id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
1011.0450 | From Sparse Signals to Sparse Residuals for Robust Sensing | [
"stat.ML",
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] | One of the key challenges in sensor networks is the extraction of information by fusing data from a multitude of distinct, but possibly unreliable sensors. Recovering information from the maximum number of dependable sensors while specifying the unreliable ones is critical for robust sensing. This sensing task is formu... | {
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1011.0468 | Efficient Triangle Counting in Large Graphs via Degree-based Vertex
Partitioning | [
"cs.DS",
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"physics.soc-ph"
] | The number of triangles is a computationally expensive graph statistic which is frequently used in complex network analysis (e.g., transitivity ratio), in various random graph models (e.g., exponential random graph model) and in important real world applications such as spam detection, uncovering of the hidden thematic... | {
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1011.0472 | Regularized Risk Minimization by Nesterov's Accelerated Gradient
Methods: Algorithmic Extensions and Empirical Studies | [
"cs.LG"
] | Nesterov's accelerated gradient methods (AGM) have been successfully applied in many machine learning areas. However, their empirical performance on training max-margin models has been inferior to existing specialized solvers. In this paper, we first extend AGM to strongly convex and composite objective functions with ... | {
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1011.0474 | Construction of New Delay-Tolerant Space-Time Codes | [
"cs.IT",
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] | Perfect Space-Time Codes (STC) are optimal codes in their original construction for Multiple Input Multiple Output (MIMO) systems. Based on Cyclic Division Algebras (CDA), they are full-rate, full-diversity codes, have Non-Vanishing Determinants (NVD) and hence achieve Diversity-Multiplexing Tradeoff (DMT). In addition... | {
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1011.0487 | Stochastic Simulation of Process Calculi for Biology | [
"cs.PL",
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"q-bio.QM"
] | Biological systems typically involve large numbers of components with complex, highly parallel interactions and intrinsic stochasticity. To model this complexity, numerous programming languages based on process calculi have been developed, many of which are expressive enough to generate unbounded numbers of molecular s... | {
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1011.0488 | Measurable Stochastics for Brane Calculus | [
"cs.CE"
] | We give a stochastic extension of the Brane Calculus, along the lines of recent work by Cardelli and Mardare. In this presentation, the semantics of a Brane process is a measure of the stochastic distribution of possible derivations. To this end, we first introduce a labelled transition system for Brane Calculus, provi... | {
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1011.0489 | An Abstraction Theory for Qualitative Models of Biological Systems | [
"cs.CE",
"cs.DM"
] | Multi-valued network models are an important qualitative modelling approach used widely by the biological community. In this paper we consider developing an abstraction theory for multi-valued network models that allows the state space of a model to be reduced while preserving key properties of the model. This is impor... | {
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1011.0490 | Computational Modeling for the Activation Cycle of G-proteins by
G-protein-coupled Receptors | [
"cs.CE",
"q-bio.QM"
] | In this paper, we survey five different computational modeling methods. For comparison, we use the activation cycle of G-proteins that regulate cellular signaling events downstream of G-protein-coupled receptors (GPCRs) as a driving example. Starting from an existing Ordinary Differential Equations (ODEs) model, we imp... | {
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1011.0491 | Aspects of multiscale modelling in a process algebra for biological
systems | [
"cs.LO",
"cs.CE",
"cs.FL"
] | We propose a variant of the CCS process algebra with new features aiming at allowing multiscale modelling of biological systems. In the usual semantics of process algebras for modelling biological systems actions are instantaneous. When different scale levels of biological systems are considered in a single model, one ... | {
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1011.0492 | Multiscale Bone Remodelling with Spatial P Systems | [
"cs.CE",
"q-bio.QM"
] | Many biological phenomena are inherently multiscale, i.e. they are characterized by interactions involving different spatial and temporal scales simultaneously. Though several approaches have been proposed to provide "multilayer" models, only Complex Automata, derived from Cellular Automata, naturally embed spatial inf... | {
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1011.0493 | Modeling biological systems with delays in Bio-PEPA | [
"cs.CE",
"q-bio.QM"
] | Delays in biological systems may be used to model events for which the underlying dynamics cannot be precisely observed, or to provide abstraction of some behavior of the system resulting more compact models. In this paper we enrich the stochastic process algebra Bio-PEPA, with the possibility of assigning delays to ac... | {
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1011.0494 | Hybrid Calculus of Wrapped Compartments | [
"cs.PL",
"cs.CE",
"q-bio.QM"
] | The modelling and analysis of biological systems has deep roots in Mathematics, specifically in the field of ordinary differential equations (ODEs). Alternative approaches based on formal calculi, often derived from process algebras or term rewriting systems, provide a quite complementary way to analyze the behaviour o... | {
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1011.0496 | Lumpability Abstractions of Rule-based Systems | [
"cs.CE"
] | The induction of a signaling pathway is characterized by transient complex formation and mutual posttranslational modification of proteins. To faithfully capture this combinatorial process in a mathematical model is an important challenge in systems biology. Exploiting the limited context on which most binding and modi... | {
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1011.0498 | Qualitative modelling and analysis of regulations in multi-cellular
systems using Petri nets and topological collections | [
"cs.CE"
] | In this paper, we aim at modelling and analyzing the regulation processes in multi-cellular biological systems, in particular tissues. The modelling framework is based on interconnected logical regulatory networks a la Rene Thomas equipped with information about their spatial relationships. The semantics of such mode... | {
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1011.0502 | A New Email Retrieval Ranking Approach | [
"cs.IR"
] | Email Retrieval task has recently taken much attention to help the user retrieve the email(s) related to the submitted query. Up to our knowledge, existing email retrieval ranking approaches sort the retrieved emails based on some heuristic rules, which are either search clues or some predefined user criteria rooted in... | {
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1011.0506 | A Very Fast Algorithm for Matrix Factorization | [
"stat.CO",
"cs.IR",
"physics.data-an",
"stat.ML"
] | We present a very fast algorithm for general matrix factorization of a data matrix for use in the statistical analysis of high-dimensional data via latent factors. Such data are prevalent across many application areas and generate an ever-increasing demand for methods of dimension reduction in order to undertake the st... | {
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1011.0519 | Stabilizing knowledge through standards - A perspective for the
humanities | [
"cs.CL"
] | It is usual to consider that standards generate mixed feelings among scientists. They are often seen as not really reflecting the state of the art in a given domain and a hindrance to scientific creativity. Still, scientists should theoretically be at the best place to bring their expertise into standard developments, ... | {
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1011.0520 | Adaptive Algorithms for Coverage Control and Space Partitioning in
Mobile Robotic Networks | [
"math.OC",
"cs.RO"
] | This paper considers deployment problems where a mobile robotic network must optimize its configuration in a distributed way in order to minimize a steady-state cost function that depends on the spatial distribution of certain probabilistic events of interest. Moreover, it is assumed that the event location distributio... | {
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1011.0596 | Multiple View Reconstruction of Calibrated Images using Singular Value
Decomposition | [
"cs.CV"
] | Calibration in a multi camera network has widely been studied for over several years starting from the earlier days of photogrammetry. Many authors have presented several calibration algorithms with their relative advantages and disadvantages. In a stereovision system, multiple view reconstruction is a challenging task... | {
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1011.0628 | Significance of Classification Techniques in Prediction of Learning
Disabilities | [
"cs.AI"
] | The aim of this study is to show the importance of two classification techniques, viz. decision tree and clustering, in prediction of learning disabilities (LD) of school-age children. LDs affect about 10 percent of all children enrolled in schools. The problems of children with specific learning disabilities have been... | {
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1011.0630 | Inter-arrival times of message propagation on directed networks | [
"cond-mat.dis-nn",
"cs.NI",
"cs.SI",
"physics.soc-ph"
] | One of the challenges in fighting cybercrime is to understand the dynamics of message propagation on botnets, networks of infected computers used to send viruses, unsolicited commercial emails (SPAM) or denial of service attacks. We map this problem to the propagation of multiple random walkers on directed networks and... | {
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1011.0640 | Lesion Border Detection in Dermoscopy Images | [
"cs.CV"
] | Background: Dermoscopy is one of the major imaging modalities used in the diagnosis of melanoma and other pigmented skin lesions. Due to the difficulty and subjectivity of human interpretation, computerized analysis of dermoscopy images has become an important research area. One of the most important steps in dermoscop... | {
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1011.0673 | Modeling the structure and evolution of discussion cascades | [
"physics.data-an",
"cs.SI",
"physics.soc-ph"
] | We analyze the structure and evolution of discussion cascades in four popular websites: Slashdot, Barrapunto, Meneame and Wikipedia. Despite the big heterogeneities between these sites, a preferential attachment (PA) model with bias to the root can capture the temporal evolution of the observed trees and many of their ... | {
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1011.0686 | A Reduction of Imitation Learning and Structured Prediction to No-Regret
Online Learning | [
"cs.LG",
"cs.AI",
"stat.ML"
] | Sequential prediction problems such as imitation learning, where future observations depend on previous predictions (actions), violate the common i.i.d. assumptions made in statistical learning. This leads to poor performance in theory and often in practice. Some recent approaches provide stronger guarantees in this se... | {
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1011.0774 | Leaders, Followers, and Community Detection | [
"stat.ML",
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"physics.soc-ph"
] | Communities in social networks or graphs are sets of well-connected, overlapping vertices. The effectiveness of a community detection algorithm is determined by accuracy in finding the ground-truth communities and ability to scale with the size of the data. In this work, we provide three contributions. First, we show t... | {
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1011.0786 | Gaussian Process Techniques for Wireless Communications | [
"cs.IT",
"math.IT"
] | Bayesian filtering is a general framework for recursively estimating the state of a dynamical system. Classical solutions such that Kalman filter and Particle filter are introduced in this report. Gaussian processes have been introduced as a non-parametric technique for system estimation from supervision learning. For ... | {
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1011.0800 | Soil Classification Using GATree | [
"cs.NE"
] | This paper details the application of a genetic programming framework for classification of decision tree of Soil data to classify soil texture. The database contains measurements of soil profile data. We have applied GATree for generating classification decision tree. GATree is a decision tree builder that is based on... | {
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1011.0835 | A PDTB-Styled End-to-End Discourse Parser | [
"cs.CL"
] | We have developed a full discourse parser in the Penn Discourse Treebank (PDTB) style. Our trained parser first identifies all discourse and non-discourse relations, locates and labels their arguments, and then classifies their relation types. When appropriate, the attribution spans to these relations are also determin... | {
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1011.0851 | Tracking control with adaption of kites | [
"math.OC",
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] | A novel tracking paradigm for flying geometric trajectories using tethered kites is presented. It is shown how the differential-geometric notion of turning angle can be used as a one-dimensional representation of the kite trajectory, and how this leads to a single-input single-output (SISO) tracking problem. Based on t... | {
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1011.0935 | Probabilistic Inferences in Bayesian Networks | [
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] | Bayesian network is a complete model for the variables and their relationships, it can be used to answer probabilistic queries about them. A Bayesian network can thus be considered a mechanism for automatically applying Bayes' theorem to complex problems. In the application of Bayesian networks, most of the work is rel... | {
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1011.0950 | Detecting Ontological Conflicts in Protocols between Semantic Web
Services | [
"cs.AI"
] | The task of verifying the compatibility between interacting web services has traditionally been limited to checking the compatibility of the interaction protocol in terms of message sequences and the type of data being exchanged. Since web services are developed largely in an uncoordinated way, different services often... | {
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1011.0953 | Overcoming Problems in the Measurement of Biological Complexity | [
"cs.CE",
"cs.NE",
"nlin.AO",
"q-bio.PE"
] | In a genetic algorithm, fluctuations of the entropy of a genome over time are interpreted as fluctuations of the information that the genome's organism is storing about its environment, being this reflected in more complex organisms. The computation of this entropy presents technical problems due to the small populatio... | {
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1011.0997 | Performance Analysis of Spectral Clustering on Compressed, Incomplete
and Inaccurate Measurements | [
"math.NA",
"cs.CV",
"math.FA",
"stat.ML"
] | Spectral clustering is one of the most widely used techniques for extracting the underlying global structure of a data set. Compressed sensing and matrix completion have emerged as prevailing methods for efficiently recovering sparse and partially observed signals respectively. We combine the distance preserving measur... | {
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1011.1035 | Featureless 2D-3D Pose Estimation by Minimising an
Illumination-Invariant Loss | [
"cs.CV"
] | The problem of identifying the 3D pose of a known object from a given 2D image has important applications in Computer Vision ranging from robotic vision to image analysis. Our proposed method of registering a 3D model of a known object on a given 2D photo of the object has numerous advantages over existing methods: It ... | {
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1011.1040 | A parametric approach to list decoding of Reed-Solomon codes using
interpolation | [
"cs.IT",
"math.IT"
] | In this paper we present a minimal list decoding algorithm for Reed-Solomon (RS) codes. Minimal list decoding for a code $C$ refers to list decoding with radius $L$, where $L$ is the minimum of the distances between the received word $\mathbf{r}$ and any codeword in $C$. We consider the problem of determining the value... | {
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1011.1043 | Detecting Communities in Tripartite Hypergraphs | [
"cs.SI",
"physics.soc-ph"
] | In social tagging systems, also known as folksonomies, users collaboratively manage tags to annotate resources. Naturally, social tagging systems can be modeled as a tripartite hypergraph, where there are three different types of nodes, namely users, resources and tags, and each hyperedge has three end nodes, connectin... | {
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1011.1081 | Evolution of Coordination in Social Networks: A Numerical Study | [
"physics.soc-ph",
"cs.SI"
] | Coordination games are important to explain efficient and desirable social behavior. Here we study these games by extensive numerical simulation on networked social structures using an evolutionary approach. We show that local network effects may promote selection of efficient equilibria in both pure and general coordi... | {
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1011.1124 | Opinion formation and cyclic dominance in adaptive networks | [
"nlin.AO",
"cond-mat.dis-nn",
"cs.SI",
"physics.soc-ph"
] | The Rock-Paper-Scissors(RPS) game is a paradigmatic model for cyclic dominance in biological systems. Here we consider this game in the social context of competition between opinions in a networked society. In our model, every agent has an opinion which is drawn from the three choices: rock, paper or scissors. In every... | {
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1011.1161 | Multiarmed Bandit Problems with Delayed Feedback | [
"cs.DS",
"cs.LG"
] | In this paper we initiate the study of optimization of bandit type problems in scenarios where the feedback of a play is not immediately known. This arises naturally in allocation problems which have been studied extensively in the literature, albeit in the absence of delays in the feedback. We study this problem in th... | {
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1011.1212 | CplexA: a Mathematica package to study macromolecular-assembly control
of gene expression | [
"q-bio.QM",
"cond-mat.stat-mech",
"cs.CE",
"physics.bio-ph",
"q-bio.MN"
] | Summary: Macromolecular assembly vertebrates essential cellular processes, such as gene regulation and signal transduction. A major challenge for conventional computational methods to study these processes is tackling the exponential increase of the number of configurational states with the number of components. CplexA... | {
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1011.1225 | On the Capacity of Multiple-Access-Z-Interference Channels | [
"cs.IT",
"math.IT"
] | The capacity of a network in which a multiple access channel (MAC) generates interference to a single-user channel is studied. An achievable rate region based on superposition coding and joint decoding is established for the discrete case. If the interference is very strong, the capacity region is obtained for both the... | {
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1011.1261 | On the Saddle-point Solution and the Large-Coalition Asymptotics of
Fingerprinting Games | [
"cs.IT",
"cs.CR",
"math.IT"
] | We study a fingerprinting game in which the number of colluders and the collusion channel are unknown. The encoder embeds fingerprints into a host sequence and provides the decoder with the capability to trace back pirated copies to the colluders. Fingerprinting capacity has recently been derived as the limit value o... | {
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1011.1264 | Equivalence of the Random Oracle Model and the Ideal Cipher Model,
Revisited | [
"cs.CR",
"cs.CC",
"cs.IT",
"math.IT"
] | We consider the cryptographic problem of constructing an invertible random permutation from a public random function (i.e., which can be accessed by the adversary). This goal is formalized by the notion of indifferentiability of Maurer et al. (TCC 2004). This is the natural extension to the public setting of the well-s... | {
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1011.1293 | Evolutionary Games defined at the Network Mesoscale: The Public Goods
game | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | The evolutionary dynamics of the Public Goods game addresses the emergence of cooperation within groups of individuals. However, the Public Goods game on large populations of interconnected individuals has been usually modeled without any knowledge about their group structure. In this paper, by focusing on collaboratio... | {
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1011.1295 | A Markovian Model for Joint Observations, Bell's Inequality and Hidden
States | [
"cs.IT",
"math.IT",
"quant-ph"
] | While the standard approach to quantum systems studies length preserving linear transformations of wave functions, the Markov picture focuses on trace preserving operators on the space of Hermitian (self-adjoint) matrices. The Markov approach extends the standard one and provides a refined analysis of measurements and ... | {
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1011.1296 | Privately Releasing Conjunctions and the Statistical Query Barrier | [
"cs.DS",
"cs.CR",
"cs.LG"
] | Suppose we would like to know all answers to a set of statistical queries C on a data set up to small error, but we can only access the data itself using statistical queries. A trivial solution is to exhaustively ask all queries in C. Can we do any better? + We show that the number of statistical queries necessary an... | {
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1011.1348 | Probabilistic Sinr Constrained Robust Transmit Beamforming: A
Bernstein-Type Inequality Based Conservative Approach | [
"cs.IT",
"math.IT"
] | Recently, robust transmit beamforming has drawn considerable attention because it can provide guaranteed receiver performance in the presence of channel state information (CSI) errors. Assuming complex Gaussian distributed CSI errors, this paper investigates the robust beamforming design problem that minimizes the tran... | {
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1011.1352 | Average Sum-Rate of Distributed Alamouti Space--Time Scheme in Two-Way
Amplify-and-Forward Relay Networks | [
"cs.IT",
"math.IT"
] | In this paper, we propose a distributed Alamouti space-time code (DASTC) for two-way relay networks employing a single amplify-and-forward (AF) relay. We first derive closed-form expressions for the approximated average sum-rate of the proposed DASTC scheme. Our analysis is validated by a comparison against the results... | {
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1011.1368 | Transformation of Wiktionary entry structure into tables and relations
in a relational database schema | [
"cs.IR"
] | This paper addresses the question of automatic data extraction from the Wiktionary, which is a multilingual and multifunctional dictionary. Wiktionary is a collaborative project working on the same principles as the Wikipedia. The Wiktionary entry is a plain text from the text processing point of view. Wiktionary guide... | {
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1011.1377 | Construction of Network Error Correction Codes in Packet Networks | [
"cs.IT",
"math.IT"
] | Recently, network error correction coding (NEC) has been studied extensively. Several bounds in classical coding theory have been extended to network error correction coding, especially the Singleton bound. In this paper, following the research line using the extended global encoding kernels proposed in \cite{zhang-cor... | {
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1011.1432 | Modeling micro-macro pedestrian counterflow in heterogeneous domains | [
"math-ph",
"cs.SI",
"math.MP",
"physics.soc-ph"
] | We present a micro-macro strategy able to describe the dynamics of crowds in heterogeneous media. Herein we focus on the example of pedestrian counterflow. The main working tools include the use of mass and porosity measures together with their transport as well as suitable application of a version of Radon-Nikodym The... | {
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1011.1478 | Gradient Computation In Linear-Chain Conditional Random Fields Using The
Entropy Message Passing Algorithm | [
"cs.AI"
] | The paper proposes a numerically stable recursive algorithm for the exact computation of the linear-chain conditional random field gradient. It operates as a forward algorithm over the log-domain expectation semiring and has the purpose of enhancing memory efficiency when applied to long observation sequences. Unlike t... | {
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1011.1503 | Quantization using Compressive Sensing | [
"cs.IT",
"math.IT"
] | The problem of compressing a real-valued sparse source using compressive sensing techniques is studied. The rate distortion optimality of a coding scheme in which compressively sensed signals are quantized and then reconstructed is established when the reconstruction is also required to be sparse. The result holds in g... | {
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1011.1508 | Forecast Bias Correction: A Second Order Method | [
"cs.CE",
"math.DS",
"math.OC"
] | The difference between a model forecast and actual observations is called forecast bias. This bias is due to either incomplete model assumptions and/or poorly known parameter values and initial/boundary conditions. In this paper we discuss a method for estimating corrections to parameters and initial conditions that wo... | {
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1011.1518 | Robust Matrix Decomposition with Outliers | [
"stat.ML",
"cs.LG",
"math.NA"
] | Suppose a given observation matrix can be decomposed as the sum of a low-rank matrix and a sparse matrix (outliers), and the goal is to recover these individual components from the observed sum. Such additive decompositions have applications in a variety of numerical problems including system identification, latent var... | {
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1011.1519 | Fuzzy Controller for Matrix Converter System to Improve its Quality of
Output | [
"cs.SY"
] | In this paper, Fuzzy Logic controller is developed for ac/ac Matrix Converter. Furthermore, Total Harmonic Distortion is reduced significantly. Space Vector Algorithm is a method to improve power quality of the converter output. But its quality is limited to 86.7%.We are introduced a Cross coupled DQ axis controller to... | {
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1011.1539 | Cycle structure of permutation functions over finite fields and their
applications | [
"cs.IT",
"math.IT"
] | In this work we establish some new interleavers based on permutation functions. The inverses of these interleavers are known over a finite field $\mathbb{F}_q$. For the first time M\"{o}bius and R\'edei functions are used to give new deterministic interleavers. Furthermore we employ Skolem sequences in order to find ne... | {
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1011.1547 | Being Rational or Aggressive? A Revisit to Dunbar's Number in Online
Social Networks | [
"cs.SI",
"physics.soc-ph"
] | Recent years have witnessed the explosion of online social networks (OSNs). They provide powerful IT-innovations for online social activities such as organizing contacts, publishing contents, and sharing interests between friends who may never meet before. As more and more people become the active users of online socia... | {
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1011.1549 | Multivariate vector sampling expansions in shift invariant subspaces | [
"cs.IT",
"math.IT"
] | In this paper, we study multivariate vector sampling expansions on general finitely generated shift-invariant subspaces. Necessary and sufficient conditions for a multivariate vector sampling theorem to hold are given. | {
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1011.1566 | Robust Rate-Maximization Game Under Bounded Channel Uncertainty | [
"cs.IT",
"math.IT"
] | We consider the problem of decentralized power allocation for competitive rate-maximization in a frequency-selective Gaussian interference channel under bounded channel uncertainty. We formulate a distribution-free robust framework for the rate-maximization game. We present the robust-optimization equilibrium for this ... | {
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1011.1576 | Online Importance Weight Aware Updates | [
"cs.LG"
] | An importance weight quantifies the relative importance of one example over another, coming up in applications of boosting, asymmetric classification costs, reductions, and active learning. The standard approach for dealing with importance weights in gradient descent is via multiplication of the gradient. We first demo... | {
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1011.1581 | Asymptotic Synchronization for Finite-State Sources | [
"nlin.CD",
"cs.IT",
"math.DS",
"math.IT",
"stat.ML"
] | We extend a recent synchronization analysis of exact finite-state sources to nonexact sources for which synchronization occurs only asymptotically. Although the proof methods are quite different, the primary results remain the same. We find that an observer's average uncertainty in the source state vanishes exponential... | {
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1011.1607 | To Feed or Not to Feed Back | [
"cs.IT",
"math.IT"
] | We study the communication over Finite State Channels (FSCs), where the encoder and the decoder can control the availability or the quality of the noise-free feedback. Specifically, the instantaneous feedback is a function of an action taken by the encoder, an action taken by the decoder, and the channel output. Encode... | {
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1011.1660 | Reinforcement Learning Based on Active Learning Method | [
"cs.AI"
] | In this paper, a new reinforcement learning approach is proposed which is based on a powerful concept named Active Learning Method (ALM) in modeling. ALM expresses any multi-input-single-output system as a fuzzy combination of some single-input-singleoutput systems. The proposed method is an actor-critic system similar... | {
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1011.1662 | A New Sufficient Condition for 1-Coverage to Imply Connectivity | [
"cs.AI"
] | An effective approach for energy conservation in wireless sensor networks is scheduling sleep intervals for extraneous nodes while the remaining nodes stay active to provide continuous service. For the sensor network to operate successfully the active nodes must maintain both sensing coverage and network connectivity, ... | {
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1011.1677 | Convergence Rate Analysis of Distributed Gossip (Linear Parameter)
Estimation: Fundamental Limits and Tradeoffs | [
"cs.IT",
"math.IT",
"math.OC",
"math.PR"
] | The paper considers gossip distributed estimation of a (static) distributed random field (a.k.a., large scale unknown parameter vector) observed by sparsely interconnected sensors, each of which only observes a small fraction of the field. We consider linear distributed estimators whose structure combines the informati... | {
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1011.1701 | Analytical Solution of Covariance Evolution for Irregular LDPC Codes | [
"cs.IT",
"math.IT"
] | A scaling law developed by Amraoui et al. is a powerful technique to estimate the block error probability of finite length low-density parity-check (LDPC) codes. Solving a system of differential equations called covariance evolution is a method to obtain the scaling parameter. However, the covariance evolution has not ... | {
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1011.1703 | Point process modeling for directed interaction networks | [
"stat.ME",
"cs.SI",
"math.ST",
"stat.TH"
] | Network data often take the form of repeated interactions between senders and receivers tabulated over time. A primary question to ask of such data is which traits and behaviors are predictive of interaction. To answer this question, a model is introduced for treating directed interactions as a multivariate point proce... | {
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1011.1716 | Least Squares Ranking on Graphs | [
"cs.NA",
"cs.LG",
"math.NA"
] | Given a set of alternatives to be ranked, and some pairwise comparison data, ranking is a least squares computation on a graph. The vertices are the alternatives, and the edge values comprise the comparison data. The basic idea is very simple and old: come up with values on vertices such that their differences match th... | {
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1011.1738 | Regulating Response Time in an Autonomic Computing System: A Comparision
of Proportional Control and Fuzzy Control Approaches | [
"cs.SY"
] | Ecommerce is an area where an Autonomic Computing system could be very effectively deployed. Ecommerce has created demand for high quality information technology services and businesses are seeking quality of service guarantees from their service providers. These guarantees are expressed as part of service level agreem... | {
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1011.1841 | Fundamentals of Mathematical Theory of Emotional Robots | [
"cs.RO",
"cs.AI"
] | In this book we introduce a mathematically formalized concept of emotion, robot's education and other psychological parameters of intelligent robots. We also introduce unitless coefficients characterizing an emotional memory of a robot. Besides, the effect of a robot's memory upon its emotional behavior is studied, and... | {
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1011.1868 | Asymptotically Optimal Randomized Rumor Spreading | [
"cs.DS",
"cs.SI"
] | We propose a new protocol solving the fundamental problem of disseminating a piece of information to all members of a group of n players. It builds upon the classical randomized rumor spreading protocol and several extensions. The main achievements are the following: Our protocol spreads the rumor to all other nodes ... | {
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1011.1876 | Statistical mechanics of digital halftoning | [
"cond-mat.dis-nn",
"cs.CV",
"physics.comp-ph"
] | We consider the problem of digital halftoning from the view point of statistical mechanics. The digital halftoning is a sort of image processing, namely, representing each grayscale in terms of black and white binary dots. The digital halftoning is achieved by making use of the threshold mask, namely, for each pixel, t... | {
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1011.1933 | Shortened Hamming Codes Maximizing Double Error Detection | [
"cs.DM",
"cs.IT",
"math.IT"
] | Given $r\geq 3$ and $2^{r-1}+1\leq n< 2^{r}-1$, an $[n,n-r,3]$ shortened Hamming code that can detect a maximal number of double errors is constructed. The optimality of the construction is proven. | {
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1011.1936 | Blackwell Approachability and Low-Regret Learning are Equivalent | [
"cs.LG",
"cs.GT"
] | We consider the celebrated Blackwell Approachability Theorem for two-player games with vector payoffs. We show that Blackwell's result is equivalent, via efficient reductions, to the existence of "no-regret" algorithms for Online Linear Optimization. Indeed, we show that any algorithm for one such problem can be effici... | {
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1011.1939 | Discrete Partitioning and Coverage Control for Gossiping Robots | [
"cs.RO",
"cs.SY",
"math.OC"
] | We propose distributed algorithms to automatically deploy a team of mobile robots to partition and provide coverage of a non-convex environment. To handle arbitrary non-convex environments, we represent them as graphs. Our partitioning and coverage algorithm requires only short-range, unreliable pairwise "gossip" commu... | {
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1011.1970 | Using Model-based Overlapping Seed Expansion to detect highly
overlapping community structure | [
"physics.soc-ph",
"cs.SI",
"stat.ML"
] | As research into community finding in social networks progresses, there is a need for algorithms capable of detecting overlapping community structure. Many algorithms have been proposed in recent years that are capable of assigning each node to more than a single community. The performance of these algorithms tends to ... | {
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1011.1972 | Assisted Entanglement Distillation | [
"quant-ph",
"cs.IT",
"math.IT"
] | Motivated by the problem of designing quantum repeaters, we study entanglement distillation between two parties, Alice and Bob, starting from a mixed state and with the help of "repeater" stations. To treat the case of a single repeater, we extend the notion of entanglement of assistance to arbitrary mixed tripartite s... | {
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1011.1974 | One-shot Multiparty State Merging | [
"quant-ph",
"cs.IT",
"math.IT"
] | We present a protocol for performing state merging when multiple parties share a single copy of a mixed state, and analyze the entanglement cost in terms of min- and max-entropies. Our protocol allows for interpolation between corner points of the rate region without the need for time-sharing, a primitive which is not ... | {
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1011.2009 | Comparison of Spearman's rho and Kendall's tau in Normal and
Contaminated Normal Models | [
"cs.IT",
"math.IT"
] | This paper analyzes the performances of the Spearman's rho (SR) and Kendall's tau (KT) with respect to samples drawn from bivariate normal and bivariate contaminated normal populations. The exact analytical formulae of the variance of SR and the covariance between SR and KT are obtained based on the Childs's reduction ... | {
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1011.2078 | Design and Analysis of LT Codes with Decreasing Ripple Size | [
"cs.IT",
"cs.NI",
"math.IT"
] | In this paper we propose a new design of LT codes, which decreases the amount of necessary overhead in comparison to existing designs. The design focuses on a parameter of the LT decoding process called the ripple size. This parameter was also a key element in the design proposed in the original work by Luby. Specifica... | {
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1011.2109 | On Secure Transmission over Parallel Relay Eavesdropper Channel | [
"cs.IT",
"math.IT"
] | We study a four terminal parallel relay-eavesdropper channel which consists of multiple independent relay-eavesdropper channels as subchannels. For the discrete memoryless case, we establish inner and outer bounds on the rate-equivocation region. For each subchannel, secure transmission is obtained through one of the t... | {
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1011.2113 | Complexity Adjusted Soft-Output Sphere Decoding by Adaptive LLR Clipping | [
"cs.IT",
"math.IT"
] | A-posteriori probability (APP) receivers operating over multiple-input, multiple-output channels provide enhanced bit error rate (BER) performance at the cost of increased complexity. However, employing full APP processing over favorable transmission environments, where less efficient approaches may already provide the... | {
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1011.2115 | Secure Communication over Parallel Relay Channel | [
"cs.IT",
"math.IT"
] | We investigate the problem of secure communication over parallel relay channel in the presence of a passive eavesdropper. We consider a four terminal relay-eavesdropper channel which consists of multiple relay-eavesdropper channels as subchannels. For the discrete memoryless model, we establish outer and inner bounds o... | {
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1011.2173 | Photometric Catalogue of Quasars and Other Point Sources in the Sloan
Digital Sky Survey | [
"astro-ph.IM",
"cs.AI"
] | We present a catalogue of about 6 million unresolved photometric detections in the Sloan Digital Sky Survey Seventh Data Release classifying them into stars, galaxies and quasars. We use a machine learning classifier trained on a subset of spectroscopically confirmed objects from 14th to 22nd magnitude in the SDSS {\it... | {
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1011.2180 | On Reliability Function of BSC with Noisy Feedback | [
"cs.IT",
"math.IT"
] | For information transmission a binary symmetric channel is used. There is also another noisy binary symmetric channel (feedback channel), and the transmitter observes without delay all the outputs of the forward channel via that feedback channel. The transmission of an exponential number of messages (i.e. the transmiss... | {
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1011.2196 | Degrees of Freedom Regions of Two-User MIMO Z and Full Interference
Channels: The Benefit of Reconfigurable Antennas | [
"cs.IT",
"math.IT"
] | We study the degrees of freedom (DoF) regions of two-user multiple-input multiple-output (MIMO) Z and full interference channels in this paper. We assume that the receivers always have perfect channel state information. We first derive the DoF region of Z interference channel with channel state information at transmitt... | {
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1011.2222 | Static and dynamic characteristics of protein contact networks | [
"cs.CE",
"cs.SI",
"physics.bio-ph",
"q-bio.BM"
] | The principles underlying protein folding remains one of Nature's puzzles with important practical consequences for Life. An approach that has gathered momentum since the late 1990's, looks at protein hetero-polymers and their folding process through the lens of complex network analysis. Consequently, there is now a bo... | {
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1011.2245 | A Distributed Method for Trust-Aware Recommendation in Social Networks | [
"cs.SI"
] | This paper contains the details of a distributed trust-aware recommendation system. Trust-base recommenders have received a lot of attention recently. The main aim of trust-based recommendation is to deal the problems in traditional Collaborative Filtering recommenders. These problems include cold start users, vulnerab... | {
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1011.2272 | Single Frame Image super Resolution using Learned Directionlets | [
"cs.CV"
] | In this paper, a new directionally adaptive, learning based, single image super resolution method using multiple direction wavelet transform, called Directionlets is presented. This method uses directionlets to effectively capture directional features and to extract edge information along different directions of a set ... | {
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1011.2292 | Image Segmentation with Multidimensional Refinement Indicators | [
"math.NA",
"cs.CV"
] | We transpose an optimal control technique to the image segmentation problem. The idea is to consider image segmentation as a parameter estimation problem. The parameter to estimate is the color of the pixels of the image. We use the adaptive parameterization technique which builds iteratively an optimal representation ... | {
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"cs.AI": 0,
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"cs.CV": 1,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2304 | Target tracking in the recommender space: Toward a new recommender
system based on Kalman filtering | [
"cs.AI"
] | In this paper, we propose a new approach for recommender systems based on target tracking by Kalman filtering. We assume that users and their seen resources are vectors in the multidimensional space of the categories of the resources. Knowing this space, we propose an algorithm based on a Kalman filter to track users a... | {
"Other": 0,
"cs.AI": 1,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2313 | Weighted Centroid Algorithm for Estimating Primary User Location:
Theoretical Analysis and Distributed Implementation | [
"cs.PF",
"cs.IT",
"cs.NI",
"math.IT"
] | Information about primary transmitter location is crucial in enabling several key capabilities in cognitive radio networks, including improved spatio-temporal sensing, intelligent location-aware routing, as well as aiding spectrum policy enforcement. Compared to other proposed non-interactive localization algorithms, t... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 0,
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"cs.CR": 0,
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"cs.IR": 0,
"cs.IT": 1,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2336 | A network model with structured nodes | [
"cs.SI",
"cs.CE",
"physics.soc-ph",
"q-bio.MN"
] | We present a network model in which words over a specific alphabet, called {\it structures}, are associated to each node and undirected edges are added depending on some distance between different structures. It is shown that this model can generate, without the use of preferential attachment or any other heuristic, ne... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 1,
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"cs.CR": 0,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 1,
"cs.SY": 0
} |
1011.2348 | Ergodic Control and Polyhedral approaches to PageRank Optimization | [
"math.OC",
"cs.DS",
"cs.SY"
] | We study a general class of PageRank optimization problems which consist in finding an optimal outlink strategy for a web site subject to design constraints. We consider both a continuous problem, in which one can choose the intensity of a link, and a discrete one, in which in each page, there are obligatory links, fac... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 1
} |
1011.2361 | Distributed Storage Codes with Repair-by-Transfer and Non-achievability
of Interior Points on the Storage-Bandwidth Tradeoff | [
"cs.IT",
"cs.DC",
"cs.NI",
"math.IT"
] | Regenerating codes are a class of recently developed codes for distributed storage that, like Reed-Solomon codes, permit data recovery from any subset of k nodes within the n-node network. However, regenerating codes possess in addition, the ability to repair a failed node by connecting to an arbitrary subset of d node... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2488 | Shape Calculus: Timed Operational Semantics and Well-formedness | [
"cs.PL",
"cs.CE",
"cs.CG"
] | The Shape Calculus is a bio-inspired calculus for describing 3D shapes moving in a space. A shape forms a 3D process when combined with a behaviour. Behaviours are specified with a timed CCS-like process algebra using a notion of channel that models naturally binding sites on the surface of shapes. Processes can repres... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 1,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2511 | Individual Privacy vs Population Privacy: Learning to Attack
Anonymization | [
"cs.DB"
] | Over the last decade there have been great strides made in developing techniques to compute functions privately. In particular, Differential Privacy gives strong promises about conclusions that can be drawn about an individual. In contrast, various syntactic methods for providing privacy (criteria such as kanonymity an... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 1,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2512 | Extended Active Learning Method | [
"cs.AI",
"cs.LG"
] | Active Learning Method (ALM) is a soft computing method which is used for modeling and control, based on fuzzy logic. Although ALM has shown that it acts well in dynamic environments, its operators cannot support it very well in complex situations due to losing data. Thus ALM can find better membership functions if mor... | {
"Other": 0,
"cs.AI": 1,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 1,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1011.2515 | Existence of Stable Exclusive Bilateral Exchanges in Networks | [
"cs.GT",
"cs.SI"
] | In this paper we show that when individuals in a bipartite network exclusively choose partners and exchange valued goods with their partners, then there exists a set of exchanges that are pair-wise stable. Pair-wise stability implies that no individual breaks her partnership and no two neighbors in the network can form... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
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"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 1,
"cs.SY": 0
} |
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