Information Theory

Coding Theorems for Discrete Memoryless Systems

Author: Imre Csiszár,János Körner

Publisher: Elsevier

ISBN: 1483281574

Category: Mathematics

Page: 460

View: 1551

Information Theory: Coding Theorems for Discrete Memoryless Systems presents mathematical models that involve independent random variables with finite range. This three-chapter text specifically describes the characteristic phenomena of information theory. Chapter 1 deals with information measures in simple coding problems, with emphasis on some formal properties of Shannon’s information and the non-block source coding. Chapter 2 describes the properties and practical aspects of the two-terminal systems. This chapter also examines the noisy channel coding problem, the computation of channel capacity, and the arbitrarily varying channels. Chapter 3 looks into the theory and practicality of multi-terminal systems. This book is intended primarily for graduate students and research workers in mathematics, electrical engineering, and computer science.

Suchprobleme

Author: Rudolf Ahlswede,Ingo Wegener

Publisher: Springer-Verlag

ISBN: 3322912035

Category: Technology & Engineering

Page: 329

View: 6435

In den vergangenen drei Jahrzehnten findet man sowohl in theo retisch ausgerichteten als auch in anwendungsorientierten Zeit schriften in zunehmendem Maße Beiträge zum Thema "Suchen". Dabei ist auffallend, daß sehr verschiedenartige Probleme als Suchpro bleme klassifiziert werden und daß Forscher der verschiedenen Fach richtungen häufig sehr wenig über Ergebnisse, die in ihnen nicht vertrauten Gebieten erzielt wurden, informiert sind. Mit diesem Buch wird ein Versuch unternommen, das umfangreiche Material so darzustellen, daß dem Leser ein schneller Einstieg in den Fragenkreis und ein möglichst umfassender Uberblick ermöglicht wird. Es war unser Ziel, die wesentlichen Arbeiten auf dem Gebiet nach neuestem Stand zu behandeln, aber wir erheben keinen Anspruch auf Vollständigkeit in irgendeinem Sinne, da schon der Rahmen dieses Buches einem solchen Verlangen nicht gerecht werden kann. Bei einigen Arbeiten, die es an sich verdient hätten, ausführlich dargestellt zu werden, haben wir uns deshalb auf die Angabe ihrer Ergebnisse beschränkt. Der interessierte Forscher wird so in den Stand versetzt, sich seinen Weg durch die Literatur selbst zu bahnen. Das Buch dürfte für den Experten als Nachschlagewerk nütz lich sein. Aber unser Hauptanliegen ist es, jedem Leser mit der Bereit schaft und der Fähigkeit zu abstraktem, formalen Denken einen Zu gang zu den grundlegenden Ideen, Methoden und Resultaten des Ge bietes zu ermöglichen, die noch nicht in Büchern erschienen sind, aber von ihrer Bedeutung her eine weitere Verbreitung verdienen.

Combinatorial Methods and Models

Rudolf Ahlswede’s Lectures on Information Theory 4

Author: Rudolf Ahlswede

Publisher: Springer

ISBN: 3319531395

Category: Mathematics

Page: 385

View: 9185

The fourth volume of Rudolf Ahlswede’s lectures on Information Theory is focused on Combinatorics. Ahlswede was originally motivated to study combinatorial aspects of Information Theory via zero-error codes: in this case the structure of the coding problems usually drastically changes from probabilistic to combinatorial. The best example is Shannon’s zero error capacity, where independent sets in graphs have to be examined. The extension to multiple access channels leads to the Zarankiewicz problem. A code can be regarded combinatorially as a hypergraph; and many coding theorems can be obtained by appropriate colourings or coverings of the underlying hypergraphs. Several such colouring and covering techniques and their applications are introduced in this book. Furthermore, codes produced by permutations and one of Ahlswede’s favourite research fields -- extremal problems in Combinatorics -- are presented. Whereas the first part of the book concentrates on combinatorial methods in order to analyse classical codes as prefix codes or codes in the Hamming metric, the second is devoted to combinatorial models in Information Theory. Here the code concept already relies on a rather combinatorial structure, as in several concrete models of multiple access channels or more refined distortions. An analytical tool coming into play, especially during the analysis of perfect codes, is the use of orthogonal polynomials. Classical information processing concerns the main tasks of gaining knowledge and the storage, transmission and hiding of data. The first task is the prime goal of Statistics. For transmission and hiding data, Shannon developed an impressive mathematical theory called Information Theory, which he based on probabilistic models. The theory largely involves the concept of codes with small error probabilities in spite of noise in the transmission, which is modeled by channels. The lectures presented in this work are suitable for graduate students in Mathematics, and also for those working in Theoretical Computer Science, Physics, and Electrical Engineering with a background in basic Mathematics. The lectures can be used as the basis for courses or to supplement courses in many ways. Ph.D. students will also find research problems, often with conjectures, that offer potential subjects for a thesis. More advanced researchers may find questions which form the basis of entire research programs.

Encyclopaedia of Mathematics

Volume 3 Heaps and Semi-Heaps — Moments, Method of (in Probability Theory)

Author: M. Hazewinkel

Publisher: Springer

ISBN: 1489937935

Category: Mathematics

Page: 950

View: 1335

Encyclopaedia of Mathematics

Author: Michiel Hazewinkel

Publisher: Springer Science & Business Media

ISBN: 9400959885

Category: Mathematics

Page: 534

View: 5649

This ENCYCLOPAEDIA OF MATHEMATICS aims to be a reference work for all parts of mathe matics. It is a translation with updates and editorial comments of the Soviet Mathematical Encyclopaedia published by 'Soviet Encyclopaedia Publishing House' in five volumes in 1977-1985. The annotated translation consists of ten volumes including a special index volume. There are three kinds of articles in this ENCYCLOPAEDIA. First of all there are survey-type articles dealing with the various main directions in mathematics (where a rather fine subdivi sion has been used). The main requirement for these articles has been that they should give a reasonably complete up-to-date account of the current state of affairs in these areas and that they should be maximally accessible. On the whole, these articles should be understandable to mathematics students in their first specialization years, to graduates from other mathematical areas and, depending on the specific subject, to specialists in other domains of science, en gineers and teachers of mathematics. These articles treat their material at a fairly general level and aim to give an idea of the kind of problems, techniques and concepts involved in the area in question. They also contain background and motivation rather than precise statements of precise theorems with detailed definitions and technical details on how to carry out proofs and constructions. The second kind of article, of medium length, contains more detailed concrete problems, results and techniques.

Inequality Theory and Applications

Author: Yeol Je Cho,Jong Kyu Kim,Sever S. Dragomir

Publisher: Nova Publishers

ISBN: 9781594548758

Category: Mathematics

Page: 189

View: 4344

Intends to introduce and exchange topics on the areas of inequality theory and their applications dealing in pure and applied mathematics.

Mathematica

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Mathematics

Page: N.A

View: 686

Probabilistic information theory

discrete and memoryless models

Author: Frederick Jelínek

Publisher: N.A

ISBN: N.A

Category: Information theory

Page: 609

View: 1988

Grundbegriffe der Wahrscheinlichkeitsrechnung

Author: A. Kolomogoroff

Publisher: Springer-Verlag

ISBN: 3642498884

Category: Mathematics

Page: 62

View: 3896

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Information Theory

Author: Robert B. Ash

Publisher: Courier Corporation

ISBN: 0486141454

Category: Technology & Engineering

Page: 352

View: 3470

DIVAnalysis of channel models and proof of coding theorems; study of specific coding systems; and study of statistical properties of information sources. Sixty problems, with solutions. Advanced undergraduate to graduate level. /div