An automata theoretic approach to the generalized word problem in graphs of groups | We give a simpler proof using automata theory of a recent result of Kapovich, Weidmann and Myasnikov according to which so-called benign graphs of groups preserve decidability of the generalized word problem. These include graphs of groups in which edge groups are polycyclic-by-finite and vertex groups are either local... | [
"math.GR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14326627 | 0905.4429 | 2009-05-27 | Kinetics of the helix-coil transition | Based on the Zimm-Bragg model we study cooperative helix-coil transition driven by a finite-speed change of temperature. There is an asymmetry between the coil-to-helix and helix-to-coil transition: the latter is displayed already for finite speeds, and takes shorter time than the former. This hysteresis effect has bee... | [
"cond-mat.soft",
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{
"author_id": "a allahverdyan_1",
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{
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"name": "S. [\"G.\"] Gevorkian",
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5284690 | 0905.4309 | 2009-05-27 | A Revisit of the Masuda Flare | We revisit the flare on 1992 January 13, which is now universally termed the "Masuda flare". The revisit is motivated not only by its uniqueness despite accumulating observations of \hxr coronal emission, but also by the improvement of Yohkoh hard X-ray imaging, which was achieved after the intensive investigations on ... | [
"astro-ph.SR"
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{
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{
"author_id": "y xu_148",
"name": "Yan Xu",
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"num_citations"... | null |
3111280 | 0905.4502 | 2009-05-27 | Tracing Sagittarius Structure with SDSS and SEGUE Imaging and Spectroscopy | We show that the Sagittarius dwarf tidal stream can be traced with very red K/M-giant stars selected from SDSS photometry. A subset of these stars are spectroscopically confirmed with SEGUE and SDSS spectra, and the distance scale of 2MASS and SDSS M giants is calibrated to the RR Lyrae distance scale. The absolute g b... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15357207 | 0905.4400 | 2009-05-27 | Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope | We report the detection of pulsed gamma-rays from the young, spin-powered radio pulsar PSR J2021+3651 using data acquired with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST). The light curve consists of two narrow peaks of similar amplitude separated by 0.468 +/- 0.002 in phase. ... | [
"astro-ph.HE",
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{
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"name": "Markus Ackermann",
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14001441 | 0905.4301 | 2009-05-27 | BOOMERanG Constraints on Primordial Non-Gaussianity from Analytical Minkowski Functionals | We use Minkowski Functionals (MF) to constrain a primordial non-Gaussian contribution to the CMB intensity field as observed in the 150 GHz and 145 GHz BOOMERanG maps from the 1998 and 2003 flights, respectively, performing for the first time a joint analysis of the two datasets. A perturbative expansion of the MF form... | [
"astro-ph.CO"
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{
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... | [
{
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{
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"name": "Grazia [\"De\"] Troia",
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16249267 | 0905.4669 | 2009-05-28 | Morphological quenching of star formation: making early-type galaxies red | We point out a natural mechanism for quenching of star formation in early-type galaxies. It automatically links the color of a galaxy with its morphology and does not require gas consumption, removal or termination of gas supply. Given that star formation takes place in gravitationally unstable gas disks, it can be que... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11490055 | 0905.4614 | 2009-05-28 | A Logic Programming Approach to Activity Recognition | We have been developing a system for recognising human activity given a symbolic representation of video content. The input of our system is a set of time-stamped short-term activities detected on video frames. The output of our system is a set of recognised long-term activities, which are pre-defined temporal combinat... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16613958 | 0905.4558 | 2009-05-28 | Fermi/LAT discovery of gamma-ray emission from a relativistic jet in the narrow-line quasar PMN J0948+0022 | We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray emission from the peculiar quasar PMN J0948+0022 (z=0.5846). The optical spectrum of this object exhibits rather narrow Hbeta (FWHM(Hbeta) ~ 1500 km s^-1), weak forbidden lines and is therefore... | [
"astro-ph.HE",
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119300397 | 0905.4728 | 2009-05-28 | Large-J approach to strongly coupled spin-orbital systems | We present a novel approach to study the ground state and elementary excitations in compounds where spins and orbitals are entangled by on-site relativistic spin-orbit interaction. The appropriate degrees of freedom are localized states with an effective angular momentum J. We generalize J to arbitrary large values whi... | [
"cond-mat.str-el",
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{
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"author_id": "n perkins_1",
"name": "Natalia [\"B.\"] Perkins",
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11822159 | 0905.4742 | 2009-05-28 | HERACLES: The HERA CO-Line Extragalactic Survey | We present the HERA CO-Line Extragalactic Survey (HERACLES), an atlas of CO emission from 18 nearby galaxies that are also part of The HI Nearby Galaxy Survey (THINGS) and the Spitzer Infrared Nearby Galaxies Survey (SINGS). We used the HERA multi-pixel receiver on the IRAM 30-m telescope to map the CO J=2-1 line over ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13059719 | 0905.4720 | 2009-05-28 | String Axiverse | String theory suggests the simultaneous presence of many ultralight axions possibly populating each decade of mass down to the Hubble scale 10^-33eV. Conversely the presence of such a plenitude of axions (an "axiverse") would be evidence for string theory, since it arises due to the topological complexity of the extra-... | [
"hep-th",
"astro-ph.CO",
"gr-qc",
"hep-ph"
] | null | [
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] | null | null | null |
13216886 | 0905.4621 | 2009-05-28 | The impact of the nitrogen-to-oxygen ratio on ionized nebulae diagnostics based on [NII] emission lines | We study the relation between nitrogen and oxygen abundances as a function of metallicity for a sample of emission-line objects for which a direct measurement of the metallicity has been possible. This sample is representative of the very different conditions in ionization and chemical enrichement that we can find in t... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18565363 | 0905.4684 | 2009-05-28 | A Simple Sequential Spectrum Sensing Scheme for Cognitive Radio | Cognitive radio that supports a secondary and opportunistic access to licensed spectrum shows great potential to dramatically improve spectrum utilization. Spectrum sensing performed by secondary users to detect unoccupied spectrum bands, is a key enabling technique for cognitive radio. This paper proposes a truncated ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16461456 | 0905.4745 | 2009-05-28 | A fast algorithm for computing minimal-norm solutions to underdetermined systems of linear equations | We introduce a randomized algorithm for computing the minimal-norm solution to an underdetermined system of linear equations. Given an arbitrary full-rank m x n matrix A with m<n, any m x 1 vector b, and any positive real number epsilon less than 1, the procedure computes an n x 1 vector x approximating to relative pre... | [
"cs.NA"
] | null | [
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{
"author_id": "m tygert_1",
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}
] | null |
2261788 | 0905.4627 | 2009-05-28 | CoPhIR: a Test Collection for Content-Based Image Retrieval | The scalability, as well as the effectiveness, of the different Content-based Image Retrieval (CBIR) approaches proposed in literature, is today an important research issue. Given the wealth of images on the Web, CBIR systems must in fact leap towards Web-scale datasets. In this paper, we report on our experience in bu... | [
"cs.MM",
"cs.IR"
] | null | [
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{
"author_id": "p bolettieri_1",
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{
"author_id": "a esuli_1",
"name": "Andrea Esuli",
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8673413 | 0905.4545 | 2009-05-28 | Minimum Distance and Convergence Analysis of Hamming-Accumulate-Acccumulate Codes | In this letter we consider the ensemble of codes formed by the serial concatenation of a Hamming code and two accumulate codes. We show that this ensemble is asymptotically good, in the sense that most codes in the ensemble have minimum distance growing linearly with the block length. Thus, the resulting codes achieve ... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "a amat_1",
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{
"author_id": "r bidan_1",
"name": "Raphaël [\"Le\"] Bidan",
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... | null |
6537702 | 0905.4947 | 2009-05-29 | Fluctuations and redundancy in optimal transport networks | The structure of networks that provide optimal transport properties has been investigated in a variety of contexts. While many different formulations of this problem have been considered, it is recurrently found that optimal networks are trees. It is shown here that this result is contingent on the assumption of a stat... | [
"physics.bio-ph",
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"q-bio.TO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
54494259 | 0905.4770 | 2009-05-29 | A wall crossing formula of Donaldson-Thomas invariants without Chern-Simons functional | We prove a wall crossing formula of Donaldson-Thomas type invariants without Chern-Simons functionals. | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2126041 | 0905.4911 | 2009-05-29 | A generalization of the Wiener rational basis functions on infinite intervals | We formulate and derive a generalization of an orthogonal rational-function basis for spectral expansions over the infinite or semi-infinite interval. The original functions, first presented by Wiener are a mapping and weighting of the Fourier basis to the infinite interval. By identifying the Fourier series as a biort... | [
"math.NA"
] | null | [
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{
"author_id": "a narayan_3",
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{
"author_id": "j hesthaven_1",
"name": "Jan [\"S.\"] Hesthaven",
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14611603 | 0906.0037 | 2009-05-29 | Asymptotic Capacity and Optimal Precoding in MIMO Multi-Hop Relay Networks | A multi-hop relaying system is analyzed where data sent by a multi-antenna source is relayed by successive multi-antenna relays until it reaches a multi-antenna destination. Assuming correlated fading at each hop, each relay receives a faded version of the signal from the previous level, performs linear precoding and r... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "n fawaz_1",
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{
"author_id": "k zarifi_1",
"name": "Keyvan Zarifi",
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15126067 | 0906.0006 | 2009-05-29 | Damage and fluctuations induce loops in optimal transport networks | Leaf venation is a pervasive example of a complex biological network, endowing leaves with a transport system and mechanical resilience. Transport networks optimized for efficiency have been shown to be trees, i.e. loopless. However, dicotyledon leaf venation has a large number of closed loops, which are functional and... | [
"physics.bio-ph",
"cond-mat.dis-nn",
"q-bio.TO"
] | null | [
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] | [] | [
{
"author_id": "e katifori_1",
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{
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"name": "Gergely [\"J.\"] Szöllősi",
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18151445 | 0905.4892 | 2009-05-29 | Degree-based graph construction | Degree-based graph construction is an ubiquitous problem in network modeling, ranging from social sciences to chemical compounds and biochemical reaction networks in the cell. This problem includes existence, enumeration, exhaustive construction and sampling questions with aspects that are still open today. Here we giv... | [
"math.CO",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
61930861 | 0906.0060 | 2009-05-29 | A Walk in Facebook: Uniform Sampling of Users in Online Social Networks | Our goal in this paper is to develop a practical framework for obtaining a uniform sample of users in an online social network (OSN) by crawling its social graph. Such a sample allows to estimate any user property and some topological properties as well. To this end, first, we consider and compare several candidate cra... | [
"cs.SI",
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"physics.data-an",
"physics.soc-ph",
"stat.ME"
] | null | [
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{
"author_id": "m gjoka_1",
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{
"author_id": "m kurant_1",
"name": "Maciej Kurant",
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6253257 | 0905.4930 | 2009-05-29 | Improved Approximation Algorithms for Segment Minimization in Intensity Modulated Radiation Therapy | he segment minimization problem consists of finding the smallest set of integer matrices that sum to a given intensity matrix, such that each summand has only one non-zero value, and the non-zeroes in each row are consecutive. This has direct applications in intensity-modulated radiation therapy, an effective form of c... | [
"cs.DS"
] | null | [
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] | [] | [
{
"author_id": "t biedl_1",
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{
"author_id": "s durocher_1",
"name": "Stephane Durocher",
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2844294 | 0905.4887 | 2009-05-29 | Persistent Cohomology and Circular Coordinates | Nonlinear dimensionality reduction (NLDR) algorithms such as Isomap, LLE and Laplacian Eigenmaps address the problem of representing high-dimensional nonlinear data in terms of low-dimensional coordinates which represent the intrinsic structure of the data. This paradigm incorporates the assumption that real-valued coo... | [
"math.AT",
"cs.CG"
] | null | [
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] | [] | [
{
"author_id": "v silva_6",
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{
"author_id": "d morozov_4",
"name": "Dmitriy Morozov",
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"h_index": null,
"num_papers": nu... | null |
119189800 | 0905.4839 | 2009-05-29 | Fault tolerant architectures for superconducting qubits | In this short review, I draw attention to new developments in the theory of fault tolerance in quantum computation that may give concrete direction to future work in the development of superconducting qubit systems. The basics of quantum error correction codes, which I will briefly review, have not significantly change... | [
"quant-ph",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119230488 | 0906.0056 | 2009-05-30 | Entropic origin of stress correlations in granular materials | We study the response of granular materials to external stress using experiment, simulation, and theory. We derive an entropic, Ginzburg-Landau functional that enforces mechanical stability and positivity of contact forces. In this framework, the elastic moduli depend only on the applied stress. A combination of this f... | [
"cond-mat.stat-mech",
"cond-mat.soft"
] | null | [
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] | [] | [
{
"author_id": "g lois_1",
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{
"author_id": "j zhang_98",
"name": "Jie Zhang",
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"h_index": null,
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"num_cit... | null |
33263305 | 0906.0175 | 2009-05-31 | Residual noise covariance for Planck low-resolution data analysis | Aims: Develop and validate tools to estimate residual noise covariance in Planck frequency maps. Quantify signal error effects and compare different techniques to produce low-resolution maps. Methods: We derive analytical estimates of covariance of the residual noise contained in low-resolution maps produced using a nu... | [
"astro-ph.CO",
"astro-ph.IM"
] | null | [
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{
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{
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{
"corpus_id": "9050356",
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{
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{
"author_id": "r keskitalo_1",
"name": "Reijo Keskitalo",
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17670442 | 0906.0148 | 2009-05-31 | Central Configurations of the Five-Body Problem with Equal Masses | In this paper we present a complete classification of the isolated central configurations of the five-body problem with equal masses. This is accomplished by using the polyhedral homotopy method to approximate all the isolated solutions of the Albouy-Chenciner equations. The existence of exact solutions, in a neighborh... | [
"math-ph",
"math.MP"
] | null | [
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] | [
{
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] | [
{
"author_id": "t lee_65",
"name": "Tsung-Lin Lee",
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{
"author_id": "m santoprete_1",
"name": "Manuele Santoprete",
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"h_index": null,
"num_papers": nu... | null |
16193481 | 0906.0180 | 2009-05-31 | Best attainable rates of convergence for the estimation of the memory parameter | The purpose of this note is to prove a lower bound for the estimation of the memory parameter of a stationary long memory process. The memory parameter is defined here as the index of regular variation of the spectral density at 0. The rates of convergence obtained in the literature assume second order regular variatio... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6475685 | 0906.0174 | 2009-05-31 | Block regularization of the Kepler problem on surfaces of revolution with positive constant curvature | We consider the Kepler problem on surfaces of revolution that are homeomorphic to $S^2$ and have constant Gaussian curvature. We show that the system is maximally superintegrable, finding constants of motion that generalize the Runge-Lentz vector. Then, using such first integrals, we determine the class of surfaces tha... | [
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"math.MP"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m santoprete_1",
"name": "Manuele Santoprete",
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"num_citations": null
}
] | null |
119281652 | 0906.0312 | 2009-06-01 | A Compton-thick Wind in the High Luminosity Quasar, PDS 456 | PDS 456 is a nearby (z=0.184), luminous (L_bol ~10^47 erg/s) type I quasar. A deep 190 ks Suzaku observation in February 2007 revealed the complex, broad band X-ray spectrum of PDS 456. The Suzaku spectrum exhibits highly statistically significant absorption features near 9 keV in the quasar rest--frame. We show that t... | [
"astro-ph.HE",
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118480512 | 0906.0201 | 2009-06-01 | A Spitzer Survey of Young Stellar Clusters within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis | We present a uniform mid-infrared imaging and photometric survey of 36 young, nearby, star-forming clusters and groups using {\it Spitzer} IRAC and MIPS. We have confidently identified and classified 2548 young stellar objects using recently established mid-infrared color-based methods. We have devised and applied a ne... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
42944085 | 0906.0337 | 2009-06-01 | Classification of Abelian and Non-Abelian Multilayer Fractional Quantum Hall States Through the Pattern of Zeros | A large class of fractional quantum Hall (FQH) states can be classified according to their pattern of zeros, which describes the way ideal ground state wave functions go to zero as various clusters of electrons are brought together. In this paper we generalize this approach to classify multilayer FQH states. Such a cla... | [
"cond-mat.mes-hall",
"cond-mat.str-el"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m barkeshli_1",
"name": "Maissam Barkeshli",
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},
{
"author_id": "x wen_8",
"name": "Xiao-Gang Wen",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
5838580 | 0906.0249 | 2009-06-01 | Faster Projection in Sphere Decoding | Most of the calculations in standard sphere decoders are redundant, in the sense that they either calculate quantities that are never used or calculate some quantities more than once. A new method, which is applicable to lattices as well as finite constellations, is proposed to avoid these redundant calculations while ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119255148 | 0906.0306 | 2009-06-01 | Optically-passive spirals: The missing link in gradual star formation suppression upon cluster infall | Galaxies migrate from the blue cloud to the red sequence when their star formation is quenched. Here, we report on galaxies quenched by environmental effects and not by mergers or strong AGN as often invoked: They form stars at a reduced rate which is optically even less conspicuous, and manifest a transition populatio... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c wolf_3",
"name": "Christian Wolf",
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},
{
"author_id": "a arag'on-salamanca_1",
"name": "Alfonso Arag'on-Salamanca",
"publication_history": null,
"h_index": null,
"... | null |
14881113 | 0906.0341 | 2009-06-01 | A Universal Mass Profile for Dwarf Spheroidal Galaxies? | (abridged) We apply the Jeans equation to estimate masses for eight of the brightest dSph galaxies. For Fornax we obtain a model-independent constraint on the maximum-circular velocity, Vmax=18_{-3}^{+5} km/s. Although we obtain only lower-limits of Vmax > 10 km/s for the remaining dSphs, we find that in all cases the ... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14226395 | 0906.0356 | 2009-06-01 | Non-Abelian Two-component Fractional Quantum Hall States | A large class of fractional quantum Hall (FQH) states can be classified according to their pattern of zeros, which describes the order of zeros in ground state wave functions as various clusters of electrons are brought together. The pattern-of-zeros approach can be generalized to systematically classify multilayer/spi... | [
"cond-mat.mes-hall",
"cond-mat.str-el"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m barkeshli_1",
"name": "Maissam Barkeshli",
"publication_history": null,
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},
{
"author_id": "x wen_8",
"name": "Xiao-Gang Wen",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
1680743 | 0906.0330 | 2009-06-01 | Information-Theoretic Inequalities on Unimodular Lie Groups | Classical inequalities used in information theory such as those of de Bruijn, Fisher, and Kullback carry over from the setting of probability theory on Euclidean space to that of unimodular Lie groups. These are groups that posses integration measures that are invariant under left and right shifts, which means that eve... | [
"cs.IT",
"math-ph",
"math.IT",
"math.MP"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g chirikjian_1",
"name": "Gregory [\"S.\"] Chirikjian",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
118555023 | 0906.0232 | 2009-06-01 | Constraining Running Non-Gaussianity | The primordial non-Gaussian parameter fNL has been shown to be scale-dependent in several models of inflation with a variable speed of sound. Starting from a simple ansatz for a scale-dependent amplitude of the primordial curvature bispectrum for two common phenomenological models of primordial non-Gaussianity, we perf... | [
"astro-ph.CO",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
443976 | 0906.0531 | 2009-06-02 | Medium Access Control Protocols With Memory | Many existing medium access control (MAC) protocols utilize past information (e.g., the results of transmission attempts) to adjust the transmission parameters of users. This paper provides a general framework to express and evaluate distributed MAC protocols utilizing a finite length of memory for a given form of feed... | [
"cs.NI",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "j park_116",
"name": "Jaeok Park",
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},
{
"author_id": "m schaar_1",
"name": "Mihaela [\"van\",\"der\"] Schaar",
"publication_history": null,
"h_index": null,
"num_pa... | null |
115160336 | 0906.0510 | 2009-06-02 | Random matrices: Universality of local eigenvalue statistics | In this paper, we consider the universality of the local eigenvalue statistics of random matrices. Our main result shows that these statistics are determined by the first four moments of the distribution of the entries. As a consequence, we derive the universality of eigenvalue gap distribution and $k$-point correlatio... | [
"math.PR"
] | null | [
"target.key_reference"
] | null | null | null |
15662098 | 0906.0398 | 2009-06-02 | High-fidelity quantum control using ion crystals in a Penning trap | We discuss the use of two-dimensional $^{9}$Be$^{+}$ ion crystals for experimental tests of quantum control techniques. Our primary qubit is the 124 GHz ground-state electron spin flip transition, which we drive using microwaves. An ion crystal represents a spatial ensemble of qubits, but the effects of inhomogeneities... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [
{
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{
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{
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{
"corpus_id": "118397788",
"num_citations": null
},
{
"corpus_id": "118450707",
"num_citations": null
... | [
{
"author_id": "m biercuk_1",
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{
"author_id": "h uys_1",
"name": "Hermann Uys",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
216051272 | 0906.0447 | 2009-06-02 | Methodologies for Analyzing Equilibria in Wireless Games | Under certain assumptions in terms of information and models, equilibria correspond to possible stable outcomes in conflicting or cooperative scenarios where rational entities interact. For wireless engineers, it is of paramount importance to be able to predict and even ensure such states at which the network will effe... | [
"cs.GT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s lasaulce_1",
"name": "Samson Lasaulce",
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},
{
"author_id": "m debbah_1",
"name": "Mérouane Debbah",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
6276736 | 0906.0527 | 2009-06-02 | Neuronal avalanches imply maximum dynamic range in cortical networks at criticality | Spontaneous neuronal activity is a ubiquitous feature of cortex. Its spatiotemporal organization reflects past input and modulates future network output. Here we study whether a particular type of spontaneous activity is generated by a network that is optimized for input processing. Neuronal avalanches are a type of sp... | [
"q-bio.NC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14106905 | 0906.0557 | 2009-06-02 | An Axiomatic Theory of Fairness in Network Resource Allocation | We present a set of five axioms for fairness measures in resource allocation. A family of fairness measures satisfying the axioms is constructed. Well-known notions such as alpha-fairness, Jain's index, and entropy are shown to be special cases. Properties of fairness measures satisfying the axioms are proven, includin... | [
"cs.NI",
"cs.PF"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7772489 | 0906.0592 | 2009-06-02 | Correlation-dependent coherent to incoherent transitions in resonant energy transfer dynamics | I investigate energy transfer in a donor-acceptor pair beyond weak system-bath coupling. I identify a transition from coherent to incoherent dynamics with increasing temperature, due to multi-phonon effects not captured by a standard weak-coupling treatment. The crossover temperature has a marked dependence on the degr... | [
"cond-mat.mes-hall",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17548209 | 0906.0441 | 2009-06-02 | Noisy continuous--opinion dynamics | We study the Deffuant et al. model for continuous--opinion dynamics under the influence of noise. In the original version of this model, individuals meet in random pairwise encounters after which they compromise or not depending of a confidence parameter. Free will is introduced in the form of noisy perturbations: indi... | [
"physics.soc-ph",
"cond-mat.stat-mech",
"nlin.CG"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m pineda_1",
"name": "Miguel Pineda",
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"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r toral_1",
"name": "Raúl Toral",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
14409027 | 0906.0498 | 2009-06-02 | Substructure revealed by RR Lyraes in SDSS Stripe 82 | We present an analysis of the substructure revealed by 407 RR Lyraes in Sloan Digital Sky Survey (SDSS) Stripe 82. Period estimates are determined to high accuracy using a string-length method. A subset of 178 RR Lyraes with spectrally derived metallicities are employed to derive metallicity-period-amplitude relations,... | [
"astro-ph.GA",
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15023354 | 0906.0476 | 2009-06-02 | Functional inequalities and Hamilton-Jacobi Equations in Geodesic Spaces | We study the connection between the $p$--Talagrand inequality and the $q$--logarithmic Sololev inequality for conjugate exponents $p\geq 2$, $q\leq 2$ in proper geodesic metric spaces. By means of a general Hamilton--Jacobi semigroup we prove that these are equivalent, and moreover equivalent to the hypercontractivity ... | [
"math.FA",
"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
31457883 | 0906.0389 | 2009-06-02 | Unambiguous Formalism for Higher-Order Lagrangian Field Theories | The aim of this paper is to propose an unambiguous intrinsic formalism for higher-order field theories which avoids the arbitrariness in the generalization of the conventional description of field theories, which implies the existence of different Cartan forms and Legendre transformations. We propose a differential-geo... | [
"math.DG",
"math-ph",
"math.MP",
"math.SG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c campos_3",
"name": "Cédric [\"M.\"] Campos",
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},
{
"author_id": "m de león_0",
"name": "Manuel de León",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
2505611 | 0906.0744 | 2009-06-03 | Ergodic Fading Interference Channels: Sum-Capacity and Separability | The sum-capacity for specific sub-classes of ergodic fading Gaussian two-user interference channels (IFCs) is developed under the assumption of perfect channel state information at all transmitters and receivers. For the sub-classes of uniformly strong (every fading state is strong) and ergodic very strong two-sided IF... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "11431483",
"num_citations": null
}
] | [
{
"author_id": "l sankar_1",
"name": "L. Sankar",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "x shang_7",
"name": "Xiaohu Shang",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
16027650 | 0906.0658 | 2009-06-03 | Asymptotic Implied Volatility at the Second Order with Application to the SABR Model | We provide a general method to compute a Taylor expansion in time of implied volatility for stochastic volatility models, using a heat kernel expansion. Beyond the order 0 implied volatility which is already known, we compute the first order correction exactly at all strikes from the scalar coefficient of the heat kern... | [
"q-fin.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10211629 | 0906.0612 | 2009-06-03 | Community detection in graphs | The modern science of networks has brought significant advances to our understanding of complex systems. One of the most relevant features of graphs representing real systems is community structure, or clustering, i. e. the organization of vertices in clusters, with many edges joining vertices of the same cluster and c... | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.IR",
"physics.bio-ph",
"physics.comp-ph",
"q-bio.QM"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
14092993 | 0906.0711 | 2009-06-03 | An Algebraic Framework for Discrete Tomography: Revealing the Structure of Dependencies | Discrete tomography is concerned with the reconstruction of images that are defined on a discrete set of lattice points from their projections in several directions. The range of values that can be assigned to each lattice point is typically a small discrete set. In this paper we present a framework for studying these ... | [
"math.CO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a stolk_0",
"name": "Arjen Stolk",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "k batenburg_1",
"name": "Kees [\"Joost\"] Batenburg",
"publication_history": null,
"h_index": null,
"num_paper... | null |
18028724 | 0906.0730 | 2009-06-03 | Protoplanetary Disk Structures in Ophiuchus | We present a high angular resolution (0.3" = 40 AU) SMA survey of the 870 micron thermal continuum emission from 9 of the brightest, and therefore most massive, circumstellar disks in the ~1 Myr-old Ophiuchus star-forming region. Using 2-D radiative transfer calculations, we simultaneously fit the observed continuum vi... | [
"astro-ph.EP",
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14804981 | 0906.0766 | 2009-06-03 | Radius determination of solar-type stars using asteroseismology: What to expect from the Kepler mission | For distant stars, as observed by the NASA Kepler satellite, parallax information is currently of fairly low quality and is not complete. This limits the precision with which the absolute sizes of the stars and their potential transiting planets can be determined by traditional methods. Asteroseismology will be used to... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16336895 | 0906.0840 | 2009-06-03 | Soft-Input Soft-Output Single Tree-Search Sphere Decoding | Soft-input soft-output (SISO) detection algorithms form the basis for iterative decoding. The computational complexity of SISO detection often poses significant challenges for practical receiver implementations, in particular in the context of multiple-input multiple-output (MIMO) wireless communication systems. In thi... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18918991 | 0906.0747 | 2009-06-03 | The Fourier state of a dilute granular gas described by the inelastic Boltzmann equation | The existence of two stationary solutions of the nonlinear Boltzmann equation for inelastic hard spheres or disks is investigated. They are restricted neither to weak dissipation nor to small gradients. The one-particle distribution functions are assumed to have an scaling property, namely that all the position depende... | [
"cond-mat.soft",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j brey_1",
"name": "José [\"Javier\"] Brey",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "n khalil_1",
"name": "Nagi Khalil",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
8708443 | 1005.0829 | 2009-06-03 | Transductive versions of the LASSO and the Dantzig Selector | Transductive methods are useful in prediction problems when the training dataset is composed of a large number of unlabeled observations and a smaller number of labeled observations. In this paper, we propose an approach for developing transductive prediction procedures that are able to take advantage of the sparsity i... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p alquier_1",
"name": "Pierre Alquier",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m hebiri_1",
"name": "Mohamed Hebiri",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
7764304 | 0906.0803 | 2009-06-04 | Galaxy clusters identified from the SDSS DR6 and their properties | Clusters of galaxies in most previous catalogs have redshifts z<0.3. Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we identify 39,668 clusters in the redshift range 0.05< z <0.6 with more than eight luminous (M_r<-21) member galaxies. Cluster redshifts are esti... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11937210 | 0906.0872 | 2009-06-04 | Fast Weak Learner Based on Genetic Algorithm | An approach to the acceleration of parametric weak classifier boosting is proposed. Weak classifier is called parametric if it has fixed number of parameters and, so, can be represented as a point into multidimensional space. Genetic algorithm is used instead of exhaustive search to learn parameters of such classifier.... | [
"cs.LG",
"cs.NE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b yangel_1",
"name": "Boris Yangel",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
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