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 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
54021878 | 0811.4731 | 2008-11-28 | Coherence of single spins coupled to a nuclear spin bath of varying density | The dynamics of single electron and nuclear spins in a diamond lattice with different 13C nuclear spin concentration is investigated. It is shown that coherent control of up to three individual nuclei in a dense nuclear spin cluster is feasible. The free induction decays of nuclear spin Bell states and single nuclear c... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7010360 | 0811.4681 | 2008-11-28 | The Good, the Bad, and the Ugly: three different approaches to break their watermarking system | The Good is Blondie, a wandering gunman with a strong personal sense of honor. The Bad is Angel Eyes, a sadistic hitman who always hits his mark. The Ugly is Tuco, a Mexican bandit who's always only looking out for himself. Against the backdrop of the BOWS contest, they search for a watermark in gold buried in three im... | [
"cs.GR",
"cs.MM"
] | null | [
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{
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"name": "Gaëtan [\"Le\"] Guelvouit",
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{
"author_id": "t furon_1",
"name": "Teddy Furon",
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1622550 | 0811.4724 | 2008-11-28 | Generalized power method for sparse principal component analysis | In this paper we develop a new approach to sparse principal component analysis (sparse PCA). We propose two single-unit and two block optimization formulations of the sparse PCA problem, aimed at extracting a single sparse dominant principal component of a data matrix, or more components at once, respectively. While th... | [
"math.OC"
] | null | [
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1992225 | 0811.4702 | 2008-11-28 | Information-theoretic resolution of perceptual WSS watermarking of non i.i.d. Gaussian signals | The theoretical foundations of data hiding have been revealed by formulating the problem as message communication over a noisy channel. We revisit the problem in light of a more general characterization of the watermark channel and of weighted distortion measures. Considering spread spectrum based information hiding, w... | [
"cs.IT",
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{
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"author_id": "s pateux_1",
"name": "Stéphane Pateux",
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15453338 | 0811.4665 | 2008-11-28 | Rapid Formation of Icy Super-Earths and the Cores of Gas Giant Planets | We describe a coagulation model that leads to the rapid formation of super-Earths and the cores of gas giant planets. Interaction of collision fragments with the gaseous disk is the crucial element of this model. The gas entrains small collision fragments, which rapidly settle to the disk midplane. Protoplanets accrete... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2098388 | 0812.0198 | 2008-11-30 | Convergence to Equilibrium in Local Interaction Games and Ising Models | Coordination games describe social or economic interactions in which the adoption of a common strategy has a higher payoff. They are classically used to model the spread of conventions, behaviors, and technologies in societies. Here we consider a two-strategies coordination game played asynchronously between the nodes ... | [
"cs.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13346594 | 0812.0147 | 2008-11-30 | Complete convergence of message passing algorithms for some satisfiability problems | In this paper we analyze the performance of Warning Propagation, a popular message passing algorithm. We show that for 3CNF formulas drawn from a certain distribution over random satisfiable 3CNF formulas, commonly referred to as the planted-assignment distribution, running Warning Propagation in the standard way (run ... | [
"math.PR"
] | null | [
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{
"author_id": "u feige_1",
"name": "Uriel Feige",
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"author_id": "e mossel_1",
"name": "Elchanan Mossel",
"publication_history": null,
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... | null |
850922 | 0812.0329 | 2008-12-01 | Block-Sparsity: Coherence and Efficient Recovery | We consider compressed sensing of block-sparse signals, i.e., sparse signals that have nonzero coefficients occuring in clusters. Based on an uncertainty relation for block-sparse signals, we define a block-coherence measure and we show that a block-version of the orthogonal matching pursuit algorithm recovers block k-... | [
"cs.IT",
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] | null | [
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] | null | null | null |
15710562 | 0812.0350 | 2008-12-01 | Uniform Time Average Consistency of Monte Carlo Particle Filters | We prove that bootstrap type Monte Carlo particle filters approximate the optimal nonlinear filter in a time average sense uniformly with respect to the time horizon when the signal is ergodic and the particle system satisfies a tightness property. The latter is satisfied without further assumptions when the signal sta... | [
"math.PR",
"math.ST",
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] | null | [
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] | null | null | null |
9263435 | 0812.0331 | 2008-12-01 | Coarse-grained models for fluids and their mixtures: Comparison of Monte Carlo studies of their phase behavior with perturbation theory and experiment | The prediction of the equation of state and the phase behavior of simple fluids (noble gases, carbon dioxide, benzene, methane, short alkane chains) and their mixtures by Monte Carlo computer simulation and analytic approximations based on thermodynamic perturbation theory is discussed. Molecules are described by coars... | [
"cond-mat.stat-mech"
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{
"author_id": "b mognetti_1",
"name": "Bortolo [\"Matteo\"] Mognetti",
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"author_id": "p virnau_1",
"name": "Peter Virnau",
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690816 | 0812.0389 | 2008-12-01 | Approximation Algorithms for Bregman Co-clustering and Tensor Clustering | In the past few years powerful generalizations to the Euclidean k-means problem have been made, such as Bregman clustering [7], co-clustering (i.e., simultaneous clustering of rows and columns of an input matrix) [9,18], and tensor clustering [8,34]. Like k-means, these more general problems also suffer from the NP-har... | [
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{
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"name": "Suvrit Sra",
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"... | null |
20982845 | 0812.0244 | 2008-12-01 | Efficient implementation of a van der Waals density functional: Application to double-wall carbon nanotubes | We present an efficient implementation of the van der Waals density functional of Dion et al [Phys. Rev. Lett. 92, 246401 (2004)], which expresses the nonlocal correlation energy as a double spacial integral. We factorize the integration kernel and use fast Fourier transforms to evaluate the selfconsistent potential, t... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
414699 | 0812.0319 | 2008-12-01 | Secrecy Capacity of a Class of Broadcast Channels with an Eavesdropper | We study the security of communication between a single transmitter and multiple receivers in a broadcast channel in the presence of an eavesdropper. We consider several special classes of channels. As the first model, we consider the degraded multi-receiver wiretap channel where the legitimate receivers exhibit a degr... | [
"cs.IT",
"math.IT"
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{
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"author_id": "s ulukus_1",
"name": "Sennur Ulukus",
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"n... | null |
26529332 | 0812.0223 | 2008-12-01 | Universal Correlations and Dynamic Disorder in a Nonlinear Periodic 1D System | When a periodic 1D system described by a tight-binding model is uniformly initialized with equal amplitudes at all sites, yet with completely random phases, it evolves into a thermal distribution with no spatial correlations. However, when the system is nonlinear, correlations are spontaneously formed. We find that for... | [
"cond-mat.dis-nn"
] | null | [
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{
"author_id": "y silberberg_1",
"name": "Yaron [\"R.\"] Silberberg",
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{
"author_id": "y lahini_1",
"name": "Yoav Lahini",
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115528465 | 0812.0471 | 2008-12-02 | V^0 production in p+A collisions at \sqrt{s} = 41.6 GeV | Inclusive doubly differential cross sections d^2\sigma_{pA}/dx_Fdp_T^2 as a function of Feynman-x (x_F) and transverse momentum (p_T) for the production of K^0_s, Lambda^0 and anti-Lambda^0 in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x_F range (-0.1... | [
"hep-ex"
] | null | [
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] | [] | [
{
"author_id": "i abt_1",
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{
"author_id": "m adams_9",
"name": "M. [\"R.\"] Adams",
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8212356 | 0812.0423 | 2008-12-02 | A proximal method for composite minimization | We consider minimization of functions that are compositions of convex or prox-regular functions (possibly extended-valued) with smooth vector functions. A wide variety of important optimization problems fall into this framework. We describe an algorithmic framework based on a subproblem constructed from a linearized ap... | [
"math.OC",
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] | null | [
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] | null | null | null |
14646685 | 0812.0491 | 2008-12-02 | SDSS White Dwarf mass distribution at low effective temperatures | The DA white dwarfs in the Sloan Digital Sky Survey, as analyzed in the papers for Data Releases 1 and 4, show an increase in surface gravity towards lower effective temperatures below 11500 K. We study the various possible explanations of this effect, from a real increase of the masses to uncertainties or deficiencies... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12224822 | 0812.0570 | 2008-12-02 | Fermions in higher representations. Some results about SU(2) with adjoint fermions | We discuss the lattice formulation of gauge theories with fermions in arbitrary representations of the color group, and present the implementation of the RHMC algorithm for simulating dynamical Wilson fermions. A first dataset is presented for the SU(2) gauge theory with two fermions in the adjoint representation, whic... | [
"hep-lat"
] | null | [
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] | [
{
"corpus_id": "14622288",
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{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
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"author_id": "a patella_1",
"name": "Agostino Patella",
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5898898 | 0812.0621 | 2008-12-02 | Channel Estimation and Linear Precoding in Multiuser Multiple-Antenna TDD Systems | Traditional approaches in the analysis of downlink systems decouple the precoding and the channel estimation problems. However, in cellular systems with mobile users, these two problems are in fact tightly coupled. In this paper, this coupling is explicitly studied by accounting for channel training overhead and estima... | [
"cs.IT",
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{
"author_id": "j jose_2",
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{
"author_id": "a ashikhmin_1",
"name": "Alexei [\"E.\"] Ashikhmin",
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15209669 | 0812.0598 | 2008-12-02 | Preference Games and Personalized Equilibria, with Applications to Fractional BGP | We study the complexity of computing equilibria in two classes of network games based on flows - fractional BGP (Border Gateway Protocol) games and fractional BBC (Bounded Budget Connection) games. BGP is the glue that holds the Internet together and hence its stability, i.e. the equilibria of fractional BGP games (Hax... | [
"cs.GT",
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] | null | [
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] | [
{
"corpus_id": "270652",
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{
"author_id": "l poplawski_1",
"name": "Laura [\"J.\"] Poplawski",
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{
"author_id": "r rajaraman_1",
"name": "Rajmohan Rajaraman",
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"h_index": null,
"... | null |
18161183 | 0812.0578 | 2008-12-02 | NLO Higgs boson production via gluon fusion matched with shower in POWHEG | We present a next-to-leading order calculation of Higgs boson production via gluon fusion interfaced to shower Monte Carlo programs, implemented according to the POWHEG method. A detailed comparison with MC@NLO and PYTHIA is carried out for several observables, for the Tevatron and LHC colliders. Comparisons with next-... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18679928 | 0812.0617 | 2008-12-02 | The Capacity Region of the Cognitive Z-interference Channel with One Noiseless Component | We study the discrete memoryless Z-interference channel (ZIC) where the transmitter of the pair that suffers from interference is cognitive. We first provide upper and lower bounds on the capacity of this channel. We then show that, when the channel of the transmitter-receiver pair that does not face interference is no... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "n liu_6",
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{
"author_id": "i marić_1",
"name": "Ivana Marić",
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119276170 | 0812.0401 | 2008-12-02 | Laser-driven high-power X- and gamma-ray ultra-short pulse source | A novel ultra-bright high-intensity source of X-ray and gamma radiation is suggested. It is based on the double Doppler effect, where a relativistic flying mirror reflects a counter-propagating electromagnetic radiation causing its frequency multiplication and intensification, and on the inverse double Doppler effect, ... | [
"physics.plasm-ph",
"physics.acc-ph",
"physics.space-ph"
] | null | [
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{
"author_id": "t esirkepov_1",
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"author_id": "s bulanov_1",
"name": "S. [\"V.\"] Bulanov",
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14159561 | 0812.0600 | 2008-12-03 | The Experimental Status of Glueballs | Glueballs and other resonances with large gluonic components are predicted as bound states by Quantum Chromodynamics (QCD). The lightest (scalar) glueball is estimated to have a mass in the range from 1 to 2 GeV/c**2; a pseudoscalar and tensor glueball are expected at higher masses. Many different experiments exploitin... | [
"hep-ex",
"nucl-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14705452 | 0812.0754 | 2008-12-03 | Strong Spatial Mixing and Approximating Partition Functions of Two-State Spin Systems without Hard Constrains | We prove Gibbs distribution of two-state spin systems(also known as binary Markov random fields) without hard constrains on a tree exhibits strong spatial mixing(also known as strong correlation decay), under the assumption that, for arbitrary `external field', the absolute value of `inverse temperature' is small, or t... | [
"cs.DM",
"cs.GR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14376651 | 0812.0649 | 2008-12-03 | The Seventh Data Release of the Sloan Digital Sky Survey | This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11663 deg^2 of imaging data, with most of the roughly 2000 deg^2 increment over the previous data release lying in regions... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
29004490 | 0812.0814 | 2008-12-03 | AzTEC Millimetre Survey of the COSMOS Field - II. Source Count Overdensity and Correlations with Large-Scale Structure | We report an over-density of bright sub-millimetre galaxies (SMGs) in the 0.15 sq. deg. AzTEC/COSMOS survey and a spatial correlation between the SMGs and the optical-IR galaxy density at z <~ 1.1. This portion of the COSMOS field shows a ~ 3-sigma over-density of robust SMG detections when compared to a background, or... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2057624 | 0812.0698 | 2008-12-03 | Emergent Community Structure in Social Tagging Systems | A distributed classification paradigm known as collaborative tagging has been widely adopted in new Web applications designed to manage and share online resources. Users of these applications organize resources (Web pages, digital photographs, academic papers) by associating with them freely chosen text labels, or tags... | [
"cs.IR",
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"cs.HC"
] | null | [
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{
"author_id": "c cattuto_1",
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"author_id": "a baldassarri_1",
"name": "Andrea Baldassarri",
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"num_papers":... | null |
14207477 | 0812.0933 | 2008-12-04 | Decision trees are PAC-learnable from most product distributions: a smoothed analysis | We consider the problem of PAC-learning decision trees, i.e., learning a decision tree over the n-dimensional hypercube from independent random labeled examples. Despite significant effort, no polynomial-time algorithm is known for learning polynomial-sized decision trees (even trees of any super-constant size), even w... | [
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"cs.CC"
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{
"author_id": "a kalai_1",
"name": "Adam [\"Tauman\"] Kalai",
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{
"author_id": "s teng_1",
"name": "Shang-Hua Teng",
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"num_papers": n... | null |
14364215 | 0812.1012 | 2008-12-04 | Adaptive Uncertainty Resolution in Bayesian Combinatorial Optimization Problems | In several applications such as databases, planning, and sensor networks, parameters such as selectivity, load, or sensed values are known only with some associated uncertainty. The performance of such a system (as captured by some objective function over the parameters) is significantly improved if some of these param... | [
"cs.DS"
] | null | [
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{
"author_id": "s guha_2",
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{
"author_id": "k munagala_1",
"name": "Kamesh Munagala",
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... | null |
17568906 | 0812.0912 | 2008-12-04 | Achieving control of in-plane elastic waves | We derive the elastic properties of a cylindrical cloak for in-plane coupled shear and pressure waves. The cloak is characterized by a rank 4 elasticity tensor with 16 spatially varying entries which are deduced from a geometric transform. Remarkably, the Navier equations retain their form under this transform, which i... | [
"cond-mat.mtrl-sci"
] | null | [
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] | null | null | null |
17456219 | 0812.0917 | 2008-12-04 | An excess of emission in the dark cloud LDN 1111 with the Arcminute Microkelvin Imager | We present observations of the Lynds' dark nebula LDN 1111 made at microwave frequencies between 14.6 and 17.2 GHz with the Arcminute Microkelvin Imager (AMI). We find emission in this frequency band in excess of a thermal free--free spectrum extrapolated from data at 1.4 GHz with matched uv-coverage. This excess is > ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8509164 | 0812.1010 | 2008-12-04 | De-Trending Time Series for Astronomical Variability Surveys | We present a de-trending algorithm for the removal of trends in time series. Trends in time series could be caused by various systematic and random noise sources such as cloud passages, changes of airmass, telescope vibration or CCD noise. Those trends undermine the intrinsic signals of stars and should be removed. We ... | [
"astro-ph"
] | null | [
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{
"author_id": "d kim_51",
"name": "Dae-Won Kim",
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{
"author_id": "p protopapas_1",
"name": "Pavlos Protopapas",
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17638455 | 0812.1030 | 2008-12-04 | Mistuning-based Control Design to Improve Closed-Loop Stability of Vehicular Platoons | We consider a decentralized bidirectional control of a platoon of N identical vehicles moving in a straight line. The control objective is for each vehicle to maintain a constant velocity and inter-vehicular separation using only the local information from itself and its two nearest neighbors. Each vehicle is modeled a... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14458933 | 0812.0843 | 2008-12-04 | A Quirky Little Higgs Model | We consider an extra dimensional model where the quadratically divergent top loop contribution to the Higgs mass is cancelled by an uncolored heavy "top quirk" charged under a different SU(3) gauge group. The cancellation is enforced by bulk gauge symmetries. Thus we have an unusual type of little Higgs model which has... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6145345 | 0812.1029 | 2008-12-04 | Uncovering protein interaction in abstracts and text using a novel linear model and word proximity networks | We participated in three of the protein-protein interaction subtasks of the Second BioCreative Challenge: classification of abstracts relevant for protein-protein interaction (IAS), discovery of protein pairs (IPS) and text passages characterizing protein interaction (ISS) in full text documents. We approached the abst... | [
"cs.IR",
"cs.LG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15590454 | 0812.1043 | 2008-12-04 | Algebraic Methods in Discrete Analogs of the Kakeya Problem | We prove the joints conjecture, showing that for any $N$ lines in ${\Bbb R}^3$, there are at most $O(N^{{3 \over 2}})$ points at which 3 lines intersect non-coplanarly. We also prove a conjecture of Bourgain showing that given $N^2$ lines in ${\Bbb R}^3$ so that no $N$ lines lie in the same plane and so that each line ... | [
"math.CO",
"math.CA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14242499 | 0812.0854 | 2008-12-04 | The evolution of the Galactic metallicity gradient from high-resolution spectroscopy of open clusters | Open clusters offer a unique possibility to study the time evolution of the radial metallicity gradients of several elements in our Galaxy, because they span large intervals in age and Galactocentric distance, and both quantities can be more accurately derived than for field stars. We re-address the issue of the Galact... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8242663 | 0812.1203 | 2008-12-05 | An Efficient Adaptive Distributed Space-Time Coding Scheme for Cooperative Relaying | A non-regenerative dual-hop wireless system based on a distributed space-time coding strategy is considered. It is assumed that each relay retransmits an appropriately scaled space-time coded version of its received signal. The main goal of this paper is to investigate a power allocation strategy in relay stations, whi... | [
"cs.IT",
"math.IT"
] | null | [
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17307192 | 0812.1052 | 2008-12-05 | The Coyote Universe I: Precision Determination of the Nonlinear Matter Power Spectrum | Near-future cosmological observations targeted at investigations of dark energy pose stringent requirements on the accuracy of theoretical predictions for the clustering of matter. Currently, N-body simulations comprise the only viable approach to this problem. In this paper we demonstrate that N-body simulations can i... | [
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115155751 | 0812.1185 | 2008-12-05 | Calculus with a Quaternionic Variable | Most of theoretical physics is based on the mathematics of functions of a real or a complex variable; yet we frequently are drawn to try extending our reach to include quaternions. The non-commutativity of the quaternion algebra poses obstacles for the usual manipulations of calculus; but we show in this paper how many... | [
"math.FA"
] | null | [
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] | null | null | null |
17712689 | 0812.1091 | 2008-12-05 | Communicating the Difference of Correlated Gaussian Sources Over a MAC | This paper considers the problem of transmitting the difference of two jointly Gaussian sources over a two-user additive Gaussian noise multiple access channel (MAC). The goal is to recover this difference within an average mean squared error distortion criterion. Each transmitter has access to only one of the two Gaus... | [
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1039513 | 0812.1242 | 2008-12-05 | Mapping change in large networks | Change is a fundamental ingredient of interaction patterns in biology, technology, the economy, and science itself: Interactions within and between organisms change; transportation patterns by air, land, and sea all change; the global financial flow changes; and the frontiers of scientific research change. Networks and... | [
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"name": "Carl [\"T.\"] Bergstrom",
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12565109 | 0812.1113 | 2008-12-05 | Dynamical density functional theory for molecular and colloidal fluids: a microscopic approach to fluid mechanics | In recent years, a number of dynamical density functional theories (DDFTs) have been developed for describing the dynamics of the one-body density of both colloidal and atomic fluids. In the colloidal case, the particles are assumed to have stochastic equations of motion and theories exist for both the case when the pa... | [
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1841403 | 0812.1194 | 2008-12-05 | Adversarial Scheduling in Evolutionary Game Dynamics | Consider a system in which players at nodes of an underlying graph G repeatedly play Prisoner's Dilemma against their neighbors. The players adapt their strategies based on the past behavior of their opponents by applying the so-called win-stay lose-shift strategy. This dynamics has been studied in (Kittock 94), (Dyer ... | [
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15565808 | 0812.1168 | 2008-12-05 | Langevin equation with colored noise for constant-temperature molecular dynamics simulations | We discuss the use of a Langevin equation with a colored (correlated) noise to perform constant-temperature molecular dynamics simulations. Since the equations of motion are linear in nature, it is easy to predict the response of a Hamiltonian system to such a thermostat and to tune at will the relaxation time of modes... | [
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35641949 | 0812.1118 | 2008-12-05 | Sensor Based on Extending the Concept of Fidelity to Classical Waves | We propose and demonstrate a remote sensor scheme by applying the quantum mechanical concept of fidelity loss to classical waves. The sensor makes explicit use of time-reversal invariance and spatial reciprocity in a wave chaotic system to sensitively and remotely measure the presence of small perturbations. The loss o... | [
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{
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21846774 | 0812.1246 | 2008-12-05 | Physical model of continuous two-qubit parity measurement in a cavity-QED network | We propose and analyze a physical implementation of two-qubit parity measurements as required for continuous error correction, assuming a setup in which the individual qubits are strongly coupled to separate optical cavities. A single optical probe beam scatters sequentially from the two cavities and the continuous par... | [
"quant-ph"
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15876283 | 0812.1072 | 2008-12-05 | Multiresolution community detection for megascale networks by information-based replica correlations | We use a Potts model community detection algorithm to accurately and quantitatively evaluate the hierarchical or multiresolution structure of a graph. Our multiresolution algorithm calculates correlations among multiple copies ("replicas") of the same graph over a range of resolutions. Significant multiresolution struc... | [
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119250612 | 0812.1205 | 2008-12-05 | Dark torsion as the cosmic speed-up | It is shown that the recently detected acceleration of the universe can be understood by considering a modification of the teleparallel equivalent of General Relativity (TEGR), with no need of dark energy. The solution also exhibits phases dominated by matter and radiation as expected in the standard cosmological evolu... | [
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18488610 | 0812.1108 | 2008-12-05 | The CMS RPC gas gain monitoring system: an overview and preliminary results | The status of the CMS RPC Gas Gain Monitoring (GGM) system developed at the Frascati Laboratory of INFN (Istituto Nazionale di Fisica Nucleare) is reported on. The GGM system is a cosmic ray telescope based on small RPC detectors operated with the same gas mixture used by the CMS RPC system. The GGM gain and efficiency... | [
"physics.ins-det"
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{
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... | null |
14618669 | 0812.1157 | 2008-12-05 | Covering space theory for directed topology | The state space of a machine admits the structure of time. For example, the geometric realization of a precubical set, a generalization of an unlabeled asynchronous transition system, admits a "local preorder" encoding control flow. In the case where time does not loop, the "locally preordered" state space splits into ... | [
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8861396 | 0812.1321 | 2008-12-06 | Oscillations with TCP-like Flow Control in Networks of Queues | We consider a set of flows passing through a set of servers. The injection rate into each flow is governed by a flow control that increases the injection rate when all the servers on the flow's path are empty and decreases the injection rate when some server is congested. We show that if each server's congestion is gov... | [
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{
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17015 | 0812.1319 | 2008-12-06 | Surface instability of sheared soft tissues | When a block made of an elastomer is subjected to large shear, its surface remains flat. When a block of biological soft tissue is subjected to large shear, it is likely that its surface in the plane of shear will buckle (apparition of wrinkles). One factor that distinguishes soft tissues from rubber-like solids is the... | [
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14236961 | 0812.1480 | 2008-12-08 | Small amplitude waves and stability for a pre-stressed viscoelastic solid | We study the propagation of small amplitude waves superimposed on a large static deformation in a nonlinear viscoelastic material of differential type. We use bulk waves and surface waves to address the questions of dissipation and of material and geometric stability. In particular, the analysis provides bounds on the ... | [
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14810008 | 0812.1554 | 2008-12-08 | Molecular communication: Physically realistic models and achievable information rates | Molecular communication is a biologically-inspired method of communication with attractive properties for microscale and nanoscale devices. In molecular communication, messages are transmitted by releasing a pattern of molecules at a transmitter, which propagate through a fluid medium towards a receiver. In this paper,... | [
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7403911 | 0812.1557 | 2008-12-08 | To Cooperate, or Not to Cooperate in Imperfectly-Known Fading Channels | In this paper, communication over imperfectly-known fading channels with different degrees of cooperation is studied. The three-node relay channel is considered. It is assumed that communication starts with the network training phase in which the receivers estimate the fading coefficients of their respective channels. ... | [
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1232607 | 0812.1560 | 2008-12-08 | Achievable Rates and Training Optimization for Fading Relay Channels with Memory | In this paper, transmission over time-selective, flat fading relay channels is studied. It is assumed that channel fading coefficients are not known a priori. Transmission takes place in two phases: network training phase and data transmission phase. In the training phase, pilot symbols are sent and the receivers emplo... | [
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14829438 | 0812.1567 | 2008-12-08 | The warped young stellar disc in the Galactic Centre | Within the central parsec of the Galaxy, several tens of young stars orbiting a central supermassive black hole are observed. A subset of these stars forms a coherently rotating disc. Other observations reveal a massive molecular torus which lies at a radius ~1.5pc from the centre. In this paper we consider the gravita... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2755292 | 0812.1597 | 2008-12-08 | Transmission Techniques for Relay-Interference Networks | In this paper we study the relay-interference wireless network, in which relay (helper) nodes are to facilitate competing information flows over a wireless network. We examine this in the context of a deterministic wireless interaction model, which eliminates the channel noise and focuses on the signal interactions. Us... | [
"cs.IT",
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14661170 | 0812.1456 | 2008-12-08 | Structural and spectral properties of a family of deterministic recursive trees: Rigorous solutions | As one of the most significant models, the uniform recursive tree (URT) has found many applications in a variety of fields. In this paper, we study rigorously the structural features and spectral properties of the adjacency matrix for a family of deterministic uniform recursive trees (DURTs) that are deterministic vers... | [
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"name": "Zhongzhi Zhang",
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18169921 | 0812.1582 | 2008-12-08 | Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems | We present the latest velocities for 10 multi-planet systems, including a re-analysis of archival Keck and Lick data, resulting in improved velocities that supersede our previously published measurements. We derive updated orbital fits for ten Lick and Keck systems, including two systems (HD 11964, HD 183263) for which... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2849236 | 0812.1410 | 2008-12-08 | On vertex, edge, and vertex-edge random graphs | We consider three classes of random graphs: edge random graphs, vertex random graphs, and vertex-edge random graphs. Edge random graphs are Erdos-Renyi random graphs, vertex random graphs are generalizations of geometric random graphs, and vertex-edge random graphs generalize both. The names of these three types of ran... | [
"math.CO",
"math.PR"
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] | null | null | null |
7584519 | 0812.1553 | 2008-12-08 | Analysis of Energy Efficiency in Fading Channels under QoS Constraints | Energy efficiency in fading channels in the presence of Quality of Service (QoS) constraints is studied. Effective capacity, which provides the maximum arrival rate that a wireless channel can sustain while satisfying statistical QoS constraints, is considered. Spectral efficiency--bit energy tradeoff is analyzed in th... | [
"cs.IT",
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119204976 | 0812.1421 | 2008-12-08 | Relativistic Laser-Matter Interaction and Relativistic Laboratory Astrophysics | The paper is devoted to the prospects of using the laser radiation interaction with plasmas in the laboratory relativistic astrophysics context. We discuss the dimensionless parameters characterizing the processes in the laser and astrophysical plasmas and emphasize a similarity between the laser and astrophysical plas... | [
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{
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513278 | 0812.1558 | 2008-12-08 | Pilot-Symbol-Assisted Communications with Noncausal and Causal Wiener Filters | In this paper, pilot-assisted transmission over time-selective flat fading channels is studied. It is assumed that noncausal and causal Wiener filters are employed at the receiver to perform channel estimation with the aid of training symbols sent periodically by the transmitter. For both filters, the variances of esti... | [
"cs.IT",
"math.IT"
] | null | [
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{
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15767934 | 0812.1434 | 2008-12-08 | The Slitless Spectroscopy Data Extraction Software aXe | The methods and techniques for the slitless spectroscopy software aXe, which was designed to reduce data from the various slitless spectroscopy modes of Hubble Space Telescope instruments, are described. aXe can treat slitless spectra from different instruments such as ACS, NICMOS and WFC3 through the use of a configur... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2173462 | 0812.1719 | 2008-12-09 | Exponential inequalities for martingales and asymptotic properties of the free energy of directed polymers in random environment | The objective of the present paper is to establish exponential large deviation inequalities, and to use them to show exponential concentration inequalities for the free energy of a polymer in general random environment, its rate of convergence, and an expression of its limit value in terms of those of some multiplicati... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18595968 | 0812.1726 | 2008-12-09 | Existence and uniqueness of solutions of stochastic functional differential equations | We provide sufficient conditions on the coefficients of a stochastic functional differential equation with bounded memory driven by Brownian motion which guarantee existence and uniqueness of a maximal local and global strong solution for each initial condition. Our results extend those of previous works. For local exi... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5707698 | 0812.1780 | 2008-12-09 | On the Energy Efficiency of Orthogonal Signaling | In this paper, transmission over the additive white Gaussian noise (AWGN) channel, and coherent and noncoherent fading channels using M-ary orthogonal frequency-shift keying (FSK) or on-off frequency-shift keying (OOFSK) is considered. The receiver is assumed to perform hard-decision detection. In this setting, energy ... | [
"cs.IT",
"math.IT"
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{
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}
] | null |
39802755 | 0812.1806 | 2008-12-09 | Geodesic stability, Lyapunov exponents and quasinormal modes | Geodesic motion determines important features of spacetimes. Null unstable geodesics are closely related to the appearance of compact objects to external observers and have been associated with the characteristic modes of black holes. By computing the Lyapunov exponent, which is the inverse of the instability timescale... | [
"hep-th",
"astro-ph",
"gr-qc"
] | null | [
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] | null | null | null |
14832691 | 0812.1713 | 2008-12-09 | Secret Communication with Feedback | Secure communication with feedback is studied. An achievability scheme in which the backward channel is used to generate a shared secret key is proposed. The scenario of binary symmetric forward and backward channels is considered, and a combination of the proposed scheme and Maurer's coding scheme is shown to achieve ... | [
"cs.IT",
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] | null | [
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{
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"name": "D. [\"Richard\"] Brown",
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9568295 | 0812.1811 | 2008-12-09 | Stability of graph communities across time scales | The complexity of biological, social and engineering networks makes it desirable to find natural partitions into communities that can act as simplified descriptions and provide insight into the structure and function of the overall system. Although community detection methods abound, there is a lack of consensus on how... | [
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"cs.IR",
"physics.data-an"
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] | null | null | null |
2218201 | 0812.1778 | 2008-12-09 | The Impact of QoS Constraints on the Energy Efficiency of Fixed-Rate Wireless Transmissions | Transmission over wireless fading channels under quality of service (QoS) constraints is studied when only the receiver has channel side information. Being unaware of the channel conditions, transmitter is assumed to send the information at a fixed rate. Under these assumptions, a two-state (ON-OFF) transmission model ... | [
"cs.IT",
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] | null | [
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{
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"name": "Mustafa [\"Cenk\"] Gursoy",
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5556891 | 0812.1857 | 2008-12-09 | Dependence Balance Based Outer Bounds for Gaussian Networks with Cooperation and Feedback | We obtain new outer bounds on the capacity regions of the two-user multiple access channel with generalized feedback (MAC-GF) and the two-user interference channel with generalized feedback (IC-GF). These outer bounds are based on the idea of dependence balance which was proposed by Hekstra and Willems [1]. To illustra... | [
"cs.IT",
"math.IT"
] | null | [
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{
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"author_id": "s ulukus_1",
"name": "Sennur Ulukus",
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"... | null |
13028699 | 0812.1697 | 2008-12-09 | Multiplicative Noise Removal Using L1 Fidelity on Frame Coefficients | We address the denoising of images contaminated with multiplicative noise, e.g. speckle noise. Classical ways to solve such problems are filtering, statistical (Bayesian) methods, variational methods, and methods that convert the multiplicative noise into additive noise (using a logarithmic function), shrinkage of the ... | [
"math.OC"
] | null | [
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] | [] | [
{
"author_id": "s durand_2",
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17106494 | 0812.1699 | 2008-12-09 | JKCS041: a colour-detected galaxy cluster at z_phot=1.9 with deep potential well as confirmed by X-ray data | [Abridged] We report the discovery of JKCS041, a massive near-infrared selected cluster of galaxies z=1.9. The cluster was originally discovered using a modified red-sequence method and was also detected in follow-up Chandra data as extended X-ray source. Optical and near-infrared imaging data alone allow us to show th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119194474 | 0812.1818 | 2008-12-09 | Dissipative Bjorken hydrodynamics from an AdS Schwarzschild black hole | We discuss the derivation of dissipative Bjorken hydrodynamics from a Schwarzschild black hole in asymptotically AdS spacetime of arbitrary dimension in the limit of large longitudinal proper time $\tau$. Using an appropriate slicing near the boundary, we calculate the Schwarzschild metric to next-to-next-to-leading or... | [
"hep-th"
] | null | [
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1915637 | 0812.1869 | 2008-12-10 | Convex Sparse Matrix Factorizations | We present a convex formulation of dictionary learning for sparse signal decomposition. Convexity is obtained by replacing the usual explicit upper bound on the dictionary size by a convex rank-reducing term similar to the trace norm. In particular, our formulation introduces an explicit trade-off between size and spar... | [
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73623447 | 0812.2022 | 2008-12-10 | WINGS-SPE Spectroscopy in the WIde-field Nearby Galaxy-cluster Survey | Aims. We present the results from a comprehensive spectroscopic survey of the WINGS (WIde-field Nearby Galaxy-cluster Survey) clusters, a program called WINGS-SPE. The WINGS-SPE sample consists of 48 clusters, 22 of which are in the southern sky and 26 in the north. The main goals of this spectroscopic survey are: (1) ... | [
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2400156 | 0812.2021 | 2008-12-10 | A Wide-Field Study of the z~0.8 Cluster RX J0152.7-1357: the Role of Environment in the Formation of the Red-Sequence | [ABRIDGED] We present the first results from the largest spectroscopic survey to date of an intermediate redshift galaxy cluster, the z=0.834 cluster RX J0152.7-1357. We use the colors of galaxies, assembled from a D~12 Mpc region centered on the cluster, to investigate the properties of the red-sequence as a function ... | [
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] | null | [
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10720307 | 0812.1844 | 2008-12-10 | Molecular Signatures in the Near Infrared Dayside Spectrum of HD 189733b | We have measured the dayside spectrum of HD 189733b between 1.5 and 2.5 microns using the NICMOS instrument on the Hubble Space Telescope. The emergent spectrum contains significant modulation, which we attribute to the presence of molecular bands seen in absorption. We find that water (H2O), carbon monoxide (CO), and ... | [
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115168594 | 0812.1978 | 2008-12-10 | A mechanical approach to mean field spin models | Inspired by the bridge pioneered by Guerra among statistical mechanics on lattice and analytical mechanics on 1+1 continuous Euclidean space-time, we built a self-consistent method to solve for the thermodynamics of mean-field models defined on lattice, whose order parameters self average. We show the whole procedure b... | [
"math-ph",
"math.MP"
] | null | [
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] | null | null | null |
53606165 | 0812.1998 | 2008-12-10 | Improved parameters for the transiting hot Jupiters WASP-4b and WASP-5b | The gaseous giant planets WASP-4b and WASP-5b are transiting 12 magnitude solar-type stars in the Southern hemisphere. The aim of the present work is to refine the parameters of these systems using high cadence VLT/FORS2 z-band transit photometry and high resolution VLT/UVES spectroscopy. For WASP-4, the new estimates ... | [
"astro-ph"
] | null | [
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] | null | null | null |
1587234 | 0812.1938 | 2008-12-10 | Trek separation for Gaussian graphical models | Gaussian graphical models are semi-algebraic subsets of the cone of positive definite covariance matrices. Submatrices with low rank correspond to generalizations of conditional independence constraints on collections of random variables. We give a precise graph-theoretic characterization of when submatrices of the cov... | [
"stat.ML",
"math.CO",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119118020 | 0812.2127 | 2008-12-11 | Classical spin systems and the quantum stabilizer formalism: general mappings and applications | We present general mappings between classical spin systems and quantum physics. More precisely, we show how to express partition functions and correlation functions of arbitrary classical spin models as inner products between quantum stabilizer states and product states, thereby generalizing mappings for some specific ... | [
"quant-ph"
] | null | [
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{
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{
"author_id": "m nest_1",
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14383142 | 0812.2153 | 2008-12-11 | Spectral Pollution and How to Avoid It (With Applications to Dirac and Periodic Schr\"odinger Operators) | This paper, devoted to the study of spectral pollution, contains both abstract results and applications to some self-adjoint operators with a gap in their essential spectrum occuring in Quantum Mechanics. First we consider Galerkin basis which respect the decomposition of the ambient Hilbert space into a direct sum $H=... | [
"math.SP",
"math-ph",
"math.MP",
"math.NA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7202563 | 0812.2265 | 2008-12-11 | Mixing time of exponential random graphs | Exponential random graphs are used extensively in the sociology literature. This model seeks to incorporate in random graphs the notion of reciprocity, that is, the larger than expected number of triangles and other small subgraphs. Sampling from these distributions is crucial for parameter estimation hypothesis testin... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2074835 | 0812.2277 | 2008-12-11 | An Efficient PTAS for Two-Strategy Anonymous Games | We present a novel polynomial time approximation scheme for two-strategy anonymous games, in which the players' utility functions, although potentially different, do not differentiate among the identities of the other players. Our algorithm computes an $eps$-approximate Nash equilibrium of an $n$-player 2-strategy anon... | [
"cs.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11394756 | 0812.2263 | 2008-12-11 | Feature selection by Higher Criticism thresholding: optimal phase diagram | We consider two-class linear classification in a high-dimensional, low-sample size setting. Only a small fraction of the features are useful, the useful features are unknown to us, and each useful feature contributes weakly to the classification decision -- this setting was called the rare/weak model (RW Model). We sel... | [
"math.ST",
"stat.TH"
] | null | [
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{
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{
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{
"author_id": "j jin_13",
"name": "Jiashun Jin",
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13262745 | 0812.2291 | 2008-12-11 | Characterizing Truthful Multi-Armed Bandit Mechanisms | We consider a multi-round auction setting motivated by pay-per-click auctions for Internet advertising. In each round the auctioneer selects an advertiser and shows her ad, which is then either clicked or not. An advertiser derives value from clicks; the value of a click is her private information. Initially, neither t... | [
"cs.DS",
"cs.GT",
"cs.LG"
] | null | [
"target.author.publication_history",
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{
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1445390 | 0812.2275 | 2008-12-11 | Secrecy capacity of a class of orthogonal relay eavesdropper channels | The secrecy capacity of relay channels with orthogonal components is studied in the presence of an additional passive eavesdropper node. The relay and destination receive signals from the source on two orthogonal channels such that the destination also receives transmissions from the relay on its channel. The eavesdrop... | [
"cs.IT",
"math.IT"
] | null | [
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{
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{
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{
"author_id": "l sankar_1",
"name": "L. Sankar",
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"h_index": null,
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... | null |
404407 | 0812.2288 | 2008-12-11 | Congestion Control Protocol for Wireless Sensor Networks Handling Prioritized Heterogeneous Traffic | Heterogeneous applications could be assimilated within the same wireless sensor network with the aid of modern motes that have multiple sensor boards on a single radio board. Different types of data generated from such types of motes might have different transmission characteristics in terms of priority, transmission r... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
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"name": "Muhammad [\"Mostafa\"] Monowar",
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},
{
"author_id": "m rahman_48",
"name": "Md. [\"Obaidur\"] Rahman",
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"h_index": nul... | null |
16406297 | 0812.2065 | 2008-12-11 | A photometric study of the southern Blazhko star SS For Unambiguous detection of quintuplet components | We present our analysis of photometric data in the Johnson B and V filter of the southern Blazhko star SS For. In parallel, we analyzed the V observations obtained with the ASAS-3 photometry of the star gathered between 2000 and 2008. In the frequency spectra resulting from a Fourier analysis of our data, the triplet s... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15978509 | 0812.2481 | 2008-12-12 | A Highly Complete Spectroscopic Survey of the GOODS-N Field | We present a table of redshifts for 2907 galaxies and stars in the 145 square arcmin HST ACS GOODS-North, making this the most spectroscopically complete redshift sample obtained to date in a field of this size. We also include the redshifts, where available, in a table containing just under 7000 galaxies from the ACS ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
52254249 | 0812.2408 | 2008-12-12 | Outer-totalistic cellular automata on graphs | We present an intuitive formalism for implementing cellular automata on arbitrary topologies. By that means, we identify a symmetry operation in the class of elementary cellular automata. Moreover, we determine the subset of topologically sensitive elementary cellular automata and find that the overall number of comple... | [
"nlin.CG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
29261455 | 0812.2385 | 2008-12-12 | Quantum mechanical evolution towards thermal equilibrium | The circumstances under which a system reaches thermal equilibrium, and how to derive this from basic dynamical laws, has been a major question from the very beginning of thermodynamics and statistical mechanics. Despite considerable progress, it remains an open problem. Motivated by this issue, we address the more gen... | [
"quant-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119277237 | 0812.2339 | 2008-12-12 | Coulomb implosion mechanism of negative ion acceleration in laser plasmas | Coulomb implosion mechanism of the negatively charged ion acceleration in laser plasmas is proposed. When a cluster target is irradiated by an intense laser pulse and the Coulomb explosion of positively charged ions occurs, the negative ions are accelerated inward. The maximum energy of negative ions is several times l... | [
"physics.plasm-ph",
"physics.acc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t nakamura_9",
"name": "T. Nakamura",
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{
"author_id": "y fukuda_2",
"name": "Yuji Fukuda",
"publication_history": null,
"h_index": null,
"num_papers": null,
"... | null |
5709031 | 0812.2518 | 2008-12-12 | Strongly Multiplicative and 3-Multiplicative Linear Secret Sharing Schemes | Strongly multiplicative linear secret sharing schemes (LSSS) have been a powerful tool for constructing secure multiparty computation protocols. However, it remains open whether or not there exist efficient constructions of strongly multiplicative LSSS from general LSSS. In this paper, we propose the new concept of a 3... | [
"cs.CR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "z zhang_300",
"name": "Zhifang Zhang",
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"h_index": null,
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},
{
"author_id": "m liu_179",
"name": "Mulan Liu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
14445240 | 0812.2409 | 2008-12-12 | Sensing Models and Its Impact on Network Coverage in Wireless Sensor Network | Network coverage of wireless sensor network (WSN) means how well an area of interest is being monitored by the deployed network. It depends mainly on sensing model of nodes. In this paper, we present three types of sensing models viz. Boolean sensing model, shadow-fading sensing model and Elfes sensing model. We invest... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a hossain_7",
"name": "Ashraf Hossain",
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{
"author_id": "p biswas_1",
"name": "Prabir [\"Kumar\"] Biswas",
"publication_history": null,
"h_index": null,
"num_pape... | null |
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