Category: Information Theory

By Claude Berrou

Cet ouvrage est consacr? ? l'une des fonctions essentielles des syst?mes de t?l?communications modernes : le codage de canal ou codage correcteur d'erreurs. ? l. a. crois?e de l. a. th?orie de l'information, des math?matiques et de l'?lectronique, le codage de canal a connu de nombreux d?veloppements depuis les travaux fondateurs de Claude Shannon. Du easy code de Hamming (1950) aux r?cents turbocodes (1993) en passant par les codes LDPC (1962), le codage de canal a consid?rablement ?volu? et a int?gr? des recommendations de plus en plus sophistiqu?s, en particulier le traitement probabiliste de l'information.

Codes alg?briques, codes convolutifs et codes concat?n?s d?cod?s it?rativement font los angeles mati?re principale de l'ouvrage qui comporte ?galement une pr?sentation des modulations num?riques, auxquelles le codage de canal est intimement associ? pour former le c?ur de l. a. couche body des syst?mes de t?l?communications. Les elements th?oriques les plus importants sont pr?sent?s, l. a. building des codes est d?taill?e et justifi?e. Les algorithmes de d?codage sont d?velopp?s et, dans l. a. mesure du attainable, accompagn?s de r?sultats de simulation, caract?ristiques de leur pouvoir de correction et de leurs applications.

Les auteurs sont des enseignants-chercheurs reconnus pour leur services dans le domaine des algorithmes de codage et de d?codage ainsi que des circuits ?lectroniques associ?s. Codes et Turbocodes a ?t? pens? pour ?tre ? los angeles fois un ouvrage de d?couverte du domaine, une resource pr?cieuse d'informations sur les nombreuses strategies imagin?es depuis le milieu du vingti?me si?cle, et une ouverture vers des probl?mes non encore compl?tement r?solus.

By John R. Pierce

Covers encoding and binary digits, entropy, language and that means, effective encoding and the noisy channel, and explores ways that info conception pertains to physics, cybernetics, psychology, and paintings. "Uncommonly good...the so much pleasurable dialogue to be found." - medical American. 1980 version.

By Mark Warschauer

A lot of the dialogue approximately new applied sciences and social equality has excited by the oversimplified suggestion of a "digital divide." expertise and Social Inclusion strikes past the constrained view of haves and have-nots to investigate the several types of entry to info and communique applied sciences. Drawing on thought from political technology, economics, sociology, psychology, communications, schooling, and linguistics, the publication examines the ways that differing entry to know-how contributes to social and fiscal stratification or inclusion. The e-book takes an international standpoint, proposing case experiences from constructed and constructing international locations, together with Brazil, China, Egypt, India, and the us. A primary premise is that, in trendy society, the facility to entry, adapt, and create wisdom utilizing info and communique applied sciences is important to social inclusion. This concentrate on social inclusion shifts the dialogue of the "digital divide" from gaps to be triumph over via delivering gear to social improvement demanding situations to be addressed throughout the potent integration of expertise into groups, associations, and societies. what's most vital isn't really quite a bit the actual availability of pcs and the web yet really people's skill to use these applied sciences to have interaction in significant social practices.

By Norman Abramson

Details conception, info and assets, a few homes of Codes, Coding details resources, Channels and Mutual details, trustworthy Messages via Unreliable Channels, word list of Symbols and Expressions.

By Donald W. Pfaff

Arousal is key to all cognition. it truly is intuitively seen, totally helpful, yet what precisely is it?

In Brain Arousal and data Theory, Donald Pfaff offers a bold standpoint in this long-standing puzzle. Pfaff argues that, underneath our psychological features and emotional inclinations, a primitive neuronal method governs arousal. applying the easy yet strong framework of knowledge thought, Pfaff revolutionizes our figuring out of arousal platforms within the brain.

Starting with a evaluate of the neuroanatomical, neurophysiological, and neurochemical parts of arousal, Pfaff asks us to examine the gene networks and neural pathways underlying the brain's arousal structures a lot as a layout engineer could consider info platforms. this permits Pfaff to postulate that there's a bilaterally symmetric, bipolar procedure common between mammals that readies the animal or the person to answer stimuli, start up voluntary locomotion, and react to emotional demanding situations. utilizing his speculation to heightened states of arousal--sex and fear--Pfaff exhibits us how his concept opens new medical methods to knowing the constitution of mind arousal.

A significant synthesis of disparate info through a preeminent neuroscientist, Brain Arousal and knowledge Theory demanding situations present considering cognition and behaviour. no matter if you join Pfaff's conception or now not, this publication will stimulate debate in regards to the nature of arousal itself.

By L. Mirsky

''Transversal conception, the learn of combinatorial questions of which Philip Hall's classical theorem on 'distinct representatives' is the fount and foundation, has just recently emerged as a coherent physique of data. The pages that keep on with symbolize a primary try and offer a codification of this new topic and, particularly, to put it firmly within the context of the idea of summary independence. i've got sought to make the exposition leisurely, systematic, and as approximately self-contained as attainable; yet because the size of the e-book needed to be stored inside of traditional bounds, it's been essential to exclude sure subject matters although they impinge on my critical topic. therefore I say not anything concerning the topic of 'flows in networks' initiated via Ford and Fulkerson; I go in silence over the fascinating chances of constructing combinatorial theorems by way of the tactic of linear programming; and that i refer basically sometimes to the speculation of graphs. i'm hoping that therefore my presentation has received in care and readability what it has unquestionably misplaced in breadth of treatment.The account provided this is meant essentially for 3 periods of readers. It goals to function an in depth advent to the equipment of transversal idea for postgraduate scholars who desire to focus on combinatorial arithmetic. it is going to, possibly, offer a handy paintings of reference for specialists within the box. and eventually, it's a repository of combinatorial effects which these engaged within the program of mathematical recommendations to sensible difficulties might locate get together to invoke...'' L.Mirsky

By Charles Small

Textual content for a one-semester direction on the complicated undergraduate/beginning graduate point, or reference for algebraists and mathematicians attracted to algebra, algebraic geometry, and quantity thought, examines counting or estimating numbers of strategies of equations in finite fields focusing on to

By Dan O'Sullivan

In the course of its short life Wikipedia has proved astonishingly profitable. Its 2.8 million articles (in English by myself) can be found freely to all with entry to the net. The online encyclopaedia will be noticeable because the twenty first century's model of prior ancient makes an attempt to collect the world's wisdom into one position. This detailed booklet first bargains an outline of a few of those past makes an attempt. the writer discusses 5 ancient teams or groups of perform, all of which had related targets to Wikipedia to make an impression at the society in their time throughout the dissemination of knowledge. the second one half is an research of Wikipedia itself, and the 3rd half includes feedback approximately how you can strategy it, tips on how to give a contribution to it and what one could achieve from it. Writing in an obtainable sort the writer takes a socio-historical procedure and argues that by means of groups of perform some time past we will be able to come to appreciate the unconventional, even political, nature of Wikipedia. The e-book may have a wide entice someone drawn to the improvement of this precise undertaking, together with details administration pros but additionally historians, sociologists, educators and scholars.

By Peter S. Maybeck

From Contents: creation; Deterministic process versions; likelihood thought and Static types; Stochastic strategies and Linear Dynamic approach versions; optimum Filtering and Linear method types; layout and function research of Kalman Filters; sq. Root Filtering. (Description by way of http-mart)

By Gibson

This middle IEEE Press vintage Reissue is the single ebook committed exclusively to nonparametric detection - the foremost to protecting reliable functionality over a variety of stipulations. all through, the authors hire the Neyman-Pearson method, famous because the excellent for detection in communications, radar, sonar, acoustics, and geophysics.