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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2374181 | 1106.4863 | 2011-06-23 | Monte Carlo Methods for Tempo Tracking and Rhythm Quantization | We present a probabilistic generative model for timing deviations in expressive music performance. The structure of the proposed model is equivalent to a switching state space model. The switch variables correspond to discrete note locations as in a musical score. The continuous hidden variables denote the tempo. We fo... | [
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42216143 | 1106.4613 | 2011-06-23 | Fast supersymmetry phenomenology at the Large Hadron Collider using machine learning techniques | A pressing problem for supersymmetry (SUSY) phenomenologists is how to incorporate Large Hadron Collider search results into parameter fits designed to measure or constrain the SUSY parameters. Owing to the computational expense of fully simulating lots of points in a generic SUSY space to aid the calculation of the li... | [
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118546600 | 1106.4772 | 2011-06-23 | Symmetry protected topological orders and the group cohomology of their symmetry group | Symmetry protected topological (SPT) phases are gapped short-range-entangled quantum phases with a symmetry G. They can all be smoothly connected to the same trivial product state if we break the symmetry. The Haldane phase of spin-1 chain is the first example of SPT phase which is protected by SO(3) spin rotation symm... | [
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53572374 | 1106.4826 | 2011-06-23 | Holographic Renormalization of general dilaton-axion gravity | We consider a very general dilaton-axion system coupled to Einstein-Hilbert gravity in arbitrary dimension and we carry out holographic renormalization for any dimension up to and including five dimensions. This is achieved by developing a new systematic algorithm for iteratively solving the radial Hamilton-Jacobi equa... | [
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2515179 | 1106.4987 | 2011-06-24 | The Cosparse Analysis Model and Algorithms | After a decade of extensive study of the sparse representation synthesis model, we can safely say that this is a mature and stable field, with clear theoretical foundations, and appealing applications. Alongside this approach, there is an analysis counterpart model, which, despite its similarity to the synthesis altern... | [
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3999407 | 1106.5037 | 2011-06-24 | Fast and Efficient Compressive Sensing using Structurally Random Matrices | This paper introduces a new framework of fast and efficient sensing matrices for practical compressive sensing, called Structurally Random Matrix (SRM). In the proposed framework, we pre-randomize a sensing signal by scrambling its samples or flipping its sample signs and then fast-transform the randomized samples and ... | [
"cs.IT",
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9598254 | 1106.4910 | 2011-06-24 | On Projections of Metric Spaces | Let $X$ be a metric space and let $\mu$ be a probability measure on it. Consider a Lipschitz map $T: X \rightarrow \Rn$, with Lipschitz constant $\leq 1$. Then one can ask whether the image $TX$ can have large projections on many directions. For a large class of spaces $X$, we show that there are directions $\phi \in \... | [
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73642462 | 1106.5005 | 2011-06-24 | Improved high-fidelity transport of trapped-ion qubits through a multi-dimensional array | We have demonstrated transport of Be+ ions through a 2D Paul-trap array that incorporates an X-junction, while maintaining the ions near the motional ground-state of the confining potential well. We expand on the first report of the experiment [1], including a detailed discussion of how the transport potentials were ca... | [
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"name": "Christian Ospelkaus",
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... | null |
8951880 | 1106.5053 | 2011-06-24 | Modeling Social Networks with Node Attributes using the Multiplicative Attribute Graph Model | Networks arising from social, technological and natural domains exhibit rich connectivity patterns and nodes in such networks are often labeled with attributes or features. We address the question of modeling the structure of networks where nodes have attribute information. We present a Multiplicative Attribute Graph (... | [
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"name": "Jure Leskovec",
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119222618 | 1106.5141 | 2011-06-25 | Spin-3 Topological Massive Gravity | In this paper, we study the spin-3 topological massive gravity(TMG), paying special attention to its properties at the chiral point. We propose an action describing the high spin fields coupled to TMG. We discuss the spin-3 fluctuations around the AdS$_3$ vacuum and find that there is an extra local massive mode, besid... | [
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28262195 | 1106.5106 | 2011-06-25 | Stochastic algorithms for computing means of probability measures | Consider a probability measure supported by a regular geodesic ball in a manifold. For any p larger than or equal to 1 we define a stochastic algorithm which converges almost surely to the p-mean of the measure. Assuming furthermore that the functional to minimize is regular around the p-mean, we prove that a natural r... | [
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1402582 | 1106.5177 | 2011-06-25 | Coherence-Pattern Guided Compressive Sensing with Unresolved Grids | Highly coherent sensing matrices arise in discretization of continuum imaging problems such as radar and medical imaging when the grid spacing is below the Rayleigh threshold. Algorithms based on techniques of band exclusion (BE) and local optimization (LO) are proposed to deal with such coherent sensing matrices. Thes... | [
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45032230 | 1106.5134 | 2011-06-25 | On the role of a priori knowledge in the optimization of quantum information processing | This paper explores the role of a priori knowledge in the optimization of quantum information processing by investigating optimum unambiguous discrimination problems for both the qubit and qutrit states. In general, a priori knowledge in optimum unambiguous discrimination problems can be classed into two types: a prior... | [
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15167089 | 1106.5213 | 2011-06-26 | Personalised Travel Recommendation based on Location Co-occurrence | We propose a new task of recommending touristic locations based on a user's visiting history in a geographically remote region. This can be used to plan a touristic visit to a new city or country, or by travel agencies to provide personalised travel deals. A set of geotags is used to compute a location similarity model... | [
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119132422 | 1106.5247 | 2011-06-26 | On Some Explicit Formulas for Bernoulli Numbers and Polynomials | We provide direct elementary proofs of several explicit expressions for Bernoulli numbers and Bernoulli polynomials. As a byproduct of our method of proof, we provide natural definitions for generalized Bernoulli numbers and polynomials of complex order. | [
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1482411 | 1106.5312 | 2011-06-26 | Manipulation of Nanson's and Baldwin's Rules | Nanson's and Baldwin's voting rules select a winner by successively eliminating candidates with low Borda scores. We show that these rules have a number of desirable computational properties. In particular, with unweighted votes, it is NP-hard to manipulate either rule with one manipulator, whilst with weighted votes, ... | [
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3056098 | 1106.5264 | 2011-06-26 | Acquiring Correct Knowledge for Natural Language Generation | Natural language generation (NLG) systems are computer software systems that produce texts in English and other human languages, often from non-linguistic input data. NLG systems, like most AI systems, need substantial amounts of knowledge. However, our experience in two NLG projects suggests that it is difficult to ac... | [
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2919826 | 1106.5236 | 2011-06-26 | A General Framework for Structured Sparsity via Proximal Optimization | We study a generalized framework for structured sparsity. It extends the well-known methods of Lasso and Group Lasso by incorporating additional constraints on the variables as part of a convex optimization problem. This framework provides a straightforward way of favouring prescribed sparsity patterns, such as orderin... | [
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"author_id": "j morales_6",
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8225297 | 1106.5260 | 2011-06-26 | SAPA: A Multi-objective Metric Temporal Planner | SAPA is a domain-independent heuristic forward chaining planner that can handle durative actions, metric resource constraints, and deadline goals. It is designed to be capable of handling the multi-objective nature of metric temporal planning. Our technical contributions include (i) planning-graph based methods for der... | [
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25426453 | 1106.5198 | 2011-06-26 | The etale groupoid of an inverse semigroup as a groupoid of filters | Paterson showed how to construct an etale groupoid from an inverse semigroup using ideas from functional analysis. This construction was later simplified by Lenz. We show that Lenz's construction can itself be further simplified by using filters: the topological groupoid associated with an inverse semigroup is precisel... | [
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5467588 | 1106.5269 | 2011-06-26 | Optimal Schedules for Parallelizing Anytime Algorithms: The Case of Shared Resources | The performance of anytime algorithms can be improved by simultaneously solving several instances of algorithm-problem pairs. These pairs may include different instances of a problem (such as starting from a different initial state), different algorithms (if several alternatives exist), or several runs of the same algo... | [
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8982557 | 1106.5271 | 2011-06-26 | The Metric-FF Planning System: Translating "Ignoring Delete Lists" to Numeric State Variables | Planning with numeric state variables has been a challenge for many years, and was a part of the 3rd International Planning Competition (IPC-3). Currently one of the most popular and successful algorithmic techniques in STRIPS planning is to guide search by a heuristic function, where the heuristic is based on relaxing... | [
"cs.AI"
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15648605 | 1106.5267 | 2011-06-26 | Potential-Based Shaping and Q-Value Initialization are Equivalent | Shaping has proven to be a powerful but precarious means of improving reinforcement learning performance. Ng, Harada, and Russell (1999) proposed the potential-based shaping algorithm for adding shaping rewards in a way that guarantees the learner will learn optimal behavior. In this note, we prove certain similarities... | [
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118424646 | 1106.5374 | 2011-06-27 | The nucleon axial mass and the MiniBooNE Quasielastic Neutrino-Nucleus Scattering problem | The charged-current double differential neutrino cross section, measured by the MiniBooNE Collaboration, has been analyzed using a microscopical model that accounts for, among other nuclear effects, long range nuclear (RPA) correlations and multinucleon scattering. We find that MiniBooNE data are fully compatible with ... | [
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] | null | null | null |
37812735 | 1106.5507 | 2011-06-27 | Galaxy Bias and non-Linear Structure Formation in General Relativity | Length scales probed by large scale structure surveys are becoming closer to the horizon scale. Further, it has been recently understood that non-Gaussianity in the initial conditions could show up in a scale dependence of the bias of galaxies at the largest distances. It is therefore important to include General Relat... | [
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... | null |
9103468 | 1106.5321 | 2011-06-27 | Uncovering Social Network Sybils in the Wild | Sybil accounts are fake identities created to unfairly increase the power or resources of a single malicious user. Researchers have long known about the existence of Sybil accounts in online communities such as file-sharing systems, but have not been able to perform large scale measurements to detect them or measure th... | [
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118832510 | 1106.5410 | 2011-06-27 | Tinkertoys for the D_N series | We describe a procedure for classifying 4D N=2 superconformal theories of the type introduced by Davide Gaiotto. Any punctured curve, C, on which the 6D (2,0) SCFT is compactified, may be decomposed into 3-punctured spheres, connected by cylinders. The 4D theories, which arise, can be characterized by listing the "matt... | [
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399150 | 1106.5551 | 2011-06-27 | Labeling 3D scenes for Personal Assistant Robots | Inexpensive RGB-D cameras that give an RGB image together with depth data have become widely available. We use this data to build 3D point clouds of a full scene. In this paper, we address the task of labeling objects in this 3D point cloud of a complete indoor scene such as an office. We propose a graphical model that... | [
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5773523 | 1106.5448 | 2011-06-27 | Dominating Manipulations in Voting with Partial Information | We consider manipulation problems when the manipulator only has partial information about the votes of the nonmanipulators. Such partial information is described by an information set, which is the set of profiles of the nonmanipulators that are indistinguishable to the manipulator. Given such an information set, a dom... | [
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118538371 | 1106.5491 | 2011-06-27 | Automating Discovery and Classification of Transients and Variable Stars in the Synoptic Survey Era | The rate of image acquisition in modern synoptic imaging surveys has already begun to outpace the feasibility of keeping astronomers in the real-time discovery and classification loop. Here we present the inner workings of a framework, based on machine-learning algorithms, that captures expert training and ground-truth... | [
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17184609 | 1106.5305 | 2011-06-27 | The Theory of the Interleaving Distance on Multidimensional Persistence Modules | In 2009, Chazal et al. introduced $\epsilon$-interleavings of persistence modules. $\epsilon$-interleavings induce a pseudometric $d_I$ on (isomorphism classes of) persistence modules, the interleaving distance. The definitions of $\epsilon$-interleavings and $d_I$ generalize readily to multidimensional persistence mod... | [
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52460 | 1106.5387 | 2011-06-27 | Subspace Properties of Network Coding and their Applications | Systems that employ network coding for content distribution convey to the receivers linear combinations of the source packets. If we assume randomized network coding, during this process the network nodes collect random subspaces of the space spanned by the source packets. We establish several fundamental properties of... | [
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"author_id": "c fragouli_1",
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... | null |
16618395 | 1106.5362 | 2011-06-27 | Detection Thresholds and Bias Correction in Polarized Intensity | Detection thresholds in polarized intensity and polarization bias correction are investigated for surveys where the polarization information is obtained from RM synthesis. Considering unresolved sources with a single rotation measure, a detection threshold of $8 \sigma_{QU}$ applied to the Faraday spectrum will retriev... | [
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15386472 | 1106.5626 | 2011-06-28 | A distributed control strategy for reactive power compensation in smart microgrids | We consider the problem of optimal reactive power compensation for the minimization of power distribution losses in a smart microgrid. We first propose an approximate model for the power distribution network, which allows us to cast the problem into the class of convex quadratic, linearly constrained, optimization prob... | [
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119244085 | 1106.5788 | 2011-06-28 | Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC | We compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In parti... | [
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17450555 | 1106.5793 | 2011-06-28 | A Replica Inference Approach to Unsupervised Multi-Scale Image Segmentation | We apply a replica inference based Potts model method to unsupervised image segmentation on multiple scales. This approach was inspired by the statistical mechanics problem of "community detection" and its phase diagram. Specifically, the problem is cast as identifying tightly bound clusters ("communities" or "solutes"... | [
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14893437 | 1106.5841 | 2011-06-28 | Capacity Bounds of Finite Dimensional CDMA Systems with Fading/Near-Far Effects and Power Control | This paper deals with fading and/or near-far effects with or without power control on the evaluation of the sum capacity of finite dimensional Code Division Multiple Access (CDMA) systems for binary and finite nonbinary inputs and signature matrices. Important results of this paper are that the knowledge of the receive... | [
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7194970 | 1106.5723 | 2011-06-28 | The inverse moment problem for convex polytopes | The goal of this paper is to present a general and novel approach for the reconstruction of any convex d-dimensional polytope P, from knowledge of its moments. In particular, we show that the vertices of an N-vertex polytope in R^d can be reconstructed from the knowledge of O(DN) axial moments (w.r.t. to an unknown pol... | [
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37000791 | 1106.5739 | 2011-06-28 | CHAPLIN - Complex Harmonic Polylogarithms in Fortran | We present a new Fortran library to evaluate all harmonic polylogarithms up to weight four numerically for any complex argument. The algorithm is based on a reduction of harmonic polylogarithms up to weight four to a minimal set of basis functions that are computed numerically using series expansions allowing for fast ... | [
"hep-ph"
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195346828 | 1106.5714 | 2011-06-28 | Non-parametric change-point detection using string matching algorithms | Given the output of a data source taking values in a finite alphabet, we wish to detect change-points, that is times when the statistical properties of the source change. Motivated by ideas of match lengths in information theory, we introduce a novel non-parametric estimator which we call CRECHE (CRossings Enumeration ... | [
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11457086 | 1106.5799 | 2011-06-28 | Kramers' law: Validity, derivations and generalisations | Kramers' law describes the mean transition time of an overdamped Brownian particle between local minima in a potential landscape. We review different approaches that have been followed to obtain a mathematically rigorous proof of this formula. We also discuss some generalisations, and a case in which Kramers' law is no... | [
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2334833 | 1106.5644 | 2011-06-28 | The ADS in the Information Age - Impact on Discovery | The SAO/NASA Astrophysics Data System (ADS) grew up with and has been riding the waves of the Information Age, closely monitoring and anticipating the needs of its end-users. By now, all professional astronomers are using the ADS on a daily basis, and a substantial fraction have been using it for their entire professio... | [
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15007054 | 1106.5779 | 2011-06-28 | Efficient Gaussian Process Regression for Large Data Sets | Gaussian processes (GPs) are widely used in nonparametric regression, classification and spatio-temporal modeling, motivated in part by a rich literature on theoretical properties. However, a well known drawback of GPs that limits their use is the expensive computation, typically O($n^3$) in performing the necessary ma... | [
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7110278 | 1106.5742 | 2011-06-28 | Wireless Network Coding with Local Network Views: Coded Layer Scheduling | One of the fundamental challenges in the design of distributed wireless networks is the large dynamic range of network state. Since continuous tracking of global network state at all nodes is practically impossible, nodes can only acquire limited local views of the whole network to design their transmission strategies.... | [
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6807074 | 1106.5829 | 2011-06-28 | Active Classification: Theory and Application to Underwater Inspection | We discuss the problem in which an autonomous vehicle must classify an object based on multiple views. We focus on the active classification setting, where the vehicle controls which views to select to best perform the classification. The problem is formulated as an extension to Bayesian active learning, and we show co... | [
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73677891 | 1106.5758 | 2011-06-28 | Distance covariance in metric spaces | We extend the theory of distance (Brownian) covariance from Euclidean spaces, where it was introduced by Sz\'{e}kely, Rizzo and Bakirov, to general metric spaces. We show that for testing independence, it is necessary and sufficient that the metric space be of strong negative type. In particular, we show that this hold... | [
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15545256 | 1106.5648 | 2011-06-28 | Joint LDPC and Physical-layer Network Coding for Asynchronous Bi-directional Relaying | In practical asynchronous bi-directional relaying, symbols transmitted by two sources cannot arrive at the relay with perfect frame and symbol alignments and the asynchronous multiple-access channel (MAC) should be seriously considered. Recently, Lu et al. proposed a Tanner-graph representation of the symbol-asynchrono... | [
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] | null | [
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6108215 | 1106.5730 | 2011-06-28 | HOGWILD!: A Lock-Free Approach to Parallelizing Stochastic Gradient Descent | Stochastic Gradient Descent (SGD) is a popular algorithm that can achieve state-of-the-art performance on a variety of machine learning tasks. Several researchers have recently proposed schemes to parallelize SGD, but all require performance-destroying memory locking and synchronization. This work aims to show using no... | [
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119204307 | 1106.5756 | 2011-06-28 | Multipartite entanglement detection from correlation tensors | We introduce a general framework for detecting genuine multipartite entanglement and non full-separability in multipartite quantum systems of arbitrary dimensions based on correlation tensors. Regarding genuine multipartite entanglement our conditions are comparable to previous approaches in the case of qubits while th... | [
"quant-ph"
] | null | [
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] | null | null | null |
15281081 | 1106.5941 | 2011-06-29 | Split Hamiltonian Monte Carlo | We show how the Hamiltonian Monte Carlo algorithm can sometimes be speeded up by "splitting" the Hamiltonian in a way that allows much of the movement around the state space to be done at low computational cost. One context where this is possible is when the log density of the distribution of interest (the potential en... | [
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118618268 | 1106.6055 | 2011-06-29 | Searching for z~7.7 Lyman Alpha Emitters in the COSMOS Field with NEWFIRM | The study of Ly-alpha emission in the high-redshift universe is a useful probe of the epoch of reionization, as the Ly-alpha line should be attenuated by the intergalactic medium (IGM) at low to moderate neutral hydrogen fractions. Here we present the results of a deep and wide imaging search for Ly-alpha emitters in t... | [
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14064322 | 1106.6102 | 2011-06-29 | Tight Approximations of Dynamic Risk Measures | This paper compares two different frameworks recently introduced in the literature for measuring risk in a multi-period setting. The first corresponds to applying a single coherent risk measure to the cumulative future costs, while the second involves applying a composition of one-step coherent risk mappings. We summar... | [
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356311 | 1106.5998 | 2011-06-29 | The 3rd International Planning Competition: Results and Analysis | This paper reports the outcome of the third in the series of biennial international planning competitions, held in association with the International Conference on AI Planning and Scheduling (AIPS) in 2002. In addition to describing the domains, the planners and the objectives of the competition, the paper includes ana... | [
"cs.AI"
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5746370 | 1106.5875 | 2011-06-29 | Hamiltonian complexity | In recent years we've seen the birth of a new field known as hamiltonian complexity lying at the crossroads between computer science and theoretical physics. Hamiltonian complexity is directly concerned with the question: how hard is it to simulate a physical system? Here I review the foundational results, guiding prob... | [
"quant-ph",
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17365009 | 1106.6061 | 2011-06-29 | Algorithms for Unipolar and Generalized Split Graphs | A graph $G=(V,E)$ is a {\it unipolar graph} if there exits a partition $V=V_1 \cup V_2$ such that, $V_1$ is a clique and $V_2$ induces the disjoint union of cliques. The complement-closed class of {\it generalized split graphs} are those graphs $G$ such that either $G$ {\it or} the complement of $G$ is unipolar. Genera... | [
"cs.DM"
] | null | [
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118516200 | 1106.6052 | 2011-06-29 | Discovery of Energy Dependent X-ray Microlensing in Q2237+0305 | We present our long term Chandra X-ray monitoring data for the gravitationally lensed quasar Q2237+0305 with 20 epochs spanning 10 years. We easily detect microlensing variability between the images in the full (0.2--8 keV), soft (0.2--2 keV), and hard (2--8 keV) bands at very high confidence. We also detect, for the f... | [
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73562947 | 1106.6047 | 2011-06-29 | Factorization and Resummation for Dijet Invariant Mass Spectra | Multijet cross sections at the LHC and Tevatron are sensitive to several distinct kinematic energy scales. When measuring the dijet invariant mass m_jj between two signal jets produced in association with other jets or weak bosons, m_jj will typically be much smaller than the total partonic center-of-mass energy Q, but... | [
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{
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11739268 | 1106.6026 | 2011-06-29 | Topological Order at Non-zero Temperature | We propose a definition for topological order at nonzero temperature in analogy to the usual zero temperature definition that a state is topologically ordered, or "nontrivial", if it cannot be transformed into a product state (or a state close to a product state) using a local (or approximately local) quantum circuit. ... | [
"quant-ph"
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5418748 | 1106.5929 | 2011-06-29 | Model-independent Bounds for Option Prices: A Mass Transport Approach | In this paper we investigate model-independent bounds for exotic options written on a risky asset. Based on arguments from the theory of Monge-Kantorovich mass-transport we establish a dual version of the problem that has a natural financial interpretation in terms of semi-static hedging. In particular we prove that th... | [
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13169179 | 1106.5826 | 2011-06-29 | A Dirty Model for Multiple Sparse Regression | Sparse linear regression -- finding an unknown vector from linear measurements -- is now known to be possible with fewer samples than variables, via methods like the LASSO. We consider the multiple sparse linear regression problem, where several related vectors -- with partially shared support sets -- have to be recove... | [
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{
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9582368 | 1106.5979 | 2011-06-29 | Probabilistic Voronoi Diagrams for Probabilistic Moving Nearest Neighbor Queries | A large spectrum of applications such as location based services and environmental monitoring demand efficient query processing on uncertain databases. In this paper, we propose the probabilistic Voronoi diagram (PVD) for processing moving nearest neighbor queries on uncertain data, namely the probabilistic moving near... | [
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{
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118465275 | 1106.6084 | 2011-06-29 | Collisions Between Gravity-Dominated Bodies: 1. Outcome Regimes and Scaling Laws | Collisions are the core agent of planet formation. In this work, we derive an analytic description of the dynamical outcome for any collision between gravity-dominated bodies. We conduct high-resolution simulations of collisions between planetesimals; the results are used to isolate the effects of different impact para... | [
"astro-ph.EP"
] | null | [
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] | null | null | null |
17334663 | 1106.5992 | 2011-06-29 | On the Dynamics of Human Proximity for Data Diffusion in Ad-Hoc Networks | We report on a data-driven investigation aimed at understanding the dynamics of message spreading in a real-world dynamical network of human proximity. We use data collected by means of a proximity-sensing network of wearable sensors that we deployed at three different social gatherings, simultaneously involving severa... | [
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{
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"author_id": "a barrat_1",
"name": "Alain Barrat",
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... | null |
17379558 | 1106.6306 | 2011-06-30 | Exact solution of a stochastic protein dynamics model with delayed degradation | We study a stochastic model of protein dynamics that explicitly includes delay in the degradation. We rigorously derive the master equation for the processes and solve it exactly. We show that the equations for the mean values obtained differ from others intuitively proposed and that oscillatory behavior is not possibl... | [
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{
"author_id": "l lafuerza_1",
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"author_id": "r toral_1",
"name": "Raúl Toral",
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15677875 | 1107.0081 | 2011-06-30 | Primal-dual splitting algorithm for solving inclusions with mixtures of composite, Lipschitzian, and parallel-sum monotone operators | We propose a primal-dual splitting algorithm for solving monotone inclusions involving a mixture of sums, linear compositions, and parallel sums of set-valued and Lipschitzian operators. An important feature of the algorithm is that the Lipschitzian operators present in the formulation can be processed individually via... | [
"math.OC"
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{
"author_id": "p combettes_1",
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{
"author_id": "j pesquet_1",
"name": "Jean-Christophe Pesquet",
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... | null |
11769224 | 1107.0041 | 2011-06-30 | PHA*: Finding the Shortest Path with A* in An Unknown Physical Environment | We address the problem of finding the shortest path between two points in an unknown real physical environment, where a traveling agent must move around in the environment to explore unknown territory. We introduce the Physical-A* algorithm (PHA*) for solving this problem. PHA* expands all the mandatory nodes that A* w... | [
"cs.AI"
] | null | [
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{
"author_id": "a felner_1",
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{
"author_id": "r stern_3",
"name": "Roni Stern",
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47180476 | 1107.0051 | 2011-06-30 | On Prediction Using Variable Order Markov Models | This paper is concerned with algorithms for prediction of discrete sequences over a finite alphabet, using variable order Markov models. The class of such algorithms is large and in principle includes any lossless compression algorithm. We focus on six prominent prediction algorithms, including Context Tree Weighting (... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
85556100 | 1106.6211 | 2011-06-30 | Momentum measurement by the Multiple Coulomb Scattering method in the OPERA lead emulsion target | A new method of momentum measurement of charged particles through Multiple Coulomb Scattering (MCS) in the OPERA lead emulsion target is presented. It is based on precise measurements of track angular deviations performed thanks to the very high resolution of nuclear emulsions. The algorithm has been tested with Monte ... | [
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] | null | [
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{
"author_id": "n agafonova_1",
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{
"author_id": "a aleksandrov_1",
"name": "Andrei [\"B\"] Aleksandrov",
"publication_history": null,
"h_index": null,
... | null |
2445326 | 1107.0043 | 2011-06-30 | A Maximal Tractable Class of Soft Constraints | Many researchers in artificial intelligence are beginning to explore the use of soft constraints to express a set of (possibly conflicting) problem requirements. A soft constraint is a function defined on a collection of variables which associates some measure of desirability with each possible combination of values fo... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
88518906 | 1106.6281 | 2011-06-30 | Considerate Approaches to Achieving Sufficiency for ABC model selection | For nearly any challenging scientific problem evaluation of the likelihood is problematic if not impossible. Approximate Bayesian computation (ABC) allows us to employ the whole Bayesian formalism to problems where we can use simulations from a model, but cannot evaluate the likelihood directly. When summary statistics... | [
"stat.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2570065 | 1107.0046 | 2011-06-30 | Explicit Learning Curves for Transduction and Application to Clustering and Compression Algorithms | Inductive learning is based on inferring a general rule from a finite data set and using it to label new data. In transduction one attempts to solve the problem of using a labeled training set to label a set of unlabeled points, which are given to the learner prior to learning. Although transduction seems at the outset... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119244501 | 1106.6231 | 2011-06-30 | Standard Cosmology Delayed | The introduction of a delay in the Friedmann equation of cosmological evolution is shown to result in the very early universe undergoing the necessary accelerated expansion in the usual radiation (or matter) dominated phase. Occurring even without a violation of the strong energy condition, this expansion slows down na... | [
"gr-qc",
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"hep-th"
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{
"author_id": "d choudhury_1",
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{
"author_id": "d ghoshal_0",
"name": "Debashis Ghoshal",
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554439 | 1107.0036 | 2011-06-30 | Can We Learn to Beat the Best Stock | A novel algorithm for actively trading stocks is presented. While traditional expert advice and "universal" algorithms (as well as standard technical trading heuristics) attempt to predict winners or trends, our approach relies on predictable statistical relations between all pairs of stocks in the market. Our empirica... | [
"cs.AI",
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] | null | null | null |
2835394 | 1109.1498 | 2011-06-30 | Structured Knowledge Representation for Image Retrieval | We propose a structured approach to the problem of retrieval of images by content and present a description logic that has been devised for the semantic indexing and retrieval of images containing complex objects. As other approaches do, we start from low-level features extracted with image analysis to detect and chara... | [
"cs.AI"
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{
"author_id": "e sciascio_1",
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{
"author_id": "f donini_1",
"name": "Francesco [\"Maria\"] Donini",
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1873073 | 1106.6191 | 2011-06-30 | Splitting full matrix algebras over algebraic number fields | Let K be an algebraic number field of degree d and discriminant D over Q. Let A be an associative algebra over K given by structure constants such that A is isomorphic to the algebra M_n(K) of n by n matrices over K for some positive integer n. Suppose that d, n and D are bounded. Then an isomorphism of A with M_n(K) c... | [
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{
"author_id": "g ivanyos_1",
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"name": "Lajos Rónyai",
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... | null |
9555747 | 1106.6147 | 2011-06-30 | On false discovery rate thresholding for classification under sparsity | We study the properties of false discovery rate (FDR) thresholding, viewed as a classification procedure. The "0"-class (null) is assumed to have a known density while the "1"-class (alternative) is obtained from the "0"-class either by translation or by scaling. Furthermore, the "1"-class is assumed to have a small nu... | [
"stat.ME"
] | null | [
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{
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{
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] | [
{
"author_id": "p neuvial_1",
"name": "Pierre Neuvial",
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{
"author_id": "é roquain_1",
"name": "Étienne Roquain",
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"num_papers": null... | null |
2144362 | 1106.6088 | 2011-06-30 | A luminous quasar at a redshift of z = 7.085 | The intergalactic medium was not completely reionized until approximately a billion years after the Big Bang, as revealed by observations of quasars with redshifts of less than 6.5. It has been difficult to probe to higher redshifts, however, because quasars have historically been identified in optical surveys, which a... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1099285 | 1107.0062 | 2011-06-30 | Optimal Multi-Robot Path Planning with Temporal Logic Constraints | In this paper we present a method for automatically planning optimal paths for a group of robots that satisfy a common high level mission specification. Each robot's motion in the environment is modeled as a weighted transition system. The mission is given as a Linear Temporal Logic formula. In addition, an optimizing ... | [
"cs.RO"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
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{
"author_id": "a ulusoy_1",
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{
"author_id": "s smith_5",
"name": "Stephen [\"L.\"] Smith",
"publication_history": null,
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"num_papers": n... | null |
6188617 | 1106.6104 | 2011-06-30 | Deterministic Sequencing of Exploration and Exploitation for Multi-Armed Bandit Problems | In the Multi-Armed Bandit (MAB) problem, there is a given set of arms with unknown reward models. At each time, a player selects one arm to play, aiming to maximize the total expected reward over a horizon of length T. An approach based on a Deterministic Sequencing of Exploration and Exploitation (DSEE) is developed f... | [
"math.OC",
"cs.LG",
"cs.SY",
"math.PR",
"math.ST",
"stat.TH"
] | null | [
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{
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{
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"name": "Keqin Liu",
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"num_... | null |
6281959 | 1106.6136 | 2011-06-30 | A Comparison of Performance Measures via Online Search | Though competitive analysis has been a very useful performance measure for the quality of online algorithms, it is recognized that it sometimes fails to distinguish between algorithms of different quality in practice. A number of alternative measures have been proposed, but, with a few exceptions, these have generally ... | [
"cs.DS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j boyar_1",
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{
"author_id": "k larsen_7",
"name": "Kim [\"S.\"] Larsen",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
16355321 | 1106.6280 | 2011-06-30 | On optimality of kernels for approximate Bayesian computation using sequential Monte Carlo | Approximate Bayesian computation (ABC) has gained popularity over the past few years for the analysis of complex models arising in population genetic, epidemiology and system biology. Sequential Monte Carlo (SMC) approaches have become work horses in ABC. Here we discuss how to construct the perturbation kernels that a... | [
"stat.CO"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
13887445 | 1107.0076 | 2011-06-30 | KARMA: Kalman-based autoregressive moving average modeling and inference for formant and antiformant tracking | Vocal tract resonance characteristics in acoustic speech signals are classically tracked using frame-by-frame point estimates of formant frequencies followed by candidate selection and smoothing using dynamic programming methods that minimize ad hoc cost functions. The goal of the current work is to provide both point ... | [
"stat.AP",
"cs.SD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12980437 | 1107.0088 | 2011-06-30 | Sparse Sums of Positive Semidefinite Matrices | Recently there has been much interest in "sparsifying" sums of rank one matrices: modifying the coefficients such that only a few are nonzero, while approximately preserving the matrix that results from the sum. Results of this sort have found applications in many different areas, including sparsifying graphs. In this ... | [
"cs.DM",
"cs.DS",
"cs.NA",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119262420 | 1107.0002 | 2011-06-30 | The Atlas3D project - X. On the origin of the molecular and ionised gas in early-type galaxies | We make use of interferometric CO and HI observations, and optical integral-field spectroscopy to probe the origin of the molecular and ionised interstellar medium (ISM) in local early-type galaxies (ETGs). We find that 36\pm5% of our sample of fast rotating ETGs have their ionised gas kinematically misaligned with res... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
971154 | 1107.0023 | 2011-06-30 | CP-nets: A Tool for Representing and Reasoning withConditional Ceteris Paribus Preference Statements | Information about user preferences plays a key role in automated decision making. In many domains it is desirable to assess such preferences in a qualitative rather than quantitative way. In this paper, we propose a qualitative graphical representation of preferences that reflects conditional dependence and independenc... | [
"cs.AI"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "c boutilier_1",
"name": "Craig Boutilier",
"publication_history": null,
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"num_papers": null,
"num_citations": null
},
{
"author_id": "r brafman_1",
"name": "Ronen [\"I.\"] Brafman",
"publication_history": null,
"h_index": null,
"num_pap... | null |
3029783 | 1107.0050 | 2011-06-30 | Additive Pattern Database Heuristics | We explore a method for computing admissible heuristic evaluation functions for search problems. It utilizes pattern databases, which are precomputed tables of the exact cost of solving various subproblems of an existing problem. Unlike standard pattern database heuristics, however, we partition our problems into disjo... | [
"cs.AI"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a felner_1",
"name": "Ariel Felner",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r korf_0",
"name": "Richard [\"E.\"] Korf",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
11204616 | 1106.6180 | 2011-06-30 | BM3D Frames and Variational Image Deblurring | A family of the Block Matching 3-D (BM3D) algorithms for various imaging problems has been recently proposed within the framework of nonlocal patch-wise image modeling [1], [2]. In this paper we construct analysis and synthesis frames, formalizing the BM3D image modeling and use these frames to develop novel iterative ... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
208938200 | 1107.0022 | 2011-06-30 | K-Implementation | This paper discusses an interested party who wishes to influence the behavior of agents in a game (multi-agent interaction), which is not under his control. The interested party cannot design a new game, cannot enforce agents' behavior, cannot enforce payments by the agents, and cannot prohibit strategies available to ... | [
"cs.GT",
"cs.AI"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119595101 | 1106.6189 | 2011-06-30 | An inequality for the trace of matrix products, using absolute values | The absolute value of matrices is used in order to give inequalities for the trace of products. An application gives a very short proof of the tracial matrix Hoelder inequality | [
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7279410 | 1106.6224 | 2011-06-30 | Structured Compressed Sensing: From Theory to Applications | Compressed sensing (CS) is an emerging field that has attracted considerable research interest over the past few years. Previous review articles in CS limit their scope to standard discrete-to-discrete measurement architectures using matrices of randomized nature and signal models based on standard sparsity. In recent ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
541985 | 1107.0044 | 2011-06-30 | Towards Understanding and Harnessing the Potential of Clause Learning | Efficient implementations of DPLL with the addition of clause learning are the fastest complete Boolean satisfiability solvers and can handle many significant real-world problems, such as verification, planning and design. Despite its importance, little is known of the ultimate strengths and limitations of the techniqu... | [
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p beame_1",
"name": "Paul Beame",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "h kautz_1",
"name": "Henry [\"A.\"] Kautz",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
9120801 | 1107.0098 | 2011-06-30 | A Probabilistic Attack on NP-complete Problems | Using the probability theory-based approach, this paper reveals the equivalence of an arbitrary NP-complete problem to a problem of checking whether a level set of a specifically constructed harmonic cost function (with all diagonal entries of its Hessian matrix equal to zero) intersects with a unit hypercube in many-d... | [
"cs.CC",
"cs.AI",
"cs.DM",
"cs.DS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a davydov_2",
"name": "A. Davydov",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
13361290 | 1107.0024 | 2011-06-30 | Complexity Results and Approximation Strategies for MAP Explanations | MAP is the problem of finding a most probable instantiation of a set of variables given evidence. MAP has always been perceived to be significantly harder than the related problems of computing the probability of a variable instantiation Pr, or the problem of computing the most probable explanation (MPE). This paper in... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55995744 | 1106.6265 | 2011-06-30 | Disorder-induced Majorana metal in interacting non-Abelian anyon systems | We demonstrate that a thermal metal of Majorana fermions forms in a two-dimensional system of interacting non-Abelian (Ising) anyons in the presence of moderate disorder. This bulk metallic phase arises in the $\nu=5/2$ quantum Hall state when disorder pins the anyonic quasiparticles. More generally, it naturally occur... | [
"cond-mat.str-el",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c laumann_1",
"name": "Chris [\"R.\"] Laumann",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a ludwig_1",
"name": "Andreas [\"W.\",\"W.\"] Ludwig",
"publication_history": null,
"h_index": null,
... | null |
7125408 | 1107.0019 | 2011-06-30 | Searching for Bayesian Network Structures in the Space of Restricted Acyclic Partially Directed Graphs | Although many algorithms have been designed to construct Bayesian network structures using different approaches and principles, they all employ only two methods: those based on independence criteria, and those based on a scoring function and a search procedure (although some methods combine the two). Within the score+s... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
456491 | 1106.6251 | 2011-06-30 | Kernels for Vector-Valued Functions: a Review | Kernel methods are among the most popular techniques in machine learning. From a frequentist/discriminative perspective they play a central role in regularization theory as they provide a natural choice for the hypotheses space and the regularization functional through the notion of reproducing kernel Hilbert spaces. F... | [
"stat.ML",
"cs.AI",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference",
"target.key_reference"
] | [] | [
{
"author_id": "m álvarez_1",
"name": "Mauricio [\"A\"] Álvarez",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l rosasco_1",
"name": "Lorenzo Rosasco",
"publication_history": null,
"h_index": null,
"num_pap... | null |
17235705 | 1107.0124 | 2011-07-01 | A Gel'fand-type spectral radius formula and stability of linear constrained switching systems | Using ergodic theory, in this paper we present a Gel'fand-type spectral radius formula which states that the joint spectral radius is equal to the generalized spectral radius for a matrix multiplicative semigroup $\bS^+$ restricted to a subset that need not carry the algebraic structure of $\bS^+$. This generalizes the... | [
"math.OC",
"cs.SY",
"math.DS",
"math.RA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9354315 | 1107.0300 | 2011-07-01 | The Compute-and-Forward Protocol: Implementation and Practical Aspects | In a recent work, Nazer and Gastpar proposed the Compute-and-Forward strategy as a physical-layer network coding scheme. They described a code structure based on nested lattices whose algebraic structure makes the scheme reliable and efficient. In this work, we consider the implementation of their scheme for real Gauss... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9409885 | 1107.0278 | 2011-07-01 | Completeness of Epistemic Coalition Logic with Group Knowledge | Coalition logic is one of the most popular logics for multi-agent systems. While epistemic extensions of coalition logic have received much attention, existence of their complete axiomatisations has so far been an open problem. In this paper we settle several of those problems. We prove completeness for epistemic coali... | [
"cs.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t ågotnes_0",
"name": "Thomas Ågotnes",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "n alechina_1",
"name": "Natasha Alechina",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
1963656 | 1107.0169 | 2011-07-01 | Unstructured Human Activity Detection from RGBD Images | Being able to detect and recognize human activities is essential for several applications, including personal assistive robotics. In this paper, we perform detection and recognition of unstructured human activity in unstructured environments. We use a RGBD sensor (Microsoft Kinect) as the input sensor, and compute a se... | [
"cs.RO",
"cs.CV"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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