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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118501180 | 0911.2289 | 2009-11-12 | Critical noncolorings of the 600-cell proving the Bell-Kochen-Specker theorem | Aravind and Lee-Elkin (1997) gave a proof of the Bell-Kochen-Specker theorem by showing that it is impossible to color the 60 directions from the center of a 600-cell to its vertices in a certain way. This paper refines that result by showing that the 60 directions contain many subsets of 36 and 30 directions that cann... | [
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118686019 | 0911.2493 | 2009-11-12 | Bayesian power-spectrum inference for Large Scale Structure data | We describe an exact, flexible, and computationally efficient algorithm for a joint estimation of the large-scale structure and its power-spectrum, building on a Gibbs sampling framework and present its implementation ARES (Algorithm for REconstruction and Sampling). ARES is designed to reconstruct the 3D power-spectru... | [
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"name": "Francisco-Shu Kitaura",
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119284278 | 0911.2403 | 2009-11-12 | Destabilizing Taylor-Couette flow with suction | We consider the effect of radial fluid injection and suction on Taylor-Couette flow. Injection at the outer cylinder and suction at the inner cylinder generally results in a linearly unstable steady spiralling flow, even for cylindrical shears that are linearly stable in the absence of a radial flux. We study nonlinear... | [
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44804582 | 0911.2699 | 2009-11-13 | An Unusually Fast-Evolving Supernova | Analyses of supernovae (SNe) have revealed two main types of progenitors: exploding white dwarfs and collapsing massive stars. We present SN2002bj, which stands out as different from any SN reported to date. Its light curve rises and declines very rapidly, yet reaches a peak intrinsic brightness greater than -18 mag. A... | [
"astro-ph.SR",
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119288560 | 0911.2712 | 2009-11-13 | Chromospheric Variability in SDSS M Dwarfs. II. Short-Timescale H-alpha Variability | [Abridged] We present the first comprehensive study of short-timescale chromospheric H-alpha variability in M dwarfs using the individual 15 min spectroscopic exposures for 52,392 objects from the Sloan Digital Sky Survey. Our sample contains about 10^3-10^4 objects per spectral type bin in the range M0-M9, with a tota... | [
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"name": "Edo Berger",
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33376276 | 0911.2666 | 2009-11-13 | Three detailed fluctuation theorems | The total entropy production of a trajectory can be split into an adiabatic and a non-adiabatic contribution, deriving respectively from the breaking of detailed balance via nonequilibrium boundary conditions or by external driving. We show that each of them, the total, the adiabatic and the non-adiabatic trajectory en... | [
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17220510 | 0911.2551 | 2009-11-13 | Minimax Robust Quickest Change Detection | The popular criteria of optimality for quickest change detection procedures are the Lorden criterion, the Shiryaev-Roberts-Pollak criterion, and the Bayesian criterion. In this paper a robust version of these quickest change detection problems is considered when the pre-change and post-change distributions are not know... | [
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"name": "Venugopal [\"V.\"] Veeravalli",
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1725778 | 0911.2564 | 2009-11-13 | Distributed Coalition Formation Games for Secure Wireless Transmission | Cooperation among wireless nodes has been recently proposed for improving the physical layer (PHY) security of wireless transmission in the presence of multiple eavesdroppers. While existing PHY security literature answered the question ``what are the link-level secrecy rate gains from cooperation?'', this paper attemp... | [
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"name": "Zhu Han",
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119225610 | 0911.2689 | 2009-11-13 | Spectro-Perfectionism: An Algorithmic Framework for Photon Noise-Limited Extraction of Optical Fiber Spectroscopy | We describe a new algorithm for the "perfect" extraction of one-dimensional spectra from two-dimensional (2D) digital images of optical fiber spectrographs, based on accurate 2D forward modeling of the raw pixel data. The algorithm is correct for arbitrarily complicated 2D point-spread functions (PSFs), as compared to ... | [
"astro-ph.IM",
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36003785 | 0911.2719 | 2009-11-13 | "Betweenness Centrality" as an Indicator of the "Interdisciplinarity" of Scientific Journals | In addition to science citation indicators of journals like impact and immediacy, social network analysis provides a set of centrality measures like degree, betweenness, and closeness centrality. These measures are first analyzed for the entire set of 7,379 journals included in the Journal Citation Reports of the Scien... | [
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585012 | 0911.2567 | 2009-11-13 | Tile Packing Tomography is NP-hard | Discrete tomography deals with reconstructing finite spatial objects from lower dimensional projections and has applications for example in timetable design. In this paper we consider the problem of reconstructing a tile packing from its row and column projections. It consists of disjoint copies of a fixed tile, all co... | [
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"name": "Christoph Dürr",
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... | null |
119218122 | 0911.2539 | 2009-11-13 | Vectorization of quantum operations and its use | We give a detailed exposition of the "vectorized" notation for dealing with quantum operations. This notation is used to highlight the relationships between representations of completely-positive dynamics. Vectorization considerably simplifies the analysis of different methods of quantum process tomography, and enables... | [
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"author_id": "d terno_1",
"name": "Daniel [\"R.\"] Terno",
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40937580 | 0911.2752 | 2009-11-14 | On a conjecture of Vorst | We prove the following result. Let k be an infinite perfect field of positive characteristic and assume that strong resolution of singularities holds over k. Let R be a localization of a commutative d-dimensional k-algebra of finite type and suppose that R is K_{d+1}-regular. Then R is a regular ring. | [
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15676902 | 0911.2785 | 2009-11-14 | NP Datalog: a Logic Language for Expressing NP Search and Optimization Problems | This paper presents a logic language for expressing NP search and optimization problems. Specifically, first a language obtained by extending (positive) Datalog with intuitive and efficient constructs (namely, stratified negation, constraints and exclusive disjunction) is introduced. Next, a further restricted language... | [
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119203687 | 0911.2776 | 2009-11-14 | Very High Gas Fractions and Extended Gas Reservoirs in z=1.5 Disk Galaxies | We present evidence for very high gas fractions and extended molecular gas reservoirs in normal, near-infrared selected (BzK) galaxies at z~1.5, based on multi-configuration CO[2-1] observations obtained at the IRAM PdBI. Six of the six galaxies observed were securely detected. High resolution observations resolve the ... | [
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118467387 | 0911.2755 | 2009-11-14 | The low-mass Initial Mass Function in the 30 Doradus starburst cluster | We present deep Hubble Space Telescope (HST) NICMOS 2 F160W band observations of the central 56*57" (14pc*14.25pc) region around R136 in the starburst cluster 30 Dor (NGC 2070) located in the Large Magellanic Cloud. Our aim is to derive the stellar Initial Mass Function (IMF) down to ~1 Msun in order to test whether th... | [
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14442250 | 0911.2784 | 2009-11-14 | On Bregman Distances and Divergences of Probability Measures | The paper introduces scaled Bregman distances of probability distributions which admit non-uniform contributions of observed events. They are introduced in a general form covering not only the distances of discrete and continuous stochastic observations, but also the distances of random processes and signals. It is sho... | [
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2613469 | 0911.2904 | 2009-11-15 | Sequential anomaly detection in the presence of noise and limited feedback | This paper describes a methodology for detecting anomalies from sequentially observed and potentially noisy data. The proposed approach consists of two main elements: (1) {\em filtering}, or assigning a belief or likelihood to each successive measurement based upon our ability to predict it from previous noisy observat... | [
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"name": "Rebecca [\"M.\"] Willett",
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12518320 | 0911.2888 | 2009-11-15 | A Hierarchical Bayesian Model for Frame Representation | In many signal processing problems, it may be fruitful to represent the signal under study in a frame. If a probabilistic approach is adopted, it becomes then necessary to estimate the hyper-parameters characterizing the probability distribution of the frame coefficients. This problem is difficult since in general the ... | [
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"author_id": "j pesquet_1",
"name": "Jean-Christophe Pesquet",
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"num_papers":... | null |
50680757 | 0911.2919 | 2009-11-16 | Kullback-Leibler aggregation and misspecified generalized linear models | In a regression setup with deterministic design, we study the pure aggregation problem and introduce a natural extension from the Gaussian distribution to distributions in the exponential family. While this extension bears strong connections with generalized linear models, it does not require identifiability of the par... | [
"stat.ML",
"math.ST",
"stat.TH"
] | null | [
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55067937 | 0911.2936 | 2009-11-16 | Exoplanet Characterization and the Search for Life | Over 300 extrasolar planets (exoplanets) have been detected orbiting nearby stars. We now hope to conduct a census of all planets around nearby stars and to characterize their atmospheres and surfaces with spectroscopy. Rocky planets within their star's habitable zones have the highest priority, as these have the poten... | [
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] | null | [
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{
"author_id": "j kasting_1",
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"author_id": "w traub_1",
"name": "Wesley [\"A.\"] Traub",
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118474593 | 0911.2985 | 2009-11-16 | A posteriori inclusion of parton density functions in NLO QCD final-state calculations at hadron colliders: The APPLGRID Project | A method to facilitate the consistent inclusion of cross-section measurements based on complex final-states from HERA, TEVATRON and the LHC in proton parton density function (PDF) fits has been developed. This can be used to increase the sensitivity of LHC data to deviations from Standard Model predictions. The method ... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
88512004 | 0911.3083 | 2009-11-16 | Bootstrap for the Sample Mean and for U-Statistics of Mixing and Near Epoch Dependent Processes | The validity of various bootstrapping methods has been proved for the sample mean of strongly mixing data. But in many applications, there appear nonlinear statistics of processes that are not strongly mixing. We investigate the nonoverlapping block bootstrap sequences which are near epoch dependent on strong mixing or... | [
"math.ST",
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] | null | [
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] | null | null | null |
119225433 | 0911.3061 | 2009-11-16 | On Higher Derivatives in 3D Gravity and Higher Spin Gauge Theories | The general second-order massive field equations for arbitrary positive integer spin in three spacetime dimensions, and their "self-dual" limit to first-order equations, are shown to be equivalent to gauge-invariant higher-derivative field equations. We recover most known equivalences for spins 1 and 2, and find some n... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
59421258 | 0911.2780 | 2009-11-16 | Scale dependence of local f_NL | We consider possible scale-dependence of the non-linearity parameter f_NL in local and quasi-local models of non-Gaussian primordial density perturbations. In the simplest model where the primordial perturbations are a quadratic local function of a single Gaussian field then f_NL is scale-independent by construction. H... | [
"astro-ph.CO",
"hep-ph",
"hep-th"
] | null | [
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12245319 | 0911.2974 | 2009-11-16 | A Dynamic Near-Optimal Algorithm for Online Linear Programming | A natural optimization model that formulates many online resource allocation and revenue management problems is the online linear program (LP) in which the constraint matrix is revealed column by column along with the corresponding objective coefficient. In such a model, a decision variable has to be set each time a co... | [
"cs.DS",
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] | null | [
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10720086 | 0911.3150 | 2009-11-16 | Unveiling the Origin of GRB 090709A: Lack of Periodicity in a Reddened Cosmological Long-Duration Gamma-Ray Burst | We present broadband (gamma-ray, X-ray, near-infrared, optical, and radio) observations of the gamma-ray burst (GRB) 090709A and its afterglow in an effort to ascertain the origin of this high-energy transient. Previous analyses suggested that GRB 090709A exhibited quasi-periodic oscillations with a period of 8.06 s, a... | [
"astro-ph.HE"
] | null | [
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] | null | null | null |
40468634 | 0911.3010 | 2009-11-16 | Eigenvectors of some large sample covariance matrix ensembles | We consider sample covariance matrices $S_N=\frac{1}{p}\Sigma_N^{1/2}X_NX_N^* \Sigma_N^{1/2}$ where $X_N$ is a $N \times p$ real or complex matrix with i.i.d. entries with finite $12^{\rm th}$ moment and $\Sigma_N$ is a $N \times N$ positive definite matrix. In addition we assume that the spectral measure of $\Sigma_N$... | [
"math.PR",
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"stat.TH"
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53550866 | 0911.3143 | 2009-11-16 | Epsilon Indi Ba, Bb: a detailed study of the nearest known brown dwarfs | The discovery of epsilon Indi Ba, Bb, a binary brown dwarf system very close to the Sun, makes possible a concerted campaign to characterise the physical parameters of two T dwarfs. Recent observations suggest substellar atmospheric and evolutionary models may be inconsistent with observations, but there have been few ... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118516630 | 0911.3033 | 2009-11-16 | Critical velocity for the vortex core reversal in perpendicular bias magnetic field | For a circular magnetic nanodot in a vortex ground state we study how the critical velocity $v_c$ of the vortex core reversal depends on the magnitude $H$ of a bias magnetic field applied perpendicularly to the dot plane. We find that, similarly to the case $H$ = 0, the critical velocity does not depend on the size of ... | [
"cond-mat.mtrl-sci"
] | null | [
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{
"author_id": "a khvalkovskiy_1",
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{
"author_id": "a slavin_1",
"name": "Andrei [\"N.\"] Slavin",
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119182979 | 0911.2933 | 2009-11-16 | Genuine CP-odd Observables at the LHC | We discuss how to construct genuine CP-odd observables at the LHC. We classify the observables according to the even and odd properties under the naive T-transformation (\hat{T}). There are two classes of observables of our interests: CP-odd and \hat{T}-even; CP-odd and \hat{T}-odd. We expect them to have broad applica... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
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16419957 | 0911.3438 | 2009-11-17 | First-order transitions and the performance of quantum algorithms in random optimization problems | We present a study of the phase diagram of a random optimization problem in presence of quantum fluctuations. Our main result is the characterization of the nature of the phase transition, which we find to be a first-order quantum phase transition. We provide evidence that the gap vanishes exponentially with the system... | [
"cond-mat.dis-nn",
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"author_id": "t jörg_1",
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"author_id": "f krzakala_1",
"name": "Florent Krzakala",
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... | null |
118859147 | 0911.3332 | 2009-11-17 | Quasar Outflow Contribution to AGN Feedback: Observations of QSO SDSS J0838+2955 | We present a detailed analysis of the Astrophysical Research Consortium 3.5 m telescope spectrum of QSO SDSS J0838+2955. The object shows three broad absorption line (BAL) systems at 22,000, 13,000, and 4900 km s^-1 blueshifted from the systemic redshift of z=2.043. Of particular interest is the lowest velocity system ... | [
"astro-ph.CO",
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] | null | null | null |
18384239 | 0911.3202 | 2009-11-17 | Combining dynamical decoupling with fault-tolerant quantum computation | We study how dynamical decoupling (DD) pulse sequences can improve the reliability of quantum computers. We prove upper bounds on the accuracy of DD-protected quantum gates and derive sufficient conditions for DD-protected gates to outperform unprotected gates. Under suitable conditions, fault-tolerant quantum circuits... | [
"quant-ph",
"cond-mat.mes-hall"
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{
"author_id": "h ng_2",
"name": "Hui [\"Khoon\"] Ng",
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"author_id": "d lidar_1",
"name": "Daniel [\"A.\"] Lidar",
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7461242 | 0911.3291 | 2009-11-17 | Recognizing well-parenthesized expressions in the streaming model | Motivated by a concrete problem and with the goal of understanding the sense in which the complexity of streaming algorithms is related to the complexity of formal languages, we investigate the problem Dyck(s) of checking matching parentheses, with $s$ different types of parenthesis. We present a one-pass randomized st... | [
"cs.DS",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18928397 | 0911.3456 | 2009-11-17 | PyCUDA and PyOpenCL: A Scripting-Based Approach to GPU Run-Time Code Generation | High-performance computing has recently seen a surge of interest in heterogeneous systems, with an emphasis on modern Graphics Processing Units (GPUs). These devices offer tremendous potential for performance and efficiency in important large-scale applications of computational science. However, exploiting this potenti... | [
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{
"author_id": "a klöckner_1",
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{
"author_id": "n pinto_3",
"name": "Nicolas Pinto",
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44191405 | 0911.3391 | 2009-11-17 | The distance to the Andromeda Galaxy from eclipsing binaries | The cosmic distance scale largely depends on distance determinations to Local Group galaxies. In this sense, the Andromeda Galaxy (M31) is a key rung to better constrain the cosmic distance ladder. A project was started in 1999 to firmly establish a direct and accurate distance to M31 using eclipsing binaries (EBs). Af... | [
"astro-ph.CO",
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3265251 | 0911.3389 | 2009-11-17 | Bounded Independence Fools Degree-2 Threshold Functions | Let x be a random vector coming from any k-wise independent distribution over {-1,1}^n. For an n-variate degree-2 polynomial p, we prove that E[sgn(p(x))] is determined up to an additive epsilon for k = poly(1/epsilon). This answers an open question of Diakonikolas et al. (FOCS 2009). Using standard constructions of k-... | [
"cs.CC"
] | null | [
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8885674 | 0911.3213 | 2009-11-17 | Optimum estimation via gradients of partition functions and information measures: a statistical-mechanical perspective | In continuation to a recent work on the statistical--mechanical analysis of minimum mean square error (MMSE) estimation in Gaussian noise via its relation to the mutual information (the I-MMSE relation), here we propose a simple and more direct relationship between optimum estimation and certain information measures (e... | [
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4425758 | 0911.3185 | 2009-11-17 | Anisotropy of Earth's D" layer and stacking faults in the MgSiO3 post-perovskite phase | The post-perovskite phase of (Mg,Fe)SiO3 is believed to be the main mineral phase of the Earth's lowermost mantle (the D" layer). Its properties explain numerous geophysical observations associated with this layer - for example, the D'' discontinuity, its topography and seismic anisotropy within the layer. Here we use ... | [
"cond-mat.mtrl-sci"
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118642706 | 0911.3454 | 2009-11-18 | An alternative approach to determining average distance in a class of scale-free modular networks | Various real-life networks of current interest are simultaneously scale-free and modular. Here we study analytically the average distance in a class of deterministically growing scale-free modular networks. By virtue of the recursive relations derived from the self-similar structure of the networks, we compute rigorous... | [
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2989975 | 0911.3633 | 2009-11-18 | A Geometric Approach to Sample Compression | The Sample Compression Conjecture of Littlestone & Warmuth has remained unsolved for over two decades. This paper presents a systematic geometric investigation of the compression of finite maximum concept classes. Simple arrangements of hyperplanes in Hyperbolic space, and Piecewise-Linear hyperplane arrangements, are ... | [
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"stat.ML"
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16673488 | 0911.3492 | 2009-11-18 | Towards a Dichotomy for the Possible Winner Problem in Elections Based on Scoring Rules | To make a joint decision, agents (or voters) are often required to provide their preferences as linear orders. To determine a winner, the given linear orders can be aggregated according to a voting protocol. However, in realistic settings, the voters may often only provide partial orders. This directly leads to the Pos... | [
"cs.CC"
] | null | [
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] | null | null | null |
115158394 | 0911.3553 | 2009-11-18 | The Fine Structure of SU(2) Intertwiners from U(N) Representations | In this work we study the Hilbert space space of N-valent SU(2) intertwiners with fixed total spin, which can be identified, at the classical level, with a space of convex polyhedra with N face and fixed total boundary area. We show that this Hilbert space provides, quite remarkably, an irreducible representation of th... | [
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"math.MP"
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119262858 | 0911.3426 | 2009-11-18 | Target selection for the SUNS and DEBRIS surveys for debris discs in the solar neighbourhood | Debris discs - analogous to the Asteroid and Kuiper-Edgeworth belts in the Solar system - have so far mostly been identified and studied in thermal emission shortward of 100 um. The Herschel space observatory and the SCUBA-2 camera on the James Clerk Maxwell Telescope will allow efficient photometric surveying at 70 to... | [
"astro-ph.SR",
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] | null | [
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] | null | null | null |
11921764 | 0911.3514 | 2009-11-18 | Sampling and reconstructing signals from a union of linear subspaces | In this note we study the problem of sampling and reconstructing signals which are assumed to lie on or close to one of several subspaces of a Hilbert space. Importantly, we here consider a very general setting in which we allow infinitely many subspaces in infinite dimensional Hilbert spaces. This general approach all... | [
"cs.IT",
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] | null | [
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] | null | null | null |
115173775 | 0911.3589 | 2009-11-18 | Deterministic Numerical Schemes for the Boltzmann Equation | This article describes methods for the deterministic simulation of the collisional Boltzmann equation. It presumes that the transport and collision parts of the equation are to be simulated separately in the time domain. Time stepping schemes to achieve the splitting as well as numerical methods for each part of the op... | [
"math.NA"
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1941839 | 0911.3600 | 2009-11-18 | "Almost automatic" and semantic integration of XML Schemas at various "severity" levels | This paper presents a novel approach for the integration of a set of XML Schemas. The proposed approach is specialized for XML, is almost automatic, semantic and "light". As a further, original, peculiarity, it is parametric w.r.t. a "severity" level against which the integration task is performed. The paper describes ... | [
"cs.DB"
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4320890 | 0911.3635 | 2009-11-18 | Quantum Metropolis Sampling | The original motivation to build a quantum computer came from Feynman who envisaged a machine capable of simulating generic quantum mechanical systems, a task that is believed to be intractable for classical computers. Such a machine would have a wide range of applications in the simulation of many-body quantum physics... | [
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"hep-lat"
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119281524 | 0911.3652 | 2009-11-18 | Characterizing Magnetohydrodynamic Turbulence in the Small Magellanic Cloud | We investigate the nature and spatial variations of turbulence in the Small Magellanic Cloud (SMC) by applying several statistical methods on the neutral hydrogen (HI) column density image of the SMC and a database of isothermal numerical simulations. By using the 3rd and 4th statistical moments we derive the spatial d... | [
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118592250 | 0911.3572 | 2009-11-18 | Epitaxial growth of Fe3O4 thin films on ZnO and MgO substrates | Magnetite thin fims have been grown epitaxially on ZnO and MgO substrates using molecular beam epitaxy. The film quality was found to be strongly dependent on the oxygen partial pressure during growth. Structural, electronic, and magnetic properties were analyzed utilizing Low Energy Electron Diffraction (LEED), HArd X... | [
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67828771 | 0911.3485 | 2009-11-18 | Radio-Loud Narrow-Line Seyfert 1 as a New Class of Gamma-Ray AGN | We report the discovery with Fermi/LAT of gamma-ray emission from three radio-loud narrow-line Seyfert 1 galaxies: PKS 1502+036 (z=0.409), 1H 0323+342 (z=0.061) and PKS 2004-447 (z=0.24). In addition to PMN J0948+0022 (z=0.585), the first source of this type to be detected in gamma rays, they may form an emerging new c... | [
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118570342 | 0911.3586 | 2009-11-18 | Holography of Charged Dilaton Black Holes | We study charged dilaton black branes in $AdS_4$. Our system involves a dilaton $\phi$ coupled to a Maxwell field $F_{\mu\nu}$ with dilaton-dependent gauge coupling, ${1\over g^2} = f^2(\phi)$. First, we find the solutions for extremal and near extremal branes through a combination of analytical and numerical technique... | [
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56363408 | 0911.3599 | 2009-11-18 | Higher direct images of the structure sheaf in positive characteristic | We prove vanishing of the higher direct images of the structure (and the canonical) sheaf for a proper birational morphism with source a smooth variety and target the quotient of a smooth variety by a finite group of order prime to the characteristic of the ground field. We also show that for smooth projective varietie... | [
"math.AG"
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] | null | null | null |
9161468 | 0911.3827 | 2009-11-19 | PCA consistency in high dimension, low sample size context | Principal Component Analysis (PCA) is an important tool of dimension reduction especially when the dimension (or the number of variables) is very high. Asymptotic studies where the sample size is fixed, and the dimension grows [i.e., High Dimension, Low Sample Size (HDLSS)] are becoming increasingly relevant. We invest... | [
"math.ST",
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] | null | [
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] | null | null | null |
1450409 | 0911.3799 | 2009-11-19 | Capturing Polynomial Time on Interval Graphs | We prove a characterization of all polynomial-time computable queries on the class of interval graphs by sentences of fixed-point logic with counting. More precisely, it is shown that on the class of unordered interval graphs, any query is polynomial-time computable if and only if it is definable in fixed-point logic w... | [
"cs.LO"
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118140072 | 0911.3814 | 2009-11-19 | Quantum And Relativistic Protocols For Secure Multi-Party Computation | After a general introduction, the thesis is divided into four parts. In the first, we discuss the task of coin tossing, principally in order to highlight the effect different physical theories have on security in a straightforward manner, but, also, to introduce a new protocol for non-relativistic strong coin tossing. ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
41849207 | 0911.3720 | 2009-11-19 | A stochastic maximum principle via Malliavin calculus | This paper considers a controlled It\^o-L\'evy process where the information available to the controller is possibly less than the overall information. All the system coefficients and the objective performance functional are allowed to be random, possibly non-Markovian. Malliavin calculus is employed to derive a maximu... | [
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"name": "Xun [\"Yu\"] Zhou",
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31184976 | 0911.3796 | 2009-11-19 | Break detection in the covariance structure of multivariate time series models | In this paper, we introduce an asymptotic test procedure to assess the stability of volatilities and cross-volatilites of linear and nonlinear multivariate time series models. The test is very flexible as it can be applied, for example, to many of the multivariate GARCH models established in the literature, and also wo... | [
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{
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"name": "Siegfried Hormann",
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... | null |
2695607 | 0911.4055 | 2009-11-20 | A polynomial-time algorithm for optimizing over N-fold 4-block decomposable integer programs | In this paper we generalize N-fold integer programs and two-stage integer programs with N scenarios to N-fold 4-block decomposable integer programs. We show that for fixed blocks but variable N, these integer programs are polynomial-time solvable for any linear objective. Moreover, we present a polynomial-time computab... | [
"math.OC",
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] | null | [
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] | null | null | null |
2498421 | 0911.3944 | 2009-11-20 | Likelihood-based semi-supervised model selection with applications to speech processing | In conventional supervised pattern recognition tasks, model selection is typically accomplished by minimizing the classification error rate on a set of so-called development data, subject to ground-truth labeling by human experts or some other means. In the context of speech processing systems and other large-scale pra... | [
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{
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"name": "Sanjeev Khudanpur",
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18332540 | 0911.4059 | 2009-11-20 | Correlations between vibrational entropy and dynamics in super-cooled liquids | A relation between vibrational entropy and particles mean square displacement is derived in super-cooled liquids, assuming that the main effect of temperature changes is to rescale the vibrational spectrum. Deviations from this relation, in particular due to the presence of a Boson Peak whose shape and frequency change... | [
"cond-mat.stat-mech",
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{
"author_id": "m wyart_1",
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] | null |
6397445 | 0911.3950 | 2009-11-20 | Randomized Interior Point methods for Sampling and Optimization | We present a Markov chain (Dikin walk) for sampling from a convex body equipped with a self-concordant barrier, whose mixing time from a "central point" is strongly polynomial in the description of the convex set. The mixing time of this chain is invariant under affine transformations of the convex set, thus eliminatin... | [
"cs.DS",
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] | null | [
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] | null | null | null |
59038897 | 0911.4126 | 2009-11-20 | Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies | We consider SUSY-like missing energy events at hadron colliders and critically examine the common assumption that the missing energy is the result of two identical missing particles. In order to experimentally test this hypothesis, we generalize the subsystem MT2 variable to the case of asymmetric event topologies, whe... | [
"hep-ph",
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{
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... | [
{
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"... | null |
6721449 | 0911.4167 | 2009-11-21 | Wyner-Ziv Coding over Broadcast Channels: Digital Schemes | This paper addresses lossy transmission of a common source over a broadcast channel when there is correlated side information at the receivers, with emphasis on the quadratic Gaussian and binary Hamming cases. A digital scheme that combines ideas from the lossless version of the problem, i.e., Slepian-Wolf coding over ... | [
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{
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"name": "Ertem Tuncel",
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"... | null |
118736858 | 0911.4195 | 2009-11-21 | Are Newly Discovered HI High Velocity Clouds Minihalos in the Local Group? | A set of HI sources extracted from the north Galactic polar region by the ongoing ALFALFA survey has properties that are consistent with the interpretation that they are associated with isolated minihalos in the outskirts of the Local Group (LG). Unlike objects detected by previous surveys, such as the Compact High Vel... | [
"astro-ph.CO",
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] | null | [
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] | null | null | null |
15627552 | 0911.4151 | 2009-11-21 | Nonparametric estimation of multivariate convex-transformed densities | We study estimation of multivariate densities $p$ of the form $p(x)=h(g(x))$ for $x\in \mathbb {R}^d$ and for a fixed monotone function $h$ and an unknown convex function $g$. The canonical example is $h(y)=e^{-y}$ for $y\in \mathbb {R}$; in this case, the resulting class of densities [\mathcal {P}(e^{-y})={p=\exp(-g):... | [
"math.ST",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
41952170 | 0911.4246 | 2009-11-22 | The WiggleZ Dark Energy Survey: Survey Design and First Data Release | The WiggleZ Dark Energy Survey is a survey of 240,000 emission line galaxies in the distant universe, measured with the AAOmega spectrograph on the 3.9-m Anglo-Australian Telescope (AAT). The target galaxies are selected using ultraviolet photometry from the GALEX satellite, with a flux limit of NUV<22.8 mag. The redsh... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
39717460 | 0911.4270 | 2009-11-22 | Entanglement and non-Markovianity of quantum evolutions | We address the problem of quantifying the non-Markovian character of quantum time-evolutions of general systems in contact with an environment. We introduce two different measures of non-Markovianity that exploit the specific traits of quantum correlations and are suitable for opposite experimental contexts. When compl... | [
"quant-ph",
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"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6996362 | 0911.4222 | 2009-11-22 | Message Passing Algorithms for Compressed Sensing: II. Analysis and Validation | In a recent paper, the authors proposed a new class of low-complexity iterative thresholding algorithms for reconstructing sparse signals from a small set of linear measurements \cite{DMM}. The new algorithms are broadly referred to as AMP, for approximate message passing. This is the second of two conference papers de... | [
"cs.IT",
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] | null | [
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{
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{
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1845400 | 0911.4219 | 2009-11-22 | Message Passing Algorithms for Compressed Sensing: I. Motivation and Construction | In a recent paper, the authors proposed a new class of low-complexity iterative thresholding algorithms for reconstructing sparse signals from a small set of linear measurements \cite{DMM}. The new algorithms are broadly referred to as AMP, for approximate message passing. This is the first of two conference papers des... | [
"cs.IT",
"math.IT"
] | null | [
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{
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{
"author_id": "a maleki_1",
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17959457 | 0911.4366 | 2009-11-23 | Hitting Diamonds and Growing Cacti | We consider the following NP-hard problem: in a weighted graph, find a minimum cost set of vertices whose removal leaves a graph in which no two cycles share an edge. We obtain a constant-factor approximation algorithm, based on the primal-dual method. Moreover, we show that the integrality gap of the natural LP relaxa... | [
"cs.DS",
"cs.DM"
] | null | [
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] | null | null | null |
11072 | 0911.4544 | 2009-11-23 | Improved Algorithm for Degree Bounded Survivable Network Design Problem | We consider the Degree-Bounded Survivable Network Design Problem: the objective is to find a minimum cost subgraph satisfying the given connectivity requirements as well as the degree bounds on the vertices. If we denote the upper bound on the degree of a vertex v by b(v), then we present an algorithm that finds a solu... | [
"cs.DS"
] | null | [
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] | [] | [
{
"author_id": "a louis_1",
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{
"author_id": "n vishnoi_1",
"name": "Nisheeth [\"K.\"] Vishnoi",
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115160997 | 0911.4373 | 2009-11-23 | Stability under integration of sums of products of real globally subanalytic functions and their logarithms | We study Lebesgue integration of sums of products of globally subanalytic functions and their logarithms, called constructible functions. Our first theorem states that the class of constructible functions is stable under integration. The second theorem treats integrability conditions in Fubini-type settings, and the th... | [
"math.AG",
"math.LO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118581183 | 0911.4350 | 2009-11-23 | An Experimental Study of Pedestrian Congestions: Influence of Bottleneck Width and Length | The placement and dimensioning of exit routes is informed by experimental data and theoretical models. The experimental data is still to a large extent uncertain and contradictory. In this contribution an attempt is made to understand and reconcile these differences with our own experiments. | [
"physics.soc-ph"
] | null | [
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] | [] | [
{
"author_id": "j liddle_1",
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{
"author_id": "a seyfried_1",
"name": "Armin Seyfried",
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... | null |
13512364 | 0911.4468 | 2009-11-23 | Spatial pattern formation and polarization dynamics of a nonequilibrium spinor polariton condensate | Quasiparticles in semiconductors -- such as microcavity polaritons -- can form condensates in which the steady-state density profile is set by the balance of pumping and decay. By taking account of the polarization degree of freedom for a polariton condensate, and considering the effects of an applied magnetic field, w... | [
"cond-mat.quant-gas"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m borgh_1",
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{
"author_id": "j keeling_1",
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118692061 | 0911.4324 | 2009-11-23 | Quantum corrections to N=2 Chern-Simons theories with flavor and their AdS4 duals | We add fundamental flavors to N=2 Chern-Simons-matter theories living on M2 branes probing a Calabi-Yau four-fold singularity. This is dual, in the 't Hooft limit described by IIA string theory, to the introduction of supersymmetric D6 branes wrapping AdS4 and a 3-cycle of the internal manifold. The resulting Chern-Sim... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15795684 | 0911.4337 | 2009-11-23 | Circuit Lower Bounds, Help Functions, and the Remote Point Problem | We investigate the power of Algebraic Branching Programs (ABPs) augmented with help polynomials, and constant-depth Boolean circuits augmented with help functions. We relate the problem of proving explicit lower bounds in both these models to the Remote Point Problem (introduced by Alon, Panigrahy, and Yekhanin (RANDOM... | [
"cs.CC"
] | null | [
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{
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{
"author_id": "s srinivasan_5",
"name": "Srikanth Srinivasan",
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"num_papers... | null |
119212150 | 0911.4319 | 2009-11-23 | GALEX Ultraviolet Imaging of Dwarf Galaxies and Star Formation | We present ultraviolet integrated and azimuthally-averaged surface photometric properties of a sample of 44 dIm, BCD, and Sm galaxies measured from archival NUV and FUV images obtained with GALEX. We compare the UV to Halpha and V-band properties and convert FUV, Halpha, and V-band luminosities into star formation rate... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
37046225 | 0911.4345 | 2009-11-23 | Turbulence in a 3D deflagration model for type Ia SNe: II. Intermittency and the deflagration-to-detonation transition probability | The delayed detonation model describes the observational properties of the majority of type Ia supernovae very well. Using numerical data from a three-dimensional deflagration model for type Ia supernovae, the intermittency of the turbulent velocity field and its implications on the probability of a deflagration-to-det... | [
"astro-ph.HE",
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] | null | [
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] | null | null | null |
38987183 | 0911.4625 | 2009-11-24 | Hamilton-Jacobi formulation for reach-avoid differential games | A new framework for formulating reachability problems with competing inputs, nonlinear dynamics and state constraints as optimal control problems is developed. Such reach-avoid problems arise in, among others, the study of safety problems in hybrid systems. Earlier approaches to reach-avoid computations are either rest... | [
"math.OC"
] | null | [
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{
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{
"author_id": "j lygeros_1",
"name": "John Lygeros",
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"num_papers": nul... | null |
119243048 | 0911.4661 | 2009-11-24 | Quantum dynamics of attractive versus repulsive bosonic Josephson junctions: Bose-Hubbard and full-Hamiltonian results | The quantum dynamics of one-dimensional bosonic Josephson junctions with attractive and repulsive interparticle interactions is studied using the Bose-Hubbard model and by numerically-exact computations of the full many-body Hamiltonian. A symmetry present in the Bose-Hubbard Hamiltonian dictates an equivalence between... | [
"cond-mat.quant-gas"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k sakmann_1",
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{
"author_id": "a streltsov_1",
"name": "Alexej [\"I.\"] Streltsov",
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"num_p... | null |
16894744 | 0911.4671 | 2009-11-24 | A Geometric Theory of Growth Mechanics | In this paper we formulate a geometric theory of the mechanics of growing solids. Bulk growth is modeled by a material manifold with an evolving metric. Time dependence of metric represents the evolution of the stress-free (natural) configuration of the body in response to changes in mass density and "shape". We show t... | [
"math.DG",
"math-ph",
"math.MP"
] | null | [
"target.key_reference"
] | null | null | null |
1896684 | 0911.4650 | 2009-11-24 | CanICA: Model-based extraction of reproducible group-level ICA patterns from fMRI time series | Spatial Independent Component Analysis (ICA) is an increasingly used data-driven method to analyze functional Magnetic Resonance Imaging (fMRI) data. To date, it has been used to extract meaningful patterns without prior information. However, ICA is not robust to mild data variation and remains a parameter-sensitive al... | [
"cs.CV",
"stat.AP"
] | null | [
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"target.author.publication_history.key_reference"
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{
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},
{
"author_id": "s sadaghiani_1",
"name": "Sepideh Sadaghiani",
"publication_history": null,
"h_index": null,
"num_paper... | null |
119116566 | 0911.4708 | 2009-11-24 | Thermodynamic Bubble Ansatz | Motivated by the computation of scattering amplitudes at strong coupling, we consider minimal area surfaces in AdS_5 which end on a null polygonal contour at the boundary. We map the classical problem of finding the surface into an SU(4) Hitchin system. The polygon with six edges is the first non-trivial example. For t... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15970882 | 0911.4727 | 2009-11-24 | Exchangeability and sets of desirable gambles | Sets of desirable gambles constitute a quite general type of uncertainty model with an interesting geometrical interpretation. We give a general discussion of such models and their rationality criteria. We study exchangeability assessments for them, and prove counterparts of de Finetti's finite and infinite representat... | [
"math.PR",
"cs.AI",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "g cooman_1",
"name": "Gert [\"de\"] Cooman",
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},
{
"author_id": "e quaeghebeur_1",
"name": "Erik Quaeghebeur",
"publication_history": null,
"h_index": null,
"num_pap... | null |
7733926 | 0911.4729 | 2009-11-24 | Hearing the clusters in a graph: A distributed algorithm | We propose a novel distributed algorithm to cluster graphs. The algorithm recovers the solution obtained from spectral clustering without the need for expensive eigenvalue/vector computations. We prove that, by propagating waves through the graph, a local fast Fourier transform yields the local component of every eigen... | [
"cs.DM",
"cs.DC",
"physics.comp-ph",
"physics.soc-ph"
] | null | [
"target.author.publication_history",
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] | [
{
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}
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{
"author_id": "t sahai_1",
"name": "Tuhin Sahai",
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},
{
"author_id": "a speranzon_1",
"name": "Alberto Speranzon",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
119209222 | 0911.4739 | 2009-11-24 | Testing Yukawa-unified SUSY during year 1 of LHC: the role of multiple b-jets, dileptons and missing E_T | We examine the prospects for testing SO(10) Yukawa-unified supersymmetric models during the first year of LHC running at \sqrt{s}= 7 TeV, assuming integrated luminosity values of 0.1 to 1 fb^-1. We consider two cases: the Higgs splitting (HS) and the D-term splitting (DR3) models. Each generically predicts light gluino... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [
{
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},
{
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] | [
{
"author_id": "h baer_1",
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},
{
"author_id": "s kraml_1",
"name": "Sabine Kraml",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
53510374 | 0911.4692 | 2009-11-24 | Large N duality beyond the genus expansion | We study non-perturbative aspects of the large N duality between Chern-Simons theory and topological strings, and we find a rich structure of large N phase transitions in the complex plane of the 't Hooft parameter. These transitions are due to large N instanton effects, and they can be regarded as a deformation of the... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10490707 | 0911.4924 | 2009-11-25 | Relativistic beaming and gamma-ray brightness of blazars | We investigate the dependence of gamma-ray brightness of blazars on intrinsic properties of their parsec-scale radio jets and the implication for relativistic beaming. By combining apparent jet speeds derived from high-resolution VLBA images from the MOJAVE program with millimetre-wavelength flux density monitoring dat... | [
"astro-ph.CO",
"astro-ph.HE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2028542 | 0911.4896 | 2009-11-25 | Diversity Order in ISI Channels with Single-Carrier Frequency-Domain Equalizers | This paper analyzes the diversity gain achieved by single-carrier frequency-domain equalizer (SC-FDE) in frequency selective channels, and uncovers the interplay between diversity gain $d$, channel memory length $\nu$, transmission block length $L$, and the spectral efficiency $R$. We specifically show that for the cla... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a tajer_1",
"name": "Ali Tajer",
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"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a nosratinia_1",
"name": "Aria Nosratinia",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
118623782 | 0911.4867 | 2009-11-25 | Holographic Superconductors with Ho\v{r}ava-Lifshitz Black Holes | We discuss the phase transition of planar black holes in Ho\v{r}ava-Lifshitz gravity by introducing a Maxwell field and a complex scalar field. We calculate the condensates of the charged operators in the dual CFTs when the mass square of the complex scalar filed is $m^2=-2/L^2$ and $m^2=0$, respectively. We compute th... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6270198 | 0911.4752 | 2009-11-25 | MIMO Radar Using Compressive Sampling | A MIMO radar system is proposed for obtaining angle and Doppler information on potential targets. Transmitters and receivers are nodes of a small scale wireless network and are assumed to be randomly scattered on a disk. The transmit nodes transmit uncorrelated waveforms. Each receive node applies compressive sampling ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
50092962 | 0911.4751 | 2009-11-25 | Two-Generator Free Kleinian Groups and Hyperbolic Displacements | The $\log 3$ Theorem, proved by Culler and Shalen, states that every point in the hyperbolic 3-space is moved a distance at least $\log 3$ by one of the non-commuting isometries $\xi$ or $\eta$ provided that $\xi$ and $\eta$ generate a torsion-free, discrete group which is not co-compact and contains no parabolic. This... | [
"math.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118834169 | 0911.4768 | 2009-11-25 | Scale Dependence of Halo Bispectrum from Non-Gaussian Initial Conditions in Cosmological N-body Simulations | We study the halo bispectrum from non-Gaussian initial conditions. Based on a set of large $N$-body simulations starting from initial density fields with local type non-Gaussianity, we find that the halo bispectrum exhibits a strong dependence on the shape and scale of Fourier space triangles near squeezed configuratio... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119091240 | 1006.2280 | 2009-11-25 | Newtonian and General Relativistic Models of Spherical Shells - II | A family of potential-density pairs that represent spherical shells with finite thickness is obtained from the superposition of spheres with finite radii. Other families of shells with infinite thickness with a central hole are obtained by inversion transformations of spheres and of the finite shells. We also present a... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118501929 | 0911.4960 | 2009-11-25 | Design and Construction of the BESIII Detector | This paper will discuss the design and construction of BESIII, which is designed to study physics in the tau-charm energy region utilizing the new high luminosity BEPCII double ring e+e- collider. The expected performance will be given based on Monte Carlo simulations and results of cosmic ray and beam tests. In BESIII... | [
"physics.ins-det",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2376523 | 0911.4963 | 2009-11-25 | Shortest Paths in Planar Graphs with Real Lengths in $O(n\log^2n/\log\log n)$ Time | Given an $n$-vertex planar directed graph with real edge lengths and with no negative cycles, we show how to compute single-source shortest path distances in the graph in $O(n\log^2n/\log\log n)$ time with O(n) space. This is an improvement of a recent time bound of $O(n\log^2n)$ by Klein et al. | [
"cs.DM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53667691 | 0911.4917 | 2009-11-25 | On the rate of approximation in finite-alphabet longest increasing subsequence problems | The rate of convergence of the distribution of the length of the longest increasing subsequence, toward the maximal eigenvalue of certain matrix ensembles, is investigated. For finite-alphabet uniform and nonuniform i.i.d. sources, a rate of $\log n/\sqrt{n}$ is obtained. The uniform binary case is further explored, an... | [
"math.PR",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "10768649",
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},
{
"corpus_id": "14829882",
"num_citations": null
},
{
"corpus_id": "3454764",
"num_citations": null
}
] | [
{
"author_id": "c houdr'e_0",
"name": "Christian Houdr'e",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "z talata_1",
"name": "Zsolt Talata",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
52803378 | 0911.4981 | 2009-11-25 | Efficient Fully-Compressed Sequence Representations | We present a data structure that stores a sequence $s[1..n]$ over alphabet $[1..\sigma]$ in $n\Ho(s) + o(n)(\Ho(s){+}1)$ bits, where $\Ho(s)$ is the zero-order entropy of $s$. This structure supports the queries \access, \rank\ and \select, which are fundamental building blocks for many other compressed data structures... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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