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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17058691 | 0708.3457 | 2007-08-26 | Enhanced Group Analysis and Exact Solutions of Variable Coefficient Semilinear Diffusion Equations with a Power Source | A new approach to group classification problems and more general investigations on transformational properties of classes of differential equations is proposed. It is based on mappings between classes of differential equations, generated by families of point transformations. A class of variable coefficient (1+1)-dimens... | [
"math-ph",
"math.MP",
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58270 | 0708.3696 | 2007-08-27 | Relative-Error CUR Matrix Decompositions | Many data analysis applications deal with large matrices and involve approximating the matrix using a small number of ``components.'' Typically, these components are linear combinations of the rows and columns of the matrix, and are thus difficult to interpret in terms of the original features of the input data. In thi... | [
"cs.DS"
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"author_id": "m mahoney_1",
"name": "Michael [\"W.\"] Mahoney",
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15496367 | 0708.3640 | 2007-08-27 | Two-integral distribution functions for axisymmetric systems | Some formulae are presented for finding two-integral distribution functions (DFs) which depends only on the two classical integrals of the energy and the magnitude of the angular momentum with respect to the axis of symmetry for stellar systems with known axisymmetric densities. They come from an combination of the ide... | [
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8872108 | 0708.3601 | 2007-08-27 | A correlated topic model of Science | Topic models, such as latent Dirichlet allocation (LDA), can be useful tools for the statistical analysis of document collections and other discrete data. The LDA model assumes that the words of each document arise from a mixture of topics, each of which is a distribution over the vocabulary. A limitation of LDA is the... | [
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"author_id": "d blei_1",
"name": "David [\"M.\"] Blei",
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"name": "John [\"D.\"] Lafferty",
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5107997 | 0708.3734 | 2007-08-28 | Searching for a dangerous host: randomized vs. deterministic | A Black Hole is an harmful host in a network that destroys incoming agents without leaving any trace of such event. The problem of locating the black hole in a network through a team of agent coordinated by a common protocol is usually referred in literature as the Black Hole Search problem (or BHS for brevity) and it ... | [
"cs.DC"
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"author_id": "i nitto_1",
"name": "Igor Nitto",
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"author_id": "r venturini_1",
"name": "Rossano Venturini",
"publication_history": null,
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... | null |
17276607 | 0708.3730 | 2007-08-28 | Densities for Rough Differential Equations under Hoermander's Condition | We consider stochastic differential equations dY=V(Y)dX driven by a multidimensional Gaussian process X in the rough path sense. Using Malliavin Calculus we show that Y(t) admits a density for t in (0,T] provided (i) the vector fields V=(V_1,...,V_d) satisfy Hoermander's condition and (ii) the Gaussian driving signal X... | [
"math.PR"
] | null | [
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10119961 | 0708.3719 | 2007-08-28 | Evolution of Star Clusters near the Galactic Center: Fully Self-consistent N-body Simulations | We have performed fully self-consistent $N$-body simulations of star clusters near the Galactic center (GC). Such simulations have not been performed because it is difficult to perform fast and accurate simulations of such systems using conventional methods. We used the Bridge code, which integrates the parent galaxy u... | [
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"name": "Michiko [\"S.\"] Fujii",
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"author_id": "m iwasawa_1",
"name": "Masaki Iwasawa",
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122745639 | 0708.3818 | 2007-08-28 | All-sky search for periodic gravitational waves in LIGO S4 data | We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1000 Hz and with the frequency's time derivative in the range -1.0E-8 Hz/s to zero. Data from the fourth LIGO science run (S4) have been used in this search. Three different semi-coherent methods of transfo... | [
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"author_id": "r abbott_2",
"name": "Richard Abbott",
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30623460 | 0708.3797 | 2007-08-28 | A General Framework for the Parametrization of Hierarchical Models | In this paper, we describe centering and noncentering methodology as complementary techniques for use in parametrization of broad classes of hierarchical models, with a view to the construction of effective MCMC algorithms for exploring posterior distributions from these models. We give a clear qualitative understandin... | [
"stat.ME"
] | null | [
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6577334 | 0708.3774 | 2007-08-28 | Fisher Lecture: Dimension Reduction in Regression | Beginning with a discussion of R. A. Fisher's early written remarks that relate to dimension reduction, this article revisits principal components as a reductive method in regression, develops several model-based extensions and ends with descriptions of general approaches to model-based and model-free dimension reducti... | [
"stat.ME"
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] | null | null | null |
118521453 | 0708.3786 | 2007-08-28 | Temperature and Polarization CMB Maps from Primordial non-Gaussianities of the Local Type | The forthcoming Planck experiment will provide high sensitivity polarization measurements that will allow us to further tighten the f_NL bounds from the temperature data. Monte Carlo simulations of non-Gaussian CMB maps have been used as a fundamental tool to characterize non-Gaussian signatures in the data, as they al... | [
"astro-ph"
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"author_id": "m liguori_1",
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"author_id": "a yadav_1",
"name": "Amit [\"P.\",\"S.\"] Yadav",
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15446680 | 0708.3938 | 2007-08-29 | On the proximinality of ridge functions | Using two results of Garkavi, Medvedev and Khavinson, we give sufficient conditions for proximinality of sums of two ridge functions with bounded and continuous summands in the spaces of bounded and continuous multivariate functions respectively. In the first case, we give an example which shows that the corresponding ... | [
"math.CA"
] | null | [
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{
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"name": "Vugar [\"E.\"] Ismailov",
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] | null |
3204883 | 0708.3900 | 2007-08-29 | Inference from correlated patterns: a unified theory for perceptron learning and linear vector channels | A framework to analyze inference performance in densely connected single-layer feed-forward networks is developed for situations where a given data set is composed of correlated patterns. The framework is based on the assumption that the left and right singular value bases of the given pattern matrix are generated inde... | [
"cs.IT",
"cond-mat.dis-nn",
"math.IT"
] | null | [
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] | null | null | null |
15261400 | 0708.4025 | 2007-08-29 | Black holes as mirrors: quantum information in random subsystems | We study information retrieval from evaporating black holes, assuming that the internal dynamics of a black hole is unitary and rapidly mixing, and assuming that the retriever has unlimited control over the emitted Hawking radiation. If the evaporation of the black hole has already proceeded past the "half-way" point, ... | [
"hep-th",
"gr-qc",
"quant-ph"
] | null | [
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"target.key_reference"
] | null | null | null |
47043747 | 0708.4219 | 2007-08-30 | Secure Transmission with Multiple Antennas: The MISOME Wiretap Channel | The role of multiple antennas for secure communication is investigated within the framework of Wyner's wiretap channel. We characterize the secrecy capacity in terms of generalized eigenvalues when the sender and eavesdropper have multiple antennas, the intended receiver has a single antenna, and the channel matrices a... | [
"cs.IT",
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] | null | [
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{
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"author_id": "g wornell_1",
"name": "Gregory [\"W.\"] Wornell",
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895789 | 0708.4226 | 2007-08-30 | Effects of Dust Geometry in Lyman Alpha Galaxies at z = 4.4 | Equivalent widths (EWs) observed in high-redshift Lyman alpha galaxies could be stronger than the EW intrinsic to the stellar population if dust is present residing in clumps in the inter-stellar medium (ISM). In this scenario, continuum photons could be extinguished while the Lyman alpha photons would be resonantly sc... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118075693 | 0708.4178 | 2007-08-30 | Relationship between degree of efficiency and prediction in stock price changes | This study investigates empirically whether the degree of stock market efficiency is related to the prediction power of future price change using the indices of twenty seven stock markets. Efficiency refers to weak-form efficient market hypothesis (EMH) in terms of the information of past price changes. The prediction ... | [
"q-fin.ST",
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14187222 | 0708.4228 | 2007-08-30 | Opacity Build-up in Impulsive Relativistic Sources | Opacity effects in relativistic sources of high-energy gamma-rays, such as gamma-ray bursts (GRBs) or Blazars, can probe the Lorentz factor of the outflow and the distance of the emission site from the source, and thus help constrain the composition of the outflow (protons, pairs, magnetic field) and the emission mecha... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1588011 | 0708.4233 | 2007-08-30 | WHIZARD: Simulating Multi-Particle Processes at LHC and ILC | We describe the universal Monte-Carlo event generator WHIZARD. The program automatically computes complete tree-level matrix elements, integrates them over phase space, evaluates distributions of observables, and generates unweighted event samples that can be used directly in detector simulation. There is no principal ... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15233110 | 0708.4185 | 2007-08-30 | A Submillimeter View of Circumstellar Dust Disks in $\rho$ Ophiuchus | We present new multiwavelength submillimeter continuum measurements of the circumstellar dust around 48 young stars in the $\rho$ Ophiuchus dark clouds. Supplemented with previous 1.3 mm observations of an additional 99 objects from the literature, the statistical distributions of disk masses and submillimeter colors a... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7150400 | 0708.4149 | 2007-08-30 | On the complexity of nonnegative matrix factorization | Nonnegative matrix factorization (NMF) has become a prominent technique for the analysis of image databases, text databases and other information retrieval and clustering applications. In this report, we define an exact version of NMF. Then we establish several results about exact NMF: (1) that it is equivalent to a pr... | [
"cs.NA",
"cs.IR"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
15135359 | 0708.4300 | 2007-08-31 | Limits on the 2.2 microns contrast ratio of the close orbiting planet HD 189733b | We obtained 238 spectra of the close orbiting extrasolar giant planet HD 189733b with resolution R ~ 15,000 during one night of observations with the near infrared spectrograph, NIRSPEC, at the Keck II Telescope. We have searched for planetary absorption signatures in the 2.0 - 2.4 micron region where H_2O and CO are e... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13197894 | 0708.4408 | 2007-08-31 | Moments and distribution of the local times of a transient random walk on $\Z^d$ | Consider an arbitrary transient random walk on $\Z^d$ with $d\in\N$. Pick $\alpha\in[0,\infty)$ and let $L_n(\alpha)$ be the spatial sum of the $\alpha$-th power of the $n$-step local times of the walk. Hence, $L_n(0)$ is the range, $L_n(1)=n+1$, and for integers $\alpha$, $L_n(\alpha)$ is the number of the $\alpha$-fo... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
120313719 | 0708.4335 | 2007-08-31 | Random wave functions and percolation | Recently it was conjectured that nodal domains of random wave functions are adequately described by critical percolation theory. In this paper we strengthen this conjecture in two respects. First, we show that, though wave function correlations decay slowly, a careful use of Harris' criterion confirms that these correl... | [
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119224967 | 0709.0027 | 2007-09-01 | Robustness of entangled states that are positive under partial transposition | We study robustness of bipartite entangled states that are positive under partial transposition (PPT). It is shown that almost all PPT entangled states are unconditionally robust, in the sense, both inseparability and positivity are preserved under sufficiently small perturbations in its immediate neighborhood. Such un... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s bandyopadhyay_6",
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"author_id": "s ghosh_71",
"name": "Sibasish Ghosh",
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7065101 | 0709.0109 | 2007-09-02 | Local convergence for alternating and averaged nonconvex projections | The idea of a finite collection of closed sets having "strongly regular intersection" at a given point is crucial in variational analysis. We show that this central theoretical tool also has striking algorithmic consequences. Specifically, we consider the case of two sets, one of which we assume to be suitably "regular... | [
"math.OC",
"math.NA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10308643 | 0709.0145 | 2007-09-02 | Estimating Random Variables from Random Sparse Observations | Let X_1,...., X_n be a collection of iid discrete random variables, and Y_1,..., Y_m a set of noisy observations of such variables. Assume each observation Y_a to be a random function of some a random subset of the X_i's, and consider the conditional distribution of X_i given the observations, namely \mu_i(x_i)\equiv\p... | [
"cs.IT",
"math.IT",
"math.PR"
] | null | [
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5603313 | 0709.0303 | 2007-09-03 | Navigability of Complex Networks | Routing information through networks is a universal phenomenon in both natural and manmade complex systems. When each node has full knowledge of the global network connectivity, finding short communication paths is merely a matter of distributed computation. However, in many real networks nodes communicate efficiently ... | [
"physics.soc-ph",
"cond-mat.dis-nn",
"cs.NI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2047818 | 0709.0217 | 2007-09-03 | Mobility promotes and jeopardizes biodiversity in rock-paper-scissors games | Biodiversity is essential to the viability of ecological systems. Species diversity in ecosystems is promoted by cyclic, non-hierarchical interactions among competing populations. Such non-transitive relations lead to an evolution with central features represented by the `rock-paper-scissors' game, where rock crushes s... | [
"q-bio.PE",
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"physics.bio-ph"
] | null | [
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] | null | null | null |
19026260 | 0709.0258 | 2007-09-03 | Networks of Polynomial Pieces with Application to the Analysis of Point Clouds and Images | We consider Holder smoothness classes of surfaces for which we construct piecewise polynomial approximation networks, which are graphs with polynomial pieces as nodes and edges between polynomial pieces that are in `good continuation' of each other. Little known to the community, a similar construction was used by Kolm... | [
"stat.ME"
] | null | [
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{
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{
"author_id": "e arias-castro_1",
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"author_id": "b efros_0",
"name": "Boris Efros",
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1760596 | 0709.0159 | 2007-09-03 | An empirical behavioral model of liquidity and volatility | We develop a behavioral model for liquidity and volatility based on empirical regularities in trading order flow in the London Stock Exchange. This can be viewed as a very simple agent based model in which all components of the model are validated against real data. Our empirical studies of order flow uncover several i... | [
"q-fin.ST",
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16676760 | 0709.0281 | 2007-09-03 | Detrended Cross-Correlation Analysis: A New Method for Analyzing Two Non-stationary Time Series | Here we propose a method, based on detrended covariance which we call detrended cross-correlation analysis (DXA), to investigate power-law cross-correlations between different simultaneously-recorded time series in the presence of non-stationarity. We illustrate the method by selected examples from physics, physiology,... | [
"q-fin.ST",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1284101 | 0709.0204 | 2007-09-03 | Capacity constraints and the inevitability of mediators in adword auctions | One natural constraint in the sponsored search advertising framework arises from the fact that there is a limit on the number of available slots, especially for the popular keywords, and as a result, a significant pool of advertisers are left out. We study the emergence of diversification in the adword market triggered... | [
"cs.GT"
] | null | [
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{
"author_id": "s singh_6",
"name": "Sudhir [\"Kumar\"] Singh",
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{
"author_id": "v roychowdhury_1",
"name": "Vwani [\"P.\"] Roychowdhury",
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60640597 | 0709.0172 | 2007-09-03 | Improving the consensus performance via predictive mechanisms | Considering some predictive mechanisms, we show that ultrafast average-consensus can be achieved in networks of interconnected agents. More specifically, by predicting the dynamics of the network several steps ahead and using this information in the design of the consensus protocol of each agent, drastic improvements c... | [
"physics.data-an"
] | null | [
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{
"author_id": "h zhang_184",
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{
"author_id": "g stan_1",
"name": "Guy-Bart [\"V.\"] Stan",
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9712174 | 0709.0529 | 2007-09-04 | The evolution of massive black hole seeds | We investigate the evolution of high redshift seed black hole masses at late times and their observational signatures. The massive black hole seeds studied here form at extremely high redshifts from the direct collapse of pre-galactic gas discs. Populating dark matter halos with seeds formed in this way, we follow the ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15496725 | 0709.0506 | 2007-09-04 | The Mass Of The Coma Cluster From Weak Lensing In The Sloan Digital Sky Survey | We present a weak lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey (SDSS) Data Release Five. Complete imaging of a ~ 200 square degree region is used to measure the tangential shear of this cluster. The shear is fit to an NFW model and we find a virial radius of r_{200}=1.99_{-0.22}^{+0.21}h^{-1}... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8402603 | 0709.0370 | 2007-09-04 | An Integrated Simulation System for Human Factors Study | It has been reported that virtual reality can be a useful tool for ergonomics study. The proposed integrated simulation system aims at measuring operator's performance in an interactive way for 2D control panel design. By incorporating some sophisticated virtual reality hardware/software, the system allows natural huma... | [
"cs.HC"
] | null | [
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] | [] | [
{
"author_id": "y wang_824",
"name": "Y. Wang",
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"author_id": "w zhang_109",
"name": "Wei Zhang",
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12738335 | 0709.0446 | 2007-09-04 | Logic Column 19: Symbolic Model Checking for Temporal-Epistemic Logics | This article surveys some of the recent work in verification of temporal epistemic logic via symbolic model checking, focusing on OBDD-based and SAT-based approaches for epistemic logics built on discrete and real-time branching time temporal logics. | [
"cs.LO"
] | null | [
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{
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{
"author_id": "a lomuscio_1",
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"author_id": "w penczek_1",
"name": "Wojciech Penczek",
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"num_papers": ... | null |
5966071 | 0709.0293 | 2007-09-04 | The Effective Field Theory of Inflation | We study the effective field theory of inflation, i.e. the most general theory describing the fluctuations around a quasi de Sitter background, in the case of single field models. The scalar mode can be eaten by the metric by going to unitary gauge. In this gauge, the most general theory is built with the lowest dimens... | [
"hep-th",
"astro-ph",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1074499 | 0709.0535 | 2007-09-04 | Constructing packings in Grassmannian manifolds via alternating projection | This paper describes a numerical method for finding good packings in Grassmannian manifolds equipped with various metrics. This investigation also encompasses packing in projective spaces. In each case, producing a good packing is equivalent to constructing a matrix that has certain structural and spectral properties. ... | [
"math.MG"
] | null | [
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{
"author_id": "i dhillon_1",
"name": "Inderjit [\"S.\"] Dhillon",
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{
"author_id": "r heath_1",
"name": "Robert [\"W.\"] Heath",
"publication_history": null,
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"nu... | null |
15085686 | 0709.0394 | 2007-09-04 | Spatial variation of total column ozone on a global scale | The spatial dependence of total column ozone varies strongly with latitude, so that homogeneous models (invariant to all rotations) are clearly unsuitable. However, an assumption of axial symmetry, which means that the process model is invariant to rotations about the Earth's axis, is much more plausible and considerab... | [
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
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56424 | 0709.0435 | 2007-09-04 | A Generic Approach to Coalition Formation | We propose an abstract approach to coalition formation that focuses on simple merge and split rules transforming partitions of a group of players. We identify conditions under which every iteration of these rules yields a unique partition. The main conceptual tool is a specific notion of a stable partition. The results... | [
"cs.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7210011 | 0709.0421 | 2007-09-04 | Probabilistic projections of HIV prevalence using Bayesian melding | The Joint United Nations Programme on HIV/AIDS (UNAIDS) has developed the Estimation and Projection Package (EPP) for making national estimates and short-term projections of HIV prevalence based on observed prevalence trends at antenatal clinics. Assessing the uncertainty about its estimates and projections is importan... | [
"stat.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118552004 | 0709.0629 | 2007-09-05 | Antisymmetric rank--2 tensor unparticle physics | We present the phenomenology of antisymmetric rank-2 tensor unparticle operator ${\cal O}_{\cal U,A}^{\mu\nu}$ with scaling dimension $d_{\cal U}$. We consider the physical effects of operator $O_{\cal U,A}^{\mu\nu}$ in $Z^0$ boson invisible decays $Z^0 \to {\cal U}$, $Z^0 \to b \bar{b}$ channel, the electroweak precis... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t hur_2",
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{
"author_id": "p ko_2",
"name": "Pyungwon Ko",
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43386043 | 0709.0528 | 2007-09-05 | Effect of Local Minima on Adiabatic Quantum Optimization | We present a perturbative method to estimate the spectral gap for adiabatic quantum optimization, based on the structure of the energy levels in the problem Hamiltonian. We show that for problems that have exponentially large number of local minima close to the global minimum, the gap becomes exponentially small making... | [
"quant-ph",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17986768 | 0709.0710 | 2007-09-05 | Combinatorically Prescribed Packings and Applications to Conformal and Quasiconformal Maps | The Andreev-Thurston Circle Packing Theorem is generalized to packings of convex bodies in planar simply connected domains. This turns out to be a useful tool for constructing conformal and quasiconformal mappings with interesting geometric properties. We attempt to illustrate this with a few results about uniformizati... | [
"math.CV",
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"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19195943 | 0709.0736 | 2007-09-05 | On the Emergence of Unstable Modes in an Expanding Domain for Energy-Conserving Wave Equations | Motivated by recent work on instabilities in expanding domains in reaction-diffusion settings, we propose an analog of such mechanisms in energy-conserving wave equations. In particular, we consider a nonlinear Schr{\"o}dinger equation in a finite domain and show how the expansion or contraction of the domain, under ap... | [
"nlin.PS"
] | null | [
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{
"author_id": "k law_1",
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"author_id": "p kevrekidis_2",
"name": "Panayotis [\"G.\"] Kevrekidis",
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"h_index": null,... | null |
12948174 | 0709.0626 | 2007-09-05 | Consistency and robustness of kernel-based regression in convex risk minimization | We investigate statistical properties for a broad class of modern kernel-based regression (KBR) methods. These kernel methods were developed during the last decade and are inspired by convex risk minimization in infinite-dimensional Hilbert spaces. One leading example is support vector regression. We first describe the... | [
"math.ST",
"stat.TH"
] | null | [
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"target.key_reference"
] | null | null | null |
11210560 | 0709.0766 | 2007-09-06 | Search for Gravitational Waves Associated with 39 Gamma-Ray Bursts Using Data from the Second, Third, and Fourth LIGO Runs | We present the results of a search for short-duration gravitational-wave bursts associated with 39 gamma-ray bursts (GRBs) detected by gamma-ray satellite experiments during LIGO's S2, S3, and S4 science runs. The search involves calculating the crosscorrelation between two interferometer data streams surrounding the G... | [
"gr-qc",
"astro-ph"
] | null | [
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{
"author_id": "b abbott_2",
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"author_id": "r abbott_2",
"name": "Richard Abbott",
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"num_papers": nul... | null |
10364878 | 0709.0833 | 2007-09-06 | An Introduction to Galactic Chemical Evolution | The formalism of the simple model of galactic chemical evolution (GCE) and its main ingredients (stellar properties, initial mass function, star formation rate and gas flows) are presented in this tutorial. It is stressed that GCE is not (yet) an astrophysical theory, but it merely provides a framework in which the lar... | [
"astro-ph"
] | null | [
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] | null | null | null |
14124152 | 0709.0888 | 2007-09-06 | Additive isotone regression | This paper is about optimal estimation of the additive components of a nonparametric, additive isotone regression model. It is shown that asymptotically up to first order, each additive component can be estimated as well as it could be by a least squares estimator if the other components were known. The algorithm for t... | [
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{
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] | [
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{
"author_id": "k yu_16",
"name": "Kyusang Yu",
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611674 | 0709.0887 | 2007-09-06 | Almost Euclidean subspaces of \ell_1^N via expander codes | We give an explicit (in particular, deterministic polynomial time) construction of subspaces X of R^N of dimension (1-o(1))N such that for every element x in X, |x|_1 and N^{1/2} |x|_2 are equivalent up to a factor of (log N)^{log log log N}. If we are allowed to use N^{o(1)} random bits, this factor can be improved to... | [
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] | null | [
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{
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{
"author_id": "j lee_4",
"name": "James R. Lee",
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"num_papers": nul... | null |
118527389 | 0712.1431 | 2007-09-06 | Answer to Comment on "Ultrametricity in the Edwards-Anderson Model" arXiv:0709.0894 | This reply shows that the argument presented in the comment by Jorg and Krzakala (cond mat 0709.0894) cannot be used to weaken the results presented in our paper on ultrametricity evidence in the 3d Edwards Anderson model (PRL 99, 057206, 2007; cond-mat/0607376). Our work in fact was mainly based on identifying the sca... | [
"cond-mat.dis-nn",
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] | null | [
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{
"author_id": "t jorg_1",
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"name": "Florent Krzakala",
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... | null |
5650871 | 0709.1163 | 2007-09-07 | The electronic properties of graphene | This article reviews the basic theoretical aspects of graphene, a one atom thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations. The Dirac electrons can be controlled by application of external electric and magnetic fields, or by altering sample geometry and/or topology. We show tha... | [
"cond-mat.other"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14099849 | 0709.1164 | 2007-09-07 | The Nature of the Dense Core Population in the Pipe Nebula: Thermal Cores Under Pressure | In this paper we present the results of a systematic investigation of an entire population of starless dust cores within a single molecular cloud. Analysis of extinction data shows the cores to be dense objects characterized by a narrow range of density. Analysis of C18O and NH3 molecular-line observations reveals very... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8932454 | 0709.1027 | 2007-09-07 | A parton shower algorithm based on Catani-Seymour dipole factorisation | In this publication the implementation of a new parton shower model based on the Catani-Seymour dipole factorisation, as first suggested by Z. Nagy and D. E. Soper, is discussed. First results obtained with the new algorithm are compared with experimental data. | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1467467 | 0709.1023 | 2007-09-07 | Constraint optimization and landscapes | We describe an effective landscape introduced in [1] for the analysis of Constraint Satisfaction problems, such as Sphere Packing, K-SAT and Graph Coloring. This geometric construction reexpresses these problems in the more familiar terms of optimization in rugged energy landscapes. In particular, it allows one to unde... | [
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{
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"author_id": "j kurchan_1",
"name": "Jorge Kurchan",
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12329459 | 0709.1013 | 2007-09-07 | Empirical processes indexed by estimated functions | We consider the convergence of empirical processes indexed by functions that depend on an estimated parameter $\eta$ and give several alternative conditions under which the ``estimated parameter'' $\eta_n$ can be replaced by its natural limit $\eta_0$ uniformly in some other indexing set $\Theta$. In particular we reco... | [
"math.ST",
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] | null | [
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] | null | null | null |
27770269 | 0709.1001 | 2007-09-07 | Tunable high-energy ion source via oblique laser pulse incidence on a double-layer target | The laser-driven acceleration of high quality proton beams from a double-layer target, comprised of a high-Z ion layer and a thin disk of hydrogen, is investigated with three-dimensional particle-in-cell simulations in the case of oblique incidence of a laser pulse. It is shown that the proton beam energy reaches its m... | [
"physics.plasm-ph",
"physics.acc-ph"
] | null | [
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{
"author_id": "t morita_2",
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{
"author_id": "t esirkepov_1",
"name": "Timur Zh. Esirkepov",
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"h_index": null,
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12372886 | 0709.1074 | 2007-09-07 | Johnson Type Bounds on Constant Dimension Codes | Very recently, an operator channel was defined by Koetter and Kschischang when they studied random network coding. They also introduced constant dimension codes and demonstrated that these codes can be employed to correct errors and/or erasures over the operator channel. Constant dimension codes are equivalent to the s... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119280537 | 0709.1007 | 2007-09-07 | Reanalysis of the $e^+e^-\to\eta\gamma$ reaction cross section | In the experiment with the SND detector at the VEPP-2M $e^+e^-$ collider measuring the $e^+e^-\to \eta\gamma$ cross section in the energy range $0.6<\sqrt{s}<1.38 \mathrm{GeV}$ the reanalysis of data is performed. The goal is to improve the accuracy of the previous results by analysing ambiguities in the approximation ... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18196646 | 0709.1070 | 2007-09-07 | A Synthetical Weights' Dynamic Mechanism for Weighted Networks | We propose a synthetical weights' dynamic mechanism for weighted networks which takes into account the influences of strengths of nodes, weights of links and incoming new vertices. Strength/Weight preferential strategies are used in these weights' dynamic mechanisms, which depict the evolving strategies of many real-wo... | [
"physics.soc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l fang_3",
"name": "Lujun Fang",
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{
"author_id": "z zhang_150",
"name": "Zhongzhi Zhang",
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"h_index": null,
"num_papers": null,
"n... | null |
8662228 | 0709.1058 | 2007-09-07 | Joint Bayesian component separation and CMB power spectrum estimation | We describe and implement an exact, flexible, and computationally efficient algorithm for joint component separation and CMB power spectrum estimation, building on a Gibbs sampling framework. Two essential new features are 1) conditional sampling of foreground spectral parameters, and 2) joint sampling of all amplitude... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
47035961 | 0709.1227 | 2007-09-08 | Efficient Algorithms for Node Disjoint Subgraph Homeomorphism Determination | Recently, great efforts have been dedicated to researches on the management of large scale graph based data such as WWW, social networks, biological networks. In the study of graph based data management, node disjoint subgraph homeomorphism relation between graphs is more suitable than (sub)graph isomorphism in many ca... | [
"cs.DS",
"cs.DB"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y xiao_73",
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{
"author_id": "w wu_16",
"name": "Wentao Wu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cit... | null |
119157784 | 1012.0103 | 2007-09-08 | Electroweak symmetry breaking and cold dark matter from strongly interacting hidden sector | We consider a hidden sector with new vectorlike confining gauge theories like QCD. Then a scale $\Lambda_H$ would be generated in the hidden sector by dimensional transmutation, and chiral symmetry breaking occurs in the hidden sector. Then this scale $\Lambda_H$ can play a role of the SM Higgs mass parameter, triggeri... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t hur_2",
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{
"author_id": "d jung_5",
"name": "Dong-Won Jung",
"publication_history": null,
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22249707 | 0709.1274 | 2007-09-09 | Valley contrasting physics in graphene: magnetic moment and topological transport | We investigate physical properties that can be used to distinguish the valley degree of freedom in systems where inversion symmetry is broken, using graphene systems as examples. We show that the pseudospin associated with the valley index of carriers has an intrinsic magnetic moment, in close analogy with the Bohr mag... | [
"cond-mat.mtrl-sci",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3385858 | 0709.1269 | 2007-09-09 | A criterion for the half-plane property | We establish a convenient necessary and sufficient condition for a multiaffine real polynomial to be stable, and use it to verify that the half-plane property holds for seven small matroids that resisted the efforts of Choe, Oxley, Sokal, and Wagner [5]. | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9734329 | 0709.1159 | 2007-09-09 | Cross-correlation Weak Lensing of SDSS galaxy Clusters II: Cluster Density Profiles and the Mass--Richness Relation | We interpret and model the statistical weak lensing measurements around 130,000 groups and clusters of galaxies in the Sloan Digital Sky Survey presented by Sheldon et al. 2007 (Paper I). We present non-parametric inversions of the 2D shear profiles to the mean 3D cluster density and mass profiles in bins of both optic... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15470765 | 0709.1359 | 2007-09-10 | A robust morphological classification of high-redshift galaxies using support vector machines on seeing limited images. I Method description | We present a new non-parametric method to quantify morphologies of galaxies based on a particular family of learning machines called support vector machines. The method, that can be seen as a generalization of the classical CAS classification but with an unlimited number of dimensions and non-linear boundaries between ... | [
"astro-ph"
] | null | [
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{
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{
"corpus_id": "18292988",
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},
{
"corpus_id": "17816052",
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] | [
{
"author_id": "m huertas-company_1",
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{
"author_id": "l tasca_1",
"name": "Lidia [\"A.\",\"M.\"] Tasca",
"publication_history": null,
"h_index": null... | null |
119125843 | 0709.1391 | 2007-09-10 | Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints | We discuss observational consequences of f(R) dark energy scenarios that satisfy local gravity constraints (LGC) as well as conditions of the cosmological viability. The model we study is given by m(r)=C(-r-1)^p (C>0, p>1) with m=Rf_{,RR}/f_{,R} and r=-Rf_{,R}/f, which cover viable f(R) models proposed so far in a high... | [
"astro-ph",
"gr-qc",
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16068462 | 0709.1304 | 2007-09-10 | A design principle for improved 3D AC electro-osmotic pumps | Three-dimensional (3D) AC electro-osmotic (ACEO) pumps have recently been developed that are much faster and more robust than previous planar designs. The basic idea is to create a ``fluid conveyor belt'' by placing opposing ACEO slip velocities at different heights. Current designs involve electrodes with electroplate... | [
"physics.flu-dyn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d burch_1",
"name": "Damian [\"N.\"] Burch",
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{
"author_id": "m bazant_1",
"name": "Martin [\"Z.\"] Bazant",
"publication_history": null,
"h_index": null,
"num_pa... | null |
5578702 | 0709.1425 | 2007-09-10 | A higher order model for image restoration: the one dimensional case | The one-dimensional version of the higher order total variation-based model for image restoration proposed by Chan, Marquina, and Mulet in [4] is analyzed. A suitable functional framework in which the minimization problem is well posed is being proposed and it is proved analytically that the higher order regularizing t... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3240386 | 0709.1395 | 2007-09-10 | Statistical stability of equilibrium states for interval maps | We consider families of multimodal interval maps with polynomial growth of the derivative along the critical orbits. For these maps Bruin and Todd have shown the existence and uniqueness of equilibrium states for the potential $\phi_t:x\mapsto-t\log|Df(x)|$, for $t$ close to 1. We show that these equilibrium states var... | [
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55697633 | 0709.1503 | 2007-09-10 | A Scintillator Purification System for the Borexino Solar Neutrino Detector | Purification of the 278 tons of liquid scintillator and 889 tons of buffer shielding for the Borexino solar neutrino detector was performed with a system that combined distillation, water extraction, gas stripping and filtration. The purification of the scintillator achieved unprecedented low backgrounds for the large ... | [
"physics.ins-det"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15678415 | 0709.1192 | 2007-09-10 | K-H_2 Quasi-molecular absorption detected in the T-dwarf epsilon Indi Ba | T-type dwarfs present a broad and shallow absorption feature centred around 6950 A in the blue wing of the K doublet at 0.77 micron which resembles in depth and shape the satellite absorption predicted by detailed collisional broadening profiles. In our previous work, the predicted line satellite position was however s... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1500830 | 0709.1516 | 2007-09-10 | On Universal Prediction and Bayesian Confirmation | The Bayesian framework is a well-studied and successful framework for inductive reasoning, which includes hypothesis testing and confirmation, parameter estimation, sequence prediction, classification, and regression. But standard statistical guidelines for choosing the model class and prior are not always available or... | [
"math.ST",
"cs.IT",
"cs.LG",
"math.IT",
"stat.ML",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118464103 | 0709.1637 | 2007-09-11 | Photon propagator for axion electrodynamics | The axion modified electrodynamics is usually used as a model for description of possible violation of Lorentz invariance in field theory. The low-energy manifestation of Lorentz violation can hopefully be observed in experiments with the electromagnetic waves. It justifies the importance of study how a small axion add... | [
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y itin_1",
"name": "Y. Itin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
88512035 | 0709.1721 | 2007-09-11 | Parallel marginalization Monte Carlo with applications to conditional path sampling | Monte Carlo sampling methods often suffer from long correlation times. Consequently, these methods must be run for many steps to generate an independent sample. In this paper a method is proposed to overcome this difficulty. The method utilizes information from rapidly equilibrating coarse Markov chains that sample mar... | [
"stat.CO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j weare_1",
"name": "Jonathan Weare",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
2529543 | 0709.1563 | 2007-09-11 | Blind Multi-Band Signal Reconstruction: Compressed Sensing for Analog Signals | We address the problem of reconstructing a multi-band signal from its sub-Nyquist point-wise samples. To date, all reconstruction methods proposed for this class of signals assumed knowledge of the band locations. In this paper, we develop a non-linear blind perfect reconstruction scheme for multi-band signals which do... | [
"nlin.CG",
"nlin.SI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6592435 | 0709.1726 | 2007-09-11 | A Haar-like Construction for the Ornstein Uhlenbeck Process | The classical Haar construction of Brownian motion uses a binary tree of triangular wedge-shaped functions. This basis has compactness properties which make it especially suited for certain classes of numerical algorithms. We present a similar basis for the Ornstein-Uhlenbeck process, in which the basis elements approa... | [
"math.PR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t taillefumier_1",
"name": "Thibaud Taillefumier",
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},
{
"author_id": "m magnasco_1",
"name": "Marcelo [\"O.\"] Magnasco",
"publication_history": null,
"h_index": null,
... | null |
118559229 | 0709.1729 | 2007-09-11 | Phase transition of computational power in the resource states for one-way quantum computation | We study how heralded qubit losses during the preparation of a two-dimensional cluster state, a universal resource state for one-way quantum computation, affect its computational power. Above the percolation threshold we present a polynomial-time algorithm that concentrates a universal cluster state, using resources th... | [
"quant-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14181540 | 0709.1598 | 2007-09-11 | Linear convergence of iterative soft-thresholding | In this article a unified approach to iterative soft-thresholding algorithms for the solution of linear operator equations in infinite dimensional Hilbert spaces is presented. We formulate the algorithm in the framework of generalized gradient methods and present a new convergence analysis. As main result we show that ... | [
"math.FA",
"math.NA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
27245793 | 0709.1718 | 2007-09-11 | A short-loop algorithm for quantum Monte Carlo simulations | We present an algorithmic framework for a variant of the quantum Monte Carlo operator-loop algorithm, where non-local cluster updates are constructed in a way that makes each individual loop smaller. The algorithm is designed to increase simulation efficiency in cases where conventional loops become very large, do not ... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn",
"cond-mat.mes-hall",
"cond-mat.mtrl-sci",
"cond-mat.other",
"cond-mat.soft"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y kao_3",
"name": "Ying-Jer Kao",
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},
{
"author_id": "r melko_1",
"name": "Roger [\"G.\"] Melko",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
139744 | 0709.1692 | 2007-09-11 | Precision photometric redshift calibration for galaxy-galaxy weak lensing | Accurate photometric redshifts are among the key requirements for precision weak lensing measurements. Both the large size of the Sloan Digital Sky Survey (SDSS) and the existence of large spectroscopic redshift samples that are flux-limited beyond its depth have made it the optimal data source for developing methods t... | [
"astro-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "27699695",
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},
{
"corpus_id": "29846630",
"num_citations": null
},
{
"corpus_id": "2764509",
"num_citations": null
},
{
"corpus_id": "14158867",
"num_citations": null
}
] | [
{
"author_id": "r mandelbaum_1",
"name": "Rachel Mandelbaum",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
88518051 | 0709.1648 | 2007-09-11 | Asymptotics: Particles, Processes and Inverse Problems. Festschrift for Piet Groeneboom | In September 2006, Piet Groeneboom officially retired as professor of statistics at Delft University of Technology and the Vrije Universiteit in Amsterdam. He did so by delivering his farewell lecture `Summa Cogitatio' ([42] in Piet's publication list) in the Aula of the university in Delft. To celebrate Piet's impress... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9741147 | 0709.1735 | 2007-09-11 | CGRaBS: An All-Sky Survey of Gamma-Ray Blazar Candidates | We describe a uniform all-sky survey of bright blazars, selected primarily by their flat radio spectra, that is designed to provide a large catalog of likely gamma-ray AGN. The defined sample has 1625 targets with radio and X-ray properties similar to those of the EGRET blazars, spread uniformly across the |b| > 10 deg... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1424455 | 0709.1667 | 2007-09-11 | Solving Constraint Satisfaction Problems through Belief Propagation-guided decimation | Message passing algorithms have proved surprisingly successful in solving hard constraint satisfaction problems on sparse random graphs. In such applications, variables are fixed sequentially to satisfy the constraints. Message passing is run after each step. Its outcome provides an heuristic to make choices at next st... | [
"cs.AI",
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12764246 | 0709.1926 | 2007-09-12 | Distances to Galactic high-velocity clouds. I. Cohen Stream, complex GCP, cloud g1 | The high- and intermediate-velocity interstellar clouds (HVCs/IVCs) are tracers of energetic processes in and around the Milky Way. Clouds with near-solar metallicity about one kpc above the disk trace the circulation of material between disk and halo (the Galactic Fountain). The Magellanic Stream consists of gas tidal... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9828770 | 0709.1858 | 2007-09-12 | Adaptive Coevolutionary Networks: A Review | Adaptive networks appear in many biological applications. They combine topological evolution of the network with dynamics in the network nodes. Recently, the dynamics of adaptive networks has been investigated in a number of parallel studies from different fields, ranging from genomics to game theory. Here we review th... | [
"physics.soc-ph",
"cond-mat.stat-mech",
"q-bio.PE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1112211 | 0709.1941 | 2007-09-12 | Speeding up Simplification of Polygonal Curves using Nested Approximations | We develop a multiresolution approach to the problem of polygonal curve approximation. We show theoretically and experimentally that, if the simplification algorithm A used between any two successive levels of resolution satisfies some conditions, the multiresolution algorithm MR will have a complexity lower than the c... | [
"cs.CG"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "p marteau_1",
"name": "Pierre-François Marteau",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g ménier_1",
"name": "Gildas Ménier",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
1039305 | 0709.1841 | 2007-09-12 | UV and optical emission lines from the z=2.6 radio galaxy 0828+193: spatially resolved measurements | We present an investigation into the spatial variation of the rest-frame UV and optical line and continuum emission along the radio axis of the z=2.6 radio galaxy 0828+193, using long-slit spectra from the Keck II and Subaru telescopes. Line brightnesses, line ratios and electron temperatures are examined, and their re... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2048695 | 0709.1916 | 2007-09-12 | Interaction Ruling Animal Collective Behaviour Depends on Topological rather than Metric Distance: Evidence from a Field Study | Numerical models indicate that collective animal behaviour may emerge from simple local rules of interaction among the individuals. However, very little is known about the nature of such interaction, so that models and theories mostly rely on aprioristic assumptions. By reconstructing the three-dimensional position of ... | [
"q-bio.PE",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15648248 | 0709.2140 | 2007-09-13 | Entanglement as a Probe of Confinement | We investigate the entanglement entropy in gravity duals of confining large $N_c$ gauge theories using the proposal of arXiv:hep-th/0603001, arXiv:hep-th/0605073. Dividing one of the directions of space into a line segment of length $l$ and its complement, the entanglement entropy between the two subspaces is given by ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8467224 | 0709.2135 | 2007-09-13 | Coupling Superconducting Qubits via a Cavity Bus | Superconducting circuits are promising candidates for constructing quantum bits (qubits) in a quantum computer; single-qubit operations are now routine, and several examples of two qubit interactions and gates having been demonstrated. These experiments show that two nearby qubits can be readily coupled with local inte... | [
"cond-mat.mes-hall",
"cond-mat.supr-con",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5602852 | 0709.2108 | 2007-09-13 | Robustness of community structure in networks | The discovery of community structure is a common challenge in the analysis of network data. Many methods have been proposed for finding community structure, but few have been proposed for determining whether the structure found is statistically significant or whether, conversely, it could have arisen purely as a result... | [
"physics.data-an",
"cond-mat.stat-mech",
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15091155 | 0709.1975 | 2007-09-13 | Universal local parametrizations via heat kernels and eigenfunctions of the Laplacian | We use heat kernels or eigenfunctions of the Laplacian to construct local coordinates on large classes of Euclidean domains and Riemannian manifolds (not necessarily smooth, e.g. with $\mathcal{C}^\alpha$ metric). These coordinates are bi-Lipschitz on embedded balls of the domain or manifold, with distortion constants ... | [
"math.AP",
"math.CA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
839011 | 0709.2003 | 2007-09-13 | On rate optimality for ill-posed inverse problems in econometrics | In this paper, we clarify the relations between the existing sets of regularity conditions for convergence rates of nonparametric indirect regression (NPIR) and nonparametric instrumental variables (NPIV) regression models. We establish minimax risk lower bounds in mean integrated squared error loss for the NPIR and th... | [
"math.ST",
"math.NA",
"stat.AP",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15345525 | 0709.2152 | 2007-09-13 | Heating Hot Atmospheres with Active Galactic Nuclei | High resolution X-ray spectroscopy of the hot gas in galaxy clusters has shown that the gas is not cooling to low temperatures at the predicted rates of hundreds to thousands of solar masses per year. X-ray images have revealed giant cavities and shock fronts in the hot gas that provide a direct and relatively reliable... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1327029 | 0709.2196 | 2007-09-13 | Bregman Voronoi Diagrams: Properties, Algorithms and Applications | The Voronoi diagram of a finite set of objects is a fundamental geometric structure that subdivides the embedding space into regions, each region consisting of the points that are closer to a given object than to the others. We may define many variants of Voronoi diagrams depending on the class of objects, the distance... | [
"cs.CG"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "f nielsen_2",
"name": "Frank Nielsen",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j boissonnat_1",
"name": "Jean-Daniel Boissonnat",
"publication_history": null,
"h_index": null,
"num_pape... | null |
15062811 | 0709.2090 | 2007-09-13 | On the Complexity of Computing Zero-Error and Holevo Capacity of Quantum Channels | One of the main problems in quantum complexity theory is that our understanding of the theory of QMA-completeness is not as rich as its classical analogue, the NP- completeness. In this paper we consider the clique problem in graphs, which is NP- complete, and try to find its quantum analogue. We show that, quantum cli... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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