John Kieffer

John Cronan Kieffer (born 1945) is an American mathematician best known for his work in information theory, ergodic theory, and Stationary process, stationary process theory.

Education

Kieffer received his elementary and high school education in St Louis, Missouri, a bachelor's degree in applied mathematics in 1967 from Missouri University of Science and Technology, University of Missouri Rolla, and a master's degree in mathematics in 1968 from University of Illinois Urbana-Champaign.
In 1970, under Robert B. Ash, he received the Ph.D. degree in mathematics
from University of Illinois Urbana-Champaign with thesis ''A Generalization of the Shannon-McMillan Theorem and Its Application to Information Theory''.

Work history

In 1970 Kieffer became an assistant professor at Missouri University of Science and Technology, where he eventually became a full professor.
In 1986 he became a full professor at University of Minnesota, University of Minnesota Twin Cities. Kieffer held visiting appointments at
Stanford University, University of Illinois Urbana-Champaign, ETH Zurich, ETH Zürich, and University of Arizona.
He has been the supervisor for 6 Ph.D. theses.

Professional activities

During the 1980's, Kieffer was Associate Editor of the IEEE Transactions on Information Theory.
In 2004, Kieffer was co-editor of a special issue of the IEEE Transactions on Information Theory entitled "Problems on Sequences: Information Theory and Computer Science Interface".
He is a Life Fellow of the Institute of Electrical and Electronics Engineers "for contributions to information theory, particularly coding theory and quantization".

Key works

1. Key works on Grammar-based code, grammar-based coding:
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2. Key works on Coding theory, channel coding:
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3. Key works on Quantization (signal processing), quantization:
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4. Key works on ergodic theory:
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5. Key works on Stationary process, stationary process theory:
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Inventions

*Multilevel Pattern Matching Grammar-Based Code
*SEQUENTIAL Grammar-Based Code
*Longest-Match Grammar-Based Code

Impact

Kieffer has over 70 journal publications in the mathematical sciences.
His research work has attracted over 3000 Google Scholar citations, over 500 MathSciNet citations
and over 1000 IEEE Xplore citations. Some of these works have been cited as prior art
on various United States patents.
In 1998, the IEEE Transactions on Information Theory published a special issue consisting of articles that survey research in information theory during 1948-1998. Two
of these articles include discussions of Kieffer's work, namely, the article ''Lossy Source Coding'' by Toby Berger and Jerry Gibson, and the article ''Quantization'' by
Robert M. Gray and David Neuhoff. In addition, the textbook ''Transmitting and Gaining Data'' by Rudolf Ahlswede presents several aspects of Kieffer's work.

References

External links

Robert B. Ash obituary

{{DEFAULTSORT:Kieffer, John
American information theorists
University of Illinois Urbana-Champaign alumni
Fellow Members of the IEEE
University of Minnesota faculty
Living people
Missouri University of Science and Technology alumni
Missouri University of Science and Technology faculty
1945 births