id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
cs/0606011 | Vectorial Resilient $PC(l)$ of Order $k$ Boolean Functions from AG-Codes | [
"cs.CR",
"cs.IT",
"math.IT"
] | Propagation criterion of degree $l$ and order $k$ ($PC(l)$ of order $k$) and resiliency of vectorial Boolean functions are important for cryptographic purpose (see [1, 2, 3,6, 7,8,10,11,16]. Kurosawa, Stoh [8] and Carlet [1] gave a construction of Boolean functions satisfying $PC(l)$ of order $k$ from binary linear or ... | {
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cs/0606014 | On the Capacity of Multiple Access Channels with State Information and
Feedback | [
"cs.IT",
"math.IT"
] | In this paper, the multiple access channel (MAC) with channel state is analyzed in a scenario where a) the channel state is known non-causally to the transmitters and b) there is perfect causal feedback from the receiver to the transmitters. An achievable region and an outer bound are found for a discrete memoryless MA... | {
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cs/0606015 | The Size of Optimal Sequence Sets for Synchronous CDMA Systems | [
"cs.IT",
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] | The sum capacity on a symbol-synchronous CDMA system having processing gain $N$ and supporting $K$ power constrained users is achieved by employing at most $2N-1$ sequences. Analogously, the minimum received power (energy-per-chip) on the symbol-synchronous CDMA system supporting $K$ users that demand specified data ra... | {
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cs/0606016 | Performance Analysis of Iterative Channel Estimation and Multiuser
Detection in Multipath DS-CDMA Channels | [
"cs.IT",
"math.IT"
] | This paper examines the performance of decision feedback based iterative channel estimation and multiuser detection in channel coded aperiodic DS-CDMA systems operating over multipath fading channels. First, explicit expressions describing the performance of channel estimation and parallel interference cancellation bas... | {
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cs/0606017 | From semiotics of hypermedia to physics of semiosis: A view from system
theory | [
"cs.HC",
"cs.CL",
"cs.IT",
"math.IT"
] | Given that theoretical analysis and empirical validation is fundamental to any model, whether conceptual or formal, it is surprising that these two tools of scientific discovery are so often ignored in the contemporary studies of communication. In this paper, we pursued the ideas of a) correcting and expanding the mode... | {
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cs/0606020 | Imagination as Holographic Processor for Text Animation | [
"cs.AI"
] | Imagination is the critical point in developing of realistic artificial intelligence (AI) systems. One way to approach imagination would be simulation of its properties and operations. We developed two models: AI-Brain Network Hierarchy of Languages and Semantical Holographic Calculus as well as simulation system Scrip... | {
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cs/0606021 | A simulation engine to support production scheduling using
genetics-based machine learning | [
"cs.CE",
"cs.AI"
] | The ever higher complexity of manufacturing systems, continually shortening life cycles of products and their increasing variety, as well as the unstable market situation of the recent years require introducing grater flexibility and responsiveness to manufacturing processes. From this perspective, one of the critical ... | {
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cs/0606022 | Limited Feedback Beamforming Over Temporally-Correlated Channels | [
"cs.IT",
"math.IT"
] | Feedback of quantized channel state information (CSI), called limited feedback, enables transmit beamforming in multiple-input-multiple-output (MIMO) wireless systems with a small amount of overhead. Due to its efficiency, beamforming with limited feedback has been adopted in several wireless communication standards. P... | {
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cs/0606024 | Consecutive Support: Better Be Close! | [
"cs.AI",
"cs.DB"
] | We propose a new measure of support (the number of occur- rences of a pattern), in which instances are more important if they occur with a certain frequency and close after each other in the stream of trans- actions. We will explain this new consecutive support and discuss how patterns can be found faster by pruning th... | {
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cs/0606026 | Generating parity check equations for bounded-distance iterative erasure
decoding | [
"cs.IT",
"math.IT"
] | A generic $(r,m)$-erasure correcting set is a collection of vectors in $\bF_2^r$ which can be used to generate, for each binary linear code of codimension $r$, a collection of parity check equations that enables iterative decoding of all correctable erasure patterns of size at most $m$. That is to say, the only stopp... | {
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cs/0606027 | Building a logical model in the machining domain for CAPP expert systems | [
"cs.AI",
"cs.CE",
"cs.SE"
] | Recently, extensive efforts have been made on the application of expert system technique to solving the process planning task in the machining domain. This paper introduces a new formal method to design CAPP expert systems. The formal method is applied to provide a contour of the CAPP expert system building technology.... | {
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cs/0606029 | Belief Calculus | [
"cs.AI"
] | In Dempster-Shafer belief theory, general beliefs are expressed as belief mass distribution functions over frames of discernment. In Subjective Logic beliefs are expressed as belief mass distribution functions over binary frames of discernment. Belief representations in Subjective Logic, which are called opinions, also... | {
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cs/0606035 | Finding roots of polynomials over finite fields | [
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"math.IT"
] | We propose an improved algorithm for finding roots of polynomials over finite fields. This makes possible significant speedup of the decoding process of Bose-Chaudhuri-Hocquenghem, Reed-Solomon, and some other error-correcting codes. | {
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cs/0606039 | Evolutionary Design: Philosophy, Theory, and Application Tactics | [
"cs.CE",
"cs.AI"
] | Although it has contributed to remarkable improvements in some specific areas, attempts to develop a universal design theory are generally characterized by failure. This paper sketches arguments for a new approach to engineering design based on Semiotics - the science about signs. The approach is to combine different d... | {
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cs/0606048 | A New Quartet Tree Heuristic for Hierarchical Clustering | [
"cs.DS",
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"cs.DM",
"math.ST",
"physics.data-an",
"q-bio.QM",
"stat.TH"
] | We consider the problem of constructing an an optimal-weight tree from the 3*(n choose 4) weighted quartet topologies on n objects, where optimality means that the summed weight of the embedded quartet topologiesis optimal (so it can be the case that the optimal tree embeds all quartets as non-optimal topologies). We p... | {
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cs/0606049 | Decentralized Erasure Codes for Distributed Networked Storage | [
"cs.IT",
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"math.IT"
] | We consider the problem of constructing an erasure code for storage over a network when the data sources are distributed. Specifically, we assume that there are n storage nodes with limited memory and k<n sources generating the data. We want a data collector, who can appear anywhere in the network, to query any k stora... | {
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cs/0606051 | Minimum Pseudo-Weight and Minimum Pseudo-Codewords of LDPC Codes | [
"cs.IT",
"math.IT"
] | In this correspondence, we study the minimum pseudo-weight and minimum pseudo-codewords of low-density parity-check (LDPC) codes under linear programming (LP) decoding. First, we show that the lower bound of Kelly, Sridhara, Xu and Rosenthal on the pseudo-weight of a pseudo-codeword of an LDPC code with girth greater t... | {
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cs/0606052 | Topology for Distributed Inference on Graphs | [
"cs.IT",
"math.IT"
] | Let $N$ local decision makers in a sensor network communicate with their neighbors to reach a decision \emph{consensus}. Communication is local, among neighboring sensors only, through noiseless or noisy links. We study the design of the network topology that optimizes the rate of convergence of the iterative decision ... | {
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cs/0606060 | Complex Networks: New Concepts and Tools for Real-Time Imaging and
Vision | [
"cs.CV",
"cs.DC",
"physics.soc-ph"
] | This article discusses how concepts and methods of complex networks can be applied to real-time imaging and computer vision. After a brief introduction of complex networks basic concepts, their use as means to represent and characterize images, as well as for modeling visual saliency, are briefly described. The possibi... | {
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cs/0606062 | Logics for Unranked Trees: An Overview | [
"cs.LO",
"cs.DB"
] | Labeled unranked trees are used as a model of XML documents, and logical languages for them have been studied actively over the past several years. Such logics have different purposes: some are better suited for extracting data, some for expressing navigational properties, and some make it easy to relate complex proper... | {
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cs/0606065 | On the complexity of XPath containment in the presence of disjunction,
DTDs, and variables | [
"cs.DB",
"cs.LO"
] | XPath is a simple language for navigating an XML-tree and returning a set of answer nodes. The focus in this paper is on the complexity of the containment problem for various fragments of XPath. We restrict attention to the most common XPath expressions which navigate along the child and/or descendant axis. In addition... | {
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cs/0606066 | The Cumulative Rule for Belief Fusion | [
"cs.AI"
] | The problem of combining beliefs in the Dempster-Shafer belief theory has attracted considerable attention over the last two decades. The classical Dempster's Rule has often been criticised, and many alternative rules for belief combination have been proposed in the literature. The consensus operator for combining beli... | {
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cs/0606069 | Inference and Evaluation of the Multinomial Mixture Model for Text
Clustering | [
"cs.IR",
"cs.CL"
] | In this article, we investigate the use of a probabilistic model for unsupervised clustering in text collections. Unsupervised clustering has become a basic module for many intelligent text processing applications, such as information retrieval, text classification or information extraction. The model considered in thi... | {
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cs/0606070 | Is there an Elegant Universal Theory of Prediction? | [
"cs.AI",
"cs.CC"
] | Solomonoff's inductive learning model is a powerful, universal and highly elegant theory of sequence prediction. Its critical flaw is that it is incomputable and thus cannot be used in practice. It is sometimes suggested that it may still be useful to help guide the development of very general and powerful theories of ... | {
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cs/0606071 | Scheduling and Codeword Length Optimization in Time Varying Wireless
Networks | [
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"math.IT"
] | In this paper, a downlink scenario in which a single-antenna base station communicates with K single antenna users, over a time-correlated fading channel, is considered. It is assumed that channel state information is perfectly known at each receiver, while the statistical characteristics of the fading process and the ... | {
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cs/0606073 | Comparison of the estimation of the degree of polarization from four or
two intensity images degraded by speckle noise | [
"cs.IR",
"physics.optics"
] | Active polarimetric imagery is a powerful tool for accessing the information present in a scene. Indeed, the polarimetric images obtained can reveal polarizing properties of the objects that are not avalaible using conventional imaging systems. However, when coherent light is used to illuminate the scene, the images ar... | {
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cs/0606074 | Rate Regions for Relay Broadcast Channels | [
"cs.IT",
"math.IT"
] | A partially cooperative relay broadcast channel (RBC) is a three-node network with one source node and two destination nodes (destinations 1 and 2) where destination 1 can act as a relay to assist destination 2. Inner and outer bounds on the capacity region of the discrete memoryless partially cooperative RBC are obtai... | {
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cs/0606075 | 10^(10^6) Worlds and Beyond: Efficient Representation and Processing of
Incomplete Information | [
"cs.DB"
] | Current systems and formalisms for representing incomplete information generally suffer from at least one of two weaknesses. Either they are not strong enough for representing results of simple queries, or the handling and processing of the data, e.g. for query evaluation, is intractable. In this paper, we present a ... | {
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cs/0606077 | On Sequence Prediction for Arbitrary Measures | [
"cs.LG"
] | Suppose we are given two probability measures on the set of one-way infinite finite-alphabet sequences and consider the question when one of the measures predicts the other, that is, when conditional probabilities converge (in a certain sense) when one of the measures is chosen to generate the sequence. This question m... | {
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cs/0606078 | Dimension Extractors and Optimal Decompression | [
"cs.CC",
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"math.IT"
] | A *dimension extractor* is an algorithm designed to increase the effective dimension -- i.e., the amount of computational randomness -- of an infinite binary sequence, in order to turn a "partially random" sequence into a "more random" sequence. Extractors are exhibited for various effective dimensions, including const... | {
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cs/0606081 | New Millennium AI and the Convergence of History | [
"cs.AI"
] | Artificial Intelligence (AI) has recently become a real formal science: the new millennium brought the first mathematically sound, asymptotically optimal, universal problem solvers, providing a new, rigorous foundation for the previously largely heuristic field of General AI and embedded agents. At the same time there ... | {
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cs/0606083 | The Diversity Order of the Semidefinite Relaxation Detector | [
"cs.IT",
"math.IT"
] | We consider the detection of binary (antipodal) signals transmitted in a spatially multiplexed fashion over a fading multiple-input multiple-output (MIMO) channel and where the detection is done by means of semidefinite relaxation (SDR). The SDR detector is an attractive alternative to maximum likelihood (ML) detection... | {
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cs/0606084 | The Completeness of Propositional Resolution: A Simple and
Constructive<br> Proof | [
"cs.LO",
"cs.AI"
] | It is well known that the resolution method (for propositional logic) is complete. However, completeness proofs found in the literature use an argument by contradiction showing that if a set of clauses is unsatisfiable, then it must have a resolution refutation. As a consequence, none of these proofs actually gives an ... | {
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cs/0606090 | Error Rate Analysis for Coded Multicarrier Systems over Quasi-Static
Fading Channels | [
"cs.IT",
"math.IT"
] | Several recent standards such as IEEE 802.11a/g, IEEE 802.16, and ECMA Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) for high data-rate Ultra-Wideband (UWB), employ bit-interleaved convolutionally-coded multicarrier modulation over quasi-static fading channels. Motivated by the lack of appropriate erro... | {
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cs/0606093 | Predictions as statements and decisions | [
"cs.LG"
] | Prediction is a complex notion, and different predictors (such as people, computer programs, and probabilistic theories) can pursue very different goals. In this paper I will review some popular kinds of prediction and argue that the theory of competitive on-line learning can benefit from the kinds of prediction that a... | {
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cs/0606094 | On Typechecking Top-Down XML Tranformations: Fixed Input or Output
Schemas | [
"cs.DB",
"cs.PL"
] | Typechecking consists of statically verifying whether the output of an XML transformation always conforms to an output type for documents satisfying a given input type. In this general setting, both the input and output schema as well as the transformation are part of the input for the problem. However, scenarios where... | {
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cs/0606096 | Building a resource for studying translation shifts | [
"cs.CL"
] | This paper describes an interdisciplinary approach which brings together the fields of corpus linguistics and translation studies. It presents ongoing work on the creation of a corpus resource in which translation shifts are explicitly annotated. Translation shifts denote departures from formal correspondence between s... | {
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cs/0606097 | Synonym search in Wikipedia: Synarcher | [
"cs.IR",
"cs.DM"
] | The program Synarcher for synonym (and related terms) search in the text corpus of special structure (Wikipedia) was developed. The results of the search are presented in the form of graph. It is possible to explore the graph and search for graph elements interactively. Adapted HITS algorithm for synonym search, progra... | {
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cs/0606099 | Fairness in Multiuser Systems with Polymatroid Capacity Region | [
"cs.IT",
"math.IT"
] | For a wide class of multi-user systems, a subset of capacity region which includes the corner points and the sum-capacity facet has a special structure known as polymatroid. Multiaccess channels with fixed input distributions and multiple-antenna broadcast channels are examples of such systems. Any interior point of th... | {
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cs/0606100 | The generating function of the polytope of transport matrices $U(r,c)$
as a positive semidefinite kernel of the marginals $r$ and $c$ | [
"cs.LG",
"cs.DM"
] | This paper has been withdrawn by the author due to a crucial error in the proof of Lemma 5. | {
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cs/0606104 | An information-spectrum approach to large deviation theorems | [
"cs.IT",
"math.IT"
] | In this paper we show a some new look at large deviation theorems from the viewpoint of the information-spectrum (IS) methods, which has been first exploited in information theory, and also demonstrate a new basic formula for the large deviation rate function in general, which is a pair of the lower and upper IS rate f... | {
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cs/0606105 | Iso9000 Based Advanced Quality Approach for Continuous Improvement of
Manufacturing Processes | [
"cs.IR"
] | The continuous improvement in TQM is considered as the core value by which organisation could maintain a competitive edge. Several techniques and tools are known to support this core value but most of the time these techniques are informal and without modelling the interdependence between the core value and tools. Thus... | {
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cs/0606106 | Self-orthogonality of $q$-ary Images of $q^m$-ary Codes and Quantum Code
Construction | [
"cs.IT",
"math.IT"
] | A code over GF$(q^m)$ can be imaged or expanded into a code over GF$(q)$ using a basis for the extension field over the base field. The properties of such an image depend on the original code and the basis chosen for imaging. Problems relating the properties of a code and its image with respect to a basis have been of ... | {
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cs/0606114 | Hidden Markov Process: A New Representation, Entropy Rate and Estimation
Entropy | [
"cs.IT",
"math.IT"
] | We consider a pair of correlated processes {Z_n} and {S_n} (two sided), where the former is observable and the later is hidden. The uncertainty in the estimation of Z_n upon its finite past history is H(Z_n|Z_0^{n-1}), and for estimation of S_n upon this observation is H(S_n|Z_0^{n-1}), which are both sequences of n. T... | {
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cs/0606115 | Evaluating Variable Length Markov Chain Models for Analysis of User Web
Navigation Sessions | [
"cs.AI",
"cs.IR"
] | Markov models have been widely used to represent and analyse user web navigation data. In previous work we have proposed a method to dynamically extend the order of a Markov chain model and a complimentary method for assessing the predictive power of such a variable length Markov chain. Herein, we review these two meth... | {
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cs/0606117 | Performance comparison of multi-user detectors for the downlink of a
broadband MC-CDMA system | [
"cs.IT",
"math.IT"
] | In this paper multi-user detection techniques, such as Parallel and Serial Interference Cancellations (PIC & SIC), General Minimum Mean Square Error (GMMSE) and polynomial MMSE, for the downlink of a broadband Multi-Carrier Code Division Multiple Access (MCCDMA) system are investigated. The Bit Error Rate (BER) and Fra... | {
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cs/0606118 | Adapting a general parser to a sublanguage | [
"cs.CL",
"cs.IR"
] | In this paper, we propose a method to adapt a general parser (Link Parser) to sublanguages, focusing on the parsing of texts in biology. Our main proposal is the use of terminology (identication and analysis of terms) in order to reduce the complexity of the text to be parsed. Several other strategies are explored and ... | {
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cs/0606119 | Lexical Adaptation of Link Grammar to the Biomedical Sublanguage: a
Comparative Evaluation of Three Approaches | [
"cs.CL",
"cs.IR"
] | We study the adaptation of Link Grammar Parser to the biomedical sublanguage with a focus on domain terms not found in a general parser lexicon. Using two biomedical corpora, we implement and evaluate three approaches to addressing unknown words: automatic lexicon expansion, the use of morphological clues, and disambig... | {
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cs/0606121 | Performance of Orthogonal Beamforming for SDMA with Limited Feedback | [
"cs.IT",
"math.IT"
] | On the multi-antenna broadcast channel, the spatial degrees of freedom support simultaneous transmission to multiple users. The optimal multiuser transmission, known as dirty paper coding, is not directly realizable. Moreover, close-to-optimal solutions such as Tomlinson-Harashima precoding are sensitive to CSI inaccur... | {
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cs/0606126 | May We Have Your Attention: Analysis of a Selective Attention Task | [
"cs.NE",
"cs.AI"
] | In this paper we present a deeper analysis than has previously been carried out of a selective attention problem, and the evolution of continuous-time recurrent neural networks to solve it. We show that the task has a rich structure, and agents must solve a variety of subproblems to perform well. We consider the relati... | {
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cs/0606128 | Automatic forming lists of semantically related terms based on texts
rating in the corpus with hyperlinks and categories (In Russian) | [
"cs.IR",
"cs.DM"
] | HITS adapted algorithm for synonym search, the program architecture, and the program work evaluation with test examples are presented in the paper. Synarcher program for synonym (and related terms) search in the text corpus of special structure (Wikipedia) was developed. The results of search are presented in the form ... | {
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cs/0607002 | Coding for Parallel Channels: Gallager Bounds for Binary Linear Codes
with Applications to Repeat-Accumulate Codes and Variations | [
"cs.IT",
"math.IT"
] | This paper is focused on the performance analysis of binary linear block codes (or ensembles) whose transmission takes place over independent and memoryless parallel channels. New upper bounds on the maximum-likelihood (ML) decoding error probability are derived. These bounds are applied to various ensembles of turbo-l... | {
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cs/0607003 | Tightened Upper Bounds on the ML Decoding Error Probability of Binary
Linear Block Codes | [
"cs.IT",
"math.IT"
] | The performance of maximum-likelihood (ML) decoded binary linear block codes is addressed via the derivation of tightened upper bounds on their decoding error probability. The upper bounds on the block and bit error probabilities are valid for any memoryless, binary-input and output-symmetric communication channel, and... | {
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cs/0607004 | On the Error Exponents of Some Improved Tangential-Sphere Bounds | [
"cs.IT",
"math.IT"
] | The performance of maximum-likelihood (ML) decoded binary linear block codes over the AWGN channel is addressed via the tangential-sphere bound (TSB) and two of its recent improved versions. The paper is focused on the derivation of the error exponents of these bounds. Although it was exemplified that some recent impro... | {
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cs/0607005 | Belief Conditioning Rules (BCRs) | [
"cs.AI"
] | In this paper we propose a new family of Belief Conditioning Rules (BCRs) for belief revision. These rules are not directly related with the fusion of several sources of evidence but with the revision of a belief assignment available at a given time according to the new truth (i.e. conditioning constraint) one has abou... | {
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cs/0607007 | Theory of sexes by Geodakian as it is advanced by Iskrin | [
"cs.NE",
"cs.GL"
] | In 1960s V.Geodakian proposed a theory that explains sexes as a mechanism for evolutionary adaptation of the species to changing environmental conditions. In 2001 V.Iskrin refined and augmented the concepts of Geodakian and gave a new and interesting explanation to several phenomena which involve sex, and sex ratio, in... | {
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cs/0607010 | ITs, a structure sensitive information theory | [
"cs.IT",
"math.IT"
] | Broadly speaking Information theory (IT) assumes no structure of the underlying states. But what about contexts where states do have a clear structure - how should IT cope with such situations? And if such coping is at all possible then - how should structure be expressed so that it can be coped with? A possible answer... | {
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cs/0607012 | A Flexible Structured-based Representation for XML Document Mining | [
"cs.IR"
] | This paper reports on the INRIA group's approach to XML mining while participating in the INEX XML Mining track 2005. We use a flexible representation of XML documents that allows taking into account the structure only or both the structure and content. Our approach consists of representing XML documents by a set of th... | {
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cs/0607013 | Database Querying under Changing Preferences | [
"cs.DB",
"cs.AI"
] | We present here a formal foundation for an iterative and incremental approach to constructing and evaluating preference queries. Our main focus is on query modification: a query transformation approach which works by revising the preference relation in the query. We provide a detailed analysis of the cases where the or... | {
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cs/0607014 | Strong Consistency of the Good-Turing Estimator | [
"cs.IT",
"math.IT"
] | We consider the problem of estimating the total probability of all symbols that appear with a given frequency in a string of i.i.d. random variables with unknown distribution. We focus on the regime in which the block length is large yet no symbol appears frequently in the string. This is accomplished by allowing the d... | {
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cs/0607015 | The uncovering of hidden structures by Latent Semantic Analysis | [
"cs.IR"
] | Latent Semantic Analysis (LSA) is a well known method for information retrieval. It has also been applied as a model of cognitive processing and word-meaning acquisition. This dual importance of LSA derives from its capacity to modulate the meaning of words by contexts, dealing successfully with polysemy and synonymy. ... | {
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cs/0607016 | An Analysis of Arithmetic Constraints on Integer Intervals | [
"cs.AI",
"cs.PL"
] | Arithmetic constraints on integer intervals are supported in many constraint programming systems. We study here a number of approaches to implement constraint propagation for these constraints. To describe them we introduce integer interval arithmetic. Each approach is explained using appropriate proof rules that reduc... | {
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cs/0607017 | Performance of STBC MC-CDMA systems over outdoor realistic MIMO channels | [
"cs.IT",
"math.IT"
] | The paper deals with orthogonal space-time block coded MC-CDMA systems in outdoor realistic downlink scenarios with up to two transmit and receive antennas. Assuming no channel state information at the transmitter, we compare several linear single-user detection and spreading schemes, with or without channel coding, ac... | {
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cs/0607018 | Feynman Checkerboard as a Model of Discrete Space-Time | [
"cs.CE"
] | In 1965, Feynman wrote of using a lattice containing one dimension of space and one dimension of time to derive aspects of quantum mechanics. Instead of summing the behavior of all possible paths as he did, this paper will consider the motion of single particles within this discrete Space-Time lattice, sometimes called... | {
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cs/0607019 | Modelling the Probability Density of Markov Sources | [
"cs.NE"
] | This paper introduces an objective function that seeks to minimise the average total number of bits required to encode the joint state of all of the layers of a Markov source. This type of encoder may be applied to the problem of optimising the bottom-up (recognition model) and top-down (generative model) connections i... | {
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cs/0607020 | Iterative Decoding Performance Bounds for LDPC Codes on Noisy Channels | [
"cs.IT",
"math.IT"
] | The asymptotic iterative decoding performances of low-density parity-check (LDPC) codes using min-sum (MS) and sum-product (SP) decoding algorithms on memoryless binary-input output-symmetric (MBIOS) channels are analyzed in this paper. For MS decoding, the analysis is done by upper bounding the bit error probability o... | {
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cs/0607021 | Slepian-Wolf Code Design via Source-Channel Correspondence | [
"cs.IT",
"math.IT"
] | We consider Slepian-Wolf code design based on LDPC (low-density parity-check) coset codes for memoryless source-side information pairs. A density evolution formula, equipped with a concentration theorem, is derived for Slepian- Wolf coding based on LDPC coset codes. As a consequence, an intimate connection between Slep... | {
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cs/0607024 | Results on Parity-Check Matrices with Optimal Stopping and/or Dead-End
Set Enumerators | [
"cs.IT",
"math.IT"
] | The performance of iterative decoding techniques for linear block codes correcting erasures depends very much on the sizes of the stopping sets associated with the underlying Tanner graph, or, equivalently, the parity-check matrix representing the code. In this paper, we introduce the notion of dead-end sets to explici... | {
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cs/0607027 | A general computation rule for lossy summaries/messages with examples
from equalization | [
"cs.IT",
"math.IT"
] | Elaborating on prior work by Minka, we formulate a general computation rule for lossy messages. An important special case (with many applications in communications) is the conversion of "soft-bit" messages to Gaussian messages. By this method, the performance of a Kalman equalizer is improved, both for uncoded and code... | {
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cs/0607029 | A Coding Theorem Characterizing Renyi's Entropy through
Variable-to-Fixed Length Codes | [
"cs.IT",
"math.IT"
] | This paper has been withdrawn | {
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cs/0607030 | Towards a General Theory of Simultaneous Diophantine Approximation of
Formal Power Series: Multidimensional Linear Complexity | [
"cs.IT",
"math.IT"
] | We model the development of the linear complexity of multisequences by a stochastic infinite state machine, the Battery-Discharge-Model, BDM. The states s in S of the BDM have asymptotic probabilities or mass Pr(s)=1/(P(q,M) q^K(s)), where K(s) in N_0 is the class of the state s, and P(q,M)=\sum_(K in\N0) P_M(K)q^(-K)=... | {
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cs/0607037 | The Minimal Cost Algorithm for Off-Line Diagnosability of Discrete Event
Systems | [
"cs.AI",
"cs.CC"
] | The failure diagnosis for {\it discrete event systems} (DESs) has been given considerable attention in recent years. Both on-line and off-line diagnostics in the framework of DESs was first considered by Lin Feng in 1994, and particularly an algorithm for diagnosability of DESs was presented. Motivated by some existing... | {
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cs/0607039 | Set-Theoretic Preliminaries for Computer Scientists | [
"cs.DM",
"cs.DB"
] | The basics of set theory are usually copied, directly or indirectly, by computer scientists from introductions to mathematical texts. Often mathematicians are content with special cases when the general case is of no mathematical interest. But sometimes what is of no mathematical interest is of great practical interest... | {
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cs/0607042 | Towards a classical proof of exponential lower bound for 2-probe smooth
codes | [
"cs.CR",
"cs.IT",
"math.IT"
] | Let C: {0,1}^n -> {0,1}^m be a code encoding an n-bit string into an m-bit string. Such a code is called a (q, c, e) smooth code if there exists a decoding algorithm which while decoding any bit of the input, makes at most q probes on the code word and the probability that it looks at any location is at most c/m. The e... | {
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cs/0607043 | Analysis of CDMA systems that are characterized by eigenvalue spectrum | [
"cs.IT",
"cond-mat.dis-nn",
"math.IT"
] | An approach by which to analyze the performance of the code division multiple access (CDMA) scheme, which is a core technology used in modern wireless communication systems, is provided. The approach characterizes the objective system by the eigenvalue spectrum of a cross-correlation matrix composed of signature sequen... | {
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cs/0607047 | PAC Classification based on PAC Estimates of Label Class Distributions | [
"cs.LG"
] | A standard approach in pattern classification is to estimate the distributions of the label classes, and then to apply the Bayes classifier to the estimates of the distributions in order to classify unlabeled examples. As one might expect, the better our estimates of the label class distributions, the better the result... | {
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cs/0607048 | Evaluation de Techniques de Traitement des Refus\'{e}s pour l'Octroi de
Cr\'{e}dit | [
"cs.NE",
"math.ST",
"stat.TH"
] | We present the problem of "Reject Inference" for credit acceptance. Because of the current legal framework (Basel II), credit institutions need to industrialize their processes for credit acceptance, including Reject Inference. We present here a methodology to compare various techniques of Reject Inference and show tha... | {
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cs/0607051 | Raisonner avec des diagrammes : perspectives cognitives et
computationnelles | [
"cs.CL"
] | Diagrammatic, analogical or iconic representations are often contrasted with linguistic or logical representations, in which the shape of the symbols is arbitrary. The aim of this paper is to make a case for the usefulness of diagrams in inferential knowledge representation systems. Although commonly used, diagrams hav... | {
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cs/0607052 | Dealing with Metonymic Readings of Named Entities | [
"cs.AI",
"cs.CL"
] | The aim of this paper is to propose a method for tagging named entities (NE), using natural language processing techniques. Beyond their literal meaning, named entities are frequently subject to metonymy. We show the limits of current NE type hierarchies and detail a new proposal aiming at dynamically capturing the sem... | {
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cs/0607053 | Linguistically Grounded Models of Language Change | [
"cs.AI",
"cs.CL"
] | Questions related to the evolution of language have recently known an impressive increase of interest (Briscoe, 2002). This short paper aims at questioning the scientific status of these models and their relations to attested data. We show that one cannot directly model non-linguistic factors (exogenous factors) even i... | {
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cs/0607056 | Reasoning with Intervals on Granules | [
"cs.AI",
"cs.DM"
] | The formalizations of periods of time inside a linear model of Time are usually based on the notion of intervals, that may contain or may not their endpoints. This is not enought when the periods are written in terms of coarse granularities with respect to the event taken into account. For instance, how to express the ... | {
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cs/0607060 | Circle Formation of Weak Mobile Robots | [
"cs.RO"
] | In this paper we prove the conjecture of D\'{e}fago & Konagaya. Furthermore, we describe a deterministic protocol for forming a regular n-gon in finite time. | {
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cs/0607062 | Get out the vote: Determining support or opposition from Congressional
floor-debate transcripts | [
"cs.CL",
"cs.SI",
"physics.soc-ph"
] | We investigate whether one can determine from the transcripts of U.S. Congressional floor debates whether the speeches represent support of or opposition to proposed legislation. To address this problem, we exploit the fact that these speeches occur as part of a discussion; this allows us to use sources of information ... | {
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cs/0607064 | How to Find Good Finite-Length Codes: From Art Towards Science | [
"cs.IT",
"math.IT"
] | We explain how to optimize finite-length LDPC codes for transmission over the binary erasure channel. Our approach relies on an analytic approximation of the erasure probability. This is in turn based on a finite-length scaling result to model large scale erasures and a union bound involving minimal stopping sets to ta... | {
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cs/0607065 | Decomposable Theories | [
"cs.LO",
"cs.AI"
] | We present in this paper a general algorithm for solving first-order formulas in particular theories called "decomposable theories". First of all, using special quantifiers, we give a formal characterization of decomposable theories and show some of their properties. Then, we present a general algorithm for solving fir... | {
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cs/0607067 | Competing with stationary prediction strategies | [
"cs.LG"
] | In this paper we introduce the class of stationary prediction strategies and construct a prediction algorithm that asymptotically performs as well as the best continuous stationary strategy. We make mild compactness assumptions but no stochastic assumptions about the environment. In particular, no assumption of station... | {
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cs/0607068 | Computation of the Weight Distribution of CRC Codes | [
"cs.IT",
"math.AC",
"math.IT"
] | In this article, we illustrate an algorithm for the computation of the weight distribution of CRC codes. The recursive structure of CRC codes will give us an iterative way to compute the weight distribution of their dual codes starting from just some ``representative'' words. Thanks to MacWilliams Theorem, the computat... | {
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cs/0607071 | Islands for SAT | [
"cs.AI"
] | In this note we introduce the notion of islands for restricting local search. We show how we can construct islands for CNF SAT problems, and how much search space can be eliminated by restricting search to the island. | {
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cs/0607074 | On Construction of the (24,12,8) Golay Codes | [
"cs.IT",
"math.IT"
] | Two product array codes are used to construct the (24, 12, 8) binary Golay code through the direct sum operation. This construction provides a systematic way to find proper (8, 4, 4) linear block component codes for generating the Golay code, and it generates and extends previously existing methods that use a similar c... | {
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cs/0607075 | On entropy for mixtures of discrete and continuous variables | [
"cs.IT",
"math.IT"
] | Let $X$ be a discrete random variable with support $S$ and $f : S \to S^\prime$ be a bijection. Then it is well-known that the entropy of $X$ is the same as the entropy of $f(X)$. This entropy preservation property has been well-utilized to establish non-trivial properties of discrete stochastic processes, e.g. queuing... | {
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cs/0607076 | Capacity of Cooperative Fusion in the Presence of Byzantine Sensors | [
"cs.IT",
"math.IT"
] | The problem of cooperative fusion in the presence of Byzantine sensors is considered. An information theoretic formulation is used to characterize the Shannon capacity of sensor fusion. It is shown that when less than half of the sensors are Byzantine, the effect of Byzantine attack can be entirely mitigated, and the f... | {
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} |
cs/0607078 | Complex Lattice Reduction Algorithm for Low-Complexity MIMO Detection | [
"cs.DS",
"cs.IT",
"math.IT"
] | Recently, lattice-reduction-aided detectors have been proposed for multiple-input multiple-output (MIMO) systems to give performance with full diversity like maximum likelihood receiver, and yet with complexity similar to linear receivers. However, these lattice-reduction-aided detectors are based on the traditional LL... | {
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} |
cs/0607081 | Syst\`{e}me de repr\'{e}sentation d'aide au besoin dans le domaine
architectural | [
"cs.OH",
"cs.IR"
] | The image is a very important mean of communication in the field of architectural who intervenes in the various phases of the design of a project. It can be regarded as a tool of decision-making aid. The study of our research aims at to see the contribution of the Economic Intelligence in the resolution of a decisional... | {
"Other": 1,
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} |
cs/0607083 | Mathematical Modelling of the Thermal Accumulation in Hot Water Solar
Systems | [
"cs.CE"
] | Mathematical modelling and defining useful recommendations for construction and regimes of exploitation for hot water solar installation with thermal stratification is the main purpose of this work. A special experimental solar module for hot water was build and equipped with sufficient measure apparatus. The main conc... | {
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} |
cs/0607084 | About Norms and Causes | [
"cs.AI"
] | Knowing the norms of a domain is crucial, but there exist no repository of norms. We propose a method to extract them from texts: texts generally do not describe a norm, but rather how a state-of-affairs differs from it. Answers concerning the cause of the state-of-affairs described often reveal the implicit norm. We a... | {
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} |
cs/0607085 | Using Pseudo-Stochastic Rational Languages in Probabilistic Grammatical
Inference | [
"cs.LG"
] | In probabilistic grammatical inference, a usual goal is to infer a good approximation of an unknown distribution P called a stochastic language. The estimate of P stands in some class of probabilistic models such as probabilistic automata (PA). In this paper, we focus on probabilistic models based on multiplicity autom... | {
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} |
cs/0607086 | Representing Knowledge about Norms | [
"cs.AI"
] | Norms are essential to extend inference: inferences based on norms are far richer than those based on logical implications. In the recent decades, much effort has been devoted to reason on a domain, once its norms are represented. How to extract and express those norms has received far less attention. Extraction is dif... | {
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} |
cs/0607088 | Using Answer Set Programming in an Inference-Based approach to Natural
Language Semantics | [
"cs.CL",
"cs.AI"
] | Using Answer Set Programming in an Inference-Based approach to Natural Language Semantics | {
"Other": 0,
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} |
cs/0607089 | Superregular Matrices and the Construction of Convolutional Codes having
a Maximum Distance Profile | [
"cs.IT",
"math.CO",
"math.IT"
] | Superregular matrices are a class of lower triangular Toeplitz matrices that arise in the context of constructing convolutional codes having a maximum distance profile. These matrices are characterized by the property that no submatrix has a zero determinant unless it is trivially zero due to the lower triangular struc... | {
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} |
cs/0607090 | Neural Networks with Complex and Quaternion Inputs | [
"cs.NE"
] | This article investigates Kak neural networks, which can be instantaneously trained, for complex and quaternion inputs. The performance of the basic algorithm has been analyzed and shown how it provides a plausible model of human perception and understanding of images. The motivation for studying quaternion inputs is t... | {
"Other": 0,
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} |
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