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14525538
0907.2135
2009-07-13
Shrinkage regression for multivariate inference with missing data, and an application to portfolio balancing
Portfolio balancing requires estimates of covariance between asset returns. Returns data have histories which greatly vary in length, since assets begin public trading at different times. This can lead to a huge amount of missing data--too much for the conventional imputation-based approach. Fortunately, a well-known f...
[ "stat.ME", "stat.AP" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "804161", "num_citations": null } ]
[ { "author_id": "r gramacy_1", "name": "Robert [\"B.\"] Gramacy", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e pantaleo_1", "name": "Ester Pantaleo", "publication_history": null, "h_index": null, "num_pape...
null
5062904
0907.2197
2009-07-13
Anisotropic electro-osmotic flow over super-hydrophobic surfaces
Patterned surfaces with large effective slip lengths, such as super-hydrophobic surfaces containing trapped gas bubbles, have the potential to greatly enhance electrokinetic phenomena. Existing theories assume either homogeneous flat surfaces or patterned surfaces with thin double layers (compared to the texture correl...
[ "physics.flu-dyn" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "15859412", "num_citations": null }, { "corpus_id": "28039682", "num_citations": null }, { "corpus_id": "42658232", "num_citations": null }, { "corpus_id": "14351212", "num_citations": null } ]
[ { "author_id": "s bahga_1", "name": "Supreet [\"Singh\"] Bahga", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o vinogradova_1", "name": "Olga [\"I.\"] Vinogradova", "publication_history": null, "h_index": null,...
null
11134144
0907.2267
2009-07-13
Band Gap Optimization of Two-Dimensional Photonic Crystals Using Semidefinite Programming and Subspace Methods
In this paper, we consider the optimal design of photonic crystal band structures for two-dimensional square lattices. The mathematical formulation of the band gap optimization problem leads to an infinite-dimensional Hermitian eigenvalue optimization problem parametrized by the dielectric material and the wave vector....
[ "math.OC", "math-ph", "math.MP", "physics.comp-ph", "physics.optics" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h men_2", "name": "Han Men", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n nguyen_23", "name": "Ngoc [\"Cuong\"] Nguyen", "publication_history": null, "h_index": null, "num_papers": null, ...
null
15925872
0907.1990
2009-07-13
Automated Protein Structure Classification: A Survey
Classification of proteins based on their structure provides a valuable resource for studying protein structure, function and evolutionary relationships. With the rapidly increasing number of known protein structures, manual and semi-automatic classification is becoming ever more difficult and prohibitively slow. There...
[ "cs.CE", "q-bio.BM" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "o hassanzadeh_1", "name": "Oktie Hassanzadeh", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
15776696
0907.2256
2009-07-13
Non-leptonic charmless Bc decays and their search at LHCb
We discuss the decay of Bc mesons into two light mesons (pi, K^(*), eta', rho, omega, phi). All these decay channels come from a single type of diagram, namely tree annihilation. This allows us to derive extremely simple SU(3) relations among these processes. The size of annihilation contributions is an important issue...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3510455
0907.2221
2009-07-13
French Roadmap for complex Systems 2008-2009
This second issue of the French Complex Systems Roadmap is the outcome of the Entretiens de Cargese 2008, an interdisciplinary brainstorming session organized over one week in 2008, jointly by RNSC, ISC-PIF and IXXI. It capitalizes on the first roadmap and gathers contributions of more than 70 scientists from major Fre...
[ "nlin.AO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "d chavalarias_1", "name": "David Chavalarias", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p bourgine_1", "name": "Paul [\"Emile\"] Bourgine", "publication_history": null, "h_index": null, ...
null
10667340
0907.2167
2009-07-13
Competition between collective and individual dynamics
Linking the microscopic and macroscopic behavior is at the heart of many natural and social sciences. This apparent similarity conceals essential differences across disciplines: while physical particles are assumed to optimize the global energy, economic agents maximize their own utility. Here, we solve exactly a Schel...
[ "physics.soc-ph", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2648713
0907.1948
2009-07-13
Amplified Hardness of Approximation for VCG-Based Mechanisms
If a two-player social welfare maximization problem does not admit a PTAS, we prove that any maximal-in-range truthful mechanism that runs in polynomial time cannot achieve an approximation factor better than 1/2. Moreover, for the k-player version of the same problem, the hardness of approximation improves to 1/k unde...
[ "cs.GT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s dughmi_1", "name": "Shaddin Dughmi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h fu_30", "name": "Hu Fu", "publication_history": null, "h_index": null, "num_papers": null, "num_cita...
null
382625
0907.2261
2009-07-13
Heavy tail phenomenon and convergence to stable laws for iterated Lipschitz maps
We consider the Markov chain $\{X_n^x\}_{n=0}^\infty$ on $\R^d$ defined by the stochastic recursion $X_{n}^{x}=\p_{\theta_{n}}(X_{n-1}^{x})$, starting at $x\in\R^d$, where $\theta_{1}, \theta_{2},...$ are i.i.d. random variables taking their values in a metric space $(\Theta, \mathfrak{r}),$ and $\p_{\theta_{n}}:\R^d\m...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
21231170
0907.2143
2009-07-13
The light-well: A tuneable free-electron light source on a chip
The passage of a free-electron beam through a nano-hole in a periodically layered metal/dielectric structure creates a new type of tuneable, nanoscale radiation source - a 'light-well'. With a lateral size of just a few hundred nanometers, and an emission intensity of ~200 W/cm^2 such light-wells may be employed in nan...
[ "cond-mat.mes-hall", "physics.optics" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g adamo_1", "name": "Giorgio Adamo", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k macdonald_2", "name": "Kevin [\"F.\"] Macdonald", "publication_history": null, "h_index": null, "num_paper...
null
119224696
0907.2372
2009-07-14
Analysis of hydrogen-rich magnetic white dwarfs detected in the Sloan Digital Sky Survey
We model the structure of the surface magnetic fields of the hydrogen-rich white dwarfs in the SDSS. We have calculated a grid of state-of-the-art theoretical optical spectra of hydrogen-rich magnetic white dwarfs with magnetic field strengths between 1 MG and 1200 MG for different angles, and for effective temperature...
[ "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
53036431
0907.2435
2009-07-14
Sequential Posted Pricing and Multi-parameter Mechanism Design
We consider the classical mathematical economics problem of {\em Bayesian optimal mechanism design} where a principal aims to optimize expected revenue when allocating resources to self-interested agents with preferences drawn from a known distribution. In single-parameter settings (i.e., where each agent's preference ...
[ "cs.GT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "12149871", "num_citations": null } ]
[ { "author_id": "s chawla_1", "name": "Shuchi Chawla", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j hartline_1", "name": "Jason [\"D.\"] Hartline", "publication_history": null, "h_index": null, "num_papers...
null
14498694
0907.2373
2009-07-14
Structural Properties of the Caenorhabditis elegans Neuronal Network
Despite recent interest in reconstructing neuronal networks, complete wiring diagrams on the level of individual synapses remain scarce and the insights into function they can provide remain unclear. Even for Caenorhabditis elegans, whose neuronal network is relatively small and stereotypical from animal to animal, pub...
[ "q-bio.NC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "l varshney_1", "name": "Lav [\"R.\"] Varshney", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b chen_111", "name": "Beth [\"L.\"] Chen", "publication_history": null, "h_index": null, "num_pap...
null
11688749
0907.2452
2009-07-14
Pattern Based Term Extraction Using ACABIT System
In this paper, we propose a pattern-based term extraction approach for Japanese, applying ACABIT system originally developed for French. The proposed approach evaluates termhood using morphological patterns of basic terms and term variants. After extracting term candidates, ACABIT system filters out non-terms from the ...
[ "cs.CL" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "k takeuchi_3", "name": "Koichi Takeuchi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k kageura_0", "name": "Kyo Kageura", "publication_history": null, "h_index": null, "num_papers": null, ...
null
119293112
0907.2282
2009-07-14
Design Arbitrary Shaped 2D Acoustic Cloak without Singularity
A method is proposed to design arbitrary shaped two dimensional (2D) isotropic-inertia acoustic cloaks without singularity. The method is based on the deformation view of the transformation method, where the transformation tensor A is identified as the deformation gradient tensor and the transformed material parameters...
[ "physics.class-ph", "physics.optics" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "118663951", "num_citations": null } ]
[ { "author_id": "j hu_98", "name": "Jin Hu", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "x zhou_55", "name": "Xiaoming Zhou", "publication_history": null, "h_index": null, "num_papers": null, "num_citat...
null
11918822
0907.2364
2009-07-14
On A Diagrammatic Proof of the Cayley-Hamilton Theorem
This note concerns a one-line diagrammatic proof of the Cayley-Hamilton Theorem. We discuss the proof's implications regarding the "core truth" of the theorem, and provide a generalization. We review the notation of trace diagrams and exhibit explicit diagrammatic descriptions of the coefficients of the characteristic ...
[ "math.RA", "math.QA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17458621
0907.2363
2009-07-14
Fractional Vector Calculus and Fractional Maxwell's Equations
The theory of derivatives and integrals of non-integer order goes back to Leibniz, Liouville, Grunwald, Letnikov and Riemann. The history of fractional vector calculus (FVC) has only 10 years. The main approaches to formulate a FVC, which are used in the physics during the past few years, will be briefly described in t...
[ "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
159433
0907.2451
2009-07-14
Nonparametric estimation in random coefficients binary choice models
Nous consid\'erons dans cet article des mod\`eles \`a choix binaires et coefficients al\'eatoires. Le but est d'estimer de mani\`ere nonparam\'etrique la densit\'e du coefficient al\'eatoire. Il s'agit d'un probl\`eme inverse mal pos\'e caract\'eris\'e par une transformation int\'egrale. Un nouvel estimateur de la dens...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2200463
0907.2471
2009-07-14
Benchmarking Declarative Approximate Selection Predicates
Declarative data quality has been an active research topic. The fundamental principle behind a declarative approach to data quality is the use of declarative statements to realize data quality primitives on top of any relational data source. A primary advantage of such an approach is the ease of use and integration wit...
[ "cs.DB", "cs.IR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a chandel_0", "name": "Amit Chandel", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o hassanzadeh_1", "name": "Oktie Hassanzadeh", "publication_history": null, "h_index": null, "num_papers": ...
null
856445
0907.2257
2009-07-14
Signature of primordial non-Gaussianity of phi^3-type in the mass function and bias of dark matter haloes
We explore the effect of a cubic correction gnl*phi^3 on the mass function and bias of dark matter haloes extracted from a series of large N-body simulations and compare it to theoretical predictions. Such cubic terms can be motivated in scenarios like the curvaton model, in which a large cubic correction can be produc...
[ "astro-ph.CO", "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v desjacques_1", "name": "Vincent Desjacques", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "u seljak_2", "name": "Uroš Seljak", "publication_history": null, "h_index": null, "num_papers": nu...
null
13400210
0907.2702
2009-07-15
Interference Channels with Destination Cooperation
Interference is a fundamental feature of the wireless channel. To better understand the role of cooperation in interference management, the two-user Gaussian interference channel where the destination nodes can cooperate by virtue of being able to both transmit and receive is studied. The sum-capacity of this channel i...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v prabhakaran_1", "name": "Vinod [\"M.\"] Prabhakaran", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p viswanath_1", "name": "Pramod Viswanath", "publication_history": null, "h_index": null, ...
null
15060093
0907.2586
2009-07-15
Optical tomography: forward and inverse problems
This paper is a review of recent mathematical and computational advances in optical tomography. We discuss the physical foundations of forward models for light propagation on microscopic, mesoscopic and macroscopic scales. We also consider direct and numerical approaches to the inverse problems that arise at each of th...
[ "math.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
892935
0907.2585
2009-07-15
GMap: Drawing Graphs as Maps
Information visualization is essential in making sense out of large data sets. Often, high-dimensional data are visualized as a collection of points in 2-dimensional space through dimensionality reduction techniques. However, these traditional methods often do not capture well the underlying structural information, clu...
[ "cs.CG" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e gansner_1", "name": "Emden [\"R.\"] Gansner", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y hu_53", "name": "Yifan Hu", "publication_history": null, "h_index": null, "num_papers": null, ...
null
8047046
0907.2506
2009-07-15
The Bjorken sum rule with Monte Carlo and Neural Network techniques
Determinations of structure functions and parton distribution functions have been recently obtained using Monte Carlo methods and neural networks as universal, unbiased interpolants for the unknown functional dependence. In this work the same methods are applied to obtain a parametrization of polarized Deep Inelastic S...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l debbio_1", "name": "Luigi [\"Del\"] Debbio", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a guffanti_1", "name": "Alberto Guffanti", "publication_history": null, "h_index": null, "num_pape...
null
8972115
0907.2599
2009-07-15
Multiple-Input Multiple-Output Gaussian Broadcast Channels with Common and Confidential Messages
This paper considers the problem of the multiple-input multiple-output (MIMO) Gaussian broadcast channel with two receivers (receivers 1 and 2) and two messages: a common message intended for both receivers and a confidential message intended only for receiver 1 but needing to be kept asymptotically perfectly secure fr...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
263792836
0907.2578
2009-07-15
On the integrality of the Taylor coefficients of mirror maps, II
We continue our study begun in "On the integrality of the Taylor coefficients of mirror maps" (arXiv:0907.2577) of the fine integrality properties of the Taylor coefficients of the series ${\bf q}(z)=z\exp({\bf G}(z)/{\bf F}(z))$, where ${\bf F}(z)$ and ${\bf G}(z)+\log(z) {\bf F}(z)$ are specific solutions of certain ...
[ "math.NT", "hep-th", "math.AG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119268531
0907.2713
2009-07-15
The race for supersymmetry: using mT2 for discovery
We describe how one may employ a very simple event selection, using only the kinematic variable mT2, to search for new particles at the LHC. The method is useful when searching for evidence of models (such as R-parity conserving supersymmetry) which have a Z2 parity and a weakly-interacting lightest parity-odd particle...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
494
0907.2621
2009-07-15
Homogeneous formulas and symmetric polynomials
We investigate the arithmetic formula complexity of the elementary symmetric polynomials S(k,n). We show that every multilinear homogeneous formula computing S(k,n) has size at least k^(Omega(log k))n, and that product-depth d multilinear homogeneous formulas for S(k,n) have size at least 2^(Omega(k^{1/d}))n. Since S(n...
[ "cs.CC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "p hrubes_1", "name": "Pavel Hrubes", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a yehudayoff_1", "name": "Amir Yehudayoff", "publication_history": null, "h_index": null, "num_papers": null...
null
17561123
0907.2944
2009-07-16
Operation of a double-phase pure argon Large Electron Multiplier Time Projection Chamber: comparison of single and double phase operation
We constructed and operated a double phase (liquid-vapour) pure argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC) with a sensitive area of 10x10 cm$^2$ and up to 30 cm of drift length. The LEM is a macroscopic hole electron multiplier built with standard PCB techniques: drifting electrons are extrac...
[ "physics.ins-det" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a badertscher_1", "name": "André Badertscher", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l knecht_1", "name": "L. Knecht", "publication_history": null, "h_index": null, "num_papers": null...
null
14017798
0907.2882
2009-07-16
The stability for the Cauchy problem for elliptic equations
We discuss the ill-posed Cauchy problem for elliptic equations, which is pervasive in inverse boundary value problems modeled by elliptic equations. We provide essentially optimal stability results, in wide generality and under substantially minimal assumptions. As a general scheme in our arguments, we show that all su...
[ "math.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15850863
0907.2924
2009-07-16
A Photometric Variability Survey of Field K and M Dwarf Stars with HATNet
Using light curves from the HATNet survey for transiting extrasolar planets we investigate the optical broad-band photometric variability of a sample of 27,560 field K and M dwarfs selected by color and proper-motion. A total of 2120 stars exhibit potential variability, including 95 stars with eclipses and 60 stars wit...
[ "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12976178
0907.2896
2009-07-16
Decentralized Admission Control for Power-Controlled Wireless Links
This paper deals with the problem of admission control/channel access in power-controlled decentralized wireless networks, in which the quality-of-service (QoS) is expressed in terms of the signal-to-interference ratio (SIR). We analyze a previously proposed admission control algorithm, which was designed to maintain t...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s stańczak_1", "name": "Sławomir Stańczak", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m kaliszan_1", "name": "Michal Kaliszan", "publication_history": null, "h_index": null, "num_papers":...
null
119177992
0907.2814
2009-07-16
The thawing dark energy dynamics: Can we detect it?
We consider different classes of scalar field models including quintessence, and tachyon scalar fields with a variety of generic potential belonging to thawing type. Assuming the scalar field is initially frozen at $w=-1$, we evolve the system until the present time. We focus on observational quantities like Hubble par...
[ "astro-ph.CO", "gr-qc", "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s sen_4", "name": "Somasri Sen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a sen_2", "name": "Anjan [\"Ananda\"] Sen", "publication_history": null, "h_index": null, "num_papers": null, ...
null
15143562
0907.2759
2009-07-16
On Cyclic and Nearly Cyclic Multiagent Interactions in the Plane
We discuss certain types of cyclic and nearly cyclic interactions among N "point"-agents in the plane, leading to formations of interesting limiting geometric configurations. Cyclic pursuit and local averaging interactions have been analyzed in the context of multi-agent gathering. In this paper, we consider some nearl...
[ "cs.MA", "cs.RO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f oggier_1", "name": "Frédérique [\"E.\"] Oggier", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a bruckstein_1", "name": "Alfred [\"Marcel\"] Bruckstein", "publication_history": null, "h_index":...
null
18562552
0907.2952
2009-07-16
The Evolution of Wide Binary Stars
We study the orbital evolution of wide binary stars in the solar neighborhood due to gravitational perturbations from passing stars. We include the effects of the Galactic tidal field and continue to follow the stars after they become unbound. For a wide variety of initial semi-major axes and formation times, we find t...
[ "astro-ph.GA", "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17208624
0907.2796
2009-07-16
Matrix Product States, Projected Entangled Pair States, and variational renormalization group methods for quantum spin systems
This article reviews recent developments in the theoretical understanding and the numerical implementation of variational renormalization group methods using matrix product states and projected entangled pair states.
[ "quant-ph", "cond-mat.str-el", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1533412
0907.2955
2009-07-16
General Deviants: An Analysis of Perturbations in Compressed Sensing
We analyze the Basis Pursuit recovery of signals with general perturbations. Previous studies have only considered partially perturbed observations Ax + e. Here, x is a signal which we wish to recover, A is a full-rank matrix with more columns than rows, and e is simple additive noise. Our model also incorporates pertu...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "12605120", "num_citations": null } ]
[ { "author_id": "m herman_1", "name": "Matthew [\"A.\"] Herman", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t strohmer_1", "name": "Thomas Strohmer", "publication_history": null, "h_index": null, "num_pape...
null
119191942
0907.2994
2009-07-17
Tensor network decompositions in the presence of a global symmetry
Tensor network decompositions offer an efficient description of certain many-body states of a lattice system and are the basis of a wealth of numerical simulation algorithms. We discuss how to incorporate a global symmetry, given by a compact, completely reducible group G, in tensor network decompositions and algorithm...
[ "cond-mat.str-el" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
123596782
0907.3137
2009-07-17
A Fast $\mathcal{L}_p$ Spike Alignment Metric
The metrization of the space of neural responses is an ongoing research program seeking to find natural ways to describe, in geometrical terms, the sets of possible activities in the brain. One component of this program are the {\em spike metrics}, notions of distance between two spike trains recorded from a neuron. Al...
[ "q-bio.NC", "q-bio.QM" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "8045786", "num_citations": null } ]
[ { "author_id": "a dubbs_1", "name": "Alexander [\"J.\"] Dubbs", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b seiler_0", "name": "Brad [\"A.\"] Seiler", "publication_history": null, "h_index": null, "num_p...
null
116337568
0907.3006
2009-07-17
Model for frustrated spin-orbital chains: application to CaV2O4
Motivated by recent interest in quasi-one-dimensional compound CaV2O4, we study the ground states of a spin-orbital chain characterized by an Ising-like orbital Hamiltonian and frustrated interactions between S=1 spins. The on-site spin-orbit interaction and Jahn-Teller effect compete with inter-site superexchange lead...
[ "cond-mat.str-el", "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g chern_1", "name": "Gia-Wei Chern", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n perkins_1", "name": "Natalia [\"B.\"] Perkins", "publication_history": null, "h_index": null, "num_papers"...
null
14335924
0907.2954
2009-07-17
Strong homotopy types, nerves and collapses
We introduce the theory of strong homotopy types of simplicial complexes. Similarly to classical simple homotopy theory, the strong homotopy types can be described by elementary moves. An elementary move in this setting is called a strong collapse and it is a particular kind of simplicial collapse. The advantage of usi...
[ "math.GT", "math.AT", "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7585696
0907.3025
2009-07-17
Properties of Magneto-Hydrodynamic Waves in the Solar Photosphere with Hinode
We report the observations of the magneto-hydrodynamic waves propagating along magnetic flux tubes in the solar photosphere. We identified 20 isolated strong peaks (8 peaks for pores and 12 peaks for inter-granular magnetic structure) in the power spectra of the l.o.s. (line-of-sight) magnetic flux, the l.o.s. velocity...
[ "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15108925
0907.3019
2009-07-17
Rational Synthesis
Synthesis is the automated construction of a system from its specification. The system has to satisfy its specification in all possible environments. Modern systems often interact with other systems, or agents. Many times these agents have objectives of their own, other than to fail the system. Thus, it makes sense to ...
[ "cs.LO", "cs.GT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16622414
0907.3149
2009-07-18
Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
We present new determinations of the cosmic expansion history from red-envelope galaxies. We have obtained for this purpose high-quality spectra with the Keck-LRIS spectrograph of red-envelope galaxies in 24 galaxy clusters in the redshift range 0.2 < z < 1.0. We complement these Keck spectra with high-quality, publicl...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
214651664
0907.3296
2009-07-19
Non-Invertible Gabor Transforms
Time-frequency analysis, such as the Gabor transform, plays an important role in many signal processing applications. The redundancy of such representations is often directly related to the computational load of any algorithm operating in the transform domain. To reduce complexity, it may be desirable to increase the t...
[ "math.CA", "math.FA" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "3020564", "num_citations": null } ]
[ { "author_id": "e matusiak_0", "name": "Ewa Matusiak", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t michaeli_1", "name": "Tomer Michaeli", "publication_history": null, "h_index": null, "num_papers": null,...
null
118440998
0907.3320
2009-07-19
Thermodynamic efficiency of information and heat flow
A basic task of information processing is information transfer (flow). Here we study a pair of Brownian particles each coupled to a thermal bath at temperature $T_1$ and $T_2$, respectively. The information flow in such a system is defined via the time-shifted mutual information. The information flow nullifies at equil...
[ "cond-mat.stat-mech", "cond-mat.dis-nn" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a allahverdyan_1", "name": "Armen [\"E.\"] Allahverdyan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d janzing_1", "name": "Dominik Janzing", "publication_history": null, "h_index": null, ...
null
16937264
0907.3291
2009-07-19
The Compound Capacity of Polar Codes
We consider the compound capacity of polar codes under successive cancellation decoding for a collection of binary-input memoryless output-symmetric channels. By deriving a sequence of upper and lower bounds, we show that in general the compound capacity under successive decoding is strictly smaller than the unrestrict...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
318392
0907.3323
2009-07-19
Homodyne locking of a squeezer
We report on the successful implementation of a new approach to locking the frequencies of an OPO-based squeezed-vacuum source and its driving laser. The technique allows the simultaneous measurement of the phase-shifts induced by a cavity, which may be used for the purposes of frequency-locking, as well as the simulta...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m heurs_1", "name": "Michèle Heurs", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "i petersen_1", "name": "Ian [\"R.\"] Petersen", "publication_history": null, "h_index": null, "num_papers": ...
null
30108487
0907.3251
2009-07-19
Mean first-passage time for random walks on the T-graph
For random walks on networks (graphs), it is a theoretical challenge to explicitly determine the mean first-passage time (MFPT) between two nodes averaged over all pairs. In this paper, we study the MFPT of random walks in the famous T-graph, linking this important quantity to the resistance distance in electronic netw...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "z zhang_150", "name": "Zhongzhi Zhang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y lin_82", "name": "Yuan Lin", "publication_history": null, "h_index": null, "num_papers": null, "num...
null
261281936
0907.3338
2009-07-20
Message Passing Algorithms for Sparse Network Alignment
Network alignment generalizes and unifies several approaches for forming a matching or alignment between the vertices of two graphs. We study a mathematical programming framework for network alignment problem and a sparse variation of it where only a small number of matches between the vertices of the two graphs are po...
[ "math.OC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m bayati_1", "name": "Mohsen Bayati", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d gleich_1", "name": "David [\"F.\"] Gleich", "publication_history": null, "h_index": null, "num_papers": n...
null
10882180
0907.3510
2009-07-20
Superconductors from Superstrings
We establish that in a large class of strongly coupled 3+1 dimensional N=1 quiver conformal field theories with gravity duals, adding a chemical potential for the R-charge leads to the existence of superfluid states in which a chiral primary operator of the schematic form O = \lambda\lambda + W condenses. Here \lambda ...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s gubser_1", "name": "Steven [\"S\"] Gubser", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c herzog_1", "name": "Christopher [\"P.\"] Herzog", "publication_history": null, "h_index": null, "...
null
670696
0907.3341
2009-07-20
Opportunistic Secrecy with a Strict Delay Constraint
We investigate the delay limited secrecy capacity of the flat fading channel under two different assumptions on the available transmitter channel state information (CSI). The first scenario assumes perfect prior knowledge of both the main and eavesdropper channel gains. Here, upper and lower bounds on the delay limited...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "3264079", "num_citations": null } ]
[ { "author_id": "k khalil_2", "name": "Karim Khalil", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o koyluoglu_1", "name": "Onur [\"Ozan\"] Koyluoglu", "publication_history": null, "h_index": null, "num_pape...
null
17329797
0907.3471
2009-07-20
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050
We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute planet detection efficiencies for this event in order to determine its sensitivity to the presence of planets around the lens star. Both fini...
[ "astro-ph.EP", "astro-ph.SR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v batista_1", "name": "Virginie Batista", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s dong_51", "name": "Subo Dong", "publication_history": null, "h_index": null, "num_papers": null, ...
null
14852133
0907.3381
2009-07-20
Disorder chaos and multiple valleys in spin glasses
We prove that the Sherrington-Kirkpatrick model of spin glasses is chaotic under small perturbations of the couplings at any temperature in the absence of an external field. The result is proved for two kinds of perturbations: (a) distorting the couplings via Ornstein-Uhlenbeck flows, and (b) replacing a small fraction...
[ "math.PR", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2637516
0907.3304
2009-07-20
Multiscale mobility networks and the large scale spreading of infectious diseases
Among the realistic ingredients to be considered in the computational modeling of infectious diseases, human mobility represents a crucial challenge both on the theoretical side and in view of the limited availability of empirical data. In order to study the interplay between small-scale commuting flows and long-range ...
[ "physics.soc-ph", "cond-mat.stat-mech", "q-bio.PE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
88512737
0907.3454
2009-07-20
Generalized density clustering
We study generalized density-based clustering in which sharply defined clusters such as clusters on lower-dimensional manifolds are allowed. We show that accurate clustering is possible even in high dimensions. We propose two data-based methods for choosing the bandwidth and we study the stability properties of density...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
16708071
0907.3450
2009-07-20
Limits, discovery and cut optimization for a Poisson process with uncertainty in background and signal efficiency: TRolke 2.0
A C++ class was written for the calculation of frequentist confidence intervals using the profile likelihood method. Seven combinations of Binomial, Gaussian, Poissonian and Binomial uncertainties are implemented. The package provides routines for the calculation of upper and lower limits, sensitivity and related prope...
[ "physics.data-an", "hep-ex", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119181467
0907.3354
2009-07-20
Limits on the luminosity function of Ly-alpha emitters at z = 7.7
The Ly-alpha luminosity function (LF) of high-redshift Ly-alpha emitters (LAEs) is one of the few observables of the re-ionization epoch accessible to date with 8-10 m class telescopes. The evolution with redshift allows one to constrain the evolution of LAEs and their role in re-ionizing the Universe at the end of the...
[ "astro-ph.CO", "astro-ph.GA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13234116
0907.3156
2009-07-20
Learning Rates and States from Biophysical Time Series: A Bayesian Approach to Model Selection and Single-Molecule FRET Data
Time series data provided by single-molecule Forster resonance energy transfer (sm-FRET) experiments offer the opportunity to infer not only model parameters describing molecular complexes, e.g. rate constants, but also information about the model itself, e.g. the number of conformational states. Resolving whether or h...
[ "q-bio.QM", "q-bio.BM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2548154
0907.3493
2009-07-20
Secure Network Coding for Wiretap Networks of Type II
We consider the problem of securing a multicast network against a wiretapper that can intercept the packets on a limited number of arbitrary network edges of its choice. We assume that the network employs the network coding technique to simultaneously deliver the packets available at the source to all the receivers. We...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "6932277", "num_citations": null } ]
[ { "author_id": "s rouayheb_1", "name": "Salim [\"Y.\",\"El\"] Rouayheb", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e soljanin_1", "name": "Emina Soljanin", "publication_history": null, "h_index": null, "...
null
119237884
0907.3356
2009-07-20
High-precision photometry by telescope defocussing. II. The transiting planetary system WASP-4
We present and analyse light curves of four transits of the Southern hemisphere extrasolar planetary system WASP-4, obtained with a telescope defocussed so the radius of each point spread function was 17 arcsec (44 pixels). This approach minimises both random and systematic errors, allowing us to achieve scatters of be...
[ "astro-ph.SR", "astro-ph.EP" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "53606165", "num_citations": null }, { "corpus_id": "5662608", "num_citations": null }, { "corpus_id": "3039909", "num_citations": null }, { "corpus_id": "10583072", "num_citations": null }, { "corpus_id": "14276604", "num_citations": null }, ...
[ { "author_id": "j southworth_1", "name": "John Southworth", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t hinse_1", "name": "Tobias [\"C.\"] Hinse", "publication_history": null, "h_index": null, "num_paper...
null
119247079
0907.3155
2009-07-20
Identifying top partners at LHC
We systematically study the possible signals at LHC of new vector-like quarks mainly coupled to the third generation. We consider heavy quarks T, B, X, Y of charges 2/3, -1/3, 5/3 and -4/3, respectively, in SU(2)_L isosinglets T_{L,R}, B_{L,R}, or isodoublets (T B)_{L,R}, (X T)_{L,R} or (B Y)_{L,R}. Analyses based on a...
[ "hep-ph", "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6670781
0907.3574
2009-07-21
Message Passing Algorithms for Compressed Sensing
Compressed sensing aims to undersample certain high-dimensional signals, yet accurately reconstruct them by exploiting signal characteristics. Accurate reconstruction is possible when the object to be recovered is sufficiently sparse in a known basis. Currently, the best known sparsity-undersampling tradeoff is achieve...
[ "cs.IT", "cond-mat.dis-nn", "math.IT", "stat.CO" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "312260", "num_citations": null }, { "corpus_id": "7033413", "num_citations": null }, { "corpus_id": "3350404", "num_citations": null } ]
[ { "author_id": "d donoho_1", "name": "David [\"L.\"] Donoho", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a maleki_1", "name": "Arian Maleki", "publication_history": null, "h_index": null, "num_papers": nu...
null
16537920
0907.3605
2009-07-21
Dimensional Enhancement via Supersymmetry
We explain how the representation theory associated with supersymmetry in diverse dimensions is encoded within the representation theory of supersymmetry in one time-like dimension. This is enabled by algebraic criteria, derived, exhibited, and utilized in this paper, which indicate which subset of one-dimensional supe...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15496123
0907.3477
2009-07-21
Black Hole Superradiance From Kerr/CFT
The superradiant scattering of a scalar field with frequency and angular momentum (\omega,m) by a near-extreme Kerr black hole with mass and spin (M,J) was derived in the seventies by Starobinsky, Churilov, Press and Teukolsky. In this paper we show that for frequencies scaled to the superradiant bound the full functio...
[ "hep-th", "astro-ph.HE", "gr-qc" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13989348
0907.3708
2009-07-21
Statistical significance of communities in networks
Nodes in real-world networks are usually organized in local modules. These groups, called communities, are intuitively defined as sub-graphs with a larger density of internal connections than of external links. In this work, we introduce a new measure aimed at quantifying the statistical significance of single communit...
[ "physics.soc-ph", "cond-mat.stat-mech", "stat.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11942472
0907.3521
2009-07-21
A Numerical Approach to Performance Analysis of Quickest Change-Point Detection Procedures
For the most popular sequential change detection rules such as CUSUM, EWMA, and the Shiryaev-Roberts test, we develop integral equations and a concise numerical method to compute a number of performance metrics, including average detection delay and average time to false alarm. We pay special attention to the Shiryaev-...
[ "stat.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10963334
0907.3666
2009-07-21
Various thresholds for $\ell_1$-optimization in compressed sensing
Recently, \cite{CRT,DonohoPol} theoretically analyzed the success of a polynomial $\ell_1$-optimization algorithm in solving an under-determined system of linear equations. In a large dimensional and statistical context \cite{CRT,DonohoPol} proved that if the number of equations (measurements in the compressed sensing ...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference", "target.key_reference" ]
[ { "corpus_id": "12605120", "num_citations": null }, { "corpus_id": "7033413", "num_citations": null }, { "corpus_id": "8511844", "num_citations": null } ]
[ { "author_id": "m stojnic_1", "name": "Mihailo Stojnic", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
15603256
0907.3566
2009-07-21
Horava-Lifshitz f(R) Gravity
This paper is devoted to the construction of new type of f(R) theories of gravity that are based on the principle of detailed balance. We discuss two versions of these theories with and without the projectability condition.
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11006430
0907.3707
2009-07-21
Follow-up observations at 16 and 33 GHz of extragalactic sources from WMAP 3-year data: I - Spectral properties
We present follow-up observations of 97 point sources from the Wilkinson Microwave Anisotropy Probe (WMAP) 3-year data, contained within the New Extragalactic WMAP Point Source (NEWPS) catalogue between declinations of -4 and +60 degrees; the sources form a flux-density-limited sample complete to 1.1 Jy (approximately ...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "118486073", "num_citations": null }, { "corpus_id": "14549690", "num_citations": null }, { "corpus_id": "17592336", "num_citations": null } ]
[ { "author_id": "m davies_8", "name": "Matthew [\"L.\"] Davies", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t franzen_1", "name": "Thomas [\"M.\",\"O.\"] Franzen", "publication_history": null, "h_index": null,...
null
17261318
0907.3780
2009-07-21
On Lower Bounds for Constant Width Arithmetic Circuits
The motivation for this paper is to study the complexity of constant-width arithmetic circuits. Our main results are the following. 1. For every k > 1, we provide an explicit polynomial that can be computed by a linear-sized monotone circuit of width 2k but has no subexponential-sized monotone circuit of width k. It fo...
[ "cs.CC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v arvind_2", "name": "Vikraman Arvind", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p joglekar_1", "name": "Pushkar [\"S.\"] Joglekar", "publication_history": null, "h_index": null, "num_pa...
null
12276704
0907.3610
2009-07-21
HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk Maxwell Telescope
This paper describes a new Heterodyne Array Receiver Programme (HARP) and Auto-Correlation Spectral Imaging System (ACSIS) that have recently been installed and commissioned on the James Clerk Maxwell Telescope (JCMT). The 16-element focal-plane array receiver, operating in the submillimetre from 325 to 375 GHz, offers...
[ "astro-ph.IM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15449970
0907.3524
2009-07-21
Efficiency-Loss of Greedy Schedules in Non-Preemptive Processing of Jobs with Decaying Value
We consider the problem of dynamically scheduling J jobs on N processors for non-preemptive execution where the value of each job (or the reward garnered upon completion) decays over time. All jobs are initially available in a buffer and the distribution of their service times are known. When a processor becomes availa...
[ "math.OC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "c chan_1", "name": "Carri [\"W.\"] Chan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n bambos_1", "name": "Nicholas Bambos", "publication_history": null, "h_index": null, "num_papers": nul...
null
766663
0907.3679
2009-07-21
Block-length dependent thresholds in block-sparse compressed sensing
One of the most basic problems in compressed sensing is solving an under-determined system of linear equations. Although this problem seems rather hard certain $\ell_1$-optimization algorithm appears to be very successful in solving it. The recent work of \cite{CRT,DonohoPol} rigorously proved (in a large dimensional a...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "12605120", "num_citations": null }, { "corpus_id": "7033413", "num_citations": null }, { "corpus_id": "16137430", "num_citations": null } ]
[ { "author_id": "m stojnic_1", "name": "Mihailo Stojnic", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
6104125
0907.3754
2009-07-21
On the Geometry of Differential Privacy
We consider the noise complexity of differentially private mechanisms in the setting where the user asks $d$ linear queries $f\colon\Rn\to\Re$ non-adaptively. Here, the database is represented by a vector in $\Rn$ and proximity between databases is measured in the $\ell_1$-metric. We show that the noise complexity is d...
[ "cs.CC", "cs.CR", "cs.DS" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17090214
0907.3740
2009-07-21
Empirical Bernstein Bounds and Sample Variance Penalization
We give improved constants for data dependent and variance sensitive confidence bounds, called empirical Bernstein bounds, and extend these inequalities to hold uniformly over classes of functionswhose growth function is polynomial in the sample size n. The bounds lead us to consider sample variance penalization, a nov...
[ "stat.ML" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference", "target.key_reference" ]
[]
[ { "author_id": "a maurer_1", "name": "Andreas Maurer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m pontil_1", "name": "Massimiliano Pontil", "publication_history": null, "h_index": null, "num_papers": nu...
null
11866997
0907.3654
2009-07-21
Optimization of Synthesis Oversampled Complex Filter Banks
An important issue with oversampled FIR analysis filter banks (FBs) is to determine inverse synthesis FBs, when they exist. Given any complex oversampled FIR analysis FB, we first provide an algorithm to determine whether there exists an inverse FIR synthesis system. We also provide a method to ensure the Hermitian sym...
[ "cs.IT", "cs.SY", "eess.SY", "math.IT", "math.OC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "j gauthier_4", "name": "Jérôme Gauthier", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l duval_1", "name": "Laurent Duval", "publication_history": null, "h_index": null, "num_papers": null, ...
null
7402734
0907.3920
2009-07-22
Quantum algorithms for testing properties of distributions
Suppose one has access to oracles generating samples from two unknown probability distributions P and Q on some N-element set. How many samples does one need to test whether the two distributions are close or far from each other in the L_1-norm ? This and related questions have been extensively studied during the last ...
[ "quant-ph", "cs.CC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "6581885", "num_citations": null } ]
[ { "author_id": "s bravyi_1", "name": "Sergey Bravyi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a harrow_1", "name": "Aram [\"Wettroth\"] Harrow", "publication_history": null, "h_index": null, "num_paper...
null
15132124
0907.3986
2009-07-22
Contextual Bandits with Similarity Information
In a multi-armed bandit (MAB) problem, an online algorithm makes a sequence of choices. In each round it chooses from a time-invariant set of alternatives and receives the payoff associated with this alternative. While the case of small strategy sets is by now well-understood, a lot of recent work has focused on MAB pr...
[ "cs.DS", "cs.LG" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference", "target.key_reference" ]
[ { "corpus_id": "260480544", "num_citations": null } ]
[ { "author_id": "a slivkins_2", "name": "Aleksandrs Slivkins", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
50164741
0907.3749
2009-07-22
Laguerre semigroup and Dunkl operators
We construct a two-parameter family of actions \omega_{k,a} of the Lie algebra sl(2,R) by differential-difference operators on R^N \setminus {0}. Here, k is a multiplicity-function for the Dunkl operators, and a>0 arises from the interpolation of the Weil representation of Mp(N,R) and the minimal unitary representation...
[ "math.RT", "math-ph", "math.CA", "math.MP", "math.QA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16633947
0907.3900
2009-07-22
Hot C-rich white dwarfs: testing the DB-DQ transition through pulsations
Hot DQ white dwarfs constitute a new class of white dwarf stars, uncovered recently within the framework of the SDSS project. Recently, three hot DQ white dwarfs have been reported to exhibit photometric variability with periods compatible with pulsation g-modes. Here, we present a nonadiabatic pulsation analysis of th...
[ "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16642995
0907.3905
2009-07-22
The role of environment in the morphological transformation of galaxies in 9 intermediate redshift clusters
[abridged] We analyze a sample of 9 massive clusters at 0.4<z<0.6 observed with MegaCam in 4 photometric bands (g,r,i,z) from the core to a radius of 5 Mpc (~4000 galaxies). Galaxy cluster candidates are selected using photometric redshifts computed with HyperZ. Morphologies are estimated with galSVM in two broad morph...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "2400156", "num_citations": null }, { "corpus_id": "14325264", "num_citations": null }, { "corpus_id": "2213198", "num_citations": null }, { "corpus_id": "15470765", "num_citations": null }, { "corpus_id": "15086159", "num_citations": null }, ...
[ { "author_id": "m huertas-company_1", "name": "Marc Huertas-Company", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g foex_1", "name": "G. Foex", "publication_history": null, "h_index": null, "num_papers": n...
null
14437746
0907.3772
2009-07-22
The Maximum Wiener Index of Trees with Given Degree Sequences
The Wiener index of a connected graph is the sum of topological distances between all pairs of vertices. Since Wang gave a mistake result on the maximum Wiener index for given tree degree sequence, in this paper, we investigate the maximum Wiener index of trees with given degree sequences and extremal trees which attai...
[ "math.CO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "x zhang_354", "name": "Xiaodong Zhang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y liu_474", "name": "Y. Liu", "publication_history": null, "h_index": null, "num_papers": null, "num_...
null
17275325
0907.3843
2009-07-22
Follow-up observations at 16 and 33 GHz of extragalactic sources from WMAP 3-year data: II - Flux-density variability
Using the Arcminute Microkelvin Imager (AMI) at 16 GHz and the Very Small Array (VSA) at 33 GHz to make follow-up observations of sources in the New Extragalactic WMAP Point Source Catalogue, we have investigated the flux-density variability in a complete sample of 97 sources over timescales of a few months to approxim...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "119371788", "num_citations": null } ]
[ { "author_id": "t franzen_1", "name": "Thomas [\"M.\",\"O.\"] Franzen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m davies_8", "name": "Matthew [\"L.\"] Davies", "publication_history": null, "h_index": null,...
null
14522520
0907.3924
2009-07-22
Timescales of spike-train correlation for neural oscillators with common drive
We examine the effect of the phase-resetting curve (PRC) on the transfer of correlated input signals into correlated output spikes in a class of neural models receiving noisy, super-threshold stimulation. We use linear response theory to approximate the spike correlation coefficient in terms of moments of the associate...
[ "q-bio.NC", "q-bio.QM" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a barreiro_1", "name": "Andrea [\"K.\"] Barreiro", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e shea-brown_1", "name": "Eric Shea-Brown", "publication_history": null, "h_index": null, "num...
null
243678
0907.3823
2009-07-22
USUM: Update Summary Generation System
Huge amount of information is present in the World Wide Web and a large amount is being added to it frequently. A query-specific summary of multiple documents is very helpful to the user in this context. Currently, few systems have been proposed for query-specific, extractive multi-document summarization. If a summary ...
[ "cs.IR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "c chowdary_1", "name": "C. [\"Ravindranath\"] Chowdary", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p kumar_21", "name": "P. [\"Sreenivasa\"] Kumar", "publication_history": null, "h_index": nu...
null
9988133
0907.3886
2009-07-22
Episodic accretion at early stages of evolution of low mass stars and brown dwarfs: a solution for the observed luminosity spread in HR diagrams?
We present evolutionary models for young low mass stars and brown dwarfs taking into account episodic phases of accretion at early stages of the evolution, a scenario supported by recent large surveys of embedded protostars. An evolution including short episodes of vigorous accretion ($\mdot \ge 10^{-4} \msolyr$) follo...
[ "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119277865
0907.3896
2009-07-22
Conformal vs confining scenario in SU(2) with adjoint fermions
The masses of the lowest-lying states in the meson and in the gluonic sector of an SU(2) gauge theory with two Dirac flavors in the adjoint representation are measured on the lattice at a fixed value of the lattice coupling $\beta = 4/g_0^2 = 2.25$ for values of the bare fermion mass $m_0$ that span a range between the...
[ "hep-lat" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l debbio_1", "name": "Luigi [\"Del\"] Debbio", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b lucini_1", "name": "Biagio Lucini", "publication_history": null, "h_index": null, "num_papers": ...
null
361157
0907.3874
2009-07-22
Deep Diving into BitTorrent Locality
A substantial amount of work has recently gone into localizing BitTorrent traffic within an ISP in order to avoid excessive and often times unnecessary transit costs. Several architectures and systems have been proposed and the initial results from specific ISPs and a few torrents have been encouraging. In this work we...
[ "cs.NI", "cs.CY" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r rumín_1", "name": "Rubén [\"Cuevas\"] Rumín", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n laoutaris_1", "name": "Nikolaos Laoutaris", "publication_history": null, "h_index": null, "num_...
null
14448228
0907.3819
2009-07-22
Self-adaptive web intrusion detection system
The evolution of the web server contents and the emergence of new kinds of intrusions make necessary the adaptation of the intrusion detection systems (IDS). Nowadays, the adaptation of the IDS requires manual -- tedious and unreactive -- actions from system administrators. In this paper, we present a self-adaptive int...
[ "cs.NI", "cs.AI", "cs.MA" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "t guyet_1", "name": "Thomas Guyet", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r quiniou_1", "name": "Rene Quiniou", "publication_history": null, "h_index": null, "num_papers": null, "...
null
1555969
0907.3901
2009-07-22
A well-posedness theory in measures for some kinetic models of collective motion
We present existence, uniqueness and continuous dependence results for some kinetic equations motivated by models for the collective behavior of large groups of individuals. Models of this kind have been recently proposed to study the behavior of large groups of animals, such as flocks of birds, swarms, or schools of f...
[ "math.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
96242134
0907.3992
2009-07-23
Frequency converter based on nanoscale MgO magnetic tunnel junctions
We observe both dc voltage rectification and frequency conversion that occur when a reference microwave current is injected to a MgO based magnetic tunnel junction (MTJ). The rectification that is spin-transfer torque dependent is observed when the frequency of the input microwave current coincides with the resonance f...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b georges_1", "name": "Benoit Georges", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j grollier_1", "name": "Julie Grollier", "publication_history": null, "h_index": null, "num_papers": null...
null
10307155
0907.4031
2009-07-23
Cognitive MAC Protocols for General Primary Network Models
We consider the design of cognitive Medium Access Control (MAC) protocols enabling a secondary (unlicensed) transmitter-receiver pair to communicate over the idle periods of a set of primary (licensed) channels. More specifically, we propose cognitive MAC protocols optimized for both slotted and un-slotted primary netw...
[ "cs.NI", "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "16725895", "num_citations": null }, { "corpus_id": "261902", "num_citations": null } ]
[ { "author_id": "o mehanna_1", "name": "Omar Mehanna", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a sultan_1", "name": "Ahmed Sultan", "publication_history": null, "h_index": null, "num_papers": null, ...
null
2948079
0907.4047
2009-07-23
A Global Treatment Of VMD Physics Up To The $\phi$: I. $e^+e^-$ Annihilations, Anomalies And Vector Meson Partial Widths
The HLS Model, equipped with a mechanism providing the breaking of U(3)/SU(3) symmetry and an isospin symmetry breaking leading naturally to vector meson mixing, has been recently shown to successfully account for $e^+ e^- \ra \pi^+\pi^-$ cross section and for the dipion spectrum in $\tau$ decay. The present study show...
[ "hep-ph", "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10450340
0907.4095
2009-07-23
Transport properties of the quark-gluon plasma from lattice QCD
I review the progress made in extracting transport properties of the quark-gluon plasma from lattice QCD simulations. The information on shear and bulk viscosity, the "low-energy constants" of hydrodynamics, is encoded in the retarded correlators of Tmunu, the energy-momentum tensor. Euclidean correlators, computable o...
[ "hep-lat" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17859085
0907.4076
2009-07-23
NLO single-top production matched with shower in POWHEG: s- and t-channel contributions
We present a next-to-leading order calculation of single-top production 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.
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12508470
0907.4006
2009-07-23
Arithmetic Circuits and the Hadamard Product of Polynomials
Motivated by the Hadamard product of matrices we define the Hadamard product of multivariate polynomials and study its arithmetic circuit and branching program complexity. We also give applications and connections to polynomial identity testing. Our main results are the following. 1. We show that noncommutative polynom...
[ "cs.CC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "v arvind_2", "name": "Vikraman Arvind", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p joglekar_1", "name": "Pushkar [\"S.\"] Joglekar", "publication_history": null, "h_index": null, "num_pa...
null
2852810
0907.3942
2009-07-23
A Fast Algorithm for Computing Geodesic Distances in Tree Space
Comparing and computing distances between phylogenetic trees are important biological problems, especially for models where edge lengths play an important role. The geodesic distance measure between two phylogenetic trees with edge lengths is the length of the shortest path between them in the continuous tree space int...
[ "q-bio.PE", "cs.CG", "cs.DM", "math.MG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15943491
0907.4010
2009-07-23
Simulation of truncated normal variables
We provide in this paper simulation algorithms for one-sided and two-sided truncated normal distributions. These algorithms are then used to simulate multivariate normal variables with restricted parameter space for any covariance structure.
[ "stat.CO", "stat.ME" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7202255
0907.3945
2009-07-23
Explosive Disintegration of a Massive Young Stellar System in Orion
Young massive stars in the center of crowded star clusters are expected to undergo close dynamical encounters that could lead to energetic, explosive events. However, there has so far never been clear observational evidence of such a remarkable phenomenon. We here report new interferometric observations made with the S...
[ "astro-ph.GA", "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null