id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
1102.2035 | Quasi-Cross Lattice Tilings with Applications to Flash Memory | [
"cs.IT",
"math.IT"
] | We consider lattice tilings of $\R^n$ by a shape we call a $(\kp,\km,n)$-quasi-cross. Such lattices form perfect error-correcting codes which correct a single limited-magnitude error with prescribed maximal-magnitudes of positive error and negative error (the ratio of which is called the balance ratio). These codes can... | {
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1102.2091 | The blogosphere as an excitable social medium: Richter's and Omori's Law
in media coverage | [
"physics.soc-ph",
"cs.SI"
] | We study the dynamics of public media attention by monitoring the content of online blogs. Social and media events can be traced by the propagation of word frequencies of related keywords. Media events are classified as exogenous - where blogging activity is triggered by an external news item - or endogenous where word... | {
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1102.2114 | Knowledge Management System Design using Extended Gaia | [
"cs.MA"
] | An efficient Learning resource centre can be achieved with the help of a network of collaborating, coordinating and communicating software agents. Agent-oriented techniques represent an exciting new means of analysing, designing and building complex software systems. The designing of the interacting agents is done with... | {
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1102.2122 | On the covering radius of first order generalized Reed-Muller codes | [
"math.NT",
"cs.IT",
"math.IT"
] | We generalize to any q a theorem about covering radius of linear codes proved by Helleseth, Klove and Mykkelvit. Then we determine the covering radius of first order generalized Reed-Muller codes in second order generalized Reed-Muller codes. Using these results, we are able to give bounds for the covering radius of fi... | {
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1102.2125 | Improving DPLL Solver Performance with Domain-Specific Heuristics: the
ASP Case | [
"cs.AI",
"cs.LO"
] | In spite of the recent improvements in the performance of the solvers based on the DPLL procedure, it is still possible for the search algorithm to focus on the wrong areas of the search space, preventing the solver from returning a solution in an acceptable amount of time. This prospect is a real concern e.g. in an in... | {
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1102.2166 | Social Structure of Facebook Networks | [
"cs.SI",
"nlin.AO",
"physics.soc-ph"
] | We study the social structure of Facebook "friendship" networks at one hundred American colleges and universities at a single point in time, and we examine the roles of user attributes - gender, class year, major, high school, and residence - at these institutions. We investigate the influence of common attributes at t... | {
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1102.2174 | Linear Temporal Logic and Propositional Schemata, Back and Forth
(extended version) | [
"cs.LO",
"cs.AI"
] | This paper relates the well-known Linear Temporal Logic with the logic of propositional schemata introduced by the authors. We prove that LTL is equivalent to a class of schemata in the sense that polynomial-time reductions exist from one logic to the other. Some consequences about complexity are given. We report about... | {
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1102.2176 | Joint Distributed Access Point Selection and Power Allocation in
Cognitive Radio Networks | [
"cs.IT",
"math.IT"
] | Spectrum management has been identified as a crucial step towards enabling the technology of the cognitive radio network (CRN). Most of the current works dealing with spectrum management in the CRN focus on a single task of the problem, e.g., spectrum sensing, spectrum decision, spectrum sharing or spectrum mobility. I... | {
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1102.2180 | Malagasy Dialects and the Peopling of Madagascar | [
"cs.CL",
"physics.soc-ph"
] | The origin of Malagasy DNA is half African and half Indonesian, nevertheless the Malagasy language, spoken by the entire population, belongs to the Austronesian family. The language most closely related to Malagasy is Maanyan (Greater Barito East group of the Austronesian family), but related languages are also in Sula... | {
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1102.2203 | Some applications of quasi-velocities in optimal control | [
"math.OC",
"cs.SY",
"math-ph",
"math.MP"
] | In this paper we study optimal control problems for nonholonomic systems defined on Lie algebroids by using quasi-velocities. We consider both kinematic, i.e. systems whose cost functional depends only on position and velocities, and dynamic optimal control problems, i.e. systems whose cost functional depends also on a... | {
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1102.2207 | Lossless Coding with Generalised Criteria | [
"cs.IT",
"math.IT"
] | This paper presents prefix codes which minimize various criteria constructed as a convex combination of maximum codeword length and average codeword length or maximum redundancy and average redundancy, including a convex combination of the average of an exponential function of the codeword length and the average redund... | {
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1102.2216 | On the Capacity of Memoryless Channels with Synchronization Errors | [
"cs.IT",
"math.IT"
] | Memoryless channels with synchronization errors as defined by a stochastic channel matrix allowing for symbol insertions and deletions in addition to random errors are considered. Such channels are information stable, hence their Shannon capacity exists. However, computation of the channel capacity is formidable, and o... | {
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1102.2223 | On Inverses for Quadratic Permutation Polynomials over Integer Rings | [
"cs.IT",
"math.IT"
] | Quadratic permutation polynomial interleavers over integer rings have recently received attention in practical turbo coding systems from deep space applications to mobile communications. In this correspondence, a necessary and sufficient condition that determines the least degree inverse of a quadratic permutation poly... | {
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1102.2250 | Modeling the pairwise key distribution scheme in the presence of
unreliable links | [
"cs.IT",
"math.CO",
"math.IT"
] | We investigate the secure connectivity of wireless sensor networks under the pairwise key distribution scheme of Chan et al.. Unlike recent work which was carried out under the assumption of full visibility, here we assume a (simplified) communication model where unreliable wireless links are represented as on/off chan... | {
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1102.2254 | Matrix completion with column manipulation: Near-optimal
sample-robustness-rank tradeoffs | [
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"cs.IT",
"math.IT"
] | This paper considers the problem of matrix completion when some number of the columns are completely and arbitrarily corrupted, potentially by a malicious adversary. It is well-known that standard algorithms for matrix completion can return arbitrarily poor results, if even a single column is corrupted. One direct appl... | {
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1102.2284 | Competitive Use of Multiple Antennas | [
"cs.IT",
"math.IT"
] | A game theoretic framework is presented to analyze the problem of finding the optimal number of data streams to transmit in a multi-user MIMO scenario, where both the transmitters and receivers are equipped with multiple antennas. Without channel state information (CSI) at any transmitter, and using outage capacity as ... | {
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1102.2332 | A Fast Measurement based fixed-point Quantum Search Algorithm | [
"cs.DB",
"quant-ph"
] | Generic quantum search algorithm searches for target entity in an unsorted database by repeatedly applying canonical Grover's quantum rotation transform to reach near the vicinity of the target entity represented by a basis state in the Hilbert space associated with the qubits. Thus, when qubits are measured, there is ... | {
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1102.2334 | Weak KAM theoretic aspects for nonregular commuting Hamiltonians | [
"math.AP",
"cs.SY",
"math.OC"
] | In this paper we consider the notion of commutation for a pair of continuous and convex Hamiltonians, given in terms of commutation of their Lax- Oleinik semigroups. This is equivalent to the solvability of an associated multi- time Hamilton-Jacobi equation. We examine the weak KAM theoretic aspects of the commutation ... | {
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1102.2336 | Opinions within Media, Power and Gossip | [
"cs.SI",
"cs.AI",
"physics.soc-ph"
] | Despite the increasing diffusion of the Internet technology, TV remains the principal medium of communication. People's perceptions, knowledge, beliefs and opinions about matter of facts get (in)formed through the information reported on by the mass-media. However, a single source of information (and consensus) could b... | {
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1102.2350 | The best possible upper bound on the probability of undetected error for
linear codes of full support | [
"cs.IT",
"math.IT"
] | There is a known best possible upper bound on the probability of undetected error for linear codes. The $[n,k;q]$ codes with probability of undetected error meeting the bound have support of size $k$ only. In this note, linear codes of full support ($=n$) are studied. A best possible upper bound on the probability of u... | {
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1102.2361 | Convergence of type-symmetric and cut-balanced consensus seeking systems
(extended version) | [
"cs.SY",
"cs.MA",
"math.OC"
] | We consider continuous-time consensus seeking systems whose time-dependent interactions are cut-balanced, in the following sense: if a group of agents influences the remaining ones, the former group is also influenced by the remaining ones by at least a proportional amount. Models involving symmetric interconnections a... | {
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1102.2382 | A Comparison of Two Human Brain Tumor Segmentation Methods for MRI Data | [
"cs.CV",
"physics.med-ph"
] | The most common primary brain tumors are gliomas, evolving from the cerebral supportive cells. For clinical follow-up, the evaluation of the preoperative tumor volume is essential. Volumetric assessment of tumor volume with manual segmentation of its outlines is a time-consuming process that can be overcome with the he... | {
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1102.2395 | Matching, Merging and Structural Properties of Data Base Category | [
"cs.DB",
"cs.LO",
"math.CT"
] | Main contribution of this paper is an investigation of expressive power of the database category DB. An object in this category is a database-instance (set of n-ary relations). Morphisms are not functions but have complex tree structures based on a set of complex query computations. They express the semantics of view-b... | {
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1102.2398 | The Kirchhoff's Matrix-Tree Theorem revisited: counting spanning trees
with the quantum relative entropy | [
"quant-ph",
"cs.IT",
"math.CO",
"math.IT"
] | By revisiting the Kirchhoff's Matrix-Tree Theorem, we give an exact formula for the number of spanning trees of a graph in terms of the quantum relative entropy between the maximally mixed state and another state specifically obtained from the graph. We use properties of the quantum relative entropy to prove tight boun... | {
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1102.2413 | Optimal prefix codes for pairs of geometrically-distributed random
variables | [
"cs.IT",
"math.IT"
] | Optimal prefix codes are studied for pairs of independent, integer-valued symbols emitted by a source with a geometric probability distribution of parameter $q$, $0{<}q{<}1$. By encoding pairs of symbols, it is possible to reduce the redundancy penalty of symbol-by-symbol encoding, while preserving the simplicity of th... | {
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1102.2423 | Social network dynamics of face-to-face interactions | [
"physics.soc-ph",
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"cs.SI"
] | The recent availability of data describing social networks is changing our understanding of the "microscopic structure" of a social tie. A social tie indeed is an aggregated outcome of many social interactions such as face-to-face conversations or phone-calls. Analysis of data on face-to-face interactions shows that su... | {
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1102.2453 | Reducing the Number of Elements in Linear and Planar Antenna Arrays with
Sparse Constraint Optimization | [
"cs.IT",
"math.IT"
] | This paper has been withdrawn by the authors. I will do the major revision. | {
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1102.2467 | Universal Learning Theory | [
"cs.LG",
"cs.IT",
"math.IT"
] | This encyclopedic article gives a mini-introduction into the theory of universal learning, founded by Ray Solomonoff in the 1960s and significantly developed and extended in the last decade. It explains the spirit of universal learning, but necessarily glosses over technical subtleties. | {
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1102.2468 | Algorithmic Randomness as Foundation of Inductive Reasoning and
Artificial Intelligence | [
"cs.IT",
"cs.AI",
"cs.CC",
"math.IT"
] | This article is a brief personal account of the past, present, and future of algorithmic randomness, emphasizing its role in inductive inference and artificial intelligence. It is written for a general audience interested in science and philosophy. Intuitively, randomness is a lack of order or predictability. If random... | {
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1102.2490 | The KL-UCB Algorithm for Bounded Stochastic Bandits and Beyond | [
"math.ST",
"cs.LG",
"cs.SY",
"math.OC",
"stat.TH"
] | This paper presents a finite-time analysis of the KL-UCB algorithm, an online, horizon-free index policy for stochastic bandit problems. We prove two distinct results: first, for arbitrary bounded rewards, the KL-UCB algorithm satisfies a uniformly better regret bound than UCB or UCB2; second, in the special case of Be... | {
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1102.2498 | Two-Unicast Wireless Networks: Characterizing the Degrees-of-Freedom | [
"cs.IT",
"math.IT"
] | We consider two-source two-destination (i.e., two-unicast) multi-hop wireless networks that have a layered structure with arbitrary connectivity. We show that, if the channel gains are chosen independently according to continuous distributions, then, with probability 1, two-unicast layered Gaussian networks can only ha... | {
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1102.2504 | Cognitive Multiple Access Network with Outage Margin in the Primary
System | [
"cs.IT",
"math.IT"
] | This paper investigates the problem of spectrally efficient operation of a multiuser uplink cognitive radio system in the presence of a single primary link. The secondary system applies opportunistic interference cancelation (OIC) and decode the primary signal when such an opportunity is created. We derive the achievab... | {
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1102.2506 | Opportunistic Relaying for Space-Time Coded Cooperation with Multiple
Antenna Terminals | [
"cs.IT",
"math.IT"
] | We consider a wireless relay network with multiple antenna terminals over Rayleigh fading channels, and apply distributed space-time coding (DSTC) in amplify-and-forward (A&F) mode. The A&F scheme is used in a way that each relay transmits a scaled version of the linear combination of the received symbols. It turns out... | {
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1102.2516 | High Throughput Random Access via Codes on Graphs: Coded Slotted ALOHA | [
"cs.IT",
"math.IT"
] | In this paper, coded slotted ALOHA (CSA) is introduced as a powerful random access scheme to the MAC frame. In CSA, the burst a generic user wishes to transmit in the MAC frame is first split into segments, and these segments are then encoded through a local a packet-oriented code prior to transmission. On the receiver... | {
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1102.2524 | Multicriteria Steiner Tree Problem for Communication Network | [
"cs.DS",
"cs.AI",
"cs.NI",
"math.OC"
] | This paper addresses combinatorial optimization scheme for solving the multicriteria Steiner tree problem for communication network topology design (e.g., wireless mesh network). The solving scheme is based on several models: multicriteria ranking, clustering, minimum spanning tree, and minimum Steiner tree problem. An... | {
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1102.2536 | Lower bounds on Information Divergence | [
"cs.IT",
"math.IT",
"math.PR"
] | In this paper we establish lower bounds on information divergence from a distribution to certain important classes of distributions as Gaussian, exponential, Gamma, Poisson, geometric, and binomial. These lower bounds are tight and for several convergence theorems where a rate of convergence can be computed, this rate ... | {
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1102.2551 | Yield Optimization of Display Advertising with Ad Exchange | [
"math.OC",
"cs.DS",
"cs.SY"
] | In light of the growing market of Ad Exchanges for the real-time sale of advertising slots, publishers face new challenges in choosing between the allocation of contract-based reservation ads and spot market ads. In this setting, the publisher should take into account the tradeoff between short-term revenue from an Ad ... | {
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1102.2559 | Toward Measuring the Scaling of Genetic Programming | [
"cs.NE"
] | Several genetic programming systems are created, each solving a different problem. In these systems, the median number of generations G needed to evolve a working program is measured. The behavior of G is observed as the difficulty of the problem is increased. In these systems, the density D of working programs in the ... | {
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1102.2566 | Key Reduction of McEliece's Cryptosystem Using List Decoding | [
"cs.CR",
"cs.IT",
"math.IT"
] | Different variants of the code-based McEliece cryptosystem were pro- posed to reduce the size of the public key. All these variants use very structured codes, which open the door to new attacks exploiting the underlying structure. In this paper, we show that the dyadic variant can be designed to resist all known attack... | {
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1102.2568 | Frequency characteristics based on describing function method for
differentiators | [
"cs.SY"
] | In this paper, describing function method is used to analyze the characteristics and parameters selection of differentiators. Nonlinear differentiator is an effective compensation to linear differentiator, and hybrid differentiator consisting of linear and nonlinear parts is the combination of both advantages of linear... | {
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1102.2593 | Codes and Designs Related to Lifted MRD Codes | [
"cs.IT",
"cs.DM",
"math.IT"
] | Lifted maximum rank distance (MRD) codes, which are constant dimension codes, are considered. It is shown that a lifted MRD code can be represented in such a way that it forms a block design known as a transversal design. A slightly different representation of this design makes it similar to a $q-$analog of a transvers... | {
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1102.2598 | The Dispersion of Lossy Source Coding | [
"cs.IT",
"math.IT"
] | In this work we investigate the behavior of the minimal rate needed in order to guarantee a given probability that the distortion exceeds a prescribed threshold, at some fixed finite quantization block length. We show that the excess coding rate above the rate-distortion function is inversely proportional (to the first... | {
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1102.2599 | Rapid-convergent nonlinear differentiator | [
"cs.SY"
] | A nonlinear differentiator being fit for rapid convergence is presented, which is based on singular perturbation technique. The differentiator design can not only sufficiently reduce the chattering phenomenon of derivative estimation by introducing a continuous power function, but the dynamical performances are also im... | {
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1102.2600 | High-order integral-chain differentiator and application to acceleration
feedback | [
"cs.SY"
] | The equivalence between integral-chain differentiator and usual high-gain differentiator is given under suitable coordinate transformation. Integral-chain differentiator can restrain noises more thoroughly than usual high-gain linear differentiator. In integral-chain differentiator, disturbances only exist in the last ... | {
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1102.2602 | A New Method for Variable Elimination in Systems of Inequations | [
"cs.IT",
"cs.DS",
"math.IT"
] | In this paper, we present a new method for variable elimination in systems of inequations which is much faster than the Fourier-Motzkin Elimination (FME) method. In our method, a linear Diophantine problem is introduced which is dual to our original problem. The new Diophantine system is then solved, and the final resu... | {
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1102.2615 | Guaranteeing Convergence of Iterative Skewed Voting Algorithms for Image
Segmentation | [
"math.FA",
"cs.CV",
"nlin.CG"
] | In this paper we provide rigorous proof for the convergence of an iterative voting-based image segmentation algorithm called Active Masks. Active Masks (AM) was proposed to solve the challenging task of delineating punctate patterns of cells from fluorescence microscope images. Each iteration of AM consists of a linear... | {
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1102.2620 | Predicting economic market crises using measures of collective panic | [
"q-fin.ST",
"cs.SI",
"physics.soc-ph"
] | Predicting panic is of critical importance in many areas of human and animal behavior, notably in the context of economics. The recent financial crisis is a case in point. Panic may be due to a specific external threat, or self-generated nervousness. Here we show that the recent economic crisis and earlier large single... | {
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1102.2623 | Egomunities, Exploring Socially Cohesive Person-based Communities | [
"cs.SI",
"cs.NI",
"physics.soc-ph"
] | In the last few years, there has been a great interest in detecting overlapping communities in complex networks, which is understood as dense groups of nodes featuring a low outbound density. To date, most methods used to compute such communities stem from the field of disjoint community detection by either extending t... | {
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1102.2624 | Classical communication over a quantum interference channel | [
"quant-ph",
"cs.IT",
"math.IT"
] | Calculating the capacity of interference channels is a notorious open problem in classical information theory. Such channels have two senders and two receivers, and each sender would like to communicate with a partner receiver. The capacity of such channels is known exactly in the settings of "very strong" and "strong"... | {
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1102.2627 | The free space optical interference channel | [
"quant-ph",
"cs.IT",
"math.IT"
] | Semiclassical models for multiple-user optical communication cannot assess the ultimate limits on reliable communication as permitted by the laws of physics. In all optical communications settings that have been analyzed within a quantum framework so far, the gaps between the quantum limit to the capacity and the Shann... | {
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1102.2641 | Improved Redundancy Bounds for Exponential Objectives | [
"cs.IT",
"math.IT"
] | We present new lower and upper bounds for the compression rate of binary prefix codes optimized over memoryless sources according to two related exponential codeword length objectives. The objectives explored here are exponential-average length and exponential-average redundancy. The first of these relates to various p... | {
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1102.2654 | PORGY: Strategy-Driven Interactive Transformation of Graphs | [
"cs.CE",
"cs.SE"
] | This paper investigates the use of graph rewriting systems as a modelling tool, and advocates the embedding of such systems in an interactive environment. One important application domain is the modelling of biochemical systems, where states are represented by port graphs and the dynamics is driven by rules and strateg... | {
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1102.2670 | Online Least Squares Estimation with Self-Normalized Processes: An
Application to Bandit Problems | [
"cs.AI"
] | The analysis of online least squares estimation is at the heart of many stochastic sequential decision making problems. We employ tools from the self-normalized processes to provide a simple and self-contained proof of a tail bound of a vector-valued martingale. We use the bound to construct a new tighter confidence se... | {
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1102.2673 | Environmental benefits of enhanced surveillance technology on airport
departure operations | [
"cs.SY"
] | Airport departure operations constitute an important source of airline delays and passenger frustration. Excessive surface traffic is the cause of increased controller and pilot workload; It is also the source of increased emissions; It worsens traffic safety and often does not yield improved runway throughput. Acknowl... | {
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1102.2677 | Measurement Bounds for Sparse Signal Ensembles via Graphical Models | [
"cs.IT",
"math.IT"
] | In compressive sensing, a small collection of linear projections of a sparse signal contains enough information to permit signal recovery. Distributed compressive sensing (DCS) extends this framework by defining ensemble sparsity models, allowing a correlated ensemble of sparse signals to be jointly recovered from a co... | {
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1102.2678 | Minimum Redundancy Coding for Uncertain Sources | [
"cs.IT",
"math.IT"
] | Consider the set of source distributions within a fixed maximum relative entropy with respect to a given nominal distribution. Lossless source coding over this relative entropy ball can be approached in more than one way. A problem previously considered is finding a minimax average length source code. The minimizing pl... | {
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1102.2684 | Chernoff information of exponential families | [
"cs.IT",
"cs.CV",
"cs.IR",
"math.IT"
] | Chernoff information upper bounds the probability of error of the optimal Bayesian decision rule for $2$-class classification problems. However, it turns out that in practice the Chernoff bound is hard to calculate or even approximate. In statistics, many usual distributions, such as Gaussians, Poissons or frequency hi... | {
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1102.2700 | On (Partial) Unit Memory Codes Based on Gabidulin Codes | [
"cs.IT",
"math.IT"
] | (Partial) Unit Memory ((P)UM) codes provide a powerful possibility to construct convolutional codes based on block codes in order to achieve a high decoding performance. In this contribution, a construction based on Gabidulin codes is considered. This construction requires a modified rank metric, the so-called sum rank... | {
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1102.2702 | On the Labeling Problem of Permutation Group Codes under the Infinity
Metric | [
"cs.IT",
"math.IT"
] | Codes over permutations under the infinity norm have been recently suggested as a coding scheme for correcting limited-magnitude errors in the rank modulation scheme. Given such a code, we show that a simple relabeling operation, which produces an isomorphic code, may drastically change the minimal distance of the code... | {
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1102.2706 | Blind source separation of convolutive mixtures of non circular linearly
modulated signals with unknown baud rates | [
"cs.IT",
"math.IT"
] | This paper addresses the problem of blind separation of convolutive mixtures of BPSK and circular linearly modulated signals with unknown (and possibly different) baud rates and carrier frequencies. In previous works, we established that the Constant Modulus Algorithm (CMA) is able to extract a source from a convolutiv... | {
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1102.2731 | Necessary and Sufficient Conditions for Distinguishability of Linear
Control Systems | [
"math.OC",
"cs.SY"
] | Distinguishability takes a crucial rule in studying observability of hybrid system such as switched system. Recently, for two linear systems, Lou and Si gave a condition not only necessary but also sufficient to the distinguishability of linear systems. However, the condition is not easy enough to verify. This paper wi... | {
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1102.2734 | The Treewidth of MDS and Reed-Muller Codes | [
"cs.IT",
"cs.DM",
"math.IT"
] | The constraint complexity of a graphical realization of a linear code is the maximum dimension of the local constraint codes in the realization. The treewidth of a linear code is the least constraint complexity of any of its cycle-free graphical realizations. This notion provides a useful parametrization of the maximum... | {
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1102.2738 | Decision Theory with Prospect Interference and Entanglement | [
"math-ph",
"cs.AI",
"math.MP",
"physics.soc-ph",
"quant-ph"
] | We present a novel variant of decision making based on the mathematical theory of separable Hilbert spaces. This mathematical structure captures the effect of superposition of composite prospects, including many incorporated intentions, which allows us to describe a variety of interesting fallacies and anomalies that h... | {
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1102.2739 | A General Framework for Development of the Cortex-like Visual Object
Recognition System: Waves of Spikes, Predictive Coding and Universal
Dictionary of Features | [
"cs.CV",
"cs.AI",
"cs.LG",
"cs.NE"
] | This study is focused on the development of the cortex-like visual object recognition system. We propose a general framework, which consists of three hierarchical levels (modules). These modules functionally correspond to the V1, V4 and IT areas. Both bottom-up and top-down connections between the hierarchical levels V... | {
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1102.2743 | Feature selection via simultaneous sparse approximation for person
specific face verification | [
"cs.CV"
] | There is an increasing use of some imperceivable and redundant local features for face recognition. While only a relatively small fraction of them is relevant to the final recognition task, the feature selection is a crucial and necessary step to select the most discriminant ones to obtain a compact face representation... | {
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1102.2748 | Feature Selection via Sparse Approximation for Face Recognition | [
"cs.CV",
"cs.AI"
] | Inspired by biological vision systems, the over-complete local features with huge cardinality are increasingly used for face recognition during the last decades. Accordingly, feature selection has become more and more important and plays a critical role for face data description and recognition. In this paper, we propo... | {
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1102.2749 | Multi-task GLOH feature selection for human age estimation | [
"cs.CV",
"cs.AI"
] | In this paper, we propose a novel age estimation method based on GLOH feature descriptor and multi-task learning (MTL). The GLOH feature descriptor, one of the state-of-the-art feature descriptor, is used to capture the age-related local and spatial information of face image. As the exacted GLOH features are often redu... | {
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1102.2761 | Capacity of BICM Using (Bi-)Orthogonal Signal Constellations in
Impulse-Radio Ultra-Wideband Systems | [
"cs.IT",
"math.IT"
] | Bit-interleaved coded modulation (BICM) using (bi-)orthogonal signals is especially well suited for the application in impulse-radio ultra-wideband transmission systems, which typically operate in the power-limited regime and require a very low-complexity transmitter and receiver design. In this paper we analyze the ca... | {
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1102.2768 | Achievable Rate Region of Quantized Broadcast and MAC Channels | [
"cs.IT",
"math.IT"
] | In this paper, we study the achievable rate region of Gaussian multiuser channels with the messages transmitted being from finite input alphabets and the outputs being {\em quantized at the receiver}. In particular, we focus on the achievable rate region of $i)$ Gaussian broadcast channel (GBC) and $ii)$ Gaussian multi... | {
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1102.2787 | On the Sum Capacity of the Y-Channel | [
"cs.IT",
"math.IT"
] | A network where three users communicate with each other via a relay is considered. Users do not receive other users' signals via a direct link, and thus the relay is essential for their communication. Each user is assumed to have an individual message to be delivered to each other user. Thus, each user wants to send tw... | {
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1102.2794 | Universal approximation using differentiators and application to
feedback control | [
"cs.SY",
"math.OC"
] | In this paper, we consider the problems of approximating uncertainties and feedback control for a class of nonlinear systems without full-known states, and two approximation methods are proposed: universal approximation using integral-chain differentiator or extended observer. Comparing to the approximations by fuzzy s... | {
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1102.2797 | On the Security of Index Coding with Side Information | [
"cs.IT",
"math.IT"
] | Security aspects of the Index Coding with Side Information (ICSI) problem are investigated. Building on the results of Bar-Yossef et al. (2006), the properties of linear index codes are further explored. The notion of weak security, considered by Bhattad and Narayanan (2005) in the context of network coding, is general... | {
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1102.2799 | Computing the Ball Size of Frequency Permutations under Chebyshev
Distance | [
"cs.IT",
"cs.DM",
"math.IT"
] | Let $S_n^\lambda$ be the set of all permutations over the multiset $\{\overbrace{1,...,1}^{\lambda},...,\overbrace{m,...,m}^\lambda\}$ where $n=m\lambda$. A frequency permutation array (FPA) of minimum distance $d$ is a subset of $S_n^\lambda$ in which every two elements have distance at least $d$. FPAs have many appli... | {
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} |
1102.2808 | Transductive Ordinal Regression | [
"cs.LG"
] | Ordinal regression is commonly formulated as a multi-class problem with ordinal constraints. The challenge of designing accurate classifiers for ordinal regression generally increases with the number of classes involved, due to the large number of labeled patterns that are needed. The availability of ordinal class labe... | {
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1102.2816 | Location-Oblivious Data Transfer with Flying Entangled Qudits | [
"quant-ph",
"cs.CR",
"cs.IT",
"math.IT"
] | We present a simple and practical quantum protocol involving two mistrustful agencies in Minkowski space, which allows Alice to transfer data to Bob at a spacetime location that neither can predict in advance. The location depends on both Alice's and Bob's actions. The protocol guarantees unconditionally to Alice that ... | {
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1102.2819 | Parameter Identification for Markov Models of Biochemical Reactions | [
"q-bio.QM",
"cs.CE"
] | We propose a numerical technique for parameter inference in Markov models of biological processes. Based on time-series data of a process we estimate the kinetic rate constants by maximizing the likelihood of the data. The computation of the likelihood relies on a dynamic abstraction of the discrete state space of the ... | {
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1102.2825 | Algorithmic Aspects of Energy-Delay Tradeoff in Multihop Cooperative
Wireless Networks | [
"math.OC",
"cs.DS",
"cs.IT",
"math.IT"
] | We consider the problem of energy-efficient transmission in delay constrained cooperative multihop wireless networks. The combinatorial nature of cooperative multihop schemes makes it difficult to design efficient polynomial-time algorithms for deciding which nodes should take part in cooperation, and when and with wha... | {
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1102.2831 | The effect of linguistic constraints on the large scale organization of
language | [
"cs.CL",
"cs.SI"
] | This paper studies the effect of linguistic constraints on the large scale organization of language. It describes the properties of linguistic networks built using texts of written language with the words randomized. These properties are compared to those obtained for a network built over the text in natural order. It ... | {
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1102.2836 | Finite-Memory Prediction as Well as the Empirical Mean | [
"cs.IT",
"math.IT"
] | The problem of universally predicting an individual continuous sequence using a deterministic finite-state machine (FSM) is considered. The empirical mean is used as a reference as it is the constant that fits a given sequence within a minimal square error. With this reference, a reasonable prediction performance is th... | {
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1102.2837 | Efficient Promotion Strategies in Hierarchical Organizations | [
"physics.soc-ph",
"cs.SI"
] | The Peter principle has been recently investigated by means of an agent-based simulation and its validity has been numerically corroborated. It has been confirmed that, within certain conditions, it can really influence in a negative way the efficiency of a pyramidal organization adopting meritocratic promotions. It wa... | {
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1102.2840 | Spectrum Sensing Based on Blindly Learned Signal Feature | [
"cs.IT",
"math.IT"
] | Spectrum sensing is the major challenge in the cognitive radio (CR). We propose to learn local feature and use it as the prior knowledge to improve the detection performance. We define the local feature as the leading eigenvector derived from the received signal samples. A feature learning algorithm (FLA) is proposed t... | {
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1102.2856 | Spatially Coupled Codes over the Multiple Access Channel | [
"cs.IT",
"math.IT"
] | We consider spatially coupled code ensembles over a multiple access channel. Convolutional LDPC ensembles are one instance of spatially coupled codes. It was shown recently that, for transmission over the binary erasure channel, this coupling of individual code ensembles has the effect of increasing the belief propagat... | {
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1102.2868 | Interference Networks with Point-to-Point Codes | [
"cs.IT",
"math.IT",
"math.PR"
] | The paper establishes the capacity region of the Gaussian interference channel with many transmitter-receiver pairs constrained to use point-to-point codes. The capacity region is shown to be strictly larger in general than the achievable rate regions when treating interference as noise, using successive interference c... | {
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1102.2881 | Modified Orthogonal Matching Pursuit Algorithm for Cognitive Radio
Wideband Spectrum Sensing | [
"cs.IT",
"math.IT"
] | Sampling rate is the bottleneck for spectrum sensing over multi-GHz bandwidth. Recent progress in compressed sensing (CS) initialized several sub-Nyquist rate approaches to overcome the problem. However, efforts to design CS reconstruction algorithms for wideband spectrum sensing are very limited. It is possible to fur... | {
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1102.2890 | Some Notes on Quantum Information Theory and Emerging Computing
Technologies | [
"cs.IT",
"math.IT",
"quant-ph"
] | It is considered an interdependence of the theory of quantum computing and some perspective information technologies. A couple of illustrative and useful examples are discussed. The reversible computing from very beginning had the serious impact on the design of quantum computers and it is revisited first. Some applica... | {
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1102.2891 | Usage Bibliometrics | [
"cs.DL",
"astro-ph.IM",
"cs.IR",
"physics.soc-ph"
] | Scholarly usage data provides unique opportunities to address the known shortcomings of citation analysis. However, the collection, processing and analysis of usage data remains an area of active research. This article provides a review of the state-of-the-art in usage-based informetric, i.e. the use of usage data to s... | {
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1102.2904 | The Asymptotic Limits of Interference in Multicell Networks with Channel
Aware Scheduling | [
"cs.IT",
"math.IT"
] | Interference is emerging as a fundamental bottleneck in many important wireless communication scenarios, including dense cellular networks and cognitive networks with spectrum sharing by multiple service providers. Although multipleantenna (MIMO) signal processing is known to offer useful degrees of freedom to cancel i... | {
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1102.2928 | Density Evolution Analysis of Node-Based Verification-Based Algorithms
in Compressed Sensing | [
"cs.IT",
"math.IT"
] | In this paper, we present a new approach for the analysis of iterative node-based verification-based (NB-VB) recovery algorithms in the context of compressive sensing. These algorithms are particularly interesting due to their low complexity (linear in the signal dimension $n$). The asymptotic analysis predicts the fra... | {
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1102.2933 | A FEniCS-Based Programming Framework for Modeling Turbulent Flow by the
Reynolds-Averaged Navier-Stokes Equations | [
"cs.CE",
"physics.comp-ph",
"physics.flu-dyn"
] | Finding an appropriate turbulence model for a given flow case usually calls for extensive experimentation with both models and numerical solution methods. This work presents the design and implementation of a flexible, programmable software framework for assisting with numerical experiments in computational turbulence.... | {
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1102.2935 | Fundamental Limits of Infinite Constellations in MIMO Fading Channels | [
"cs.IT",
"math.IT"
] | The fundamental and natural connection between the infinite constellation (IC) dimension and the best diversity order it can achieve is investigated in this paper. In the first part of this work we develop an upper bound on the diversity order of IC's for any dimension and any number of transmit and receive antennas. B... | {
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} |
1102.2936 | Decoding by Embedding: Correct Decoding Radius and DMT Optimality | [
"cs.IT",
"math.IT"
] | The closest vector problem (CVP) and shortest (nonzero) vector problem (SVP) are the core algorithmic problems on Euclidean lattices. They are central to the applications of lattices in many problems of communications and cryptography. Kannan's \emph{embedding technique} is a powerful technique for solving the approxim... | {
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} |
1102.2939 | On the Decoding Complexity of Cyclic Codes Up to the BCH Bound | [
"cs.IT",
"math.IT"
] | The standard algebraic decoding algorithm of cyclic codes $[n,k,d]$ up to the BCH bound $t$ is very efficient and practical for relatively small $n$ while it becomes unpractical for large $n$ as its computational complexity is $O(nt)$. Aim of this paper is to show how to make this algebraic decoding computationally mor... | {
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"cs.SI": 0,
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} |
1102.2946 | A Large Deviations Result for Aggregation of Independent Noisy
Observations | [
"cs.IT",
"math.IT"
] | Sensing and aggregation of noisy observations should not be considered as separate issues. The quality of collective estimation involves a difficult tradeoff between sensing quality which increases by increasing the number of sensors, and aggregation quality which typically decreases if the number of sensors is too lar... | {
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} |
1102.2950 | Kron Reduction of Graphs with Applications to Electrical Networks | [
"math.CO",
"cs.DM",
"cs.SY",
"math-ph",
"math.MP",
"math.OC"
] | Consider a weighted and undirected graph, possibly with self-loops, and its corresponding Laplacian matrix, possibly augmented with additional diagonal elements corresponding to the self-loops. The Kron reduction of this graph is again a graph whose Laplacian matrix is obtained by the Schur complement of the original L... | {
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} |
1102.2955 | Quantum interference channels | [
"quant-ph",
"cs.IT",
"math.IT"
] | The discrete memoryless interference channel is modelled as a conditional probability distribution with two outputs depending on two inputs and has widespread applications in practical communication scenarios. In this paper, we introduce and study the quantum interference channel, a generalization of a two-input, two-o... | {
"Other": 0,
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} |
1102.2969 | Efficient and scalable geometric hashing method for searching protein 3D
structures | [
"cs.DB",
"q-bio.QM"
] | As the structural databases continue to expand, efficient methods are required to search similar structures of the query structure from the database. There are many previous works about comparing protein 3D structures and scanning the database with a query structure. However, they generally have limitations on practica... | {
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} |
1102.2975 | Decentralized Restless Bandit with Multiple Players and Unknown Dynamics | [
"math.OC",
"cs.LG",
"cs.SY",
"math.PR"
] | We consider decentralized restless multi-armed bandit problems with unknown dynamics and multiple players. The reward state of each arm transits according to an unknown Markovian rule when it is played and evolves according to an arbitrary unknown random process when it is passive. Players activating the same arm at th... | {
"Other": 0,
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"cs.SY": 1
} |
1102.2984 | Hybrid Model for Solving Multi-Objective Problems Using Evolutionary
Algorithm and Tabu Search | [
"cs.AI"
] | This paper presents a new multi-objective hybrid model that makes cooperation between the strength of research of neighborhood methods presented by the tabu search (TS) and the important exploration capacity of evolutionary algorithm. This model was implemented and tested in benchmark functions (ZDT1, ZDT2, and ZDT3), ... | {
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} |
1102.2986 | Sidon Sequences and Doubly Periodic Two-Dimensional Synchronization
Patterns | [
"cs.IT",
"math.IT"
] | Sidon sequences and their generalizations have found during the years and especially recently various applications in coding theory. One of the most important applications of these sequences is in the connection of synchronization patterns. A few constructions of two-dimensional synchronization patterns are based on th... | {
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} |
1102.3002 | Secure Multiplex Network Coding | [
"cs.IT",
"cs.CR",
"math.IT"
] | In the secure network coding for multicasting, there is loss of information rate due to inclusion of random bits at the source node. We show a method to eliminate that loss of information rate by using multiple statistically independent messages to be kept secret from an eavesdropper. The proposed scheme is an adaptati... | {
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"cs.SY": 0
} |
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