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Wiener, N.: ¬The human use of human beings : cybernetics and society (1950)
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- 8. 7.2000 18:17:22
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MacKay, D.M.: Quantal aspects of information (1950)
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Bar-Hillel, Y.; Carnap, R.: ¬An outline of a theory of semantic information (1953)
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Mooers, C.N.: ¬A mathematical theory of language symbols in retrieval (1959)
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- Proceedings of the International Conference on Scientific Information
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Luhn, H.P.: ¬A statistical approach to the mechanical encoding and searching of literary information (1957)
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Merryman, J.H.: Tactics and terminology in information retrieval : a summary of recent work (1958)
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Foskett, D.J.: ¬The construction of a faceted classification for a special subject (1959)
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- Proc. Int. Conf. on Scientific Information, Washington
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Miller, G.A.: ¬The magical number, seven plus or minus two : some limits on our capacity for processing information (1956)
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Cole, P.F.: ¬The analysis of reference question records as a guide to the information requirements of scientists (1958)
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Ranganathan, S.R.: Library classification as a discipline (1957)
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- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House,Dorking, England, 13.-17.5.1957
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Mills, J.: Classification of a subject field (1957)
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- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957
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Bar-Hillel, Y.; Carnap, R.: ¬An outline of a theory of semantic information (1952)
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- Abstract
- In distinction to current Theory of Communication which treats amount of information as a measure of the statistical rarity of a message, a Theory of Semantic Information is outlined, in which the concept of information carried by a sentence within a given language system is treated as synonymous with the content of this sentence, normalized in a certain way, and the concept of amount of semantic information is explicated by various measures of this content, all based on logical probability functions ranging over the contents. Absolute and relative measures are distinguished, so are D-functions suitable for contexts where deductive reasoning alone is relevant and I-functions suitable for contexts where inductive reasoning is adequate. Of the two major types of amount of information investigated, the one, cont, is additive with respect to sentences whose contents are exclusive, the other, inf, with respect to sentences which are inductively independent. The latter turns out to be formally analogous to the customary information measure function. Various estimate functions of amount of information are investigated leading to generalized semantic correlates of concepts and theorems of current Communication Theory. A concept of semantic noise is tentatively defined, so are efficiency and redundancy of the conceptual framework of a language system. It is suggested that semantic information is a concept more readily applicable to psychological and other investigations than its communicational counterpart.
- Theme
- Information
- Type
- a
-
Taube, M.: Storage and retrieval of information by means of the association of ideas (1955)
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Menzel, H.: Planned and unplanned scientific communication (1959)
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- Source
- International Conference on Scientific Information: Proceedings
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Bristol, R.P.: Control of subject information : can it be mechanized? (1950)
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Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957 (1957)
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- Content
- Enthält die Beiträge: RANGANATHAN, S.R.: Library classification as a discipline; SHERA, J.H.: Pattern, structure, and conceptualization in classification for information retrieval; MILLS, J.: Classification of a subject field; VICKERY, B.C.: Relations between subject fields: problems of constructing a general classification; COATES, E.J.: Notation in classification; FARRADANE, J.: Classification and mechanical selection; BALL, N.T.: Contributions of classification to science; GROLIER, E. de: Concluding survey; FOSKETT, D.J.: Occupational safety and health documents classification scheme; CRG: The need for a faceted classification as the basis of all methods of information retrieval (Memorandum of the Classification Research Group)
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Shera, J.H.: Pattern, structure, and conceptualization in classification for information retrieval (1957)
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- Source
- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957
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Joyce, T.; Needham, R.M.: ¬The thesaurus approach to information retrieval (1958)
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- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgang Kaufmann 1997. S.15-20.
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Vickery, B.C.: Relations between subject fields : problems of constructing a general classification (1957)
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- Source
- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957
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Farradane, J.: Classification and mechanical selection (1957)
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- Source
- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957
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