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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15225863 | 0909.5305 | 2009-09-29 | Perfect imaging without negative refraction | Perfect imaging has been believed to rely on negative refraction, but here we show that an ordinary positively-refracting optical medium may form perfect images as well. In particular, we establish a mathematical proof that Maxwell's fish eye in two-dimensional integrated optics makes a perfect instrument with a resolu... | [
"physics.optics"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
28020 | 0909.5422 | 2009-09-29 | Laplacian Support Vector Machines Trained in the Primal | In the last few years, due to the growing ubiquity of unlabeled data, much effort has been spent by the machine learning community to develop better understanding and improve the quality of classifiers exploiting unlabeled data. Following the manifold regularization approach, Laplacian Support Vector Machines (LapSVMs)... | [
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"name": "Mikhail Belkin",
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13755528 | 0909.5332 | 2009-09-29 | Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes | We present observational evidence for the presence of MHD waves in the solar photosphere deduced from SOHO/MDI Dopplergram velocity observations. The magneto-acoustic perturbations are observed as acoustic power enhancement in the sunspot umbra at high-frequency bands in the velocity component perpendicular to the magn... | [
"astro-ph.SR"
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115178201 | 0909.5274 | 2009-09-29 | On large deviations of additive functions | We prove that if two additive functions (from a certain class) take large values with roughly the same probability then they must be identical. The Kac-Kubilius model suggests that the distribution of values of a given additive function can be modeled by a sum of random variables. We show that the model is accurate (in... | [
"math.NT",
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58895231 | 0909.5384 | 2009-09-29 | First-order adiabatic perturbations of a perfect fluid about a general FLRW background using the 1+3 covariant and gauge-invariant formalism | An analysis of adiabatic perturbations of a perfect fluid is performed to first-order about a general FLRW background using the 1+3 covariant and gauge-invariant formalism. The analog of the Mukhanov-Sasaki variable and the canonical variables needed to quantise respectively the scalar and tensor perturbations in a gen... | [
"gr-qc",
"astro-ph.CO"
] | null | [
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18275355 | 0909.5365 | 2009-09-29 | Quasi-Proportional Mechanisms: Prior-free Revenue Maximization | Inspired by Internet ad auction applications, we study the problem of allocating a single item via an auction when bidders place very different values on the item. We formulate this as the problem of prior-free auction and focus on designing a simple mechanism that always allocates the item. Rather than designing sophi... | [
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"name": "Shanmugavelayutham Muthukrishnan",
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725093 | 0909.5313 | 2009-09-29 | The Remote Point Problem, Small Bias Space, and Expanding Generator Sets | Using $\epsilon$-bias spaces over $F_2$, we show that the Remote Point Problem (RPP), introduced by Alon et al [APY09], has an $NC^2$ algorithm (achieving the same parameters as [APY09]). We study a generalization of the Remote Point Problem to groups: we replace $F^n$ by $G^n$ for an arbitrary fixed group $G$. When $G... | [
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"name": "Srikanth Srinivasan",
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14120082 | 0909.5262 | 2009-09-29 | Particle learning of Gaussian process models for sequential design and optimization | We develop a simulation-based method for the online updating of Gaussian process regression and classification models. Our method exploits sequential Monte Carlo to produce a fast sequential design algorithm for these models relative to the established MCMC alternative. The latter is less ideal for sequential design si... | [
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"name": "Nicholas [\"G.\"] Polson",
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118545711 | 0909.5382 | 2009-09-29 | The atmospheric charged kaon/pion ratio using seasonal variation methods | Observed since the 1950's, the seasonal effect on underground muons is a well studied phenomenon. The interaction height of incident cosmic rays changes as the temperature of the atmosphere changes, which affects the production height of mesons (mostly pions and kaons). The decay of these mesons produces muons that can... | [
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"astro-ph.HE",
"hep-ph"
] | null | [
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17112814 | 0909.5327 | 2009-09-29 | The aT distribution of the Z boson at hadron colliders | We provide the first theoretical study of a novel variable, $a_T$, proposed in Ref.[1] as a more accurate probe of the region of low transverse momentum $p_T$, for the $Z$ boson $p_T$ distribution at hadron colliders. The $a_T$ is the component of $p_T$ transverse to a suitably defined axis. Our study involves resummat... | [
"hep-ph"
] | null | [
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] | null | null | null |
5802230 | 0909.5388 | 2009-09-29 | A Universal Crease Pattern for Folding Orthogonal Shapes | We present a universal crease pattern--known in geometry as the tetrakis tiling and in origami as box pleating--that can fold into any object made up of unit cubes joined face-to-face (polycubes). More precisely, there is one universal finite crease pattern for each number n of unit cubes that need to be folded. This r... | [
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"name": "Erik [\"D.\"] Demaine",
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... | null |
1099724 | 0909.5424 | 2009-09-29 | The Degrees of Freedom Regions of MIMO Broadcast, Interference, and Cognitive Radio Channels with No CSIT | The degrees of freedom (DoF) regions are characterized for the multiple-input multiple-output (MIMO) broadcast channel (BC), interference channels (IC) (including X and multi-hop interference channels) and the cognitive radio channel (CRC), when there is perfect and no channel state information at the receivers and the... | [
"cs.IT",
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] | null | [
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90296 | 0909.5683 | 2009-09-30 | Quantum interpolation of polynomials | We consider quantum interpolation of polynomials. We imagine a quantum computer with black-box access to input/output pairs (x_i, f(x_i)), where f is a degree-d polynomial, and we wish to compute f(0). We give asymptotically tight quantum lower bounds for this problem, even in the case where 0 is among the possible val... | [
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"author_id": "s kutin_0",
"name": "Samuel Kutin",
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... | null |
3100332 | 0909.5677 | 2009-09-30 | Beyond Equilibria: Mechanisms for Repeated Combinatorial Auctions | We study the design of mechanisms in combinatorial auction domains. We focus on settings where the auction is repeated, motivated by auctions for licenses or advertising space. We consider models of agent behaviour in which they either apply common learning techniques to minimize the regret of their bidding strategies,... | [
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}
] | null |
39540250 | 0910.0013 | 2009-09-30 | Algorithms for finding dispensable variables | This short note reviews briefly three algorithms for finding the set of dispensable variables of a boolean formula. The presentation is light on proofs and heavy on intuitions. | [
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"cs.LO"
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"name": "Joao Marques-Silva",
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5643216 | 0909.5478 | 2009-09-30 | Smoothed dynamics in the central field problem | Consider the motion of a material point of unit mass in a central field determined by a homogeneous potential of the form $(-1/r^{\alpha})$, $\alpha>0,$ where $r$ being the distance to the centre of the field. Due to the singularity at $r=0,$ in computer-based simulations, usually, the potential is replaced by a simila... | [
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"author_id": "c stoica_1",
"name": "Cristina Stoica",
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1982673 | 0910.0011 | 2009-09-30 | The Far-Infrared--Radio Correlation at High Redshifts: Physical Considerations and Prospects for the Square Kilometer Array | (Abridged) I present a predictive analysis for the behavior of the FIR--radio correlation as a function of redshift in light of the deep radio continuum surveys which may become possible using the SKA. To keep a fixed ratio between the FIR and predominantly non-thermal radio continuum emission of a normal star-forming ... | [
"astro-ph.CO",
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] | null | [
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] | null | null | null |
5361881 | 0909.5457 | 2009-09-30 | Guaranteed Rank Minimization via Singular Value Projection | Minimizing the rank of a matrix subject to affine constraints is a fundamental problem with many important applications in machine learning and statistics. In this paper we propose a simple and fast algorithm SVP (Singular Value Projection) for rank minimization with affine constraints (ARMP) and show that SVP recovers... | [
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"name": "Raghu Meka",
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263791345 | 0909.5545 | 2009-09-30 | Measurement of D^0 and D^+ meson masses with the KEDR Detector | The masses of the neutral and charged D-mesons have been measured with the KEDR detector at the VEPP-4M electron-positron collider: M(D^0) = 1865.30 +- 0.33 +- 0.23 MeV, M(D^+) = 1869.53 +- 0.49 +- 0.20 MeV. | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1342989 | 0909.5673 | 2009-09-30 | Model choice versus model criticism | The new perspectives on ABC and Bayesian model criticisms presented in Ratmann et al.(2009) are challenging standard approaches to Bayesian model choice. We discuss here some issues arising from the authors' approach, including prior influence, model assessment and criticism, and the meaning of error in ABC. | [
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"stat.CO"
] | null | [
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{
"author_id": "c robert_1",
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},
{
"author_id": "k mengersen_1",
"name": "Kerrie [\"Lee\"] Mengersen",
"publication_history": null,
"h_index": null,... | null |
619564 | 0909.5654 | 2009-09-30 | Approximating Loops in a Shortest Homology Basis from Point Data | Inference of topological and geometric attributes of a hidden manifold from its point data is a fundamental problem arising in many scientific studies and engineering applications. In this paper we present an algorithm to compute a set of loops from a point data that presumably sample a smooth manifold $M\subset \mathb... | [
"cs.CG",
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] | null | [
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"author_id": "t dey_4",
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{
"author_id": "j sun_135",
"name": "Jian Sun",
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"nu... | null |
10902039 | 0909.5601 | 2009-09-30 | Foliations of Hyperbolic Space by Constant Mean Curvature Hypersurfaces | We show that the constant mean curvature hypersurfaces in the hyperbolic n-space spanning the boundary of a star shaped C^{1,1} domain in the asymptotic sphere give a foliation of the hyperbolic n-space. We also show that if C is a closed codimension-1 C^{2,a} submanifold in the asymptotic sphere bounding a unique cons... | [
"math.DG",
"math.GT"
] | null | [
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] | null |
14232753 | 0909.5564 | 2009-09-30 | VLT Spectropolarimetry of the fast expanding Type Ia SN2006X | Using VLT-FORS1 we performed optical spectropolarimetric observations of the Type Ia SN2006X on 7 pre-maximum epochs (day -10 to day -1) and one post-maximum epoch (+39 days). The SN shows strong continuum interstellar polarization reaching about 8% at 4000A, characterized by a wavelength dependency that is substantial... | [
"astro-ph.SR",
"astro-ph.CO"
] | null | [
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] | null | null | null |
1783622 | 0909.5530 | 2009-09-30 | Differential Privacy via Wavelet Transforms | Privacy preserving data publishing has attracted considerable research interest in recent years. Among the existing solutions, {\em $\epsilon$-differential privacy} provides one of the strongest privacy guarantees. Existing data publishing methods that achieve $\epsilon$-differential privacy, however, offer little data... | [
"cs.DB"
] | null | [
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] | [] | [
{
"author_id": "x xiao_23",
"name": "Xiaokui Xiao",
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},
{
"author_id": "g wang_31",
"name": "Guozhang Wang",
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"n... | null |
11136936 | 0910.0115 | 2009-10-01 | Expectation Propagation on the Maximum of Correlated Normal Variables | Many inference problems involving questions of optimality ask for the maximum or the minimum of a finite set of unknown quantities. This technical report derives the first two posterior moments of the maximum of two correlated Gaussian variables and the first two posterior moments of the two generating variables (corre... | [
"stat.ML"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15944588 | 0910.0137 | 2009-10-01 | Affine processes on positive semidefinite matrices | This article provides the mathematical foundation for stochastically continuous affine processes on the cone of positive semidefinite symmetric matrices. This analysis has been motivated by a large and growing use of matrix-valued affine processes in finance, including multi-asset option pricing with stochastic volatil... | [
"math.PR",
"q-fin.CP"
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{
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"author_id": "c cuchiero_1",
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"author_id": "d filipović_1",
"name": "Damir Filipović",
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3727200 | 0910.0063 | 2009-10-01 | A Nonparametric Approach to Modeling Choice with Limited Data | A central push in operations models over the last decade has been the incorporation of models of customer choice. Real world implementations of many of these models face the formidable stumbling block of simply identifying the `right' model of choice to use. Thus motivated, we visit the following problem: For a `generi... | [
"stat.AP"
] | null | [
"target.author.publication_history.key_reference",
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] | null | null | null |
18578933 | 0910.0103 | 2009-10-01 | Emergence of Global Preferential Attachment From Local Interaction | Global degree/strength based preferential attachment is widely used as an evolution mechanism of networks. But it is hard to believe that any individual can get global information and shape the network architecture based on it. In this paper, it is found that the global preferential attachment emerges from the local in... | [
"cond-mat.stat-mech",
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6460992 | 0910.0078 | 2009-10-01 | Grid diagrams and Heegaard Floer invariants | We give combinatorial descriptions of the Heegaard Floer homology groups for arbitrary three-manifolds (with coefficients in Z/2). The descriptions are based on presenting the three-manifold as an integer surgery on a link in the three-sphere, and then using a grid diagram for the link. We also give combinatorial descr... | [
"math.GT",
"math.SG"
] | null | [
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] | null | null | null |
16564204 | 0910.0165 | 2009-10-01 | The performance of modularity maximization in practical contexts | Although widely used in practice, the behavior and accuracy of the popular module identification technique called modularity maximization is not well understood in practical contexts. Here, we present a broad characterization of its performance in such situations. First, we revisit and clarify the resolution limit phen... | [
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"cond-mat.dis-nn",
"physics.soc-ph",
"q-bio.MN",
"q-bio.QM"
] | null | [
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{
"author_id": "b good_0",
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"author_id": "y de montjoye_1",
"name": "Yves-Alexandre de Montjoye",
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... | null |
17771052 | 0910.0001 | 2009-10-01 | Very blue UV-continuum slopes of low luminosity z~7 galaxies from WFC3/IR: Evidence for extremely low metallicities? | We use the ultra-deep WFC3/IR data over the HUDF and the Early Release Science WFC3/IR data over the CDF-South GOODS field to quantify the broadband spectral properties of candidate star-forming galaxies at z~7. We determine the UV-continuum slope beta in these galaxies, and compare the slopes with galaxies at later ti... | [
"astro-ph.CO"
] | null | [
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] | null | null | null |
17222318 | 0910.0150 | 2009-10-01 | Trigonometric Parallaxes of 6.7 GHz Methanol Masers | Emission from the 6.7 GHz methanol maser transition is very strong, is relatively stable, has small internal motions, and is observed toward numerous massive star-forming regions in the Galaxy. Our goal is to perform high-precision astrometry using this maser transition to obtain accurate distances to their host region... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4333823 | 0910.0059 | 2009-10-01 | Hydrogen-poor superluminous stellar explosions | Supernovae (SNe) are stellar explosions driven by gravitational or thermonuclear energy, observed as electromagnetic radiation emitted over weeks or more. In all known SNe, this radiation comes from internal energy deposited in the outflowing ejecta by either radioactive decay of freshly-synthesized elements (typically... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14161952 | 0910.0456 | 2009-10-02 | Sharp Sufficient Conditions on Exact Sparsity Pattern Recovery | Consider the $n$-dimensional vector $y=X\be+\e$, where $\be \in \R^p$ has only $k$ nonzero entries and $\e \in \R^n$ is a Gaussian noise. This can be viewed as a linear system with sparsity constraints, corrupted by noise. We find a non-asymptotic upper bound on the probability that the optimal decoder for $\beta$ decl... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13009494 | 0910.0284 | 2009-10-02 | Linear rank inequalities on five or more variables | Ranks of subspaces of vector spaces satisfy all linear inequalities satisfied by entropies (including the standard Shannon inequalities) and an additional inequality due to Ingleton. It is known that the Shannon and Ingleton inequalities generate all such linear rank inequalities on up to four variables, but it has bee... | [
"cs.IT",
"math.IT"
] | null | [
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] | null | null | null |
55085751 | 0910.0312 | 2009-10-02 | Practical issues in quantum-key-distribution post-processing | Quantum key distribution (QKD) is a secure key generation method between two distant parties by wisely exploiting properties of quantum mechanics. In QKD, experimental measurement outcomes on quantum states are transformed by the two parties to a secret key. This transformation is composed of many logical steps (as gui... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15752830 | 0910.0493 | 2009-10-02 | From Requirements to code: an Architecture-centric Approach for producing Quality Systems | When engineering complex and distributed software and hardware systems (increasingly used in many sectors, such as manufacturing, aerospace, transportation, communication, energy, and health-care), quality has become a big issue, since failures can have economics consequences and can also endanger human life. Model-bas... | [
"cs.SE"
] | null | [
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{
"author_id": "a bucchiarone_1",
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"author_id": "d ruscio_1",
"name": "Davide [\"Di\"] Ruscio",
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11615073 | 0910.0413 | 2009-10-02 | Accurate low-rank matrix recovery from a small number of linear measurements | We consider the problem of recovering a lowrank matrix M from a small number of random linear measurements. A popular and useful example of this problem is matrix completion, in which the measurements reveal the values of a subset of the entries, and we wish to fill in the missing entries (this is the famous Netflix pr... | [
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18672598 | 0910.0526 | 2009-10-03 | A path algorithm for the Fused Lasso Signal Approximator | The Lasso is a very well known penalized regression model, which adds an $L_{1}$ penalty with parameter $\lambda_{1}$ on the coefficients to the squared error loss function. The Fused Lasso extends this model by also putting an $L_{1}$ penalty with parameter $\lambda_{2}$ on the difference of neighboring coefficients, ... | [
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8477893 | 0910.0610 | 2009-10-04 | Regularization Techniques for Learning with Matrices | There is growing body of learning problems for which it is natural to organize the parameters into matrix, so as to appropriately regularize the parameters under some matrix norm (in order to impose some more sophisticated prior knowledge). This work describes and analyzes a systematic method for constructing such matr... | [
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14468611 | 0910.0827 | 2009-10-05 | Performance of Statistical Tests for Single Source Detection using Random Matrix Theory | This paper introduces a unified framework for the detection of a source with a sensor array in the context where the noise variance and the channel between the source and the sensors are unknown at the receiver. The Generalized Maximum Likelihood Test is studied and yields the analysis of the ratio between the maximum ... | [
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17539657 | 0910.0682 | 2009-10-05 | On Pseudocyclic Association Schemes | The notion of pseudocyclic association scheme is generalized to the non-commutative case. It is proved that any pseudocyclic scheme the rank of which is much more than the valency is the scheme of a Frobenius group and is uniquely determined up to isomorphism by its intersection number array. An immediate corollary of ... | [
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12386653 | 0910.0887 | 2009-10-05 | Green Modulation in Proactive Wireless Sensor Networks | Due to unique characteristics of sensor nodes, choosing energy-efficient modulation scheme with low-complexity implementation (refereed to as green modulation) is a critical factor in the physical layer of Wireless Sensor Networks (WSNs). This paper presents (to the best of our knowledge) the first in-depth analysis of... | [
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6709619 | 0910.0902 | 2009-10-05 | Reduced-Rank Hidden Markov Models | We introduce the Reduced-Rank Hidden Markov Model (RR-HMM), a generalization of HMMs that can model smooth state evolution as in Linear Dynamical Systems (LDSs) as well as non-log-concave predictive distributions as in continuous-observation HMMs. RR-HMMs assume an m-dimensional latent state and n discrete observations... | [
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119242158 | 0910.0882 | 2009-10-05 | Testing Newtonian Gravity with AAOmega: Mass-To-Light Profiles and Metallicity Calibrations From 47 Tuc and M55 | Globular clusters are an important test bed for Newtonian gravity in the weak-acceleration regime, which is vital to our understanding of the nature of the gravitational interaction. Recent claims have been made that the velocity dispersion profiles of globular clusters flatten out at large radii, despite an apparent p... | [
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16985299 | 0910.0555 | 2009-10-05 | Exploiting Channel Correlations - Simple Interference Alignment Schemes with no CSIT | We explore 5 network communication problems where the possibility of interference alignment, and consequently the total number of degrees of freedom (DoF) with channel uncertainty at the transmitters are unknown. These problems share the common property that in each case the best known outer bounds are essentially robu... | [
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678288 | 0910.0504 | 2009-10-05 | Improved Analysis of a Max Cut Algorithm Based on Spectral Partitioning | Trevisan [SICOMP 2012] presented an algorithm for Max-Cut based on spectral partitioning techniques. This is the first algorithm for Max-Cut with an approximation guarantee strictly larger than 1/2 that is not based on semidefinite programming. Trevisan showed that its approximation ratio is of at least 0.531. In this ... | [
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117940873 | 0910.0467 | 2009-10-05 | Factorization at the LHC: From PDFs to Initial State Jets | We study proton-(anti)proton collisions at the LHC or Tevatron in the presence of experimental restrictions on the hadronic final state and for generic parton momentum fractions. At the scale Q of the hard interaction, factorization does not yield standard parton distribution functions (PDFs) for the initial state. The... | [
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9851129 | 0910.0921 | 2009-10-05 | Low-rank Matrix Completion with Noisy Observations: a Quantitative Comparison | We consider a problem of significant practical importance, namely, the reconstruction of a low-rank data matrix from a small subset of its entries. This problem appears in many areas such as collaborative filtering, computer vision and wireless sensor networks. In this paper, we focus on the matrix completion problem i... | [
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119212241 | 0910.0492 | 2009-10-05 | Power spectrum of the maxBCG sample: detection of acoustic oscillations using galaxy clusters | We use the direct Fourier method to calculate the redshift-space power spectrum of the maxBCG cluster catalog -- currently by far the largest existing galaxy cluster sample. The total number of clusters used in our analysis is 12,616. After accounting for the radial smearing effect caused by photometric redshift errors... | [
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7125812 | 0910.0651 | 2009-10-05 | A Simpler Approach to Matrix Completion | This paper provides the best bounds to date on the number of randomly sampled entries required to reconstruct an unknown low rank matrix. These results improve on prior work by Candes and Recht, Candes and Tao, and Keshavan, Montanari, and Oh. The reconstruction is accomplished by minimizing the nuclear norm, or sum of... | [
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18997438 | 0910.0760 | 2009-10-05 | Detection of a Dark Substructure through Gravitational Imaging | We report the detection of a dark substructure through direct gravitational imaging - undetected in the HST-ACS F814W image - in the gravitational lens galaxy of SLACS SDSSJ0946+1006 (the "Double Einstein Ring"). The detection is based on a Bayesian grid reconstruction of the two-dimensional surface density of the gala... | [
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18820474 | 0910.0722 | 2009-10-05 | On the conditions used to prove oracle results for the Lasso | Oracle inequalities and variable selection properties for the Lasso in linear models have been established under a variety of different assumptions on the design matrix. We show in this paper how the different conditions and concepts relate to each other. The restricted eigenvalue condition (Bickel et al., 2009) or the... | [
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16350258 | 0910.0465 | 2009-10-05 | Searching for Faint Planetary Nebulae Using the Digital Sky Survey | Recent Halpha surveys such as SHS and IPHAS have improved the completeness of the Galactic planetary nebula (PN) census. We now know of ~3,000 PNe in the Galaxy, but this is far short of most estimates, typically ~25,000 or more for the total population. The size of the Galactic PN population is required to derive an a... | [
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8313629 | 0910.0826 | 2009-10-05 | Coevolutionary games - a mini review | Prevalence of cooperation within groups of selfish individuals is puzzling in that it contradicts with the basic premise of natural selection. Favoring players with higher fitness, the latter is key for understanding the challenges faced by cooperators when competing with defectors. Evolutionary game theory provides a ... | [
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1513141 | 0910.1022 | 2009-10-06 | Distance Dependent Chinese Restaurant Processes | We develop the distance dependent Chinese restaurant process (CRP), a flexible class of distributions over partitions that allows for non-exchangeability. This class can be used to model many kinds of dependencies between data in infinite clustering models, including dependencies across time or space. We examine the pr... | [
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88511762 | 0910.1013 | 2009-10-06 | Functional learning through kernels | This paper reviews the functional aspects of statistical learning theory. The main point under consideration is the nature of the hypothesis set when no prior information is available but data. Within this framework we first discuss about the hypothesis set: it is a vectorial space, it is a set of pointwise defined fun... | [
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43392275 | 0910.1048 | 2009-10-06 | Short-recurrence Krylov subspace methods for the overlap Dirac operator at nonzero chemical potential | The overlap operator in lattice QCD requires the computation of the sign function of a matrix, which is non-Hermitian in the presence of a quark chemical potential. In previous work we introduced an Arnoldi-based Krylov subspace approximation, which uses long recurrences. Even after the deflation of critical eigenvalue... | [
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119306209 | 0910.0959 | 2009-10-06 | J/psi elliptic flow in relativistic heavy ion collisions | The J/psi elliptic flow in high energy nuclear collisions is calculated in a transport model. While the flow is very small at SPS and RHIC energies, it is strongly enhanced at LHC energy due to the dominance of the regeneration mechanism. | [
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16049649 | 0910.1122 | 2009-10-06 | A Selective Overview of Variable Selection in High Dimensional Feature Space (Invited Review Article) | High dimensional statistical problems arise from diverse fields of scientific research and technological development. Variable selection plays a pivotal role in contemporary statistical learning and scientific discoveries. The traditional idea of best subset selection methods, which can be regarded as a specific form o... | [
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15536724 | 0910.1116 | 2009-10-06 | Measurement-based quantum computation | Quantum computation offers a promising new kind of information processing, where the non-classical features of quantum mechanics can be harnessed and exploited. A number of models of quantum computation exist, including the now well-studied quantum circuit model. Although these models have been shown to be formally equ... | [
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121462931 | 0910.0908 | 2009-10-06 | Fermi-LAT Discovery of Extended Gamma-ray Emission in the Direction of Supernova Remnant W51C | The discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. W51C is a middle-aged remnant (~10^4 yr) with intense radio synchrotron emission in its shell and known to be interacting with a molecula... | [
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10912158 | 0910.1026 | 2009-10-06 | A multiagent urban traffic simulation. Part II: dealing with the extraordinary | In Probabilistic Risk Management, risk is characterized by two quantities: the magnitude (or severity) of the adverse consequences that can potentially result from the given activity or action, and by the likelihood of occurrence of the given adverse consequences. But a risk seldom exists in isolation: chain of consequ... | [
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12175444 | 0910.0977 | 2009-10-06 | Maximum Cliques in Protein Structure Comparison | Computing the similarity between two protein structures is a crucial task in molecular biology, and has been extensively investigated. Many protein structure comparison methods can be modeled as maximum clique problems in specific k-partite graphs, referred here as alignment graphs. In this paper, we propose a new prot... | [
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18486983 | 0910.1119 | 2009-10-06 | Non-Concave Penalized Likelihood with NP-Dimensionality | Penalized likelihood methods are fundamental to ultra-high dimensional variable selection. How high dimensionality such methods can handle remains largely unknown. In this paper, we show that in the context of generalized linear models, such methods possess model selection consistency with oracle properties even for di... | [
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16310522 | 0910.1111 | 2009-10-06 | Metastable states and space-time phase transitions in a spin-glass model | We study large deviations of the dynamical activity in the random orthogonal model (ROM). This is a fully connected spin-glass model with one-step replica symmetry breaking behaviour, consistent with the random first-order transition scenario for structural glasses. We show that this model displays dynamical (space-tim... | [
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16773097 | 0910.0918 | 2009-10-06 | A Random Dynamical Systems Approach to Filtering in Large-scale Networks | The paper studies the problem of filtering a discrete-time linear system observed by a network of sensors. The sensors share a common communication medium to the estimator and transmission is bit and power budgeted. Under the assumption of conditional Gaussianity of the signal process at the estimator (which may be ens... | [
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17924436 | 0910.1046 | 2009-10-06 | Semi-Lagrangian schemes for linear and fully non-linear diffusion equations | For linear and fully non-linear diffusion equations of Bellman-Isaacs type, we introduce a class of approximation schemes based on differencing and interpolation. As opposed to classical numerical methods, these schemes work for general diffusions with coefficient matrices that may be non-diagonal dominant and arbitrar... | [
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15918457 | 0910.1019 | 2009-10-06 | Gaussian Approximation Potentials: the accuracy of quantum mechanics, without the electrons | We introduce a class of interatomic potential models that can be automatically generated from data consisting of the energies and forces experienced by atoms, derived from quantum mechanical calculations. The resulting model does not have a fixed functional form and hence is capable of modeling complex potential energy... | [
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15505241 | 0910.1121 | 2009-10-06 | LP Decoding meets LP Decoding: A Connection between Channel Coding and Compressed Sensing | This is a tale of two linear programming decoders, namely channel coding linear programming decoding (CC-LPD) and compressed sensing linear programming decoding (CS-LPD). So far, they have evolved quite independently. The aim of the present paper is to show that there is a tight connection between, on the one hand, CS-... | [
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7551687 | 0910.1014 | 2009-10-06 | Building upon Fast Multipole Methods to Detect and Model Organizations | Many models in natural and social sciences are comprised of sets of inter-acting entities whose intensity of interaction decreases with distance. This often leads to structures of interest in these models composed of dense packs of entities. Fast Multipole Methods are a family of methods developed to help with the calc... | [
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14374623 | 0910.1273 | 2009-10-07 | Adaboost with "Keypoint Presence Features" for Real-Time Vehicle Visual Detection | We present promising results for real-time vehicle visual detection, obtained with adaBoost using new original ?keypoints presence features?. These weak-classifiers produce a boolean response based on presence or absence in the tested image of a ?keypoint? (~ a SURF interest point) with a descriptor sufficiently simila... | [
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115157070 | 0910.1362 | 2009-10-07 | Unshackling Linear Algebra from Linear Notation | This paper provides an introduction to trace diagrams at a level suitable for advanced undergraduates. Trace diagrams are a non-traditional notation for linear algebra. Vectors are represented by edges in a diagram, and matrices by markings along the edges of the diagram. The notation is rigorous and permits proofs mor... | [
"math.HO"
] | null | [
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] | null | null | null |
119283826 | 0910.1223 | 2009-10-07 | 12.2-GHz methanol masers associated with 1.2-mm dust clumps: Quantifying high-mass star formation evolutionary schemes | We report the results of a search for 12.2-GHz methanol maser emission, targeted towards 113 known 6.7-GHz methanol masers associated with 1.2-mm dust continuum emission. Observations were carried out with the Australia Telescope National Facility (ATNF) Parkes 64-m radio telescope in the period 2008 June 20 - 25. We d... | [
"astro-ph.SR",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17408603 | 0910.1234 | 2009-10-07 | The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the Y_SZ-M_500 relation | (abridged) We investigate the regularity of cluster pressure profiles with REXCESS, a representative sample of 33 local clusters observed with XMM-Newton. The sample spans a mass range of 10^14 M_sun <M_500<10^15 M_sun. We derive an average profile from observations scaled by mass and z according to the standard self-s... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118535681 | 0910.1311 | 2009-10-07 | New Kochen-Specker Sets in Four Dimensions | We show that all possible 388 4-dim Kochen-Specker (KS) (vector) sets (of yes-no questions) with 18 through 23 vectors and 844 sets with 24 vectors all with component values from \{-1,0,1\} can be obtained by stripping vectors off a single system provided by Peres 20 years ago. In addition to them, we have found a numb... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1064137 | 0910.1294 | 2009-10-07 | Visual object categorization with new keypoint-based adaBoost features | We present promising results for visual object categorization, obtained with adaBoost using new original ?keypoints-based features?. These weak-classifiers produce a boolean response based on presence or absence in the tested image of a ?keypoint? (a kind of SURF interest point) with a descriptor sufficiently similar (... | [
"cs.CV",
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{
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... | null |
120291130 | 0910.1205 | 2009-10-07 | Financial Applications of Random Matrix Theory: a short review | We discuss the applications of Random Matrix Theory in the context of financial markets and econometric models, a topic about which a considerable number of papers have been devoted to in the last decade. This mini-review is intended to guide the reader through various theoretical results (the Marcenko-Pastur spectrum ... | [
"q-fin.ST",
"cond-mat.dis-nn",
"q-fin.RM"
] | null | [
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] | null | null | null |
263331118 | 0910.1295 | 2009-10-07 | Modular Traffic Sign Recognition applied to on-vehicle real-time visual detection of American and European speed limit signs | We present a new modular traffic signs recognition system, successfully applied to both American and European speed limit signs. Our sign detection step is based only on shape-detection (rectangles or circles). This enables it to work on grayscale images, contrary to most European competitors, which eases robustness to... | [
"cs.CV"
] | null | [
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{
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{
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"num_papers"... | null |
3238572 | 0910.1406 | 2009-10-07 | Hybrid Semantics of Stochastic Programs with Dynamic Reconfiguration | We begin by reviewing a technique to approximate the dynamics of stochastic programs --written in a stochastic process algebra-- by a hybrid system, suitable to capture a mixed discrete/continuous evolution. In a nutshell, the discrete dynamics is kept stochastic while the continuous evolution is given in terms of ODEs... | [
"cs.PL",
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] | null | [
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{
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118335345 | 0910.1325 | 2009-10-07 | Frequency Bin Entangled Photons | A monochromatic laser pumping a parametric down conversion crystal generates frequency entangled photon pairs. We study this experimentally by addressing such frequency entangled photons at telecommunication wavelengths (around 1550 nm) with fiber optics components such as electro-optic phase modulators and narrow band... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119284418 | 0910.1288 | 2009-10-07 | The White Dwarfs within 20 Parsecs of the Sun: Kinematics and Statistics | We present the kinematical properties, distribution of spectroscopic subtypes, stellar population subcomponents of the white dwarfs within 20 pc of the sun. We find no convincing evidence of halo white dwarfs in the total 20 pc sample of 129 white dwarfs nor is there convincing evidence of genuine thick disk subcompone... | [
"astro-ph.SR",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
56460018 | 0910.1093 | 2009-10-07 | Galaxy luminosities, stellar masses, sizes, velocity dispersions as a function of morphological type | We provide fits to the distribution of galaxy luminosity, size, velocity dispersion and stellar mass as a function of concentration index C_r and morphological type in the SDSS. We also quantify how estimates of the fraction of `early' or `late' type galaxies depend on whether the samples were cut in color, concentrati... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6265764 | 0910.1091 | 2009-10-07 | BLAST: the far-infrared/radio correlation in distant galaxies | We investigate the correlation between far-infrared (FIR) and radio luminosities in distant galaxies, a lynchpin of modern astronomy. We use data from the Balloon-borne Large Aperture Submillimetre Telescope (BLAST), Spitzer, the Large Apex BOlometer CamerA (LABOCA), the Very Large Array (VLA) and the Giant Metre-wave ... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2254047 | 0910.1191 | 2009-10-07 | Sorting from Noisy Information | This paper studies problems of inferring order given noisy information. In these problems there is an unknown order (permutation) $\pi$ on $n$ elements denoted by $1,...,n$. We assume that information is generated in a way correlated with $\pi$. The goal is to find a maximum likelihood $\pi^*$ given the information obs... | [
"cs.DS",
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] | null | [
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{
"author_id": "e mossel_1",
"name": "Elchanan Mossel",
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"num_papers": nul... | null |
35360258 | 0910.1201 | 2009-10-07 | Extracting bulk properties of self-assembling systems from small simulations | For systems that self assemble into finite-sized objects, it is sometimes convenient to compute the thermodynamics for a small system where a single assembly can form. However, we show that in the canonical ensemble the use of small systems can lead to significant finite-size effects due to the suppression of concentra... | [
"cond-mat.soft",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t ouldridge_1",
"name": "Thomas [\"E.\"] Ouldridge",
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{
"author_id": "a louis_4",
"name": "Ard [\"A.\"] Louis",
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"h_index": null,
"num... | null |
119260866 | 0910.1140 | 2009-10-07 | Deterministic weighted scale-free small-world networks | We propose a deterministic weighted scale-free small-world model for considering pseudofractal web with the coevolution of topology and weight. In the model, we have the degree distribution exponent $\gamma$ restricted to a range between 2 and 3, simultaneously tunable with two parameters. At the same time, we provide ... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn",
"physics.soc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y zhang_145",
"name": "Yichao Zhang",
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},
{
"author_id": "z zhang_150",
"name": "Zhongzhi Zhang",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
8253793 | 0910.1293 | 2009-10-07 | Introducing New AdaBoost Features for Real-Time Vehicle Detection | This paper shows how to improve the real-time object detection in complex robotics applications, by exploring new visual features as AdaBoost weak classifiers. These new features are symmetric Haar filters (enforcing global horizontal and vertical symmetry) and N-connexity control points. Experimental evaluation on a c... | [
"cs.CV",
"cs.LG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b stanciulescu_1",
"name": "Bogdan Stanciulescu",
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{
"author_id": "a breheret_1",
"name": "Amaury Breheret",
"publication_history": null,
"h_index": null,
"num_pa... | null |
118367297 | 0910.1348 | 2009-10-07 | A new low mass for the Hercules dSph: the end of a common mass scale for the dwarfs? | We present a new mass estimate for the Hercules dwarf spheroidal galaxy (dSph), based on the revised velocity dispersion obtained by Aden et al. (2009, arXiv:0908.3489). The removal of a significant foreground contamination using newly acquired Stromgren photometry has resulted in a reduced velocity dispersion. Using t... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
122126303 | 0910.1430 | 2009-10-08 | State price density estimation via nonparametric mixtures | We consider nonparametric estimation of the state price density encapsulated in option prices. Unlike usual density estimation problems, we only observe option prices and their corresponding strike prices rather than samples from the state price density. We propose to model the state price density directly with a nonpa... | [
"q-fin.CP",
"q-fin.PR",
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2248188 | 0910.1432 | 2009-10-08 | Analysis of Minnesota colon and rectum cancer point patterns with spatial and nonspatial covariate information | Colon and rectum cancer share many risk factors, and are often tabulated together as ``colorectal cancer'' in published summaries. However, recent work indicating that exercise, diet, and family history may have differential impacts on the two cancers encourages analyzing them separately, so that corresponding public h... | [
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
267911139 | 0910.4469 | 2009-10-08 | Investigating the robustness of the classical enzyme kinetic equations in small intracellular compartments | Classical descriptions of enzyme kinetics ignore the physical nature of the intracellular environment. Main implicit assumptions behind such approaches are that reactions occur in compartment volumes which are large enough so that molecular discreteness can be ignored and that molecular transport occurs via diffusion. ... | [
"q-bio.SC",
"q-bio.MN"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13577842 | 0910.1463 | 2009-10-08 | Near-Optimal Detection in MIMO Systems using Gibbs Sampling | In this paper we study a Markov Chain Monte Carlo (MCMC) Gibbs sampler for solving the integer least-squares problem. In digital communication the problem is equivalent to performing Maximum Likelihood (ML) detection in Multiple-Input Multiple-Output (MIMO) systems. While the use of MCMC methods for such problems has a... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m hansen_7",
"name": "Morten Hansen",
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},
{
"author_id": "b hassibi_1",
"name": "Babak Hassibi",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
546186 | 0910.1623 | 2009-10-08 | Modified Basis Pursuit Denoising(MODIFIED-BPDN) for Noisy Compressive Sensing with Partially Known Support | In this work, we study the problem of reconstructing a sparse signal from a limited number of linear 'incoherent' noisy measurements, when a part of its support is known. The known part of the support may be available from prior knowledge or from the previous time instant (in applications requiring recursive reconstruc... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "w lu_22",
"name": "Wei Lu",
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"num_citations": null
},
{
"author_id": "n vaswani_1",
"name": "Namrata Vaswani",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_c... | null |
14393504 | 0910.1511 | 2009-10-08 | Cooperation with an Untrusted Relay: A Secrecy Perspective | We consider the communication scenario where a source-destination pair wishes to keep the information secret from a relay node despite wanting to enlist its help. For this scenario, an interesting question is whether the relay node should be deployed at all. That is, whether cooperation with an untrusted relay node can... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
35579282 | 0910.1461 | 2009-10-08 | L\'evy-type diffusion on one-dimensional directed Cantor Graphs | L\'evy-type walks with correlated jumps, induced by the topology of the medium, are studied on a class of one-dimensional deterministic graphs built from generalized Cantor and Smith-Volterra-Cantor sets. The particle performs a standard random walk on the sets but is also allowed to move ballistically throughout the e... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "r burioni_1",
"name": "Raffaella Burioni",
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},
{
"author_id": "l caniparoli_1",
"name": "Luca Caniparoli",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
3060206 | 0910.1418 | 2009-10-08 | Modelling an Ammonium Transporter with SCLS | The Stochastic Calculus of Looping Sequences (SCLS) is a recently proposed modelling language for the representation and simulation of biological systems behaviour. It has been designed with the aim of combining the simplicity of notation of rewrite systems with the advantage of compositionality. It also allows a rathe... | [
"q-bio.QM",
"cs.CE",
"q-bio.CB"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m coppo_1",
"name": "Mario Coppo",
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},
{
"author_id": "f damiani_2",
"name": "Ferruccio Damiani",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
111378743 | 0910.1542 | 2009-10-08 | 2-Group Representations for Spin Foams | Just as 3d state sum models, including 3d quantum gravity, can be built using categories of group representations, "2-categories of 2-group representations" may provide interesting state sum models for 4d quantum topology, if not quantum gravity. Here we focus on the "Euclidean 2-group", built from the rotation group S... | [
"hep-th",
"gr-qc",
"math.QA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a baratin_1",
"name": "Aristide Baratin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d wise_1",
"name": "Derek [\"K.\"] Wise",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
13960100 | 0910.1639 | 2009-10-08 | On the Fundamental Limits of Interweaved Cognitive Radios | This paper considers the problem of channel sensing in cognitive radios. The system model considered is a set of N parallel (dis-similar) channels, where each channel at any given time is either available or occupied by a legitimate user. The cognitive radio is permitted to sense channels to determine each of their sta... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g chung_1",
"name": "Goochul Chung",
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"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s vishwanath_2",
"name": "Sriram Vishwanath",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
17987450 | 0910.1837 | 2009-10-09 | Quantum ripples in strongly correlated metals | We study how well-known effects of the long-ranged Friedel oscillations are affected by strong electronic correlations. We first show that their range and amplitude are significantly suppressed in strongly renormalized Fermi liquids. We then investigate the interplay of elastic and inelastic scattering in the presence ... | [
"cond-mat.str-el",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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