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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11052878 | 1004.4539 | 2010-04-26 | Towards a High Fidelity Direct Transcription Method for Optimisation of Low-Thrust Trajectories | We build upon some new ideas in direct transcription methods developed within the Advanced Concepts Team to introduce two improvements to the Sims-Flanagan transcription for low-thrust trajectories. The obtained new algorithm is able to produce an operational trajectory accounting for the real spacecraft dynamics and a... | [
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1812595 | 1004.4601 | 2010-04-26 | Data Stream Algorithms for Codeword Testing | Motivated by applications in storage systems and property testing, we study data stream algorithms for local testing and tolerant testing of codes. Ideally, we would like to know whether there exist asymptotically good codes that can be local/tolerant tested with one-pass, poly-log space data stream algorithms. We show... | [
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47399 | 1004.4791 | 2010-04-27 | Missing and spurious interactions and the reconstruction of complex networks | Network analysis is currently used in a myriad of contexts: from identifying potential drug targets to predicting the spread of epidemics and designing vaccination strategies, and from finding friends to uncovering criminal activity. Despite the promise of the network approach, the reliability of network data is a sour... | [
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7174932 | 1004.4917 | 2010-04-27 | On the Capacity of Compound State-Dependent Channels with States Known at the Transmitter | This paper investigates the capacity of compound state-dependent channels with non-causal state information available at only the transmitter. A new lower bound on the capacity of this class of channels is derived. This bound is shown to be tight for the special case of compound channels with stochastic degraded compon... | [
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"name": "Shlomo Shamai",
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119314421 | 1004.4845 | 2010-04-27 | An asymptotic variance of the self-intersections of random walks | We present a Darboux-Wiener type lemma and apply it to obtain an exact asymptotic for the variance of the self-intersection of one and two-dimensional random walks. As a corollary, we obtain a central limit theorem for random walk in random scenery conjectured by Kesten and Spitzer in 1979. | [
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16073097 | 1004.4686 | 2010-04-27 | Effect of inter-sample spacing constraint on spectrum estimation with irregular sampling | A practical constraint that comes in the way of spectrum estimation of a continuous time stationary stochastic process is the minimum separation between successively observed samples of the process. When the underlying process is not band-limited, sampling at any uniform rate leads to aliasing, while certain stochastic... | [
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28186379 | 1004.5040 | 2010-04-27 | The Eigenvalue Problem for Linear and Affine Iterated Function Systems | The eigenvalue problem for a linear function L centers on solving the eigen-equation Lx = rx. This paper generalizes the eigenvalue problem from a single linear function to an iterated function system F consisting of possibly an infinite number of linear or affine functions. The eigen-equation becomes F(X) = rX, where ... | [
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16121675 | 1004.4777 | 2010-04-27 | On the Monadic Second-Order Transduction Hierarchy | We compare classes of finite relational structures via monadic second-order transductions. More precisely, we study the preorder where we set C \subseteq K if, and only if, there exists a transduction {\tau} such that C\subseteq{\tau}(K). If we only consider classes of incidence structures we can completely describe th... | [
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3089712 | 1004.4864 | 2010-04-27 | Polynomial Learning of Distribution Families | The question of polynomial learnability of probability distributions, particularly Gaussian mixture distributions, has recently received significant attention in theoretical computer science and machine learning. However, despite major progress, the general question of polynomial learnability of Gaussian mixture distri... | [
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118699223 | 1004.4897 | 2010-04-27 | Microwave observations of spinning dust emission in NGC6946 | We report new cm-wave measurements at five frequencies between 15 and 18GHz of the continuum emission from the reportedly anomalous "region 4" of the nearby galaxy NGC6946. We find that the emission in this frequency range is significantly in excess of that measured at 8.5GHz, but has a spectrum from 15-18GHz consisten... | [
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54039561 | 1004.4841 | 2010-04-27 | Short-term variability of a sample of 29 trans-Neptunian objects and Centaurs | We present results of 6 years of observations, reduced and analyzed with the same tools in a systematic way. We report completely new data for 15 objects, for 5 objects we present a new analysis of previously published results plus additional data and for 9 objects we present a new analysis of data already published. L... | [
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119190667 | 1004.4684 | 2010-04-27 | Deformation and Failure of Amorphous Solidlike Materials | Since the 1970's, theories of deformation and failure of amorphous, solidlike materials have started with models in which stress-driven, molecular rearrangements occur at localized flow defects via "shear transformations". This picture is the basis for the modern theory of "shear transformation zones" (STZ's), which is... | [
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118562882 | 1004.4833 | 2010-04-27 | Prompt Tidal Disruption of Stars as an Electromagnetic Signature of Supermassive Black Hole Coalescence | A precise electromagnetic measurement of the sky coordinates and redshift of a coalescing black hole binary holds the key for using its gravitational wave (GW) signal to constrain cosmological parameters and to test general relativity. Here we show that the merger of ~10^{6-7}M_sun black holes is generically followed o... | [
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15971315 | 1004.4689 | 2010-04-27 | Quantum Location Verification in Noisy Channels | Recently it has been shown how the use of quantum entanglement can lead to the creation of real-time communication channels whose viability can be made location dependent. Such functionality leads to new security paradigms that are not possible in classical communication networks. Key to these new security paradigms ar... | [
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119274306 | 1004.4825 | 2010-04-27 | Photometric characterization of exoplanets using angular and spectral differential imaging | The direct detection of exoplanets has been the subject of intensive research in the recent years. Data obtained with future high-contrast imaging instruments optimized for giant planets direct detection are strongly limited by the speckle noise. Specific observing strategies and data analysis methods, such as angular ... | [
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15703808 | 1004.4753 | 2010-04-27 | Invariance properties of the multidimensional matching distance in Persistent Topology and Homology | Persistent Topology studies topological features of shapes by analyzing the lower level sets of suitable functions, called filtering functions, and encoding the arising information in a parameterized version of the Betti numbers, i.e. the ranks of persistent homology groups. Initially introduced by considering real-val... | [
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"name": "Patrizio Frosini",
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6096755 | 1004.4792 | 2010-04-27 | Social Network Sensors for Early Detection of Contagious Outbreaks | Current methods for the detection of contagious outbreaks give contemporaneous information about the course of an epidemic at best. Individuals at the center of a social network are likely to be infected sooner, on average, than those at the periphery. However, mapping a whole network to identify central individuals wh... | [
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6401091 | 1004.5156 | 2010-04-28 | An In-Depth Spectroscopic Analysis of the Blazhko Star RR Lyr. I. Characterisation of the star: abundance analysis and fundamental parameters | The knowledge of accurate stellar parameters is a keystone in several fields of stellar astrophysics, such as asteroseismology and stellar evolution. Although the fundamental parameters can be derived both from spectroscopy and multicolour photometry, the results obtained are sometimes affected by systematic uncertaint... | [
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14039508 | 1004.5132 | 2010-04-28 | The Two-User Deterministic Interference Channel with Rate-Limited Feedback | In this paper we study the effect of rate-limited feedback on the sum-rate capacity of the deterministic interference channel. We characterize the sum-rate capacity of this channel in the symmetric case and show that having feedback links can increase the sum-rate capacity by at most the rate of the available feedback.... | [
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"name": "Amir [\"Salman\"] Avestimehr",
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17834380 | 1004.4949 | 2010-04-28 | Reed Muller Sensing Matrices and the LASSO | We construct two families of deterministic sensing matrices where the columns are obtained by exponentiating codewords in the quaternary Delsarte-Goethals code $DG(m,r)$. This method of construction results in sensing matrices with low coherence and spectral norm. The first family, which we call Delsarte-Goethals frame... | [
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7050262 | 1004.5186 | 2010-04-28 | Multiscale approach for the network compression-friendly ordering | We present a fast multiscale approach for the network minimum logarithmic arrangement problem. This type of arrangement plays an important role in a network compression and fast node/link access operations. The algorithm is of linear complexity and exhibits good scalability which makes it practical and attractive for u... | [
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197715 | 1004.5127 | 2010-04-28 | Quantum money from knots | Quantum money is a cryptographic protocol in which a mint can produce a quantum state, no one else can copy the state, and anyone (with a quantum computer) can verify that the state came from the mint. We present a concrete quantum money scheme based on superpositions of diagrams that encode oriented links with the sam... | [
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43280895 | 1004.5073 | 2010-04-28 | Experimental Test of Quantum No-Hiding Theorem | Linearity and unitarity are two fundamental tenets of quantum theory. Any consequence that follows from these must be respected in the quantum world. The no-cloning theorem and the no-deleting theorem are the consequences of the linearity and the unitarity. Together with the stronger no-cloning theorem they provide per... | [
"quant-ph"
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12288511 | 1004.5070 | 2010-04-28 | Multichannel Sampling of Pulse Streams at the Rate of Innovation | We consider minimal-rate sampling schemes for infinite streams of delayed and weighted versions of a known pulse shape. The minimal sampling rate for these parametric signals is referred to as the rate of innovation and is equal to the number of degrees of freedom per unit time. Although sampling of infinite pulse stre... | [
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10277973 | 1004.5026 | 2010-04-28 | Compressed Sensing: How sharp is the Restricted Isometry Property | Compressed Sensing (CS) seeks to recover an unknown vector with $N$ entries by making far fewer than $N$ measurements; it posits that the number of compressed sensing measurements should be comparable to the information content of the vector, not simply $N$. CS combines the important task of compression directly with t... | [
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11484504 | 1004.5012 | 2010-04-28 | Bandwidth and Distortion Revisited | In this paper we merge recent developments on exact algorithms for finding an ordering of vertices of a given graph that minimizes bandwidth (the BANDWIDTH problem) and for finding an embedding of a given graph into a line that minimizes distortion (the DISTORTION problem). For both problems we develop algorithms that ... | [
"cs.DS"
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119668427 | 1004.4953 | 2010-04-28 | The Number of Eigenvalues of a Tensor | Eigenvectors of tensors, as studied recently in numerical multilinear algebra, correspond to fixed points of self-maps of a projective space. We determine the number of eigenvectors and eigenvalues of a generic tensor, and we show that the number of normalized eigenvalues of a symmetric tensor is always finite. We also... | [
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118602559 | 1004.5089 | 2010-04-28 | An approach for both the computation of coarse-scale steady state solutions and initialization on a slow manifold | We present a simple technique for the computation of coarse-scale steady states of dynamical systems with time scale separation in the form of a "wrapper" around a fine-scale simulator. We discuss how this approach alleviates certain problems encountered by comparable existing approaches, and illustrate its use by comp... | [
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"author_id": "b sonday_1",
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14238708 | 1004.5049 | 2010-04-28 | The Burbea-Rao and Bhattacharyya centroids | We study the centroid with respect to the class of information-theoretic Burbea-Rao divergences that generalize the celebrated Jensen-Shannon divergence by measuring the non-negative Jensen difference induced by a strictly convex and differentiable function. Although those Burbea-Rao divergences are symmetric by constr... | [
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11861526 | 1004.5168 | 2010-04-28 | Efficient and Effective Spam Filtering and Re-ranking for Large Web Datasets | The TREC 2009 web ad hoc and relevance feedback tasks used a new document collection, the ClueWeb09 dataset, which was crawled from the general Web in early 2009. This dataset contains 1 billion web pages, a substantial fraction of which are spam --- pages designed to deceive search engines so as to deliver an unwanted... | [
"cs.IR"
] | null | [
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9306333 | 1004.4965 | 2010-04-28 | Many-to-Many Graph Matching: a Continuous Relaxation Approach | Graphs provide an efficient tool for object representation in various computer vision applications. Once graph-based representations are constructed, an important question is how to compare graphs. This problem is often formulated as a graph matching problem where one seeks a mapping between vertices of two graphs whic... | [
"stat.ML",
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15501284 | 1004.5422 | 2010-04-29 | Density of states and quantum phase transition in the thermodynamic limit of the Mermin central-spin model | We apply a spin-coherent states formalism to study the central-spin model with monochromatic bath and symmetric coupling (the Mermin model); in particular, we derive analytic expressions for the density of states in the thermodynamic limit when the number of bath spins is taken to infinity. From the thermodynamic limit... | [
"cond-mat.stat-mech"
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... | null |
15338301 | 1004.5329 | 2010-04-29 | Settling the complexity of local max-cut (almost) completely | We consider the problem of finding a local optimum for Max-Cut with FLIP-neighborhood, in which exactly one node changes the partition. Schaeffer and Yannakakis (SICOMP, 1991) showed PLS-completeness of this problem on graphs with unbounded degree. On the other side, Poljak (SICOMP, 1995) showed that in cubic graphs ev... | [
"cs.CC"
] | null | [
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118489867 | 1004.5410 | 2010-04-29 | Strong Gravitational Lensing by the Super-massive cD Galaxy in Abell 3827 | We have discovered strong gravitational lensing features in the core of the nearby cluster Abell 3827 by analyzing Gemini South GMOS images. The most prominent strong lensing feature is a highly-magnified, ring-shaped configuration of four images around the central cD galaxy. GMOS spectroscopic analysis puts this sourc... | [
"astro-ph.CO"
] | null | [
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119269126 | 1004.5401 | 2010-04-29 | The Dark Molecular Gas | The mass of molecular gas in an interstellar cloud is often measured using line emission from low rotational levels of CO, which are sensitive to the CO mass, and then scaling to the assumed molecular hydrogen H_2 mass. However, a significant H_2 mass may lie outside the CO region, in the outer regions of the molecular... | [
"astro-ph.GA"
] | null | [
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2514359 | 1004.5354 | 2010-04-29 | Using a Model of Social Dynamics to Predict Popularity of News | Popularity of content in social media is unequally distributed, with some items receiving a disproportionate share of attention from users. Predicting which newly-submitted items will become popular is critically important for both companies that host social media sites and their users. Accurate and timely prediction w... | [
"cs.CY"
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36491379 | 1004.5377 | 2010-04-29 | Minimizing the stochasticity of halos in large-scale structure surveys | In recent work (Seljak, Hamaus and Desjacques 2009) it was found that weighting central halo galaxies by halo mass can significantly suppress their stochasticity relative to the dark matter, well below the Poisson model expectation. In this paper we extend this study with the goal of finding the optimal mass-dependent ... | [
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{
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"name": "Uroš Seljak",
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419164 | 1005.0826 | 2010-04-29 | Clustering processes | The problem of clustering is considered, for the case when each data point is a sample generated by a stationary ergodic process. We propose a very natural asymptotic notion of consistency, and show that simple consistent algorithms exist, under most general non-parametric assumptions. The notion of consistency is as f... | [
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"math.IT",
"stat.ML"
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9738556 | 1004.5305 | 2010-04-29 | Compressed Sensing with off-axis frequency-shifting holography | This work reveals an experimental microscopy acquisition scheme successfully combining Compressed Sensing (CS) and digital holography in off-axis and frequency-shifting conditions. CS is a recent data acquisition theory involving signal reconstruction from randomly undersampled measurements, exploiting the fact that mo... | [
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{
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{
"author_id": "m atlan_1",
"name": "Michael Atlan",
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5294049 | 1004.5370 | 2010-04-29 | Self-Taught Hashing for Fast Similarity Search | The ability of fast similarity search at large scale is of great importance to many Information Retrieval (IR) applications. A promising way to accelerate similarity search is semantic hashing which designs compact binary codes for a large number of documents so that semantically similar documents are mapped to similar... | [
"cs.IR"
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55855450 | 1004.5244 | 2010-04-29 | The early dynamical evolution of cool, clumpy star clusters | Observations and theory both suggest that star clusters form sub-virial (cool) with highly sub-structured distributions. We perform a large ensemble of N-body simulations of moderate-sized (N=1000) cool, fractal clusters to investigate their early dynamical evolution. We find that cool, clumpy clusters dynamically mass... | [
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119129739 | 1004.5252 | 2010-04-29 | A composite parameterization of unitary groups, density matrices and subspaces | Unitary transformations and density matrices are central objects in quantum physics and various tasks require to introduce them in a parameterized form. In the present article we present a parameterization of the unitary group $\mathcal{U}(d)$ of arbitrary dimension $d$ which is constructed in a composite way. We show ... | [
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22698918 | 1004.5504 | 2010-04-30 | Control and Tomography of a Three Level Superconducting Artificial Atom | A number of superconducting qubits, such as the transmon or the phase qubit, have an energy level structure with small anharmonicity. This allows for convenient access of higher excited states with similar frequencies. However, special care has to be taken to avoid unwanted higher-level populations when using short con... | [
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3555448 | 1004.5485 | 2010-04-30 | The Normalized Graph Cut and Cheeger Constant: from Discrete to Continuous | Let M be a bounded domain of a Euclidian space with smooth boundary. We relate the Cheeger constant of M and the conductance of a neighborhood graph defined on a random sample from M. By restricting the minimization defining the latter over a particular class of subsets, we obtain consistency (after normalization) as t... | [
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210126710 | 1004.5538 | 2010-04-30 | Bayesian estimation of regularization and PSF parameters for Wiener-Hunt deconvolution | This paper tackles the problem of image deconvolution with joint estimation of PSF parameters and hyperparameters. Within a Bayesian framework, the solution is inferred via a global a posteriori law for unknown parameters and object. The estimate is chosen as the posterior mean, numerically calculated by means of a Mon... | [
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117577392 | 1005.0006 | 2010-04-30 | A fundamental relation between mass, SFR and metallicity in local and high redshift galaxies | We show that the mass-metallicity relation observed in the local universe is due to a more general relation between stellar mass M*, gas-phase metallicity and SFR. Local galaxies define a tight surface in this 3D space, the Fundamental Metallicity Relation (FMR), with a small residual dispersion of ~0.05 dex in metalli... | [
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17057365 | 1004.5559 | 2010-04-30 | A Direct Proof of the Bichteler--Dellacherie Theorem and Connections to Arbitrage | We give an elementary proof of the celebrated Bichteler-Dellacherie Theorem which states that the class of stochastic processes $S$ allowing for a useful integration theory consists precisely of those processes which can be written in the form $S=M+A$, where $M$ is a local martingale and $A$ is a finite variation proce... | [
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16838664 | 1004.5540 | 2010-04-30 | Strong Secrecy for Erasure Wiretap Channels | We show that duals of certain low-density parity-check (LDPC) codes, when used in a standard coset coding scheme, provide strong secrecy over the binary erasure wiretap channel (BEWC). This result hinges on a stopping set analysis of ensembles of LDPC codes with block length $n$ and girth $\geq 2k$, for some $k \geq 2$... | [
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14557886 | 1004.5588 | 2010-04-30 | On Achieving Local View Capacity Via Maximal Independent Graph Scheduling | "If we know more, we can achieve more." This adage also applies to communication networks, where more information about the network state translates into higher sumrates. In this paper, we formalize this increase of sum-rate with increased knowledge of the network state. The knowledge of network state is measured in te... | [
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18049829 | 1004.5600 | 2010-04-30 | On the (Im)possibility of Preserving Utility and Privacy in Personalized Social Recommendations | With the recent surge of social networks like Facebook, new forms of recommendations have become possible -- personalized recommendations of ads, content, and even new social and product connections based on one's social interactions. In this paper, we study whether "social recommendations", or recommendations that uti... | [
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10993263 | 1005.0117 | 2010-05-01 | On the Separation of Lossy Source-Network Coding and Channel Coding in Wireline Networks | This paper proves the separation between source-network coding and channel coding in networks of noisy, discrete, memoryless channels. We show that the set of achievable distortion matrices in delivering a family of dependent sources across such a network equals the set of achievable distortion matrices for delivering ... | [
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5348363 | 1005.0125 | 2010-05-01 | Adaptive Bases for Reinforcement Learning | We consider the problem of reinforcement learning using function approximation, where the approximating basis can change dynamically while interacting with the environment. A motivation for such an approach is maximizing the value function fitness to the problem faced. Three errors are considered: approximation square ... | [
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119201394 | 1005.0041 | 2010-05-01 | The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591 | The high-frequency-peaked BL Lacertae object RGB J0710+591 was observed in the very high-energy (VHE; E > 100 GeV) wave band by the VERITAS array of atmospheric Cherenkov telescopes. The observations, taken between 2008 December and 2009 March and totaling 22.1 hr, yield the discovery of VHE gamma rays from the source.... | [
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17057176 | 1005.0188 | 2010-05-02 | Generative and Latent Mean Map Kernels | We introduce two kernels that extend the mean map, which embeds probability measures in Hilbert spaces. The generative mean map kernel (GMMK) is a smooth similarity measure between probabilistic models. The latent mean map kernel (LMMK) generalizes the non-iid formulation of Hilbert space embeddings of empirical distri... | [
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10604852 | 1005.0168 | 2010-05-02 | Nonexistence of marginally trapped surfaces and geons in 2+1 gravity | We use existence results for Jang's equation and marginally outer trapped surfaces (MOTSs) in 2+1 gravity to obtain nonexistence of geons in 2+1 gravity. In particular, our results show that any 2+1 initial data set, which obeys the dominant energy condition with cosmological constant \Lambda \geq 0 and which satisfies... | [
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118442080 | 1005.0398 | 2010-05-03 | The Highest Resolution Mass Map of Galaxy Cluster Substructure To Date Without Assuming Light Traces Mass: LensPerfect Analysis of Abell 1689 | We present a strong lensing mass model of Abell 1689 which resolves substructures ~25 kpc across (including about ten individual galaxy subhalos) within the central ~400 kpc diameter. We achieve this resolution by perfectly reproducing the observed (strongly lensed) input positions of 168 multiple images of 55 knots re... | [
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14463568 | 1005.0208 | 2010-05-03 | Analysis of a Random Forests Model | Random forests are a scheme proposed by Leo Breiman in the 2000's for building a predictor ensemble with a set of decision trees that grow in randomly selected subspaces of data. Despite growing interest and practical use, there has been little exploration of the statistical properties of random forests, and little is ... | [
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27447055 | 1005.0343 | 2010-05-03 | Results of the BiPo-1 prototype for radiopurity measurements for the SuperNEMO double beta decay source foils | The development of BiPo detectors is dedicated to the measurement of extremely high radiopurity in $^{208}$Tl and $^{214}$Bi for the SuperNEMO double beta decay source foils. A modular prototype, called BiPo-1, with 0.8 $m^2$ of sensitive surface area, has been running in the Modane Underground Laboratory since Februar... | [
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118404468 | 1005.0290 | 2010-05-03 | Dynamics of two coupled vortices in a spin valve nanopillar excited by spin transfer torque | We investigate the dynamics of two coupled vortices driven by spin transfer. We are able to independently control with current and perpendicular field, and to detect, the respective chiralities and polarities of the two vortices. For current densities above $J=5.7*10^7 A/cm^2$, a highly coherent signal (linewidth down ... | [
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9177245 | 1005.0404 | 2010-05-03 | Approximate Capacity of Gaussian Interference-Relay Networks with Weak Cross Links | In this paper we study a Gaussian relay-interference network, in which relay (helper) nodes are to facilitate competing information flows over a wireless network. We focus on a two-stage relay-interference network where there are weak cross-links, causing the networks to behave like a chain of Z Gaussian channels. For ... | [
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2002712 | 1005.0419 | 2010-05-03 | Capacity-Equivocation Region of the Gaussian MIMO Wiretap Channel | We study the Gaussian multiple-input multiple-output (MIMO) wiretap channel, which consists of a transmitter, a legitimate user, and an eavesdropper. In this channel, the transmitter sends a common message to both the legitimate user and the eavesdropper. In addition to this common message, the legitimate user receives... | [
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9208217 | 1005.0416 | 2010-05-03 | Incremental Sampling-based Algorithms for Optimal Motion Planning | During the last decade, incremental sampling-based motion planning algorithms, such as the Rapidly-exploring Random Trees (RRTs) have been shown to work well in practice and to possess theoretical guarantees such as probabilistic completeness. However, no theoretical bounds on the quality of the solution obtained by th... | [
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8612746 | 1005.0202 | 2010-05-03 | Dictionary Optimization for Block-Sparse Representations | Recent work has demonstrated that using a carefully designed dictionary instead of a predefined one, can improve the sparsity in jointly representing a class of signals. This has motivated the derivation of learning methods for designing a dictionary which leads to the sparsest representation for a given set of signals... | [
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828979 | 1005.0437 | 2010-05-03 | A Unifying View of Multiple Kernel Learning | Recent research on multiple kernel learning has lead to a number of approaches for combining kernels in regularized risk minimization. The proposed approaches include different formulations of objectives and varying regularization strategies. In this paper we present a unifying general optimization criterion for multip... | [
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119276959 | 1005.0242 | 2010-05-03 | A numerical study of the effects of primordial non-Gaussianities on weak lensing statistics | While usually cosmological initial conditions are assumed to be Gaussian, inflationary theories can predict a certain amount of primordial non-Gaussianity which can have an impact on the statistical properties of the lensing observables. In order to evaluate this effect, we build a large set of realistic maps of differ... | [
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118369933 | 1005.0397 | 2010-05-03 | Combined PDF and strong coupling uncertainties at the LHC with NNPDF2.0 | We present predictions for relevant LHC observables obtained with the NNPDF2.0 set. We compute the combined PDFs uncertainties on these observables, and show that combining errors in quadrature yields an excellent approximation to exact error propagation. We then compare the NNPDF2.0 results to the other global PDF fit... | [
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44556047 | 1005.0375 | 2010-05-03 | Performance Analysis of Cognitive Radio Systems under QoS Constraints and Channel Uncertainty | In this paper, performance of cognitive transmission over time-selective flat fading channels is studied under quality of service (QoS) constraints and channel uncertainty. Cognitive secondary users (SUs) are assumed to initially perform channel sensing to detect the activities of the primary users, and then attempt to... | [
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1717422 | 1203.0481 | 2010-05-03 | The chaos game on a general iterated function system from a topological point of view | We investigate combinatorial issues relating to the use of random orbit approximations to the attractor of an iterated function system with the aim of clarifying the role of the stochastic process during generation the orbit. A Baire category counterpart of almost sure convergence is presented; and a link between topol... | [
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16692575 | 1005.0418 | 2010-05-03 | Lower Bounds on Near Neighbor Search via Metric Expansion | In this paper we show how the complexity of performing nearest neighbor (NNS) search on a metric space is related to the expansion of the metric space. Given a metric space we look at the graph obtained by connecting every pair of points within a certain distance $r$ . We then look at various notions of expansion in th... | [
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... | null |
119197701 | 1005.0597 | 2010-05-04 | Perturbations of anti-de Sitter black holes | I review perturbations of black holes in asymptotically anti-de Sitter space. I show how the quasi-normal modes governing these perturbations can be calculated analytically and discuss the implications on the hydrodynamics of gauge theory fluids per the AdS/CFT correspondence. I also discuss phase transitions of hairy ... | [
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13109568 | 1005.0677 | 2010-05-04 | The Enigma of CDMA Revisited | In this paper, we explore the mystery of synchronous CDMA as applied to wireless and optical communication systems under very general settings for the user symbols and the signature matrix entries. The channel is modeled with real/complex additive noise of arbitrary distribution. Two problems are addressed. The first p... | [
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"num_papers": null... | null |
18845038 | 1005.0498 | 2010-05-04 | Classes of lower bounds on outage error probability and MSE in Bayesian parameter estimation | In this paper, new classes of lower bounds on the outage error probability and on the mean-square-error (MSE) in Bayesian parameter estimation are proposed. The minima of the h-outage error probability and the MSE are obtained by the generalized maximum a-posteriori probability and the minimum MSE (MMSE) estimators, re... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t routtenberg_1",
"name": "Tirza Routtenberg",
"publication_history": null,
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"num_papers": null,
"num_citations": null
},
{
"author_id": "j tabrikian_1",
"name": "Joseph Tabrikian",
"publication_history": null,
"h_index": null,
"num_pap... | null |
6422728 | 1005.0644 | 2010-05-04 | Improved Direct Product Theorems for Randomized Query Complexity | The direct product problem is a fundamental question in complexity theory which seeks to understand how the difficulty of computing a function on each of k independent inputs scales with k. We prove the following direct product theorem (DPT) for query complexity: if every T-query algorithm has success probability at mo... | [
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8251817 | 1005.0632 | 2010-05-04 | SPDE in Hilbert Space with Locally Monotone Coefficients | In this paper we prove the existence and uniqueness of strong solutions for SPDE in Hilbert space with locally monotone coefficients, which is a generalization of the classical result of Krylov and Rozovskii for monotone coefficients. Our main result can be applied to different types of SPDEs such as stochastic reactio... | [
"math.PR",
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118529632 | 1005.0479 | 2010-05-04 | Updated constraints on the cosmic string tension | We re-examine the constraints on the cosmic string tension from Cosmic Microwave Background (CMB) and matter power spectra, and also from limits on a stochastic background of gravitational waves provided by pulsar timing. We discuss the different approaches to modeling string evolution and radiation. In particular, we ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
59034095 | 1005.0509 | 2010-05-04 | A fundamental plane for field star-forming galaxies | Star formation rate (SFR), metallicity and stellar mass are within the important parameters of star--forming galaxies that characterize their formation and evolution. They are known to be related to each other at low and high redshift in the mass--metallicity, mass--SFR, and metallicity--SFR relations. In this work we ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6861869 | 1005.0532 | 2010-05-04 | Image Transmission Through an Opaque Material | Optical imaging relies on the ability to illuminate an object, collect and analyze the light it scatters or transmits. Propagation through complex media such as biological tissues was so far believed to degrade the attainable depth as well as the resolution for imaging because of multiple scattering. This is why such m... | [
"physics.optics"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
31177234 | 1005.0575 | 2010-05-04 | Halo Velocity Groups in the Pisces Overdensity | We report spectroscopic observations with the Gemini South Telescope of 5 faint V~20 RR Lyrae stars associated with the Pisces overdensity. At a heliocentric and galactocentric distance of ~80 kpc, this is the most distant substructure in the Galactic halo known to date. We combined our observations with literature dat... | [
"astro-ph.GA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7036162 | 1005.0426 | 2010-05-04 | Security in Distributed Storage Systems by Communicating a Logarithmic Number of Bits | We investigate the problem of maintaining an encoded distributed storage system when some nodes contain adversarial errors. Using the error-correction capabilities that are built into the existing redundancy of the system, we propose a simple linear hashing scheme to detect errors in the storage nodes. Our main result ... | [
"cs.CR",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t dikaliotis_1",
"name": "Theodoros [\"K.\"] Dikaliotis",
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"num_citations": null
},
{
"author_id": "a dimakis_1",
"name": "Alexandros [\"G.\"] Dimakis",
"publication_history": null,
"h_index"... | null |
12365986 | 1005.0698 | 2010-05-05 | Analysis of Brownian Dynamics Simulations of Reversible Bimolecular Reactions | A class of Brownian dynamics algorithms for stochastic reaction-diffusion models which include reversible bimolecular reactions is presented and analyzed. The method is a generalization of the $\lambda$--$\newrho$ model for irreversible bimolecular reactions which was introduced in [arXiv:0903.1298]. The formulae relat... | [
"physics.bio-ph",
"physics.chem-ph",
"q-bio.QM"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j lipková_1",
"name": "Jana Lipková",
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},
{
"author_id": "k zygalakis_1",
"name": "Konstantinos [\"C.\"] Zygalakis",
"publication_history": null,
"h_index": null,
"n... | null |
17705104 | 1005.0812 | 2010-05-05 | Efficient Monte Carlo for high excursions of Gaussian random fields | Our focus is on the design and analysis of efficient Monte Carlo methods for computing tail probabilities for the suprema of Gaussian random fields, along with conditional expectations of functionals of the fields given the existence of excursions above high levels, b. Na\"{i}ve Monte Carlo takes an exponential, in b, ... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19010703 | 1005.0855 | 2010-05-05 | On Capacity Scaling of Underwater Networks: An Information-Theoretic Perspective | Capacity scaling laws are analyzed in an underwater acoustic network with $n$ regularly located nodes on a square. A narrow-band model is assumed where the carrier frequency is allowed to scale as a function of $n$. In the network, we characterize an attenuation parameter that depends on the frequency scaling as well a... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "6643117",
"num_citations": null
}
] | [
{
"author_id": "w shin_6",
"name": "Won-Yong Shin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d lucani_1",
"name": "Daniel [\"Enrique\"] Lucani",
"publication_history": null,
"h_index": null,
"num_papers... | null |
118377625 | 1005.0811 | 2010-05-05 | The Equation of State from Observed Masses and Radii of Neutron Stars | We determine an empirical dense matter equation of state from a heterogeneous dataset of six neutron stars: three type I X-ray bursters with photospheric radius expansion, studied by Ozel et al., and three transient low-mass X-ray binaries. We critically assess the mass and radius determinations from the X-ray burst so... | [
"astro-ph.HE",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119277749 | 1005.0764 | 2010-05-05 | Face amplitude of spinfoam quantum gravity | The structure of the boundary Hilbert-space and the condition that amplitudes behave appropriately under compositions determine the face amplitude of a spinfoam theory. In quantum gravity the face amplitude turns out to be simpler than originally thought. | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e bianchi_1",
"name": "Eugenio Bianchi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d regoli_1",
"name": "Daniele Regoli",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
118362723 | 1005.0763 | 2010-05-05 | Spectral theorem for the Lindblad equation for quadratic open fermionic systems | The spectral theorem is proven for the quantum dynamics of quadratic open systems of n fermions described by the Lindblad equation. Invariant eigenspaces of the many-body Liouvillean dynamics and their largest Jordan blocks are explicitly constructed for all eigenvalues. For eigenvalue zero we describe an algebraic pro... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15892461 | 1005.0659 | 2010-05-05 | Massive star formation in Wolf-Rayet galaxies. V: Star formation rates, masses and the importance of galaxy interactions | (Abridged) We have performed a comprehensive analysis of a sample of 20 starburst galaxies, most of them classified as Wolf-Rayet galaxies. In this paper, the last of the series, we analyze the global properties of our galaxy sample using multiwavelength data (X-ray, FUV, optical, NIR, FIR, and radio). The agreement be... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6121876 | 1005.0747 | 2010-05-05 | Hybrid Numerical Solution of the Chemical Master Equation | We present a numerical approximation technique for the analysis of continuous-time Markov chains that describe networks of biochemical reactions and play an important role in the stochastic modeling of biological systems. Our approach is based on the construction of a stochastic hybrid model in which certain discrete r... | [
"q-bio.QM",
"cs.NA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t henzinger_1",
"name": "Thomas [\"A.\"] Henzinger",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l mikeev_0",
"name": "Linar Mikeev",
"publication_history": null,
"h_index": null,
"num_pape... | null |
16274764 | 1005.0693 | 2010-05-05 | Adaptive MAC Protocols Using Memory for Networks with Critical Traffic | We consider wireless communication networks where network users are subject to critical events such as emergencies and crises. If a critical event occurs to a user, the user needs to send critical traffic as early as possible. However, most existing medium access control (MAC) protocols are not adequate to meet the urg... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "443976",
"num_citations": null
}
] | [
{
"author_id": "j park_116",
"name": "Jaeok Park",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m schaar_1",
"name": "Mihaela [\"van\",\"der\"] Schaar",
"publication_history": null,
"h_index": null,
"num_pa... | null |
4040399 | 1005.0734 | 2010-05-05 | An efficient approximation to the correlated Nakagami-m sums and its application in equal gain diversity receivers | There are several cases in wireless communications theory where the statistics of the sum of independent or correlated Nakagami-m random variables (RVs) is necessary to be known. However, a closed-form solution to the distribution of this sum does not exist when the number of constituent RVs exceeds two, even for the s... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n zlatanov_1",
"name": "N. Zlatanov",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "z hadzi-velkov_1",
"name": "Zoran Hadzi-Velkov",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
1662315 | 1005.0858 | 2010-05-05 | Randomized hybrid linear modeling by local best-fit flats | The hybrid linear modeling problem is to identify a set of d-dimensional affine sets in a D-dimensional Euclidean space. It arises, for example, in object tracking and structure from motion. The hybrid linear model can be considered as the second simplest (behind linear) manifold model of data. In this paper we will pr... | [
"cs.CV"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "t zhang_9",
"name": "Teng Zhang",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a szlam_1",
"name": "Arthur Szlam",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
16004606 | 1005.0880 | 2010-05-05 | Structural Solutions For Additively Coupled Sum Constrained Games | We propose and analyze a broad family of games played by resource-constrained players, which are characterized by the following central features: 1) each user has a multi-dimensional action space, subject to a single sum resource constraint; 2) each user's utility in a particular dimension depends on an additive coupli... | [
"cs.GT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "3261872",
"num_citations": null
}
] | [
{
"author_id": "y su_75",
"name": "Yi Su",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m schaar_1",
"name": "Mihaela [\"van\",\"der\"] Schaar",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
56321748 | 1005.0779 | 2010-05-05 | Gravitational Waves from Core Collapse Supernovae | We present the gravitational wave signatures for a suite of axisymmetric core collapse supernova models with progenitors masses between 12 and 25 solar masses. These models are distinguished by the fact they explode and contain essential physics (in particular, multi-frequency neutrino transport and general relativity)... | [
"gr-qc",
"astro-ph.HE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2290660 | 1005.0921 | 2010-05-06 | No embedding of the automorphisms of a topological space into a compact metric space endows them with a composition that passes to the limit | The Hausdorff distance, the Gromov-Hausdorff, the Fr\'echet and the natural pseudo-distances are instances of dissimilarity measures widely used in shape comparison. We show that they share the property of being defined as $\inf_\rho F(\rho)$ where $F$ is a suitable functional and $\rho$ varies in a set of corresponden... | [
"cs.CG",
"math.MG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p frosini_1",
"name": "Patrizio Frosini",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "c landi_1",
"name": "Claudia Landi",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
11478817 | 1005.1096 | 2010-05-06 | Evidence for direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B-+ --> D(*) K(*)-+ decays | We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle $\gamma$ through a Dalitz plot analysis of neutral $D$ meson decays to $K_S^0 \pi^+ \pi^-$ and $K_S^0 K^+ K^-$ produced in the processes $B^\mp \to D K^\mp$, $B^\mp \to D^{*} K^\mp$ with $D^* \to D \pi^0,D \gamma$, and $B^\mp \to D K^{*\mp}$ ... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9127197 | 1005.1009 | 2010-05-06 | Min-Rank Conjecture for Log-Depth Circuits | A completion of an m-by-n matrix A with entries in {0,1,*} is obtained by setting all *-entries to constants 0 or 1. A system of semi-linear equations over GF(2) has the form Mx=f(x), where M is a completion of A and f:{0,1}^n --> {0,1}^m is an operator, the i-th coordinate of which can only depend on variables corresp... | [
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118305155 | 1005.0943 | 2010-05-06 | Reverse Line Graph Construction: The Matrix Relabeling Algorithm MARINLINGA Versus Roussopoulos's Algorithm | We propose a new algorithm MARINLINGA for reverse line graph computation, i.e., constructing the original graph from a given line graph. Based on the completely new and simpler principle of link relabeling and endnode recognition, MARINLINGA does not rely on Whitney's theorem while all previous algorithms do. MARINLING... | [
"math.CO",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d liu_124",
"name": "D. Liu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s trajanovski_1",
"name": "Stojan Trajanovski",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119206428 | 1005.0901 | 2010-05-06 | Dependence of the optical/UV variability on the emission line properties and Eddington ratio in active galactic nuclei | The dependence of the long-term optical/UV variability on the spectral and the fundamental physical parameters for radio-quiet active galactic nuclei (AGNs) is investigated. The multi-epoch repeated photometric scanning data in the Stripe-82 region of the Sloan Digital Sky Survey (SDSS) are exploited for two comparativ... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55405681 | 1005.1048 | 2010-05-06 | Warm molecular gas and kinematics in the disc around HD 100546 | The disc around the Herbig Ae/Be star HD 100546 is one of the most extensively studied discs in the southern sky. Although there is a wealth of information about its dust content and composition, not much is known about its gas and large scale kinematics. We detect and study the molecular gas in the disc at spatial res... | [
"astro-ph.EP",
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14722096 | 1005.0934 | 2010-05-06 | Non-universal results induced by diversity distribution in coupled excitable systems | We consider a system of globally coupled active rotators near the excitable regime. The system displays a transition to a state of collective firing induced by disorder. We show that this transition is found generically for any diversity distribution with well defined moments. Singularly, for the Lorentzian distributio... | [
"cond-mat.stat-mech",
"nlin.CD"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l lafuerza_1",
"name": "Luis [\"F.\"] Lafuerza",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p colet_1",
"name": "Pere Colet",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
119681023 | 1005.1099 | 2010-05-06 | The affine transform formula for affine jump-diffusions with a general closed convex state space | We establish existence of exponential moments and the validity of the affine transform formula for affine jump-diffusions with a general closed convex state space. This extends known results for affine jump-diffusions with a canonical state space. The key step is to prove the martingale property of an exponential local... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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