منابع مشابه
Fifty Years of Shannon Theory
A brief chronicle is given of the historical development of the central problems in the theory of fundamental limits of data compression and reliable communication.
متن کاملFifty Years of Shannon Theory - Information Theory, IEEE Transactions on
A brief chronicle is given of the historical development of the central problems in the theory of fundamental limits of data compression and reliable communication.
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The subject of homotopy theory may be said to have begun in 1930 with the discovery of the Hopf map. Since I began to work under Norman Steenrod as a graduate student at Chicago in 1939 and received my Ph.D. in 1941, I have been active in the field for all but the first ten years of its existence. Thus the present account of the development of the subject is based, to a large extent, on my own ...
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We highlight progress in the study of eigenvalue perturbation theory, especially problems connected to quantum mechanics. Six models are discussed in detail: isoelectronic atoms, autoionizing states, the anharmonic oscillator, double wells, and the Zeeman and Stark effects. Berry's phase is also discussed
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In 1948 Shannon developed fundamental limits on the efficiency of communication over noisy channels. The coding theorem asserts that there are block codes with code rates arbitrarily close to channel capacity and probabilities of error arbitrarily close to zero. Fifty years later, codes for the Gaussian channel have been discovered that come close to these fundamental limits. There is now a sub...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 1998
ISSN: 0018-9448
DOI: 10.1109/18.720531