文档介绍：Giovanni Sommaruga (Ed.)
Formal Theories
of Information
From Shannon to Semantic Information Theory
and General Concepts of Information
13
Volume Editor
Giovanni Sommaruga
University of Fribourg
CH-1700 Fribourg, Switzerland
E-mail: giovanni.******@
Library of Congress Control Number: Applied for
CR Subject Classification (1998): , ,
LNCS Sublibrary: SL 1 – puter Science and General Issues
ISSN 0302-9743
ISBN-10 3-642-00658-2 Springer Berlin Heidelberg New York
ISBN-13 978-3-642-00658-6 Springer Berlin Heidelberg New York
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Preface
It monly assumed puters process information. But what is infor-
mation? In a technical, important, but nevertheless rather narrow sense, Shan-
non’s information theory gives a first answer to this question. This theory focuses
on measuring the information content of a message. Essentially this measure is
the reduction of the uncertainty obtained by receiving a message. The uncer-
tainty of a situation of ignorance in turn is measured by entropy. This theory
has had an immense impact on the technology of information storage, -
pression, information transmission and coding and still is a very acti