id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
1102.4205 | An algebra for signal processing | [
"cs.NA",
"cs.IT",
"math.IT"
] | Our paper presents an attempt to axiomatise signal processing. Our long-term goal is to formulate signal processing algorithms for an ideal world of exact computation and prove properties about them, then interpret these ideal formulations and apply them without change to real world discrete data. We give models of the... | {
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1102.4225 | Model-checking ATL under Imperfect Information and Perfect Recall
Semantics is Undecidable | [
"cs.LO",
"cs.MA"
] | We propose a formal proof of the undecidability of the model checking problem for alternating- time temporal logic under imperfect information and perfect recall semantics. This problem was announced to be undecidable according to a personal communication on multi-player games with imperfect information, but no formal ... | {
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1102.4240 | Sparse neural networks with large learning diversity | [
"cs.LG",
"cs.DS"
] | Coded recurrent neural networks with three levels of sparsity are introduced. The first level is related to the size of messages, much smaller than the number of available neurons. The second one is provided by a particular coding rule, acting as a local constraint in the neural activity. The third one is a characteris... | {
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1102.4258 | SHREC 2011: robust feature detection and description benchmark | [
"cs.CV"
] | Feature-based approaches have recently become very popular in computer vision and image analysis applications, and are becoming a promising direction in shape retrieval. SHREC'11 robust feature detection and description benchmark simulates the feature detection and description stages of feature-based shape retrieval al... | {
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1102.4272 | Bounds on the Achievable Rate for the Fading Relay Channel with Finite
Input Constellations | [
"cs.IT",
"math.IT"
] | We consider the wireless Rayleigh fading relay channel with finite complex input constellations. Assuming global knowledge of the channel state information and perfect synchronization, upper and lower bounds on the achievable rate, for the full-duplex relay, as well as the more practical half-duplex relay (in which the... | {
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1102.4293 | Protein Models Comparator: Scalable Bioinformatics Computing on the
Google App Engine Platform | [
"cs.CE",
"cs.DC",
"q-bio.BM"
] | The comparison of computer generated protein structural models is an important element of protein structure prediction. It has many uses including model quality evaluation, selection of the final models from a large set of candidates or optimisation of parameters of energy functions used in template-free modelling and ... | {
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1102.4360 | Dynamic Homotopy and Landscape Dynamical Set Topology in Quantum Control | [
"quant-ph",
"cs.SY",
"math.OC"
] | We examine the topology of the subset of controls taking a given initial state to a given final state in quantum control, where "state" may mean a pure state |\psi>, an ensemble density matrix \rho, or a unitary propagator U(0,T). The analysis consists in showing that the endpoint map acting on control space is a Hurew... | {
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1102.4374 | Link Prediction by De-anonymization: How We Won the Kaggle Social
Network Challenge | [
"cs.CR",
"cs.LG"
] | This paper describes the winning entry to the IJCNN 2011 Social Network Challenge run by Kaggle.com. The goal of the contest was to promote research on real-world link prediction, and the dataset was a graph obtained by crawling the popular Flickr social photo sharing website, with user identities scrubbed. By de-anony... | {
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1102.4411 | The AWGN Red Alert Problem | [
"cs.IT",
"math.IT"
] | Consider the following unequal error protection scenario. One special message, dubbed the "red alert" message, is required to have an extremely small probability of missed detection. The remainder of the messages must keep their average probability of error and probability of false alarm below a certain threshold. The ... | {
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1102.4429 | A Trajectory UML profile For Modeling Trajectory Data: A Mobile Hospital
Use Case | [
"cs.DB"
] | A large amount of data resulting from trajectories of moving objects activities are collected thanks to localization based services and some associated automated processes. Trajectories data can be used either for transactional and analysis purposes in various domains (heath care, commerce, environment, etc.). For this... | {
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1102.4442 | Internal Regret with Partial Monitoring. Calibration-Based Optimal
Algorithms | [
"cs.LG",
"cs.GT",
"math.OC"
] | We provide consistent random algorithms for sequential decision under partial monitoring, i.e. when the decision maker does not observe the outcomes but receives instead random feedback signals. Those algorithms have no internal regret in the sense that, on the set of stages where the decision maker chose his action ac... | {
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1102.4498 | Digraph description of k-interchange technique for optimization over
permutations and adaptive algorithm system | [
"cs.DS",
"cs.AI",
"math.OC"
] | The paper describes a general glance to the use of element exchange techniques for optimization over permutations. A multi-level description of problems is proposed which is a fundamental to understand nature and complexity of optimization problems over permutations (e.g., ordering, scheduling, traveling salesman probl... | {
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1102.4527 | Data Separation by Sparse Representations | [
"math.NA",
"cs.IT",
"math.IT"
] | Recently, sparsity has become a key concept in various areas of applied mathematics, computer science, and electrical engineering. One application of this novel methodology is the separation of data, which is composed of two (or more) morphologically distinct constituents. The key idea is to carefully select representa... | {
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1102.4528 | Modelling the Dynamics of the Work-Employment System by Predator-Prey
Interactions | [
"cs.CE",
"nlin.AO"
] | The broad application range of the predator-prey modelling enabled us to apply it to represent the dynamics of the work-employment system. For the adopted period, we conclude that this dynamics is chaotic in the beginning of the time series and tends to less perturbed states, as time goes by, due to public policies and... | {
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1102.4563 | Proceedings of the first international workshop on domain-specific
languages for robotic systems (DSLRob 2010) | [
"cs.RO",
"cs.PL"
] | The First International Workshop on Domain-Specific Languages and models for ROBotic systems (DSLRob'10) was held at the 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'10), October 2010 in Taipei, Taiwan. The main topics of the workshop were domain-specific languages and models. A doma... | {
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1102.4570 | Coveting thy neighbors fitness as a means to resolve social dilemmas | [
"q-bio.PE",
"cs.SI",
"physics.soc-ph"
] | In spatial evolutionary games the fitness of each individual is traditionally determined by the payoffs it obtains upon playing the game with its neighbors. Since defection yields the highest individual benefits, the outlook for cooperators is gloomy. While network reciprocity promotes collaborative efforts, chances of... | {
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1102.4573 | The Algebra of Two Dimensional Patterns | [
"cs.IT",
"math.IT"
] | The article presents an algebra to represent two dimensional patterns using reciprocals of polynomials. Such a representation will be useful in neural network training and it provides a method of training patterns that is much more efficient than a pixel-wise representation. | {
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1102.4580 | Gaussian bosonic synergy: quantum communication via realistic channels
of zero quantum capacity | [
"quant-ph",
"cs.IT",
"math.IT"
] | As with classical information, error-correcting codes enable reliable transmission of quantum information through noisy or lossy channels. In contrast to the classical theory, imperfect quantum channels exhibit a strong kind of synergy: there exist pairs of discrete memoryless quantum channels, each of zero quantum cap... | {
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1102.4599 | Towards Unbiased BFS Sampling | [
"cs.SI",
"cs.NI",
"stat.ME"
] | Breadth First Search (BFS) is a widely used approach for sampling large unknown Internet topologies. Its main advantage over random walks and other exploration techniques is that a BFS sample is a plausible graph on its own, and therefore we can study its topological characteristics. However, it has been empirically ob... | {
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1102.4612 | Spatially-Coupled MacKay-Neal Codes and Hsu-Anastasopoulos Codes | [
"cs.IT",
"math.IT"
] | Kudekar et al. recently proved that for transmission over the binary erasure channel (BEC), spatial coupling of LDPC codes increases the BP threshold of the coupled ensemble to the MAP threshold of the underlying LDPC codes. One major drawback of the capacity-achieving spatially-coupled LDPC codes is that one needs to ... | {
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1102.4639 | Non-Conservative Diffusion and its Application to Social Network
Analysis | [
"cs.SI",
"physics.data-an",
"physics.soc-ph"
] | The random walk is fundamental to modeling dynamic processes on networks. Metrics based on the random walk have been used in many applications from image processing to Web page ranking. However, how appropriate are random walks to modeling and analyzing social networks? We argue that unlike a random walk, which conserv... | {
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1102.4646 | Superposition Noisy Network Coding | [
"cs.IT",
"math.IT"
] | We present a superposition coding scheme for communication over a network, which combines partial decode and forward and noisy network coding. This hybrid scheme is termed as superposition noisy network coding. The scheme is designed and analyzed for single relay channel, single source multicast network and multiple so... | {
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1102.4652 | Optimal Quantization for Compressive Sensing under Message Passing
Reconstruction | [
"cs.IT",
"math.IT"
] | We consider the optimal quantization of compressive sensing measurements following the work on generalization of relaxed belief propagation (BP) for arbitrary measurement channels. Relaxed BP is an iterative reconstruction scheme inspired by message passing algorithms on bipartite graphs. Its asymptotic error performan... | {
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1102.4711 | Turbo Codes Based on Time-Variant Memory-1 Convolutional Codes over Fq | [
"cs.IT",
"math.IT"
] | Two classes of turbo codes over high-order finite fields are introduced. The codes are derived from a particular protograph sub-ensemble of the (dv=2,dc=3) low-density parity-check code ensemble. A first construction is derived as a parallel concatenation of two non-binary, time-variant accumulators. The second constru... | {
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1102.4712 | Effective protocols for low-distance file synchronization | [
"cs.IT",
"cs.CC",
"math.IT"
] | Suppose that we have two similar files stored on different computers. We need to send the file from the first computer to the second one trying to minimize the number of bits transmitted. This article presents a survey of results known for this communication complexity problem in the case when files are "similar" in th... | {
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1102.4769 | Data Base Mappings and Monads: (Co)Induction | [
"cs.DB",
"cs.LO",
"math.CT"
] | In this paper we presented the semantics of database mappings in the relational DB category based on the power-view monad T and monadic algebras. The objects in this category are the database-instances (a database-instance is a set of n-ary relations, i.e., a set of relational tables as in standard RDBs). The morphisms... | {
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1102.4771 | Efficient evaluation of polynomials over finite fields | [
"cs.IT",
"math.IT",
"math.NT"
] | A method is described which allows to evaluate efficiently a polynomial in a (possibly trivial) extension of the finite field of its coefficients. Its complexity is shown to be lower than that of standard techniques when the degree of the polynomial is large with respect to the base field. Applications to the syndrome ... | {
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1102.4772 | Polynomial evaluation over finite fields: new algorithms and complexity
bounds | [
"cs.IT",
"math.IT",
"math.NT"
] | An efficient evaluation method is described for polynomials in finite fields. Its complexity is shown to be lower than that of standard techniques when the degree of the polynomial is large enough. Applications to the syndrome computation in the decoding of Reed-Solomon codes are highlighted. | {
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1102.4773 | Performance Analysis of 3-Dimensional Turbo Codes | [
"cs.IT",
"math.IT"
] | In this work, we consider the minimum distance properties and convergence thresholds of 3-dimensional turbo codes (3D-TCs), recently introduced by Berrou et al.. Here, we consider binary 3D-TCs while the original work of Berrou et al. considered double-binary codes. In the first part of the paper, the minimum distance ... | {
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1102.4794 | Information Loss in Static Nonlinearities | [
"cs.IT",
"math.IT",
"nlin.SI"
] | In this work, conditional entropy is used to quantify the information loss induced by passing a continuous random variable through a memoryless nonlinear input-output system. We derive an expression for the information loss depending on the input density and the nonlinearity and show that the result is strongly related... | {
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1102.4803 | Detection of objects in noisy images and site percolation on square
lattices | [
"math.ST",
"cs.CV",
"math.PR",
"stat.AP",
"stat.ME",
"stat.TH"
] | We propose a novel probabilistic method for detection of objects in noisy images. The method uses results from percolation and random graph theories. We present an algorithm that allows to detect objects of unknown shapes in the presence of random noise. Our procedure substantially differs from wavelets-based algorithm... | {
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1102.4807 | Noisy matrix decomposition via convex relaxation: Optimal rates in high
dimensions | [
"stat.ML",
"cs.IT",
"cs.LG",
"math.IT"
] | We analyze a class of estimators based on convex relaxation for solving high-dimensional matrix decomposition problems. The observations are noisy realizations of a linear transformation $\mathfrak{X}$ of the sum of an approximately) low rank matrix $\Theta^\star$ with a second matrix $\Gamma^\star$ endowed with a comp... | {
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1102.4810 | Distributed SNR Estimation using Constant Modulus Signaling over
Gaussian Multiple-Access Channels | [
"cs.IT",
"math.IT"
] | A sensor network is used for distributed joint mean and variance estimation, in a single time snapshot. Sensors observe a signal embedded in noise, which are phase modulated using a constant-modulus scheme and transmitted over a Gaussian multiple-access channel to a fusion center, where the mean and variance are estima... | {
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1102.4812 | Octal Bent Generalized Boolean Functions | [
"math.CO",
"cs.IT",
"math.IT"
] | In this paper we characterize (octal) bent generalized Boolean functions defined on $\BBZ_2^n$ with values in $\BBZ_8$. Moreover, we propose several constructions of such generalized bent functions for both $n$ even and $n$ odd. | {
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1102.4816 | Computationally efficient algorithms for statistical image processing.
Implementation in R | [
"stat.CO",
"cs.CV",
"stat.AP",
"stat.ME",
"stat.ML"
] | In the series of our earlier papers on the subject, we proposed a novel statistical hypothesis testing method for detection of objects in noisy images. The method uses results from percolation theory and random graph theory. We developed algorithms that allowed to detect objects of unknown shapes in the presence of non... | {
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1102.4825 | Computing linear functions by linear coding over networks | [
"cs.IT",
"math.AC",
"math.IT"
] | We consider the scenario in which a set of sources generate messages in a network and a receiver node demands an arbitrary linear function of these messages. We formulate an algebraic test to determine whether an arbitrary network can compute linear functions using linear codes. We identify a class of linear functions ... | {
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1102.4865 | Power-Bandwidth Efficiency and Capacity of Wireless Feedback
Communication Systems | [
"cs.IT",
"math.IT"
] | The paper is devoted to the analysis of problems appearing in optimisation and improvement of the power-bandwidth efficiency of digital communication feedback systems (FCS). There is shown that unlike digital systems, adaptive FCS with the analogue forward transmission allow full optimisation and derivation of optimal ... | {
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1102.4868 | Verifiable and computable performance analysis of sparsity recovery | [
"cs.IT",
"math.IT",
"math.NA"
] | In this paper, we develop verifiable and computable performance analysis of sparsity recovery. We define a family of goodness measures for arbitrary sensing matrices as a set of optimization problems, and design algorithms with a theoretical global convergence guarantee to compute these goodness measures. The proposed ... | {
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1102.4873 | Weighted Radial Variation for Node Feature Classification | [
"physics.data-an",
"cs.CV"
] | Connections created from a node-edge matrix have been traditionally difficult to visualize and analyze because of the number of flows to be rendered in a limited feature or cartographic space. Because analyzing connectivity patterns is useful for understanding the complex dynamics of human and information flow that con... | {
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1102.4876 | Network connectivity during mergers and growth: optimizing the addition
of a module | [
"physics.soc-ph",
"cond-mat.dis-nn",
"cs.SI"
] | The principal eigenvalue $\lambda$ of a network's adjacency matrix often determines dynamics on the network (e.g., in synchronization and spreading processes) and some of its structural properties (e.g., robustness against failure or attack) and is therefore a good indicator for how ``strongly'' a network is connected.... | {
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1102.4878 | Robustness of networks against propagating attacks under vaccination
strategies | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | We study the effect of vaccination on robustness of networks against propagating attacks that obey the susceptible-infected-removed model.By extending the generating function formalism developed by Newman (2005), we analytically determine the robustness of networks that depends on the vaccination parameters. We conside... | {
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1102.4904 | Reverse Engineering of Molecular Networks from a Common Combinatorial
Approach | [
"q-bio.MN",
"cs.CE",
"q-bio.QM"
] | The understanding of molecular cell biology requires insight into the structure and dynamics of networks that are made up of thousands of interacting molecules of DNA, RNA, proteins, metabolites, and other components. One of the central goals of systems biology is the unraveling of the as yet poorly characterized compl... | {
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1102.4922 | Counting Solutions of Constraint Satisfiability Problems:Exact Phase
Transitions and Approximate Algorithm | [
"cs.AI",
"cs.CC"
] | The study of phase transition phenomenon of NP complete problems plays an important role in understanding the nature of hard problems. In this paper, we follow this line of research by considering the problem of counting solutions of Constraint Satisfaction Problems (#CSP). We consider the random model, i.e. RB model. ... | {
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1102.4923 | Further Results on Geometric Properties of a Family of Relative
Entropies | [
"cs.IT",
"math.IT"
] | This paper extends some geometric properties of a one-parameter family of relative entropies. These arise as redundancies when cumulants of compressed lengths are considered instead of expected compressed lengths. These parametric relative entropies are a generalization of the Kullback-Leibler divergence. They satisfy ... | {
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1102.4924 | New Worst-Case Upper Bound for #XSAT | [
"cs.AI"
] | An algorithm running in O(1.1995n) is presented for counting models for exact satisfiability formulae(#XSAT). This is faster than the previously best algorithm which runs in O(1.2190n). In order to improve the efficiency of the algorithm, a new principle, i.e. the common literals principle, is addressed to simplify for... | {
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1102.4925 | Worst-Case Upper Bound for (1, 2)-QSAT | [
"cs.AI",
"cs.CC"
] | The rigorous theoretical analysis of the algorithm for a subclass of QSAT, i.e. (1, 2)-QSAT, has been proposed in the literature. (1, 2)-QSAT, first introduced in SAT'08, can be seen as quantified extended 2-CNF formulas. Until now, within our knowledge, there exists no algorithm presenting the worst upper bound for (1... | {
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1102.4926 | New Worst-Case Upper Bound for X3SAT | [
"cs.AI",
"cs.CC"
] | The rigorous theoretical analyses of algorithms for exact 3-satisfiability (X3SAT) have been proposed in the literature. As we know, previous algorithms for solving X3SAT have been analyzed only regarding the number of variables as the parameter. However, the time complexity for solving X3SAT instances depends not only... | {
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1102.4930 | Short-Message Quantize-Forward Network Coding | [
"cs.IT",
"math.IT"
] | Recent work for single-relay channels shows that quantize-forward (QF) with long-message encoding achieves the same reliable rates as compress-forward (CF) with short-message encoding. It is shown that short-message QF with backward or pipelined (sliding-window) decoding also achieves the same rates. Similarly, for man... | {
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1102.4954 | Minimizing the sum of many rational functions | [
"math.OC",
"cs.SY"
] | We consider the problem of globally minimizing the sum of many rational functions over a given compact semialgebraic set. The number of terms can be large (10 to 100), the degree of each term should be small (up to 10), and the number of variables can be large (10 to 100) provided some kind of sparsity is present. We d... | {
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1102.4967 | Achievable rates for transmission of discrete constellations over the
Gaussian MAC channe | [
"cs.IT",
"math.IT"
] | In this paper we consider the achievable rate region of the Gaussian Multiple Access Channel (MAC) when suboptimal transmission schemes are employed. Focusing on the two-user MAC and assuming uncoded Pulse Amplitude Modulation (PAM), we derive a rate region that is a pentagon, and propose a strategy with which it can b... | {
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1102.4975 | Close or connected? Distance and connectivity effects on transport in
networks | [
"cond-mat.stat-mech",
"cs.SI",
"physics.soc-ph"
] | We develop an analytical approach which provides the dependence of the mean first-passage time (MFPT) for random walks on complex networks both on the target connectivity and on the source-target distance. Our approach puts forward two strongly different behaviors depending on the type - compact or non compact - of the... | {
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1102.5030 | Demonstration of Spectrum Sensing with Blindly Learned Feature | [
"cs.IT",
"math.IT"
] | Spectrum sensing is essential in cognitive radio. By defining leading \textit{eigenvector} as feature, we introduce a blind feature learning algorithm (FLA) and a feature template matching (FTM) algorithm using learned feature for spectrum sensing. We implement both algorithms on Lyrtech software defined radio platform... | {
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} |
1102.5046 | An In-Depth Analysis of Stochastic Kronecker Graphs | [
"cs.SI",
"cs.DM",
"physics.soc-ph"
] | Graph analysis is playing an increasingly important role in science and industry. Due to numerous limitations in sharing real-world graphs, models for generating massive graphs are critical for developing better algorithms. In this paper, we analyze the stochastic Kronecker graph model (SKG), which is the foundation of... | {
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1102.5063 | Topology Discovery of Sparse Random Graphs With Few Participants | [
"cs.SI",
"physics.soc-ph",
"stat.ME"
] | We consider the task of topology discovery of sparse random graphs using end-to-end random measurements (e.g., delay) between a subset of nodes, referred to as the participants. The rest of the nodes are hidden, and do not provide any information for topology discovery. We consider topology discovery under two routing ... | {
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1102.5079 | Measurement Matrix Design for Compressive Sensing Based MIMO Radar | [
"cs.IT",
"math.IT"
] | In colocated multiple-input multiple-output (MIMO) radar using compressive sensing (CS), a receive node compresses its received signal via a linear transformation, referred to as measurement matrix. The samples are subsequently forwarded to a fusion center, where an L1-optimization problem is formulated and solved for ... | {
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1102.5085 | Robustness and modular structure in networks | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | Complex networks have recently attracted much interest due to their prevalence in nature and our daily lives [1, 2]. A critical property of a network is its resilience to random breakdown and failure [3-6], typically studied as a percolation problem [7-9] or by modeling cascading failures [10-12]. Many complex systems,... | {
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1102.5087 | Spatially Coupled LDPC Codes for Decode-and-Forward in Erasure Relay
Channel | [
"cs.IT",
"math.IT"
] | We consider spatially-coupled protograph-based LDPC codes for the three terminal erasure relay channel. It is observed that BP threshold value, the maximal erasure probability of the channel for which decoding error probability converges to zero, of spatially-coupled codes, in particular spatially-coupled MacKay-Neal c... | {
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1102.5112 | Achievable Rates for Channels with Deletions and Insertions | [
"cs.IT",
"math.IT"
] | This paper considers a binary channel with deletions and insertions, where each input bit is transformed in one of the following ways: it is deleted with probability d, or an extra bit is added after it with probability i, or it is transmitted unmodified with probability 1-d-i. A computable lower bound on the capacity ... | {
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1102.5126 | Jump-Diffusion Risk-Sensitive Asset Management II: Jump-Diffusion Factor
Model | [
"q-fin.PM",
"cs.SY",
"math.OC",
"q-fin.CP"
] | In this article we extend earlier work on the jump-diffusion risk-sensitive asset management problem [SIAM J. Fin. Math. (2011) 22-54] by allowing jumps in both the factor process and the asset prices, as well as stochastic volatility and investment constraints. In this case, the HJB equation is a partial integro-diffe... | {
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1102.5138 | Low-Complexity Near-Optimal Codes for Gaussian Relay Networks | [
"cs.IT",
"cs.NI",
"math.IT"
] | We consider the problem of information flow over Gaussian relay networks. Similar to the recent work by Avestimehr \emph{et al.} [1], we propose network codes that achieve up to a constant gap from the capacity of such networks. However, our proposed codes are also computationally tractable. Our main technique is to us... | {
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1102.5185 | Universal Higher Order Grammar | [
"cs.CL",
"cs.AI"
] | We examine the class of languages that can be defined entirely in terms of provability in an extension of the sorted type theory (Ty_n) by embedding the logic of phonologies, without introduction of special types for syntactic entities. This class is proven to precisely coincide with the class of logically closed langu... | {
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1102.5190 | Specifying Data Bases Management Systems by Using RM-ODP Engineering
Language | [
"cs.DB"
] | Distributed systems can be very large and complex. The various considerations that influence their design can result in a substantial specification, which requires a structured framework that has to be managed successfully. The purpose of the RMODP is to define such a framework. The Reference Model for Open Distributed... | {
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1102.5204 | Bilayer LDPC Convolutional Codes for Half-Duplex Relay Channels | [
"cs.IT",
"math.IT"
] | In this paper we present regular bilayer LDPC convolutional codes for half-duplex relay channels. For the binary erasure relay channel, we prove that the proposed code construction achieves the capacities for the source-relay link and the source-destination link provided that the channel conditions are known when desig... | {
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1102.5220 | Coexistence of Interacting Opinions in a Generalized Sznajd Model | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | The Sznajd model is a sociophysics model that mimics the propagation of opinions in a closed society, where the interactions favour groups of agreeing people. It is based in the Ising and Potts ferromagnetic models and although the original model used only linear chains, it has since been adapted to general networks. T... | {
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1102.5225 | Let Us Dance Just a Little Bit More --- On the Information Capacity of
the Human Motor System | [
"cs.IT",
"cs.HC",
"math.IT",
"physics.bio-ph",
"q-bio.NC"
] | Fitts' law is a fundamental tool in measuring the capacity of the human motor system. However, it is, by definition, limited to aimed movements toward spatially expanded targets. We revisit its information-theoretic basis with the goal of generalizing it into unconstrained trained movement such as dance and sports. The... | {
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1102.5253 | On the Szeg\"o-Asymptotics for Doubly-Dispersive Gaussian Channels | [
"cs.IT",
"math.IT"
] | We consider the time-continuous doubly-dispersive channel with additive Gaussian noise and establish a capacity formula for the case where the channel correlation operator is represented by a symbol which is periodic in time and fulfills some further integrability and smoothness conditions. The key to this result is a ... | {
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1102.5275 | Further Results on Quadratic Permutation Polynomial-Based Interleavers
for Turbo Codes | [
"cs.IT",
"math.IT"
] | An interleaver is a critical component for the channel coding performance of turbo codes. Algebraic constructions are of particular interest because they admit analytical designs and simple, practical hardware implementation. Also, the recently proposed quadratic permutation polynomial (QPP) based interleavers by Sun a... | {
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1102.5288 | Sparse Bayesian Methods for Low-Rank Matrix Estimation | [
"stat.ML",
"cs.LG",
"cs.SY",
"math.OC",
"stat.AP"
] | Recovery of low-rank matrices has recently seen significant activity in many areas of science and engineering, motivated by recent theoretical results for exact reconstruction guarantees and interesting practical applications. A number of methods have been developed for this recovery problem. However, a principled meth... | {
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1102.5314 | Jointly Optimal Channel and Power Assignment for Dual-Hop Multi-channel
Multi-user Relaying | [
"cs.IT",
"cs.PF",
"math.IT"
] | We consider the problem of jointly optimizing channel pairing, channel-user assignment, and power allocation, to maximize the weighted sum-rate, in a single-relay cooperative system with multiple channels and multiple users. Common relaying strategies are considered, and transmission power constraints are imposed on bo... | {
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1102.5335 | Block Companion Singer Cycles, Primitive Recursive Vector Sequences, and
Coprime Polynomial Pairs over Finite Fields | [
"math.CO",
"cs.IT",
"math.IT"
] | We discuss a conjecture concerning the enumeration of nonsingular matrices over a finite field that are block companion and whose order is the maximum possible in the corresponding general linear group. A special case is proved using some recent results on the probability that a pair of polynomials with coefficients in... | {
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1102.5337 | Variable Length Coding over the Two-User Multiple-Access Channel | [
"cs.IT",
"math.IT"
] | For discrete memoryless multiple-access channels, we propose a general definition of variable length codes with a measure of the transmission rates at the receiver side. This gives a receiver perspective on the multiple-access channel coding problem and allows us to characterize the region of achievable rates when the ... | {
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1102.5357 | Physical-Layer MIMO Relaying | [
"cs.IT",
"math.IT"
] | The physical-layer network coding (PNC) approach provides improved performance in many scenarios over "traditional" relaying techniques or network coding. This work addresses the generalization of PNC to wireless scenarios where network nodes have multiple antennas. We use a recent matrix decomposition, which allows, b... | {
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1102.5361 | Irreversible k-threshold and majority conversion processes on complete
multipartite graphs and graph products | [
"math.CO",
"cs.DM",
"cs.SI"
] | In graph theoretical models of the spread of disease through populations, the spread of opinion through social networks, and the spread of faults through distributed computer networks, vertices are in two states, either black or white, and these states are dynamically updated at discrete time steps according to the rul... | {
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1102.5364 | On Outage Probability and Diversity-Multiplexing Tradeoff in MIMO Relay
Channels | [
"cs.IT",
"math.IT"
] | Fading MIMO relay channels are studied analytically, when the source and destination are equipped with multiple antennas and the relays have a single one. Compact closed-form expressions are obtained for the outage probability under i.i.d. and correlated Rayleigh-fading links. Low-outage approximations are derived, whi... | {
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1102.5365 | Diversity-Multiplexing Tradeoff in the Low-SNR Regime | [
"cs.IT",
"math.IT"
] | An extension of the popular diversity-multiplexing tradeoff framework to the low-SNR (or wideband) regime is proposed. The concept of diversity gain is shown to be redundant in this regime since the outage probability is SNR-independent and depends on the multiplexing gain and the channel power gain statistics only. Th... | {
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1102.5381 | Blind Adaptive Subcarrier Combining Technique for MC-CDMA Receiver in
Mobile Rayleigh Channel | [
"cs.IT",
"math.IT"
] | A new subcarrier combining technique is proposed for MC -CDMA receiver in mobile Rayleigh fading channel. It exploits the structure formed by repeating spreading sequences of users on different subcarriers to simultaneously suppress multiple access interference (MAI) and provide implicit channel tracking without any kn... | {
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1102.5385 | Back and Forth Between Rules and SE-Models (Extended Version) | [
"cs.AI"
] | Rules in logic programming encode information about mutual interdependencies between literals that is not captured by any of the commonly used semantics. This information becomes essential as soon as a program needs to be modified or further manipulated. We argue that, in these cases, a program should not be viewed s... | {
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1102.5386 | Linear Programming based Detectors for Two-Dimensional Intersymbol
Interference Channels | [
"cs.IT",
"math.IT"
] | We present and study linear programming based detectors for two-dimensional intersymbol interference channels. Interesting instances of two-dimensional intersymbol interference channels are magnetic storage, optical storage and Wyner's cellular network model. We show that the optimal maximum a posteriori detection in... | {
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1102.5388 | Energy Efficiency and Goodput Analysis in Two-Way Wireless Relay
Networks | [
"cs.IT",
"math.IT"
] | In this paper, we study two-way relay networks (TWRNs) in which two source nodes exchange their information via a relay node indirectly in Rayleigh fading channels. Both Amplify-and-Forward (AF) and Decode-and-Forward (DF) techniques have been analyzed in the TWRN employing a Markov chain model through which the networ... | {
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1102.5389 | Program-Size Versus Time Complexity, Speed-Up and Slowdown Phenomena in
Small Turing Machines | [
"cs.CC",
"cs.IT",
"math.IT"
] | The aim of this paper is to undertake an experimental investigation of the trade-offs between program-size and time computational complexity. The investigation includes an exhaustive exploration and systematic study of the functions computed by the set of all 2-color Turing machines with 2, 3 and 4 states--denoted by (... | {
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1102.5396 | Deformed Statistics Free Energy Model for Source Separation using
Unsupervised Learning | [
"cond-mat.stat-mech",
"cs.IT",
"cs.LG",
"math.IT"
] | A generalized-statistics variational principle for source separation is formulated by recourse to Tsallis' entropy subjected to the additive duality and employing constraints described by normal averages. The variational principle is amalgamated with Hopfield-like learning rules resulting in an unsupervised learning mo... | {
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1102.5400 | Power Allocation for Cognitive Wireless Mesh Networks by Applying
Multi-agent Q-learning Approach | [
"cs.IT",
"math.IT"
] | As the scarce spectrum resource is becoming over-crowded, cognitive radios (CRs) indicate great flexibility to improve the spectrum efficiency by opportunistically accessing the authorized frequency bands. One of the critical challenges for operating such radios in a network is how to efficiently allocate transmission ... | {
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1102.5401 | Minimax state estimation for linear descriptor systems | [
"math.OC",
"cs.SY"
] | Author's Summary of the dissertation for the degree of the Candidate of Science (physics and mathematics). The aim of the dissertation is to develop a generalized Kalman Duality concept applicable for linear unbounded non-invertible operators and introduce the minimax state estimation theory and algorithms for linear d... | {
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1102.5407 | Random Networks with given Rich-club Coefficient | [
"physics.soc-ph",
"cs.SI"
] | In complex networks it is common to model a network or generate a surrogate network based on the conservation of the network's degree distribution. We provide an alternative network model based on the conservation of connection density within a set of nodes. This density is measure by the rich-club coefficient. We pres... | {
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1102.5418 | Kolmogorov complexity as a language | [
"cs.IT",
"math.IT",
"math.LO"
] | The notion of Kolmogorov complexity (=the minimal length of a program that generates some object) is often useful as a kind of language that allows us to reformulate some notions and therefore provide new intuition. In this survey we provide (with minimal comments) many different examples where notions and statements t... | {
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1102.5420 | On the effect of the path length and transitivity of small-world
networks on epidemic dynamics | [
"cs.SI",
"math.DS",
"physics.soc-ph"
] | We show how one can trace in a systematic way the coarse-grained solutions of individual-based stochastic epidemic models evolving on heterogeneous complex networks with respect to their topological characteristics. In particular, we have developed algorithms that allow the tuning of the transitivity (clustering coeffi... | {
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1102.5442 | Blind Adaptive Successive Interference Cancellation for Multicarrier
DS-CDMA | [
"cs.IT",
"math.IT"
] | A new adaptive receiver design for the Multicarrier (MC) DS-CDMA is proposed employing successive interference cancellation (SIC) architecture. One of the main problems limiting the performance of SIC in MC DS-CDMA is the imperfect estimation of multiple access interference (MAI), and hence, the limited frequency diver... | {
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1102.5448 | Continuous Multiclass Labeling Approaches and Algorithms | [
"cs.CV",
"math.OC"
] | We study convex relaxations of the image labeling problem on a continuous domain with regularizers based on metric interaction potentials. The generic framework ensures existence of minimizers and covers a wide range of relaxations of the originally combinatorial problem. We focus on two specific relaxations that diffe... | {
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1102.5451 | Reduction of fuzzy automata by means of fuzzy quasi-orders | [
"cs.FL",
"cs.AI"
] | In our recent paper we have established close relationships between state reduction of a fuzzy recognizer and resolution of a particular system of fuzzy relation equations. In that paper we have also studied reductions by means of those solutions which are fuzzy equivalences. In this paper we will see that in some case... | {
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1102.5452 | Bisimulations for fuzzy automata | [
"cs.FL",
"cs.AI"
] | Bisimulations have been widely used in many areas of computer science to model equivalence between various systems, and to reduce the number of states of these systems, whereas uniform fuzzy relations have recently been introduced as a means to model the fuzzy equivalence between elements of two possible different sets... | {
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} |
1102.5458 | Improving Image Search based on User Created Communities | [
"cs.IR"
] | Tag-based retrieval of multimedia content is a difficult problem, not only because of the shorter length of tags associated with images and videos, but also due to mismatch in the terminologies used by searcher and content creator. To alleviate this problem, we propose a simple concept-driven probabilistic model for im... | {
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} |
1102.5461 | Distributed Opportunistic Channel Access in Wireless Relay Networks | [
"cs.IT",
"math.IT"
] | In this paper, the problem of distributed opportunistic channel access in wireless relaying is investigated. A relay network with multiple source-destination pairs and multiple relays is considered. All the source nodes contend through a random access procedure. A winner source node may give up its transmission opportu... | {
"Other": 0,
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} |
1102.5462 | Summary Based Structures with Improved Sublinear Recovery for Compressed
Sensing | [
"cs.IT",
"math.IT"
] | We introduce a new class of measurement matrices for compressed sensing, using low order summaries over binary sequences of a given length. We prove recovery guarantees for three reconstruction algorithms using the proposed measurements, including $\ell_1$ minimization and two combinatorial methods. In particular, one ... | {
"Other": 0,
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"cs.SD": 0,
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} |
1102.5482 | A Note on the Compaction of long Training Sequences for Universal
Classification -a Non-Probabilistic Approach | [
"cs.IT",
"math.IT"
] | One of the central problems in the classification of individual test sequences (e.g. genetic analysis), is that of checking for the similarity of sample test sequences as compared with a set of much longer training sequences. This is done by a set of classifiers for test sequences of length N, where each of the classif... | {
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"cs.SD": 0,
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} |
1102.5496 | Efficient regularized isotonic regression with application to gene--gene
interaction search | [
"stat.ME",
"cs.SY",
"math.OC",
"stat.AP"
] | Isotonic regression is a nonparametric approach for fitting monotonic models to data that has been widely studied from both theoretical and practical perspectives. However, this approach encounters computational and statistical overfitting issues in higher dimensions. To address both concerns, we present an algorithm, ... | {
"Other": 0,
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"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 1
} |
1102.5499 | Information filtering via preferential diffusion | [
"physics.data-an",
"cs.IR"
] | Recommender systems have shown great potential to address information overload problem, namely to help users in finding interesting and relevant objects within a huge information space. Some physical dynamics, including heat conduction process and mass or energy diffusion on networks, have recently found applications i... | {
"Other": 0,
"cs.AI": 0,
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} |
1102.5509 | Probabilistic analysis of the human transcriptome with side information | [
"stat.ML",
"cs.CE",
"q-bio.GN",
"q-bio.MN",
"q-bio.QM",
"stat.AP",
"stat.ME"
] | Understanding functional organization of genetic information is a major challenge in modern biology. Following the initial publication of the human genome sequence in 2001, advances in high-throughput measurement technologies and efficient sharing of research material through community databases have opened up new view... | {
"Other": 0,
"cs.AI": 0,
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"cs.RO": 0,
"cs.SD": 0,
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"cs.SY": 0
} |
1102.5511 | A Fast Algorithm for the Discrete Core/Periphery Bipartitioning Problem | [
"physics.soc-ph",
"cs.DS",
"cs.SI"
] | Various methods have been proposed in the literature to determine an optimal partitioning of the set of actors in a network into core and periphery subsets. However, these methods either work only for relatively small input sizes, or do not guarantee an optimal answer. In this paper, we propose a new algorithm to solve... | {
"Other": 1,
"cs.AI": 0,
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"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 1,
"cs.SY": 0
} |
1102.5535 | Full Rate Collaborative Diversity Scheme for Multiple Access Fading
Channels | [
"cs.IT",
"math.IT"
] | User cooperation is a well-known approach to achieve diversity without multiple antennas, however at the cost of inevitable loss of rate mostly due to the need of additional channels for relaying. A new collaborative diversity scheme is proposed here for multiple access fading channels to attain full rate with near max... | {
"Other": 0,
"cs.AI": 0,
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"cs.CR": 0,
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"cs.SD": 0,
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"cs.SY": 0
} |
1102.5549 | Instant Replay: Investigating statistical Analysis in Sports | [
"stat.AP",
"cs.AI",
"physics.data-an",
"stat.ML"
] | Technology has had an unquestionable impact on the way people watch sports. Along with this technological evolution has come a higher standard to ensure a good viewing experience for the casual sports fan. It can be argued that the pervasion of statistical analysis in sports serves to satiate the fan's desire for detai... | {
"Other": 0,
"cs.AI": 1,
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"cs.SY": 0
} |
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