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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8777794 | 1101.0306 | 2010-12-31 | The Degrees of Freedom Regions of Two-User and Certain Three-User MIMO Broadcast Channels with Delayed CSIT | The degrees of freedom (DoF) region of the fast-fading MIMO (multiple-input multiple-output) Gaussian broadcast channel (BC) is studied when there is delayed channel state information at the transmitter (CSIT). In this setting, the channel matrices are assumed to vary independently across time and the transmitter is as... | [
"cs.IT",
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] | null | [
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] | null | null | null |
986085 | 1101.0272 | 2010-12-31 | Social Norms for Online Communities | Sustaining cooperation among self-interested agents is critical for the proliferation of emerging online social communities, such as online communities formed through social networking services. Providing incentives for cooperation in social communities is particularly challenging because of their unique features: a la... | [
"cs.SI",
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{
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"author_id": "j park_116",
"name": "Jaeok Park",
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118677335 | 1101.0298 | 2010-12-31 | Equilibrium and Stability of Polarization in Ultrathin Ferroelectric Films with Ionic Surface Compensation | Thermodynamic theory is developed for the ferroelectric phase transition of an ultrathin film in equilibrium with a chemical environment that supplies ionic species to compensate its surface. Equations of state and free energy expressions are developed based on Landau-Ginzburg-Devonshire theory, using electrochemical e... | [
"cond-mat.mtrl-sci"
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2411818 | 1101.0309 | 2010-12-31 | Concrete Sentence Spaces for Compositional Distributional Models of Meaning | Coecke, Sadrzadeh, and Clark (arXiv:1003.4394v1 [cs.CL]) developed a compositional model of meaning for distributional semantics, in which each word in a sentence has a meaning vector and the distributional meaning of the sentence is a function of the tensor products of the word vectors. Abstractly speaking, this funct... | [
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"cs.AI",
"cs.IR"
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"author_id": "m sadrzadeh_1",
"name": "Mehrnoosh Sadrzadeh",
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12153083 | 1101.0225 | 2010-12-31 | The Planck-ATCA Co-eval Observations (PACO) project: the bright sample | The Planck-ATCA Co-eval Observations (PACO) have provided flux density measurements of well defined samples of AT20G radio sources at frequencies below and overlapping with Planck frequency bands, almost simultaneously with Planck observations. We have observed with the Australia Telescope Compact Array (ATCA) a total ... | [
"astro-ph.CO"
] | null | [
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] | null | null | null |
1262532 | 1101.0362 | 2011-01-01 | An Adaptive Quantum-inspired Differential Evolution Algorithm for 0-1 Knapsack Problem | Differential evolution (DE) is a population based evolutionary algorithm widely used for solving multidimensional global optimization problems over continuous spaces. However, the design of its operators makes it unsuitable for many real-life constrained combinatorial optimization problems which operate on binary space... | [
"cs.NE"
] | null | [
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] | null | null | null |
14540438 | 1101.0327 | 2011-01-01 | On the Performance of Selection Cooperation with Imperfect Channel Estimation | In this paper, we investigate the performance of selection cooperation in the presence of imperfect channel estimation. In particular, we consider a cooperative scenario with multiple relays and amplify-and- forward protocol over frequency flat fading channels. In the selection scheme, only the "best" relay which maxim... | [
"cs.IT",
"math.IT"
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"name": "Sami [\"Hakam\"] Muhaidat",
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9557537 | 1101.0395 | 2011-01-02 | Improving the Performance of K-Means for Color Quantization | Color quantization is an important operation with many applications in graphics and image processing. Most quantization methods are essentially based on data clustering algorithms. However, despite its popularity as a general purpose clustering algorithm, k-means has not received much respect in the color quantization ... | [
"cs.GR"
] | null | [
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30208810 | 1101.0430 | 2011-01-02 | Finite Temperature Critical Behavior of Mutual Information | We study mutual information for Renyi entropy of arbitrary index n, in interacting quantum systems at finite-temperature critical points, using high-temperature expansion, quantum Monte Carlo simulations and scaling theory. We find that for n>1, the critical behavior is manifest at two temperatures T_c and n*T_c. For t... | [
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"author_id": "m hastings_1",
"name": "Matthew [\"B.\"] Hastings",
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... | null |
6843853 | 1101.0403 | 2011-01-02 | Impossibility of Succinct Quantum Proofs for Collision-Freeness | We show that any quantum algorithm to decide whether a function f:[n]->[n] is a permutation or far from a permutation must make Omega(n^{1/3}/w) queries to f, even if the algorithm is given a w-qubit quantum witness in support of f being a permutation. This implies that there exists an oracle A such that SZK^A is not c... | [
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2653878 | 1101.0387 | 2011-01-02 | MCMC Using Ensembles of States for Problems with Fast and Slow Variables such as Gaussian Process Regression | I introduce a Markov chain Monte Carlo (MCMC) scheme in which sampling from a distribution with density pi(x) is done using updates operating on an "ensemble" of states. The current state x is first stochastically mapped to an ensemble, x^{(1)},...,x^{(K)}. This ensemble is then updated using MCMC updates that leave in... | [
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17809435 | 1101.0457 | 2011-01-02 | Segmentation of Camera Captured Business Card Images for Mobile Devices | Due to huge deformation in the camera captured images, variety in nature of the business cards and the computational constraints of the mobile devices, design of an efficient Business Card Reader (BCR) is challenging to the researchers. Extraction of text regions and segmenting them into characters is one of such chall... | [
"cs.CV"
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{
"author_id": "a mollah_1",
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"author_id": "s basu_10",
"name": "Subhadip Basu",
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117066810 | 1101.0390 | 2011-01-02 | On hypothesis testing, trials factor, hypertests and the BumpHunter | A detailed presentation of hypothesis testing is given. The "look elsewhere" effect is illustrated, and a treatment of the trials factor is proposed with the introduction of hypothesis hypertests. An example of such a hypertest is presented, named BumpHunter, which is used in the recent ATLAS dijet resonance search, an... | [
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"hep-ex"
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117897965 | 1101.0488 | 2011-01-03 | Cold Nuclear Matter Effects on extrinsic J/psi production at sqrt{s_{NN}}=2.76 TeV at the LHC | We evaluate the Cold Nuclear Matter effects on J/psi production in pPb and PbPb collisions at the current LHC energy, taking into account the gluon shadowing and the nuclear absorption. We use the complete kinematics in the underlying 2 to 2 partonic process, namely $g+g \to \jpsi + g$ as expected from LO pQCD. The res... | [
"hep-ph"
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"author_id": "e ferreiro_1",
"name": "Elena [\"Gonzalez\"] Ferreiro",
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119206983 | 1101.0593 | 2011-01-03 | Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables | This Report summarizes the results of the first 10 months' activities of the LHC Higgs Cross Sections Working Group. The main goal of the working group was to present the status-of-art on Higgs Physics at the LHC integrating all new results that have appeared in the last few years. The Report is more than a mere collec... | [
"hep-ph",
"hep-ex"
] | null | [
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6322616 | 1101.0522 | 2011-01-03 | Brownian motion, reflection groups and Tanaka formula | In the setting of finite reflection groups, we prove that the projection of a Brownian motion onto a closed Weyl chamber is another Brownian motion normally reflected on the walls of the chamber. Our proof is probabilistic and the decomposition we obtain may be seen as a multidimensional extension of Tanaka's formula f... | [
"math.PR"
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{
"author_id": "n demni_1",
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"author_id": "d l'epingle_0",
"name": "Dominique L'epingle",
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119292635 | 1101.0561 | 2011-01-03 | CT10 parton distributions and other developments in the global QCD analysis | We summarize several projects carried out by the CTEQ global analysis of parton distribution functions (PDFs) of the proton during 2010. We discuss a recently released CT10 family of PDFs with a fixed and variable QCD coupling strength; implementation of combined HERA and Tevatron lepton asymmetry data sets; theoretica... | [
"hep-ph"
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] | null | null | null |
119098702 | 1101.0557 | 2011-01-03 | Index for three dimensional superconformal field theories with general R-charge assignments | We derive a general formula of an index for three dimensional N=2 superconformal field theories with general R-charge assignments to chiral multiplets by using the localization method in S^2xS^1 background. As examples we compute the index for theories in a few mirror pairs, and confirm the agreement of the indices in ... | [
"hep-th"
] | null | [
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] | null | null | null |
14207633 | 1101.0536 | 2011-01-03 | The PDF4LHC Working Group Interim Report | This document is intended as a study of benchmark cross sections at the LHC (at 7 TeV) at NLO using modern parton distribution functions currently available from the 6 PDF fitting groups that have participated in this exercise. It also contains a succinct user guide to the computation of PDFs, uncertainties and correla... | [
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{
"author_id": "s alekhin_1",
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"author_id": "s alioli_1",
"name": "Simone Alioli",
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54688656 | 1101.0590 | 2011-01-03 | Diffeomorphisms in group field theories | We study the issue of diffeomorphism symmetry in group field theories (GFT), using the recently introduced noncommutative metric representation. In the colored Boulatov model for 3d gravity, we identify a field (quantum) symmetry which ties together the vertex translation invariance of discrete gravity, the flatness co... | [
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"author_id": "f girelli_0",
"name": "Florian Girelli",
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17524618 | 1101.0538 | 2011-01-03 | The PDF4LHC Working Group Interim Recommendations | This note provides an interim summary of the current recommendations of the PDF4LHC working group for the use of parton distribution functions (PDFs) and of PDF uncertainties at the LHC, for cross section and cross section uncertainty calculations. It also contains a succinct user guide to the computation of PDF uncert... | [
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"hep-ex"
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] | null | null | null |
119298404 | 1101.0547 | 2011-01-03 | Are Solar Active Regions with Major Flares More Fractal, Multifractal, or Turbulent than Others? | Multiple recent investigations of solar magnetic field measurements have raised claims that the scale-free (fractal) or multiscale (multifractal) parameters inferred from the studied magnetograms may help assess the eruptive potential of solar active regions, or may even help predict major flaring activity stemming fro... | [
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6836993 | 1101.0553 | 2011-01-03 | Image Separation using Wavelets and Shearlets | In this paper, we present an image separation method for separating images into point- and curvelike parts by employing a combined dictionary consisting of wavelets and compactly supported shearlets utilizing the fact that they sparsely represent point and curvilinear singularities, respectively. Our methodology is bas... | [
"math.NA"
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"author_id": "w lim_1",
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15358164 | 1101.0510 | 2011-01-03 | Good Friends, Bad News - Affect and Virality in Twitter | The link between affect, defined as the capacity for sentimental arousal on the part of a message, and virality, defined as the probability that it be sent along, is of significant theoretical and practical importance, e.g. for viral marketing. A quantitative study of emailing of articles from the NY Times finds a stro... | [
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{
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"author_id": "a arvidsson_1",
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8089289 | 1101.0797 | 2011-01-04 | Quantum Adversary (Upper) Bound | We describe a method to upper bound the quantum query complexity of Boolean formula evaluation problems, using fundamental theorems about the general adversary bound. This nonconstructive method can give an upper bound on query complexity without producing an algorithm. For example, we describe an oracle problem which ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53573418 | 1101.0672 | 2011-01-04 | The gravity-related decoherence master equation from hybrid dynamics | Canonical coupling between classical and quantum systems cannot result in reversible equations, rather it leads to irreversible master equations. Coupling of quantized non-relativistic matter to gravity is illustrated by a simplistic example. The heuristic derivation yields the theory of gravity-related decoherence pro... | [
"quant-ph",
"gr-qc"
] | null | [
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55344351 | 1101.0816 | 2011-01-04 | Mismatch and Misalignment: Dark Haloes and Satellites of Disc Galaxies | (Abridged) We study the phase-space distribution of satellite galaxies associated with late-type galaxies in the GIMIC suite of simulations. GIMIC consists of re-simulations of 5 cosmologically representative regions from the Millennium simulation, which have higher resolution and incorporate baryonic physics. Whilst t... | [
"astro-ph.CO",
"astro-ph.GA"
] | null | [
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] | null | null | null |
9843196 | 1101.0776 | 2011-01-04 | Multiplicative Drift Analysis | In this work, we introduce multiplicative drift analysis as a suitable way to analyze the runtime of randomized search heuristics such as evolutionary algorithms. We give a multiplicative version of the classical drift theorem. This allows easier analyses in those settings where the optimization progress is roughly pro... | [
"cs.NE"
] | null | [
"target.author.publication_history.key_reference",
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] | null | null | null |
16139890 | 1101.0653 | 2011-01-04 | On the Performance of Selection Cooperation with Outdated CSI and Channel Estimation Errors | In this paper, we investigate the performance of selection cooperation in the presence of imperfect channel estimation. In particular, we consider a cooperative scenario with multiple relays and amplify-and-forward protocol over frequency flat fading channels. In the selection scheme, only the "best" relay which maximi... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "m seyfi_1",
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16986756 | 1101.0761 | 2011-01-04 | A proof of the Global Attractor Conjecture in the single linkage class case | This paper is concerned with the dynamical properties of deterministically modeled chemical reaction systems. Specifically, this paper provides a proof of the Global Attractor Conjecture in the setting where the underlying reaction diagram consists of a single linkage class, or connected component. The conjecture dates... | [
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] | null | [
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8403415 | 1101.0796 | 2011-01-04 | Super-Polynomial Quantum Speed-ups for Boolean Evaluation Trees with Hidden Structure | We give a quantum algorithm for evaluating a class of boolean formulas (such as NAND trees and 3-majority trees) on a restricted set of inputs. Due to the structure of the allowed inputs, our algorithm can evaluate a depth $n$ tree using $O(n^{2+\log\omega})$ queries, where $\omega$ is independent of $n$ and depends on... | [
"quant-ph"
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"name": "Shelby Kimmel",
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119267270 | 1101.0669 | 2011-01-04 | Multiwavelength analysis of four millisecond pulsars | Radio timing observations of millisecond pulsars (MSPs) in support of Fermi LAT observations of the gamma-ray sky enhance the sensitivity of high-energy pulsation searches. With contemporaneous ephemerides we have detected gamma-ray pulsations from PSR B1937+21, the first MSP ever discovered, and B1957+20, the first kn... | [
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{
"author_id": "l guillemot_1",
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"author_id": "i cognard_1",
"name": "Ismael Cognard",
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119306211 | 1101.0722 | 2011-01-04 | Time-dependent versus static quantum transport simulations beyond linear response | To explore whether the density-functional theory non-equilibrium Green's function formalism (DFT-NEGF) provides a rigorous framework for quantum transport, we carried out time-dependent density functional theory (TDDFT) calculations of the transient current through two realistic molecular devices, a carbon chain and a ... | [
"cond-mat.mtrl-sci",
"cond-mat.mes-hall"
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{
"author_id": "c yam_1",
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"author_id": "x zheng_75",
"name": "Xiao Zheng",
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43976157 | 1101.0905 | 2011-01-05 | Laplace Approximated EM Microarray Analysis: An Empirical Bayes Approach for Comparative Microarray Experiments | A two-groups mixed-effects model for the comparison of (normalized) microarray data from two treatment groups is considered. Most competing parametric methods that have appeared in the literature are obtained as special cases or by minor modification of the proposed model. Approximate maximum likelihood fitting is acco... | [
"stat.ME"
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{
"author_id": "h bar_1",
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"author_id": "j booth_3",
"name": "James [\"G.\"] Booth",
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14470811 | 1101.1058 | 2011-01-05 | Requirements for contractility in disordered cytoskeletal bundles | Actomyosin contractility is essential for biological force generation, and is well understood in highly organized structures such as striated muscle. Additionally, actomyosin bundles devoid of this organization are known to contract both in vivo and in vitro, which cannot be described by standard muscle models. To narr... | [
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{
"author_id": "m lenz_1",
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{
"author_id": "m gardel_1",
"name": "Margaret [\"Lise\"] Gardel",
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"num_papers": ... | null |
14872560 | 1101.1045 | 2011-01-05 | Beating the Gilbert-Varshamov Bound for Online Channels | In the online channel coding model, a sender wishes to communicate a message to a receiver by transmitting a codeword x =(x_1,...,x_n) in {0,1}^n bit by bit via a channel limited to at most pn corruptions. The channel is online in the sense that at the ith step the channel decides whether to flip the ith bit or not and... | [
"cs.IT",
"math.IT"
] | null | [
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16018150 | 1101.0906 | 2011-01-05 | Energy Efficiency and Reliability in Wireless Biomedical Implant Systems | The use of wireless implant technology requires correct delivery of the vital physiological signs of the patient along with the energy management in power-constrained devices. Toward these goals, we present an augmentation protocol for the physical layer of the Medical Implant Communications Service (MICS) with focus o... | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "j abouei_1",
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"author_id": "j brown_12",
"name": "J. [\"David\"] Brown",
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118854355 | 1101.1111 | 2011-01-05 | Shock Breakout in Dense Mass Loss: Luminous Supernovae | We examine the case where a circumstellar medium around a supernova is sufficiently opaque that a radiation dominated shock propagates in the circumstellar region. The initial propagation of the shock front into the circumstellar region can be approximated by a self-similar solution that determines the radiative energy... | [
"astro-ph.HE"
] | null | [
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] | null | null | null |
27453516 | 1101.0959 | 2011-01-05 | Reuse, recycle, reweigh: Combating influenza through efficient sequential Bayesian computation for massive data | Massive datasets in the gigabyte and terabyte range combined with the availability of increasingly sophisticated statistical tools yield analyses at the boundary of what is computationally feasible. Compromising in the face of this computational burden by partitioning the dataset into more tractable sizes results in st... | [
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205223813 | 1101.1080 | 2011-01-05 | Sub-millimetre galaxies reside in dark matter halos with masses greater than 3x10^11 solar masses | The extragalactic background light at far-infrared wavelengths originates from optically-faint, dusty, star-forming galaxies in the universe with star-formation rates at the level of a few hundred solar masses per year. Due to the relatively poor spatial resolution of far-infrared telescopes, the faint sub-millimetre g... | [
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49921081 | 1101.0931 | 2011-01-05 | The principle of relative locality | We propose a deepening of the relativity principle according to which the invariant arena for non-quantum physics is a phase space rather than spacetime. Descriptions of particles propagating and interacting in spacetimes are constructed by observers, but different observers, separated from each other by translations, ... | [
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119190415 | 1101.1026 | 2011-01-05 | Cosmological structure formation with clustering quintessence | We study large-scale structure formation in the presence of a quintessence component with zero speed of sound in the framework of Eulerian Perturbation Theory. Due to the absence of pressure gradients, quintessence and dark matter are comoving and can be studied as a unique fluid in terms of the total energy density co... | [
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40304979 | 1101.0955 | 2011-01-05 | Approximate Bayesian Computational methods | Also known as likelihood-free methods, approximate Bayesian computational (ABC) methods have appeared in the past ten years as the most satisfactory approach to untractable likelihood problems, first in genetics then in a broader spectrum of applications. However, these methods suffer to some degree from calibration di... | [
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] | null | null | null |
9323180 | 1101.1108 | 2011-01-05 | Eulerian-Catalan Numbers | We show that the Eulerian-Catalan numbers enumerate Dyck permutations. We provide two proofs for this fact, the first using the geometry of alcoved polytopes and the second a direct combinatorial proof via an Eulerian-Catalan analogue of the Chung-Feller theorem. | [
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"name": "Seth Sullivant",
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51682852 | 1101.0947 | 2011-01-05 | Subsampling Methods for genomic inference | Large-scale statistical analysis of data sets associated with genome sequences plays an important role in modern biology. A key component of such statistical analyses is the computation of $p$-values and confidence bounds for statistics defined on the genome. Currently such computation is commonly achieved through ad h... | [
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39226150 | 1101.1028 | 2011-01-05 | Measurement of the Forward-Backward Asymmetry in the B -> K(*) mu+ mu- Decay and First Observation of the Bs -> phi mu+ mu- Decay | We reconstruct the rare decays $B^+ \to K^+\mu^+\mu^-$, $B^0 \to K^{*}(892)^0\mu^+\mu^-$, and $B^0_s \to \phi(1020)\mu^+\mu^-$ in a data sample corresponding to $4.4 {\rm fb^{-1}}$ collected in $p\bar{p}$ collisions at $\sqrt{s}=1.96 {\rm TeV}$ by the CDF II detector at the Fermilab Tevatron Collider. Using $121 \pm 16... | [
"hep-ex"
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12042143 | 1101.1043 | 2011-01-05 | Global Stability Analysis of Fluid Flows using Sum-of-Squares | This paper introduces a new method for proving global stability of fluid flows through the construction of Lyapunov functionals. For finite dimensional approximations of fluid systems, we show how one can exploit recently developed optimization methods based on sum-of-squares decomposition to construct a polynomial Lya... | [
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2928790 | 1101.1110 | 2011-01-05 | Provenance for Aggregate Queries | We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggregation, and recent work has suggested to capture provenance by annotating the different database tuples with elements of a commutative semir... | [
"cs.DB"
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14662182 | 1101.1256 | 2011-01-06 | Non-clairvoyant Scheduling Games | In a scheduling game, each player owns a job and chooses a machine to execute it. While the social cost is the maximal load over all machines (makespan), the cost (disutility) of each player is the completion time of its own job. In the game, players may follow selfish strategies to optimize their cost and therefore th... | [
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54623620 | 1101.1300 | 2011-01-06 | Impact of Heavy Quark Masses on Parton Distributions and LHC Phenomenology | We present a determination of the parton distributions of the nucleon from a global set of hard scattering data using the NNPDF methodology including heavy quark mass effects: NNPDF2.1. In comparison to the previous NNPDF2.0 parton determination, the dataset is enlarged to include deep--inelastic charm structure functi... | [
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119184716 | 1101.1268 | 2011-01-06 | Quantum phase transitions in a strongly entangled spin-orbital chain: A field-theoretical approach | Motivated by recent experiments on quasi-1D vanadium oxides, we study quantum phase transitions in a one-dimensional spin-orbital model describing a Haldane chain and a classical Ising chain locally coupled by the relativistic spin-orbit interaction. By employing a field-theoretical approach, we analyze the topology of... | [
"cond-mat.str-el"
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{
"author_id": "a nersesyan_0",
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9463668 | 1101.1223 | 2011-01-06 | Short period eclipsing binary candidates identified using SuperWASP | We present light curves and periods of 53 candidates for short period eclipsing binary stars identified by SuperWASP. These include 48 newly identified objects with periods <2x10^4 seconds (~0.23d), as well as the shortest period binary known with main sequence components (GSC2314-0530 = 1SWASP J022050.85+332047.6) and... | [
"astro-ph.SR"
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"target.key_reference"
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119100445 | 1101.1297 | 2011-01-06 | Thermodynamics of the hot BIon | We investigate the thermodynamics of the recently obtained finite temperature BIon solution of arXiv:1012.1494, focusing on two aspects. The first concerns comparison of the free energy of the three available phases for the finite temperature brane-antibrane wormhole configuration. Based on this we propose a heuristic ... | [
"hep-th"
] | null | [
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] | null | null | null |
5658477 | 1101.1237 | 2011-01-06 | Statistical Analysis of Link Scheduling on Long Paths | We study how the choice of packet scheduling algorithms influences end-to-end performance on long network paths. Taking a network calculus approach, we consider both deterministic and statistical performance metrics. A key enabling contribution for our analysis is a significantly sharpened method for computing a statis... | [
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18518518 | 1101.1154 | 2011-01-06 | Liquid chromatography mass spectrometry-based proteomics: Biological and technological aspects | Mass spectrometry-based proteomics has become the tool of choice for identifying and quantifying the proteome of an organism. Though recent years have seen a tremendous improvement in instrument performance and the computational tools used, significant challenges remain, and there are many opportunities for statisticia... | [
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14462828 | 1101.1321 | 2011-01-06 | Anisotropic smoothness classes : from finite element approximation to image models | We propose and study quantitative measures of smoothness which are adapted to anisotropic features such as edges in images or shocks in PDE's. These quantities govern the rate of approximation by adaptive finite elements, when no constraint is imposed on the aspect ratio of the triangles, the simplest examples of such ... | [
"math.NA"
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17757265 | 1101.1434 | 2011-01-07 | Correlation of Fermi photons with high-frequency radio giant pulses from the Crab pulsar | To constrain the giant pulse (GP) emission mechanism and test the model of Lyutikov (2007) for GP emission, we have carried out a campaign of simultaneous observations of the Crab pulsar at gamma-ray (Fermi) and radio (Green Bank Telescope) wavelengths. Over 10 hours of simultaneous observations we obtained a sample of... | [
"astro-ph.GA"
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5627005 | 1101.1438 | 2011-01-07 | Optimal detection of changepoints with a linear computational cost | We consider the problem of detecting multiple changepoints in large data sets. Our focus is on applications where the number of changepoints will increase as we collect more data: for example in genetics as we analyse larger regions of the genome, or in finance as we observe time-series over longer periods. We consider... | [
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119269856 | 1101.1467 | 2011-01-07 | Six New Recycled Globular Cluster Pulsars Discovered with the Green Bank Telescope | We have completed sensitive searches for new pulsars in seven globular clusters using the Robert C. Byrd Green Bank Telescope, and have discovered six new recycled pulsars (four in NGC 6517 and two in M22), five of which are fully recycled millisecond pulsars with P < 10 ms. We report full timing solutions for all six ... | [
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767196 | 1101.1456 | 2011-01-07 | A Bayesian technique for the detection of point sources in CMB maps | The detection and flux estimation of point sources in cosmic microwave background (CMB) maps is a very important task in order to clean the maps and also to obtain relevant astrophysical information. In this paper we propose a maximum a posteriori (MAP) approach detection method in a Bayesian scheme which incorporates ... | [
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2306143 | 1101.1512 | 2011-01-07 | Adaptive multiresolution analysis based on anisotropic triangulations | A simple greedy refinement procedure for the generation of data-adapted triangulations is proposed and studied. Given a function of two variables, the algorithm produces a hierarchy of triangulations and piecewise polynomial approximations on these triangulations. The refinement procedure consists in bisecting a triang... | [
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16730024 | 1101.1452 | 2011-01-07 | Greedy bisection generates optimally adapted triangulations | We study the properties of a simple greedy algorithm for the generation of data-adapted anisotropic triangulations. Given a function f, the algorithm produces nested triangulations and corresponding piecewise polynomial approximations of f. The refinement procedure picks the triangle which maximizes the local Lp approx... | [
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4360023 | 1101.1359 | 2011-01-07 | Exponential-Family Random Graph Models for Valued Networks | Exponential-family random graph models (ERGMs) provide a principled and flexible way to model and simulate features common in social networks, such as propensities for homophily, mutuality, and friend-of-a-friend triad closure, through choice of model terms (sufficient statistics). However, those ERGMs modeling the mor... | [
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17168884 | 1101.1431 | 2011-01-07 | Convergence of stochastic gene networks to hybrid piecewise deterministic processes | We study the asymptotic behavior of multiscale stochastic gene networks using weak limits of Markov jump processes. Depending on the time and concentration scales of the system we distinguish four types of limits: continuous piecewise deterministic processes (PDP) with switching, PDP with jumps in the continuous variab... | [
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"name": "Arnaud Debussche",
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... | null |
88519015 | 1101.1528 | 2011-01-07 | SMC^2: an efficient algorithm for sequential analysis of state-space models | We consider the generic problem of performing sequential Bayesian inference in a state-space model with observation process y, state process x and fixed parameter theta. An idealized approach would be to apply the iterated batch importance sampling (IBIS) algorithm of Chopin (2002). This is a sequential Monte Carlo alg... | [
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] | null | null | null |
19816817 | 1101.1448 | 2011-01-07 | Limits on Neutrino Emission from Gamma-Ray Bursts with the 40 String IceCube Detector | IceCube has become the first neutrino telescope with a sensitivity below the TeV neutrino flux predicted from gamma-ray bursts if GRBs are responsible for the observed cosmic-ray flux above $10^{18}$ eV. Two separate analyses using the half-complete IceCube detector, one a dedicated search for neutrinos from $p \gamma$... | [
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249567585 | 1101.1397 | 2011-01-07 | Joint Bayesian separation and restoration of CMB from convolutional mixtures | We propose a Bayesian approach to joint source separation and restoration for astrophysical diffuse sources. We constitute a prior statistical model for the source images by using their gradient maps. We assume a t-distribution for the gradient maps in different directions, because it is able to fit both smooth and spa... | [
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... | null |
268117910 | 1101.1529 | 2011-01-07 | SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems | Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and the population of giant planets around other stars. In keeping with SDSS tradit... | [
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] | null | [
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119300621 | 1101.1369 | 2011-01-07 | Multilevel Monte Carlo algorithms for L\'{e}vy-driven SDEs with Gaussian correction | We introduce and analyze multilevel Monte Carlo algorithms for the computation of $\mathbb {E}f(Y)$, where $Y=(Y_t)_{t\in[0,1]}$ is the solution of a multidimensional L\'{e}vy-driven stochastic differential equation and $f$ is a real-valued function on the path space. The algorithm relies on approximations obtained by ... | [
"math.PR"
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] | null | null | null |
7969595 | 1101.1396 | 2011-01-07 | Adaptive Langevin Sampler for Separation of t-Distribution Modelled Astrophysical Maps | We propose to model the image differentials of astrophysical source maps by Student's t-distribution and to use them in the Bayesian source separation method as priors. We introduce an efficient Markov Chain Monte Carlo (MCMC) sampling scheme to unmix the astrophysical sources and describe the derivation details. In th... | [
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118728207 | 1101.1587 | 2011-01-08 | Adaptive and anisotropic piecewise polynomial approximation | We survey the main results of approximation theory for adaptive piecewise polynomial functions. In such methods, the partition on which the piecewise polynomial approximation is defined is not fixed in advance, but adapted to the given function f which is approximated. We focus our discussion on (i) the properties that... | [
"math.NA"
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{
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15294942 | 1101.1637 | 2011-01-09 | A Science Model Driven Retrieval Prototype | This paper is about a better understanding on the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-driven Digital Libraries. Three science model driven retrieval services are presented: co-word analysis based query expansion, re-ranking via ... | [
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"... | null |
8268733 | 1101.1688 | 2011-01-09 | Secret Writing on Dirty Paper: A Deterministic View | Recently there has been a lot of success in using the deterministic approach to provide approximate characterization of Gaussian network capacity. In this paper, we take a deterministic view and revisit the problem of wiretap channel with side information. A precise characterization of the secrecy capacity is obtained ... | [
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"author_id": "t liu_104",
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... | null |
10069159 | 1101.1639 | 2011-01-09 | Applying Science Models for Search | The paper proposes three different kinds of science models as value-added services that are integrated in the retrieval process to enhance retrieval quality. The paper discusses the approaches Search Term Recommendation, Bradfordizing and Author Centrality on a general level and addresses implementation issues of the m... | [
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... | null |
1858607 | 1101.1707 | 2011-01-09 | The Network Structure of Economic Output | Much of the analysis of economic growth has focused on the study of aggregate output. Here, we deviate from this tradition and look instead at the structure of output embodied in the network connecting countries to the products that they export.We characterize this network using four structural features: the negative r... | [
"q-fin.GN",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119274955 | 1101.1821 | 2011-01-10 | The life cycle of star cluster in a tidal field | The evolution of globular clusters due to 2-body relaxation results in an outward flow of energy and at some stage all clusters need a central energy source to sustain their evolution. Henon provided the insight that we do not need to know the details of the energy production in order to understand the relaxation-drive... | [
"astro-ph.GA",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1523256 | 1101.1902 | 2011-01-10 | Sorting, Searching, and Simulation in the MapReduce Framework | In this paper, we study the MapReduce framework from an algorithmic standpoint and demonstrate the usefulness of our approach by designing and analyzing efficient MapReduce algorithms for fundamental sorting, searching, and simulation problems. This study is motivated by a goal of ultimately putting the MapReduce frame... | [
"cs.DC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11848221 | 1101.1919 | 2011-01-10 | Correlation transfer in stochastically driven oscillators over long and short time scales | In the absence of synaptic coupling, two or more neural oscillators may become synchronized by virtue of the statistical correlations in their noisy input streams. Recent work has shown that the degree of correlation transfer from input currents to output spikes depends not only on intrinsic oscillator dynamics, but al... | [
"math.DS",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118677425 | 1101.1764 | 2011-01-10 | Revisiting the radio interferometer measurement equation. I. A full-sky Jones formalism | Since its formulation by Hamaker et al., the radio interferometer measurement equation (RIME) has provided a rigorous mathematical basis for the development of novel calibration methods and techniques, including various approaches to the problem of direction-dependent effects (DDEs). This series of papers aims to place... | [
"astro-ph.IM"
] | null | [
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] | null | null | null |
2369389 | 1101.1727 | 2011-01-10 | Finitary languages | The class of omega-regular languages provides a robust specification language in verification. Every omega-regular condition can be decomposed into a safety part and a liveness part. The liveness part ensures that something good happens "eventually". Finitary liveness was proposed by Alur and Henzinger as a stronger fo... | [
"cs.FL"
] | null | [
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{
"author_id": "k chatterjee_3",
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"name": "Nathanaël Fijalkow",
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118368884 | 1101.1954 | 2011-01-10 | The Black-Hole Mass in M87 from Gemini/NIFS Adaptive Optics Observations | We present the stellar kinematics in the central 2" of the luminous elliptical galaxy M87 (NGC 4486), using laser adaptive optics to feed the Gemini telescope integral-field spectrograph, NIFS. The velocity dispersion rises to 480 km/s at 0.2". We combine these data with extensive stellar kinematics out to large radii ... | [
"astro-ph.CO"
] | null | [
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] | null | null | null |
16633044 | 1101.1920 | 2011-01-10 | Superposition Coding-Based Bounds and Capacity for the Cognitive Z-Interference Channels | This paper considers the cognitive interference channel (CIC) with two transmitters and two receivers, in which the cognitive transmitter non-causally knows the message and codeword of the primary transmitter. We first introduce a discrete memoryless more capable CIC, which is an extension to the more capable broadcast... | [
"cs.IT",
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118406296 | 1101.1879 | 2011-01-10 | The GALFA-HI Survey: Data Release 1 | We present the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) survey, and its first full data release (DR1). GALFA-HI is a high resolution (~ 4'), large area (13000 deg^2), high spectral resolution (0.18 km/s), wide band (-700 < v_LSR < +700 km/s) survey of the Galactic interstellar medium in the 21-cm line hyperfine... | [
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] | null | null | null |
67763453 | 1101.1745 | 2011-01-10 | The MeqTrees software system and its use for third-generation calibration of radio interferometers | The formulation of the radio interferometer measurement equation (RIME) by Hamaker et al. has provided us with an elegant mathematical apparatus for better understanding, simulation and calibration of existing and future instruments. The calibration of the new radio telescopes (LOFAR, SKA) would be unthinkable without ... | [
"astro-ph.IM"
] | null | [
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] | null | null | null |
119159563 | 1101.1760 | 2011-01-10 | Activity phase transition for constrained dynamics | We consider two cases of kinetically constrained models, namely East and FA-1f models. The object of interest of our work is the activity A(t) defined as the total number of configuration changes in the interval [0,t] for the dynamics on a finite domain. It has been shown in [GJLPDW1,GJLPDW2] that the large deviations ... | [
"cond-mat.stat-mech",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13443195 | 1101.1703 | 2011-01-10 | Detecting Important Nodes to Community Structure Using the Spectrum of the Graph | Many complex systems can be represented as networks, and how a network breaks up into subnetworks or communities is of wide interest. However, the development of a method to detect nodes important to communities that is both fast and accurate is a very challenging and open problem. In this manuscript, we introduce a ne... | [
"physics.soc-ph",
"cs.SI"
] | null | [
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] | null | null | null |
50896172 | 1101.1959 | 2011-01-10 | On Machine-Learned Classification of Variable Stars with Sparse and Noisy Time-Series Data | With the coming data deluge from synoptic surveys, there is a growing need for frameworks that can quickly and automatically produce calibrated classification probabilities for newly-observed variables based on a small number of time-series measurements. In this paper, we introduce a methodology for variable-star class... | [
"astro-ph.IM",
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2572769 | 1101.2279 | 2011-01-11 | Planning with Partial Preference Models | Current work in planning with preferences assume that the user's preference models are completely specified and aim to search for a single solution plan. In many real-world planning scenarios, however, the user probably cannot provide any information about her desired plans, or in some cases can only express partial pr... | [
"cs.AI"
] | null | [
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250165377 | 1101.2026 | 2011-01-11 | Planck Early Results XI: Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations | We present precise Sunyaev-Zeldovich (SZ) effect measurements in the direction of 62 nearby galaxy clusters (z <0.5) detected at high signal-to-noise in the first Planck all-sky dataset. The sample spans approximately a decade in total mass, 10^14 < M_500 < 10^15, where M_500 is the mass corresponding to a total densit... | [
"astro-ph.CO"
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118640018 | 1101.2035 | 2011-01-11 | Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey | We present the statistical properties of the first version of the Cold Core Catalogue of Planck Objects (C3PO), in terms of their spatial distribution, temperature, distance, mass, and morphology. We also describe the statistics of the Early Cold Core Catalogue (ECC, delivered with the Early Release Compact Source Cata... | [
"astro-ph.GA"
] | null | [
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7059984 | 1101.2220 | 2011-01-11 | Stability Analysis of Transportation Networks with Multiscale Driver Decisions | Stability of Wardrop equilibria is analyzed for dynamical transportation networks in which the drivers' route choices are influenced by information at multiple temporal and spatial scales. The considered model involves a continuum of indistinguishable drivers commuting between a common origin/destination pair in an acy... | [
"math.DS",
"cs.GT",
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"nlin.AO"
] | null | [
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"name": "Ketan Savla",
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74125 | 1101.2007 | 2011-01-11 | New Results on Multiple-Input Multiple-Output Broadcast Channels with Confidential Messages | This paper presents two new results on multiple-input multiple-output (MIMO) Gaussian broadcast channels with confidential messages. First, the problem of the MIMO Gaussian wiretap channel is revisited. A matrix characterization of the capacity-equivocation region is provided, which extends the previous result on the s... | [
"cs.IT",
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"author_id": "t liu_104",
"name": "Tie Liu",
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55988563 | 1101.2022 | 2011-01-11 | Planck Early Results: The Planck mission | The European Space Agency's Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue to gather scientific data until the end of its cryogenic lifetime. We give an overview of the his... | [
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"author_id": "n aghanim_1",
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55843628 | 1101.2082 | 2011-01-11 | Detection of a spectral break in the extra hard component of GRB 090926A | We report on the observation of the bright, long gamma-ray burst, GRB 090926A, by the Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT) instruments on board the \Fermi\ Gamma-ray Space Telescope. GRB 090926A shares several features with other bright LAT bursts. In particular, it clearly shows a short spike i... | [
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{
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{
"author_id": "m ackermann_1",
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{
"author_id": "m ajello_1",
"name": "Marco Ajello",
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263735914 | 1101.2024 | 2011-01-11 | Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample | We present the first all-sky sample of galaxy clusters detected blindly by the Planck satellite through the Sunyaev-Zeldovich (SZ) effect from its six highest frequencies. This early SZ (ESZ) sample is comprised of 189 candidates, which have a high signal-to-noise ratio ranging from 6 to 29. Its high reliability (purit... | [
"astro-ph.CO"
] | null | [
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{
"author_id": "p ade_1",
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{
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"name": "Nabila Aghanim",
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118438715 | 1101.2234 | 2011-01-11 | The shape of the CMB lensing bispectrum | Lensing of the CMB generates a significant bispectrum, which should be detected by the Planck satellite at the 5-sigma level and is potentially a non-negligible source of bias for f_NL estimators of local non-Gaussianity. We extend current understanding of the lensing bispectrum in several directions: (1) we perform a ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9354023 | 1101.2044 | 2011-01-11 | Planck Early Results: Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue | The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky nature of the catalogue, this measurement extends to the rarest and brightest sources in the sky. At low... | [
"astro-ph.CO"
] | null | [
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{
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... | [
{
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21421077 | 1101.2185 | 2011-01-11 | Luminosity Determination in pp Collisions at sqrt(s)=7 TeV Using the ATLAS Detector at the LHC | Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity t... | [
"hep-ex"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m aaboud_1",
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{
"author_id": "g aad_1",
"name": "Georges Aad",
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"num_... | null |
73563632 | 1101.2023 | 2011-01-11 | Planck Early Results. II. The thermal performance of Planck | The performance of the Planck instruments in space is enabled by their low operating temperatures, 20K for LFI and 0.1K for HFI, achieved through a combination of passive radiative cooling and three active mechanical coolers. The scientific requirement for very broad frequency coverage led to two detector technologies ... | [
"astro-ph.IM"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p ade_1",
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{
"author_id": "n aghanim_1",
"name": "Nabila Aghanim",
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"num_papers": n... | null |
260526115 | 1101.2034 | 2011-01-11 | Planck Early Results: The submillimetre properties of a sample of Galactic cold clumps | (abridged) We perform a detailed investigation of sources from the Cold Cores Catalogue of Planck Objects (C3PO). Our goal is to probe the reliability of the detections, validate the separation between warm and cold dust emission components, provide the first glimpse at the nature, internal morphology and physical char... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p ade_1",
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{
"author_id": "n aghanim_1",
"name": "Nabila Aghanim",
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"num... | null |
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