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88511985
0805.3040
2008-05-20
Higher order influence functions and minimax estimation of nonlinear functionals
We present a theory of point and interval estimation for nonlinear functionals in parametric, semi-, and non-parametric models based on higher order influence functions (Robins (2004), Section 9; Li et al. (2004), Tchetgen et al. (2006), Robins et al. (2007)). Higher order influence functions are higher order U-statist...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5111390
0805.3167
2008-05-20
Smooth analysis of the condition number and the least singular value
Let $\a$ be a complex random variable with mean zero and bounded variance. Let $N_{n}$ be the random matrix of size $n$ whose entries are iid copies of $\a$ and $M$ be a fixed matrix of the same size. The goal of this paper is to give a general estimate for the condition number and least singular value of the matrix $M...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2146698
0805.3164
2008-05-20
To Code or Not To Code in Multi-Hop Relay Channels
Multi-hop relay channels use multiple relay stages, each with multiple relay nodes, to facilitate communication between a source and destination. Previously, distributed space-time coding was used to maximize diversity gain. Assuming a low-rate feedback link from the destination to each relay stage and the source, this...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13064924
0805.3019
2008-05-20
Three months journeying of a Hawaiian monk seal
Hawaiian monk seals (Monachus schauinslandi) are endemic to the Hawaiian Islands and are the most endangered species of marine mammal that lives entirely within the jurisdiction of the United States. The species numbers around 1300 and has been declining owing, among other things, to poor juvenile survival which is evi...
[ "stat.AP", "stat.CO", "stat.ME" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9832901
0805.3034
2008-05-20
Curse-of-dimensionality revisited: Collapse of the particle filter in very large scale systems
It has been widely realized that Monte Carlo methods (approximation via a sample ensemble) may fail in large scale systems. This work offers some theoretical insight into this phenomenon in the context of the particle filter. We demonstrate that the maximum of the weights associated with the sample ensemble converges t...
[ "math.ST", "stat.CO", "stat.ME", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
812860
0805.3217
2008-05-21
Statistical region-based active contours with exponential family observations
In this paper, we focus on statistical region-based active contour models where image features (e.g. intensity) are random variables whose distribution belongs to some parametric family (e.g. exponential) rather than confining ourselves to the special Gaussian case. Using shape derivation tools, our effort focuses on c...
[ "cs.CV" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f lecellier_1", "name": "François Lecellier", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m fadili_1", "name": "Mohamed-Jalal Fadili", "publication_history": null, "h_index": null, "num_pap...
null
18430077
0805.3244
2008-05-21
Risk and resampling under model uncertainty
In statistical exercises where there are several candidate models, the traditional approach is to select one model using some data driven criterion and use that model for estimation, testing and other purposes, ignoring the variability of the model selection process. We discuss some problems associated with this approa...
[ "math.ST", "stat.ME", "stat.TH" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "15478405", "num_citations": null } ]
[ { "author_id": "s chatterjee_10", "name": "Snigdhansu Chatterjee", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n mukhopadhyay_0", "name": "Nitai [\"D.\"] Mukhopadhyay", "publication_history": null, "h_index": ...
null
119186254
0805.3232
2008-05-21
A proof of the Kramers degeneracy of transmission eigenvalues from antisymmetry of the scattering matrix
In time reversal symmetric systems with half integral spins (or more concretely, systems with an antiunitary symmetry that squares to -1 and commutes with the Hamiltonian) the transmission eigenvalues of the scattering matrix come in pairs. We present a proof of this fact that is valid both for even and odd number of m...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15821597
0805.3269
2008-05-21
A hierarchical Bayesian approach for estimating the origin of a mixed population
We propose a hierarchical Bayesian model to estimate the proportional contribution of source populations to a newly founded colony. Samples are derived from the first generation offspring in the colony, but mating may occur preferentially among migrants from the same source population. Genotypes of the newly founded co...
[ "stat.AP", "stat.ME" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f guo_3", "name": "Feng Guo", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d dey_3", "name": "Dipak [\"K.\"] Dey", "publication_history": null, "h_index": null, "num_papers": null, "num_...
null
10520181
0805.3287
2008-05-21
Sharp failure rates for the bootstrap particle filter in high dimensions
We prove that the maximum of the sample importance weights in a high-dimensional Gaussian particle filter converges to unity unless the ensemble size grows exponentially in the system dimension. Our work is motivated by and parallels the derivations of Bengtsson, Bickel and Li (2007); however, we weaken their assumptio...
[ "math.ST", "stat.ME", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5244733
0805.3218
2008-05-21
Region-based active contour with noise and shape priors
In this paper, we propose to combine formally noise and shape priors in region-based active contours. On the one hand, we use the general framework of exponential family as a prior model for noise. On the other hand, translation and scale invariant Legendre moments are considered to incorporate the shape prior (e.g. fi...
[ "cs.CV" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f lecellier_1", "name": "François Lecellier", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s jehan-besson_1", "name": "S. Jehan-Besson", "publication_history": null, "h_index": null, "num_pa...
null
117277914
0805.3243
2008-05-21
Observation of neutrino interactions in the OPERA detector
OPERA is a long baseline neutrino oscillation experiment designed to observe $\nu_{\mu} \to \nu_{\tau}$ oscillations by looking at the appearance of $\nu_{\tau}$'s in an almost pure $\nu_\mu$ beam. The beam is produced at CERN and sent towards the Gran Sasso INFN laboratories where the experiment is running. OPERA star...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a garfagnini_1", "name": "Alberto Garfagnini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c pistillo_1", "name": "Ciro Pistillo", "publication_history": null, "h_index": null, "num_papers"...
null
11859848
0805.3523
2008-05-22
Reliability of Layered Neural Oscillator Networks
We study the reliability of large networks of coupled neural oscillators in response to fluctuating stimuli. Reliability means that a stimulus elicits essentially identical responses upon repeated presentations. We view the problem on two scales: neuronal reliability, which concerns the repeatability of spike times of ...
[ "q-bio.NC", "cond-mat.dis-nn", "nlin.AO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "k lin_36", "name": "Kevin [\"K.\"] Lin", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e shea-brown_1", "name": "Eric Shea-Brown", "publication_history": null, "h_index": null, "num_papers": ...
null
43668737
0805.3509
2008-05-22
A Lattice Model for Colloidal Gels and Glasses
We study a lattice model of attractive colloids. It is exactly solvable on sparse random graphs. As the pressure and temperature are varied it reproduces many characteristic phenomena of liquids, glasses and colloidal systems such as ideal gel formation, liquid-glass phase coexistence, jamming, or the reentrance of the...
[ "cond-mat.soft", "cond-mat.dis-nn", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f krzakala_1", "name": "Florent Krzakala", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m tarzia_1", "name": "Marco Tarzia", "publication_history": null, "h_index": null, "num_papers": null,...
null
15513611
0805.3415
2008-05-22
On Upper-Confidence Bound Policies for Non-Stationary Bandit Problems
Multi-armed bandit problems are considered as a paradigm of the trade-off between exploring the environment to find profitable actions and exploiting what is already known. In the stationary case, the distributions of the rewards do not change in time, Upper-Confidence Bound (UCB) policies have been shown to be rate op...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
115164648
0805.3527
2008-05-22
Deformation-obstruction theory for complexes via Atiyah and Kodaira--Spencer classes
We give a universal approach to the deformation-obstruction theory of objects of the derived category of coherent sheaves over a smooth projective family. We recover and generalise the obstruction class of Lowen and Lieblich, and prove that it is a product of Atiyah and Kodaira--Spencer classes. This allows us to obtai...
[ "math.AG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8893722
0805.3508
2008-05-22
Probabilistic study of the speed of approach to equilibrium for an inelastic Kac model
This paper deals with a one--dimensional model for granular materials, which boils down to an inelastic version of the Kac kinetic equation, with inelasticity parameter $p>0$. In particular, the paper provides bounds for certain distances -- such as specific weighted $\chi$--distances and the Kolmogorov distance -- bet...
[ "math-ph", "math.MP", "math.PR" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "f bassetti_1", "name": "Federico Bassetti", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l ladelli_1", "name": "Lucia Ladelli", "publication_history": null, "h_index": null, "num_papers": nu...
null
17023585
0805.3601
2008-05-23
3D Lyman-alpha radiation transfer. III. Constraints on gas and stellar properties of z~3 Lyman break galaxies (LBG) and implications for high-z LBGs and Lyman-alpha emitters(LAEs)
The Aim of our study is to understand the variety of observed Lyman-alpha (Lya) line profiles and strengths in Lyman Break Galaxies (LBGs) and Lya emitters (LAEs), the physical parameters governing them, and hence deriving constraints on the gas and dust content and stellar populations of these objects. Using our 3D Ly...
[ "astro-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "10701579", "num_citations": null }, { "corpus_id": "17377899", "num_citations": null }, { "corpus_id": "14267836", "num_citations": null }, { "corpus_id": "2106187", "num_citations": null }, { "corpus_id": "9193212", "num_citations": null }, ...
[ { "author_id": "a verhamme_1", "name": "Anne Verhamme", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d schaerer_2", "name": "Daniel Schaerer", "publication_history": null, "h_index": null, "num_papers": nul...
null
36251630
0805.3580
2008-05-23
Constraints on local primordial non-Gaussianity from large scale structure
Recent work has shown that the local non-Gaussianity parameter f_NL induces a scale-dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of peak-background split formalism and show that it only depends on the assumption of universality of mass function, assuming h...
[ "astro-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a slosar_1", "name": "Anže Slosar", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c hirata_1", "name": "Christopher [\"M.\"] Hirata", "publication_history": null, "h_index": null, "num_papers...
null
14856769
0805.3532
2008-05-23
ExoFit: Orbital Parameters of Extra-solar Planets from Radial Velocities
Retrieval of orbital parameters of extrasolar planets poses considerable statistical challenges.Due to sparse sampling, measurement errors, parameters degeneracy and modelling limitations, there are no unique values of basic parameters, such as period and eccentricity. Here, we estimate the orbital parameters from radi...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
19510522
0805.3718
2008-05-23
Anomalous Conductance Oscillations and Half-Metallicity in Atomic Ag-O Chains
Using spin density functional theory we study the electronic and magnetic properties of atomically thin, suspended chains containing silver and oxygen atoms in an alternating sequence. Chains longer than 4 atoms develop a half-metallic ground state implying fully spin polarized charge carriers. The conductances of the ...
[ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m strange_2", "name": "Mikkel Strange", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k thygesen_1", "name": "Kristian [\"Sommer\"] Thygesen", "publication_history": null, "h_index": null, "n...
null
18045718
0805.3600
2008-05-23
Visualization of membrane loss during the shrinkage of giant vesicles under electropulsation
We study the effect of permeabilizing electric fields applied to two different types of giant unilamellar vesicles, the first formed from EggPC lipids and the second formed from DOPC lipids. Experiments on vesicles of both lipid types show a decrease in vesicle radius which is interpreted as being due to lipid loss dur...
[ "cond-mat.soft", "physics.bio-ph", "q-bio.SC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "t portet_1", "name": "Thomas Portet", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "f camps i febrer_0", "name": "Franc Camps i Febrer", "publication_history": null, "h_index": null, "num_pap...
null
13603806
0805.3602
2008-05-23
Marginal Likelihood Integrals for Mixtures of Independence Models
Inference in Bayesian statistics involves the evaluation of marginal likelihood integrals. We present algebraic algorithms for computing such integrals exactly for discrete data of small sample size. Our methods apply to both uniform priors and Dirichlet priors. The underlying statistical models are mixtures of indepen...
[ "stat.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10806174
0805.3824
2008-05-25
On Metrics for Error Correction in Network Coding
The problem of error correction in both coherent and noncoherent network coding is considered under an adversarial model. For coherent network coding, where knowledge of the network topology and network code is assumed at the source and destination nodes, the error correction capability of an (outer) code is succinctly...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14034407
0805.3806
2008-05-25
Hopf Algebroids
This is a preprint version of a chapter for Handbook of Algebra.
[ "math.QA", "math.RA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14436506
0805.3850
2008-05-25
Quantum Structure in Cognition
The broader scope of our investigations is the search for the way in which concepts and their combinations carry and influence meaning and what this implies for human thought. More specifically, we examine the use of the mathematical formalism of quantum mechanics as a modeling instrument and propose a general mathemat...
[ "math-ph", "math.MP", "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17921998
0805.3898
2008-05-26
Pseudogap and time reversal breaking in a holographic superconductor
Classical SU(2) Yang-Mills theory in 3+1 dimensional anti-de Sitter space is known to provide a holographic dual to a 2+1 system that undergoes a superconducting phase transition. We study the electrical conductivity and spectral density of an isotropic superconducting phase. We show that the theory exhibits a pseudoga...
[ "hep-th", "cond-mat.supr-con" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1487392
0805.3757
2008-05-26
Drug absorption through a cell monolayer: a theoretical work on a non-linear three-compartment model
The subject of analysis is a non-linear three-compartment model, widely used in pharmacological absorption studies. It has been transformed into a general form, thus leading automatically to an appropriate approximation. This made the absorption profile accessible and expressions for absorption times, apparent permeabi...
[ "q-bio.OT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n komin_1", "name": "Niko Komin", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r toral_1", "name": "Raúl Toral", "publication_history": null, "h_index": null, "num_papers": null, "num_ci...
null
18576636
0805.3997
2008-05-26
Semi-stable fibration of generic p-rank 0
In this paper, we proved that, for a semi-stable fibration of a proper smooth surface to a proper smooth curve over a filed of positive characteristic, if the p-rank of the generic fiber is 0, then the base change of the fibration by a sufficiently many iterative Frobenius morphism of the base curve violates the semi-p...
[ "math.AG" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j jang_27", "name": "Junkyu Jang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
839177
0905.2936
2008-05-26
The TOTEM Experiment at the LHC
The TOTEM experiment at the LHC is dedicated to the measurement of the total pp cross section and to the study of elastic scattering and of diffractive dissociation processes. TOTEM is here presented with a general overview on the main features of its experimental apparatus and of its physics programme.
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j baechler_1", "name": "Joachim Baechler", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g antchev_1", "name": "Georgy Antchev", "publication_history": null, "h_index": null, "num_papers": nu...
null
115160021
0805.3982
2008-05-26
Generic ordinarity for semi-stable fibration
In this paper, we proved that, for a semi-stable fibration of a proper smooth surface to a proper smooth curve over a field of positive characteristic, if the generic fiber is ordinary, then the semi-positivity theorem holds. As an application, we constrcuted a counterexample to Parshin's conjecture on the Miyaoka-Yau ...
[ "math.AG", "math.NT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j jang_27", "name": "Junkyu Jang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
14544666
0805.3984
2008-05-26
Alignment of the Pixel and SCT Modules for the 2004 ATLAS Combined Test Beam
A small set of final prototypes of the ATLAS Inner Detector silicon tracker (Pixel and SCT) were used to take data during the 2004 Combined Test Beam. Data were collected from runs with beams of different flavour (electrons, pions, muons and photons) with a momentum range of 2 to 180 GeV/c. Four independent methods wer...
[ "physics.ins-det", "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a ahmad_32", "name": "Ashfaq Ahmad", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a ahmad_32", "name": "Ashfaq Ahmad", "publication_history": null, "h_index": null, "num_papers": null, "...
null
7295016
0805.3915
2008-05-26
Photometric Follow-up Observations of the Transiting Neptune-Mass Planet GJ 436b
This paper presents multi-band photometric follow-up observations of the Neptune-mass transiting planet GJ 436b, consisting of 5 new ground-based transit light curves obtained in May 2007. Together with one already published light curve we have at hand a total of 6 light curves, spanning 29 days. The analysis of the da...
[ "astro-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "14564072", "num_citations": null }, { "corpus_id": "5621102", "num_citations": null }, { "corpus_id": "16426029", "num_citations": null }, { "corpus_id": "14043772", "num_citations": null }, { "corpus_id": "14132568", "num_citations": null },...
[ { "author_id": "a shporer_1", "name": "Avi Shporer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t mazeh_1", "name": "Tsevi Mazeh", "publication_history": null, "h_index": null, "num_papers": null, "nu...
null
17363120
0805.4107
2008-05-27
Spiral Walk on Triangular Meshes : Adaptive Replication in Data P2P Networks
We introduce a decentralized replication strategy for peer-to-peer file exchange based on exhaustive exploration of the neighborhood of any node in the network. The replication scheme lets the replicas evenly populate the network mesh, while regulating the total number of replicas at the same time. This is achieved by ...
[ "cs.NI", "cs.DB" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n bonnel_1", "name": "Nicolas Bonnel", "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, ...
null
2871070
0805.4079
2008-05-27
Landau levels and Riemann zeros
The number $N(E)$ of complex zeros of the Riemann zeta function with positive imaginary part less than $E$ is the sum of a `smooth' function $\bar N(E)$ and a `fluctuation'. Berry and Keating have shown that the asymptotic expansion of $\bar N(E)$ counts states of positive energy less than $E$ in a `regularized' semi-c...
[ "math-ph", "cond-mat.mes-hall", "hep-th", "math.MP", "math.NT", "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7121674
0805.4120
2008-05-27
Mixed Volume Techniques for Embeddings of Laman Graphs
Determining the number of embeddings of Laman graph frameworks is an open problem which corresponds to understanding the solutions of the resulting systems of equations. In this paper we investigate the bounds which can be obtained from the viewpoint of Bernstein's Theorem. The focus of the paper is to provide the meth...
[ "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2658421
0805.4247
2008-05-27
Neural network learning of optimal Kalman prediction and control
Although there are many neural network (NN) algorithms for prediction and for control, and although methods for optimal estimation (including filtering and prediction) and for optimal control in linear systems were provided by Kalman in 1960 (with nonlinear extensions since then), there has been, to my knowledge, no NN...
[ "cs.NE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18190389
0805.4184
2008-05-27
An Exploratory Search for z~6 Quasars in the UKIDSS Early Data Release
We conducted an exploratory search for quasars at z~ 6 - 8, using the Early Data Release from United Kingdom Infrared Deep Sky survey (UKIDSS) cross-matched to panoramic optical imagery. High redshift quasar candidates are chosen using multi-color selection in i,z,Y,J,H and K bands. After removal of apparent instrument...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "53679416", "num_citations": null }, { "corpus_id": "14058247", "num_citations": null }, { "corpus_id": "8230616", "num_citations": null }, { "corpus_id": "119339804", "num_citations": null }, { "corpus_id": "1939667", "num_citations": null },...
[ { "author_id": "e glikman_1", "name": "Eilat Glikman", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a eigenbrod_1", "name": "Alexander Eigenbrod", "publication_history": null, "h_index": null, "num_papers":...
null
16588244
0805.4205
2008-05-27
MAMBO Mapping of Spitzer c2d Small Clouds and Cores
AIMS: To study the structure of nearby (< 500 pc) dense starless and star-forming cores with the particular goal to identify and understand evolutionary trends in core properties, and to explore the nature of Very Low Luminosity Objects (< 0.1 L_sun; VeLLOs). METHODS: Using the MAMBO bolometer array, we create maps unu...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2885701
0805.4133
2008-05-27
Poisson Cloning Model for Random Graphs
In the random graph $G(n,p)$ with $pn$ bounded, the degrees of the vertices are almost i.i.d Poisson random variables with mean $\gl:= p(n-1)$. Motivated by this fact, we introduce the Poisson cloning model $G_{PC} (n,p)$ for random graphs in which the degrees are i.i.d Poisson random variables with mean $\gl$. Then, w...
[ "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15755355
0805.4213
2008-05-27
Latency in local, two-dimensional, fault-tolerant quantum computing
We analyze the latency of fault-tolerant quantum computing based on the 9-qubit Bacon-Shor code using a local, two-dimensional architecture. We embed the data qubits in a 7 by 7 array of physical qubits, where the extra qubits are used for ancilla preparation and qubit transportation by means of a SWAP chain. The laten...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f spedalieri_1", "name": "Federico [\"M.\"] Spedalieri", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v roychowdhury_1", "name": "Vwani [\"P.\"] Roychowdhury", "publication_history": null, "h_in...
null
16778687
0805.4201
2008-05-27
Bulk viscosity and spectral functions in QCD
We examine the behavior of the spectral function for the trace of the stress tensor in QCD in the two regimes where it is possible to make analytical progress; weak coupling, and close to a second order QCD phase transition. We determine the behavior of the bulk viscosity in each regime. We discuss the problem of analy...
[ "hep-ph", "hep-th", "nucl-th" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "20224239", "num_citations": null }, { "corpus_id": "119356652", "num_citations": null } ]
[ { "author_id": "g moore_3", "name": "Guy [\"D.\"] Moore", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o saremi_1", "name": "Omid Saremi", "publication_history": null, "h_index": null, "num_papers": null, ...
null
154933
0805.4380
2008-05-28
A mixed discontinuous/continuous finite element pair for shallow-water ocean modelling
We introduce a mixed discontinuous/continuous finite element pair for ocean modelling, with continuous quadratic pressure/layer depth and discontinuous velocity. We investigate the finite element pair applied to the linear shallow-water equations on an f-plane. The element pair has the property that all geostrophically...
[ "math.NA" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "14451149", "num_citations": null } ]
[ { "author_id": "c cotter_1", "name": "Colin [\"J.\"] Cotter", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d ham_2", "name": "David [\"A.\"] Ham", "publication_history": null, "h_index": null, "num_papers":...
null
8393184
0805.4425
2008-05-28
Low-Complexity Structured Precoding for Spatially Correlated MIMO Channels
The focus of this paper is on spatial precoding in correlated multi-antenna channels, where the number of independent data-streams is adapted to trade-off the data-rate with the transmitter complexity. Towards the goal of a low-complexity implementation, a structured precoder is proposed, where the precoder matrix evol...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v raghavan_1", "name": "Vasanthan Raghavan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a sayeed_1", "name": "Akbar [\"M.\"] Sayeed", "publication_history": null, "h_index": null, "num_pap...
null
16440620
0805.4338
2008-05-28
Quantization of Prior Probabilities for Hypothesis Testing
Bayesian hypothesis testing is investigated when the prior probabilities of the hypotheses, taken as a random vector, are quantized. Nearest neighbor and centroid conditions are derived using mean Bayes risk error as a distortion measure for quantization. A high-resolution approximation to the distortion-rate function ...
[ "cs.IT", "math.IT", "math.ST", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "k varshney_1", "name": "Kush [\"R.\"] Varshney", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l varshney_1", "name": "Lav [\"R.\"] Varshney", "publication_history": null, "h_index": null, "n...
null
8061516
0805.4471
2008-05-28
Exact Matrix Completion via Convex Optimization
We consider a problem of considerable practical interest: the recovery of a data matrix from a sampling of its entries. Suppose that we observe m entries selected uniformly at random from a matrix M. Can we complete the matrix and recover the entries that we have not seen? We show that one can perfectly recover most lo...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference", "target.key_reference" ]
[ { "corpus_id": "6054789", "num_citations": null }, { "corpus_id": "947596", "num_citations": null }, { "corpus_id": "7652247", "num_citations": null }, { "corpus_id": "8249100", "num_citations": null }, { "corpus_id": "85699", "num_citations": null } ]
[ { "author_id": "e candès_1", "name": "Emmanuel [\"J.\"] Candès", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b recht_1", "name": "Benjamin Recht", "publication_history": null, "h_index": null, "num_papers"...
null
17392045
0805.4342
2008-05-28
Wavelet Analysis of AGN X-Ray Time Series: A QPO in 3C 273?
Quasi-periodic signals have yielded important constraints on the masses of black holes in galactic X-ray binaries, and here we extend this to active galactic nuclei (AGNs). We employ a wavelet technique to analyze 19 observations of 10 AGNs obtained with the XMM-Newton EPIC pn camera. We report the detection of a candi...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15454171
0805.4279
2008-05-28
Flat Universe with Hyperbolic Voids
The properties of geodesics flow are studied in a Friedmann-Robertson-Walker metric perturbed due to the inhomogeneities of matter. The basic, averaged Jacobi equation is derived, which reveals that the low density regions (voids) are able to induce hyperbolicity, even if the global curvature of the Universe is zero or...
[ "astro-ph", "gr-qc" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5283235
0805.4359
2008-05-28
Adaptive design and analysis of supercomputer experiments
Computer experiments are often performed to allow modeling of a response surface of a physical experiment that can be too costly or difficult to run except using a simulator. Running the experiment over a dense grid can be prohibitively expensive, yet running over a sparse design chosen in advance can result in obtaini...
[ "stat.AP", "stat.ME" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "529408", "num_citations": null } ]
[ { "author_id": "r gramacy_1", "name": "Robert [\"B.\"] Gramacy", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h lee_4", "name": "Herbert [\"K.\",\"H.\"] Lee", "publication_history": null, "h_index": null, "...
null
7296648
0805.4833
2008-05-29
Design and Electronics Commissioning of the Physics Prototype of a Si-W Electromagnetic Calorimeter for the International Linear Collider
The CALICE collaboration is studying the design of high performance electromagnetic and hadronic calorimeters for future International Linear Collider detectors. For the electromagnetic calorimeter, the current baseline choice is a high granularity sampling calorimeter with tungsten as absorber and silicon detectors as...
[ "physics.ins-det" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8193798
0805.4620
2008-05-29
Uplink Macro Diversity of Limited Backhaul Cellular Network
In this work new achievable rates are derived, for the uplink channel of a cellular network with joint multicell processing, where unlike previous results, the ideal backhaul network has finite capacity per-cell. Namely, the cell sites are linked to the central joint processor via lossless links with finite capacity. T...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a sanderovich_1", "name": "Amichai Sanderovich", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o somekh_1", "name": "Oren Somekh", "publication_history": null, "h_index": null, "num_papers": ...
null
118795852
0805.4641
2008-05-29
Band structure of ZnO from resonant x-ray emission spectroscopy
Soft x-ray emission and absorption spectroscopy of the O K-edge are employed to investigate the electronic structure of wurtzite ZnO(0001). A quasiparticle band structure calculated within the GW approximation agrees well with the data, most notably with the energetic location of the Zn3d - O2p hybridized state and the...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a preston_1", "name": "A. [\"R.\",\"H.\"] Preston", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a preston_1", "name": "A. [\"R.\",\"H.\"] Preston", "publication_history": null, "h_index": null,...
null
2439134
0805.4472
2008-05-29
Queueing systems with pre-scheduled random arrivals
We consider a point process $i+\xi_i$, where $i\in \bZ$ and the $\xi_{i}$'s are i.i.d. random variables with variance $\sigma^{2}$. This process, with a suitable rescaling of the distribution of $\xi_i$'s, converges to the Poisson process in total variation for large $\sigma$. We then study a simple queueing system wit...
[ "math.PR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g guadagni_1", "name": "Gianluca Guadagni", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s ndreca_1", "name": "Sokol Ndreca", "publication_history": null, "h_index": null, "num_papers": null...
null
14015330
0805.4598
2008-05-29
Maximum likelihood estimation of cloud height from multi-angle satellite imagery
We develop a new estimation technique for recovering depth-of-field from multiple stereo images. Depth-of-field is estimated by determining the shift in image location resulting from different camera viewpoints. When this shift is not divisible by pixel width, the multiple stereo images can be combined to form a super-...
[ "stat.AP" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e anderes_1", "name": "Ethan [\"B.\"] Anderes", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b yu_18", "name": "Beinan Yu", "publication_history": null, "h_index": null, "num_papers": null, ...
null
118479176
0805.4492
2008-05-29
X-ray Microlensing in RXJ1131-1231 and HE1104-1805
We present results from a monitoring campaign performed with the Chandra X-ray Observatory of the gravitationally lensed quasars RX J1131-1231 and HE 1104-1805. We detect significant X-ray variability in all images of both quasars. The flux variability detected in image A of RX J1131-1231 is of particular interest beca...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118513055
0805.4490
2008-05-29
Travel and tourism: Into a complex network
It is discussed how the worldwide tourist arrivals, about 10% of world's domestic product, form a largely heterogeneous and directed complex network. Remarkably the random network of connectivity is converted into a scale-free network of intensities. The importance of weights on network connections is brought into disc...
[ "physics.soc-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5802980
0805.4836
2008-05-30
The shortest period field contact binary
Photometric and spectroscopic results for the contact binary GSC 01387-00475 (ASAS 083128+1953.1) are presented. The existence of this binary with the orbital period of P = 0.2178 d strengthens the argument that the cut-off of the period distribution for contact binaries - until now defined by CC Comae - is very sharp....
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15061314
0805.4703
2008-05-30
The "footprints'' of irreversibility
We reformulate the result for the entropy production given in Phys. Rev. Lett. 98, 080602 (2007) in terms of the relative entropy of microscopic trajectories. By a combination with the Crook's theorem, we identify the path variables that are sufficient to fully identify irreversibility. We show that work saturates the ...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a gomez-marin_1", "name": "Alex Gomez-Marin", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j parrondo_1", "name": "Juan [\"M\",\"R\"] Parrondo", "publication_history": null, "h_index": null, ...
null
17443457
0805.4676
2008-05-30
Backward SDEs with constrained jumps and quasi-variational inequalities
We consider a class of backward stochastic differential equations (BSDEs) driven by Brownian motion and Poisson random measure, and subject to constraints on the jump component. We prove the existence and uniqueness of the minimal solution for the BSDEs by using a penalization approach. Moreover, we show that under mil...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
260750669
0805.4802
2008-05-30
NLO vector-boson production matched with shower in POWHEG
We present a next-to-leading-order calculation of W/Z production interfaced to shower Monte Carlo, implemented according to the POWHEG method. Finite width effects, Z/gamma interference and angular correlations of decay products are included. A detailed comparison with MC@NLO and PYTHIA is carried out.
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18481617
0805.4770
2008-05-30
Benchmark graphs for testing community detection algorithms
Community structure is one of the most important features of real networks and reveals the internal organization of the nodes. Many algorithms have been proposed but the crucial issue of testing, i.e. the question of how good an algorithm is, with respect to others, is still open. Standard tests include the analysis of...
[ "physics.soc-ph", "physics.comp-ph" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
55052697
0805.4727
2008-05-30
Formation Of A Cold Antihydrogen Beam in AEGIS For Gravity Measurements
The formation of the antihydrogen beam in the AEGIS experiment through the use of inhomogeneous electric fields is discussed and simulation results including the geometry of the apparatus and realistic hypothesis about the antihydrogen initial conditions are shown. The resulting velocity distribution matches the requir...
[ "physics.atom-ph", "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g testera_1", "name": "Gemma Testera", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a belov_1", "name": "Alexandre [\"S.\"] Belov", "publication_history": null, "h_index": null, "num_papers"...
null
14817599
0805.4658
2008-05-30
Multi-matrix models and emergent geometry
Encouraged by the AdS/CFT correspondence, we study emergent local geometry in large N multi-matrix models from the perspective of a strong coupling expansion. By considering various solvable interacting models we show how the emergence or non-emergence of local geometry at strong coupling is captured by observables tha...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18173201
0805.4826
2008-05-30
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
To understand the formation and evolution of solar-type stars in the solar neighborhood, we need to measure their stellar parameters to high accuracy. We present a catalogue of accurate stellar parameters for 451 stars that represent the HARPS Guaranteed Time Observations (GTO) ``high precision'' sample. Spectroscopic ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17568135
0806.0050
2008-05-31
Topology Types of Adinkras and the Corresponding Representations of N-Extended Supersymmetry
We present further progress toward a complete classification scheme for describing supermultiplets of N-extended worldline supersymmetry, which relies on graph-theoretic topological invariants. In particular, we demonstrate a relationship between Adinkra diagrams and quotients of N-dimensional cubes, where the quotient...
[ "hep-th", "math-ph", "math.CO", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
117742196
0806.0113
2008-05-31
A revised catalogue of EGRET gamma-ray sources
We present a catalog of point gamma-ray sources detected by the EGRET detector aboard the Compton Gamma Ray Observatory. We have used the whole gamma-ray dataset of reprocessed photons at energies above 100 MeV together with new Galactic interstellar emission models based on recent CO, HI, dark gas, and interstellar ra...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6491198
0806.0080
2008-05-31
Outer Bounds for Multiple Access Channels with Feedback using Dependence Balance
We use the idea of dependence balance to obtain a new outer bound for the capacity region of the discrete memoryless multiple access channel with noiseless feedback (MAC-FB). We consider a binary additive noisy MAC-FB whose feedback capacity is not known. The binary additive noisy MAC considered in this paper can be vi...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r tandon_1", "name": "Ravi Tandon", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s ulukus_1", "name": "Sennur Ulukus", "publication_history": null, "h_index": null, "num_papers": null, "...
null
17232513
0807.0680
2008-06-01
Tides and the Evolution of Planetary Habitability
Tides raised on a planet by its host star's gravity can reduce a planet's orbital semi-major axis and eccentricity. This effect is only relevant for planets orbiting very close to their host stars. The habitable zones of low-mass stars are also close-in and tides can alter the orbits of planets in these locations. We c...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9212916
0806.0145
2008-06-01
Lasso-type recovery of sparse representations for high-dimensional data
The Lasso is an attractive technique for regularization and variable selection for high-dimensional data, where the number of predictor variables $p_n$ is potentially much larger than the number of samples $n$. However, it was recently discovered that the sparsity pattern of the Lasso estimator can only be asymptotical...
[ "math.ST", "stat.ME", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "12605120", "num_citations": null }, { "corpus_id": "6995297", "num_citations": null }, { "corpus_id": "14772932", "num_citations": null }, { "corpus_id": "1326449", "num_citations": null } ]
[ { "author_id": "n meinshausen_1", "name": "Nicolai Meinshausen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b yu_5", "name": "Bin Yu", "publication_history": null, "h_index": null, "num_papers": null, ...
null
7355463
0806.0180
2008-06-01
Accelerating the spin-up of Ensemble Kalman Filtering
A scheme is proposed to improve the performance of the ensemble-based Kalman Filters during the initial spin-up period. By applying the no-cost ensemble Kalman Smoother, this scheme allows the model solutions for the ensemble to be "running in place" with the true dynamics, provided by a few observations. Results of th...
[ "nlin.CD" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14106022
0806.0217
2008-06-02
SMA Imaging of CO(3-2) Line and 860 micron Continuum of Arp 220 : Tracing the Spatial Distribution of Luminosity
We used the Submillimeter Array (SMA) to image 860 micron continuum and CO(3-2) line emission in the ultraluminous merging galaxy Arp 220, achieving a resolution of 0.23" (80 pc) for the continuum and 0.33" (120 pc) for the line. The CO emission peaks around the two merger nuclei with a velocity signature of gas rotati...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17882075
0806.0399
2008-06-02
A Survey for NV Absorption at z~z_GRB in GRB Afterglow Spectra: Clues to Gas Near the Progenitor Star
We survey NV absorption in the afterglow spectra of long-duration gamma-ray bursts (GRBs) with the intent to study highly ionized gas in the galaxies hosting these events. We identify a high incidence (6/7) of spectra exhibiting NV gas with z~z_GRB and the majority show large column densities NV > 10^14 cm^-2. With one...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "359773", "num_citations": null }, { "corpus_id": "17951959", "num_citations": null }, { "corpus_id": "921188", "num_citations": null }, { "corpus_id": "15187502", "num_citations": null }, { "corpus_id": "16971043", "num_citations": null }, ...
[ { "author_id": "j prochaska_1", "name": "Jason [\"Xavier\"] Prochaska", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m dessauges-zavadsky_1", "name": "Miroslava Dessauges-Zavadsky", "publication_history": null, ...
null
8284898
0806.0252
2008-06-02
Susceptibility in subcritical random graphs
We study the evolution of the susceptibility in the subcritical random graph $G(n,p)$ as $n$ tends to infinity. We obtain precise asymptotics of its expectation and variance, and show it obeys a law of large numbers. We also prove that the scaled fluctuations of the susceptibility around its deterministic limit converg...
[ "math.PR", "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
532570
0806.0389
2008-06-02
Hopf-cyclic homology with contramodule coefficients
A new class of coefficients for the Hopf-cyclic homology of module algebras and coalgebras is introduced. These coefficients, termed stable anti-Yetter-Drinfeld contramodules, are both modules and contramodules of a Hopf algebra that satisfy certain compatibility conditions.
[ "math.KT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15760624
0806.0004
2008-06-02
Low Dimensional Behavior of Large Systems of Globally Coupled Oscillators
It is shown that, in the infinite size limit, certain systems of globally coupled phase oscillators display low dimensional dynamics. In particular, we derive an explicit finite set of nonlinear ordinary differential equations for the macroscopic evolution of the systems considered. For example, an exact, closed form s...
[ "nlin.CD" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "e ott_1", "name": "Edward Ott", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t antonsen_1", "name": "Thomas [\"M.\"] Antonsen", "publication_history": null, "h_index": null, "num_papers": nu...
null
8081816
0806.0253
2008-06-02
On collinear sets in straight line drawings
We consider straight line drawings of a planar graph $G$ with possible edge crossings. The \emph{untangling problem} is to eliminate all edge crossings by moving as few vertices as possible to new positions. Let $fix(G)$ denote the maximum number of vertices that can be left fixed in the worst case. In the \emph{alloca...
[ "cs.CG", "cs.DM" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "2080075", "num_citations": null }, { "corpus_id": "10111239", "num_citations": null } ]
[ { "author_id": "a ravsky_1", "name": "Alexander Ravsky", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o verbitsky_1", "name": "Oleg Verbitsky", "publication_history": null, "h_index": null, "num_papers": nu...
null
53977545
0806.0418
2008-06-03
Prompt neutrino fluxes from atmospheric charm
We calculate the prompt neutrino flux from atmospheric charm production by cosmic rays, using the dipole picture in a perturbative QCD framework, which incorporates the parton saturation effects present at high energies. We compare our results with the next-to-leading order perturbative QCD result and find that saturat...
[ "hep-ph", "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18225429
0806.0594
2008-06-03
Solvable model for chimera states of coupled oscillators
Networks of identical, symmetrically coupled oscillators can spontaneously split into synchronized and desynchronized sub-populations. Such chimera states were discovered in 2002, but are not well understood theoretically. Here we obtain the first exact results about the stability, dynamics, and bifurcations of chimera...
[ "nlin.CD", "math.DS", "nlin.PS" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12397399
0806.0511
2008-06-03
AGN Dusty Tori: I. Handling of Clumpy Media
According to unified schemes of Active Galactic Nuclei (AGN), the central engine is surrounded by dusty, optically thick clouds in a toroidal structure. We have recently developed a formalism that for the first time takes proper account of the clumpy nature of the AGN torus. We now provide a detailed report of our find...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7208968
0806.0604
2008-06-03
Information-theoretic limits on sparse signal recovery: Dense versus sparse measurement matrices
We study the information-theoretic limits of exactly recovering the support of a sparse signal using noisy projections defined by various classes of measurement matrices. Our analysis is high-dimensional in nature, in which the number of observations $n$, the ambient signal dimension $p$, and the signal sparsity $k$ ar...
[ "math.ST", "cs.IT", "math.IT", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "1446", "num_citations": null } ]
[ { "author_id": "w wang_172", "name": "Wei Wang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m wainwright_1", "name": "Martin [\"J.\"] Wainwright", "publication_history": null, "h_index": null, "num_papers...
null
15286972
0806.0562
2008-06-03
Universal Coding on Infinite Alphabets: Exponentially Decreasing Envelopes
This paper deals with the problem of universal lossless coding on a countable infinite alphabet. It focuses on some classes of sources defined by an envelope condition on the marginal distribution, namely exponentially decreasing envelope classes with exponent $\alpha$. The minimax redundancy of exponentially decreasin...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14053188
0806.0734
2008-06-04
The intrinsic hypoelliptic Laplacian and its heat kernel on unimodular Lie groups
We present an invariant definition of the hypoelliptic Laplacian on sub-Riemannian structures with constant growth vector, using the Popp's volume form introduced by Montgomery. This definition generalizes the one of the Laplace-Beltrami operator in Riemannian geometry. In the case of left-invariant problems on unimodu...
[ "math.AP", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
878954
0806.0874
2008-06-04
Towards sustainable transport: wireless detection of passenger trips on public transport buses
An important problem in creating efficient public transport is obtaining data about the set of trips that passengers make, usually referred to as an Origin/Destination (OD) matrix. Obtaining this data is problematic and expensive in general, especially in the case of buses because on-board ticketing systems do not reco...
[ "cs.CY" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "v kostakos_1", "name": "Vassilis Kostakos", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
14368775
0806.0788
2008-06-04
Relaxation time of a CFT plasma at finite coupling
Following recent formulation of second order relativistic viscous hydrodynamics for conformal fluids, we compute finite coupling corrections to the relaxation time of N=4 supersymmetric Yang-Mills plasma. The result is expected to be universal for any strongly coupled conformal gauge theory plasma in four dimensions.
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18111249
0806.0719
2008-06-04
Misaligned spin-orbit in the XO-3 planetary system?
The transiting extrasolar planet XO-3b is remarkable, with a high mass and eccentric orbit. The unusual characteristics make it interesting to test whether its orbital plane is parallel to the equator of its host star, as it is observed for other transiting planets. We performed radial velocity measurements of XO-3 wit...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9225899
0806.0870
2008-06-04
The Euler-Poincare theory of Metamorphosis
In the pattern matching approach to imaging science, the process of ``metamorphosis'' is template matching with dynamical templates. Here, we recast the metamorphosis equations of into the Euler-Poincare variational framework of and show that the metamorphosis equations contain the equations for a perfect complex fluid...
[ "cs.CV", "nlin.CD" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16433454
0806.1449
2008-06-04
The Neutrino Flux prediction at MiniBooNE
The Booster Neutrino Experiment (MiniBooNE) searches for numu-to-nue oscillations using the O(1 GeV) neutrino beam produced by the Booster synchrotron at the Fermi National Accelerator Laboratory (FNAL). The Booster delivers protons with 8 GeV kinetic energy (8.89 GeV/c momentum) to a beryllium target, producing neutri...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15880012
0806.0813
2008-06-04
Reliability, Sufficiency, and the Decomposition of Proper Scores
Scoring rules are an important tool for evaluating the performance of probabilistic forecasting schemes. In the binary case, scoring rules (which are strictly proper) allow for a decomposition into terms related to the resolution and to the reliability of the forecast. This fact is particularly well known for the Brier...
[ "physics.ao-ph", "physics.data-an" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
243250
0806.0945
2008-06-05
Space-QUEST: Experiments with quantum entanglement in space
The European Space Agency (ESA) has supported a range of studies in the field of quantum physics and quantum information science in space for several years, and consequently we have submitted the mission proposal Space-QUEST (Quantum Entanglement for Space Experiments) to the European Life and Physical Sciences in Spac...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2295232
0806.0971
2008-06-05
Flowing with Time: a New Approach to Nonlinear Cosmological Perturbations
Nonlinear effects are crucial in order to compute the cosmological matter power spectrum to the accuracy required by future generation surveys. Here, a new approach is presented, in which the power spectrum, the bispectrum and higher order correlations, are obtained -- at any redshift and for any momentum scale -- by i...
[ "astro-ph", "gr-qc", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12597355
0806.0999
2008-06-05
The gauge theory of dislocations: conservation and balance laws
We derive conservation and balance laws for the translational gauge theory of dislocations by applying Noether's theorem. We present an improved translational gauge theory of dislocations including the dislocation density tensor and the dislocation current tensor. The invariance of the variational principle under the c...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6440219
0806.1031
2008-06-05
Proton lifetime bounds from chirally symmetric lattice QCD
We present results for the matrix elements relevant for proton decay in Grand Unified Theories (GUTs). The calculation is performed at a fixed lattice spacing a^{-1}=1.73(3) GeV using 2+1 flavors of domain wall fermions on lattices of size 16^3\times32 and 24^3\times64 with a fifth dimension of length 16. We use the in...
[ "hep-lat" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119487601", "num_citations": null } ]
[ { "author_id": "y aoki_4", "name": "Yasumichi Aoki", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p boyle_1", "name": "Peter [\"A.\"] Boyle", "publication_history": null, "h_index": null, "num_papers": null...
null
18962399
1101.2149
2008-06-05
Neutrinoless double beta decay of deformed nuclei within QRPA with realistic interaction
In this paper a microscopic state-of-the-art approach to calculation of the nuclear matrix element $M^{0\nu}$ for neutrinoless double beta decay with an account for nuclear deformation is presented in length and applied for $^{76}$Ge, $^{150}$Nd and $^{160}$Gd. The proton-neutron quasiparticle random phase approximatio...
[ "nucl-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
273162003
0806.1071
2008-06-05
Histograms and Wavelets on Probabilistic Data
There is a growing realization that uncertain information is a first-class citizen in modern database management. As such, we need techniques to correctly and efficiently process uncertain data in database systems. In particular, data reduction techniques that can produce concise, accurate synopses of large probabilist...
[ "cs.DB" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "59915", "num_citations": null } ]
[ { "author_id": "g cormode_1", "name": "Graham Cormode", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m garofalakis_1", "name": "Minos [\"N.\"] Garofalakis", "publication_history": null, "h_index": null, "nu...
null
10193124
0806.1002
2008-06-05
A transient radio jet in an erupting dwarf nova
Astrophysical jets seem to occur in nearly all types of accreting objects: from supermassive black holes to young stellar objects. Based on X-ray binaries, a unified scenario describing the disc/jet coupling has evolved and extended to many accreting objects. The only major exceptions are thought to be cataclysmic vari...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18381182
0806.1059
2008-06-05
Discovery of Two Nearby, Peculiar L Dwarfs from the 2MASS Proper Motion Survey: Young or Metal-Rich?
We present the discovery of two nearby L dwarfs from our 2MASS proper motion search, which uses multi-epoch 2MASS observations covering ~4700 square degrees of sky. 2MASS J18212815+1414010 and 2MASS J21481628+4003593 were overlooked by earlier surveys due to their faint optical magnitudes and their proximity to the Gal...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17547061
0806.0930
2008-06-05
Matching univalent functions and conformal welding
Given a conformal mapping $f$ of the unit disk $\mathbb D$ onto a simply connected domain $D$ in the complex plane bounded by a closed Jordan curve, we consider the problem of constructing a matching conformal mapping, i.e., the mapping of the exterior of the unit disk $\mathbb D^*$ onto the exterior domain $D^*$ regar...
[ "math.CV", "math-ph", "math.MP", "math.RT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e grong_1", "name": "Erlend Grong", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p gumenyuk_0", "name": "Pavel Gumenyuk", "publication_history": null, "h_index": null, "num_papers": null, ...
null
264969207
0806.0848
2008-06-05
Top-tagging: A Method for Identifying Boosted Hadronic Tops
A method is introduced for distinguishing top jets (boosted, hadronically decaying top quarks) from light quark and gluon jets using jet substructure. The procedure involves parsing the jet cluster to resolve its subjets, and then imposing kinematic constraints. With this method, light quark or gluon jets with pT ~ 1 T...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15095926
0806.1006
2008-06-05
The VO-Neural project: recent developments and some applications
VO-Neural is the natural evolution of the Astroneural project which was started in 1994 with the aim to implement a suite of neural tools for data mining in astronomical massive data sets. At a difference with its ancestor, which was implemented under Matlab, VO-Neural is written in C++, object oriented, and it is spec...
[ "astro-ph", "cs.CE" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m brescia_1", "name": "Massimo Brescia", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s cavuoti_1", "name": "Stefano Cavuoti", "publication_history": null, "h_index": null, "num_papers": nul...
null
16078583
0806.1055
2008-06-05
Probing Reionization with the 21 cm-Galaxy Cross Power Spectrum
The cross-correlation between high redshift galaxies and 21 cm emission from the high redshift intergalactic medium (IGM) promises to be an excellent probe of the Epoch of Reionization (EoR). On large scales, the 21 cm and galaxy fields are anti-correlated during most of the reionization epoch. However, on scales small...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null