-
Borko, H.: Determining user requirements for an information storage and retrieval system : a systems approach (1962)
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- Source
- Information systems workshop
-
Swets, J.A.: Information retrieval systems (1963)
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-
Swets, J.A.: Effectiveness of information retrieval systems (1969)
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-
Goffman, W.; Newill, V.A.: ¬A methodology for test and evaluation of information retrieval systems (1966/67)
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- Source
- Information storage and retrieval. 3(1966/67), S.19-26
-
Rees, A.M.: Evaluation of information systems and services (1967)
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- Source
- Annual review of information science and technology. 2(1967), S.63-86
-
Borko, H.: Design of information systems and services (1967)
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- Source
- Annual review of information science and technology. 2(1967), S.35-62
-
King, D.W.: Design and evaluation of information systems (1968)
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- Source
- Annual review of information science and technology. 3(1968), S.61-104
-
Katter, R.V.: Design and evaluation of information systems (1969)
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- Source
- Annual review of information science and technology. 4(1969), S.31-70
-
Senko, M.E.: File organization and management information systems (1969)
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- Source
- Annual review of information science and technology. 4(1969), S.111-144
-
Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960)
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- Footnote
- Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
-
Bourne, C.P.: Evaluation of indexing systems (1966)
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- Source
- Annual review of information science and technology. 1(1966), S.171-190
-
Coates, E.J.: CRG proposals for a new general classification (1969)
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- Pages
- S.19-22
- Source
- Classification and information control. Papers representing the work of the Classification Research Group during 1960-1968
-
Ranganathan, S.R.: ¬The Colon Classification (1965)
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- Series
- Rutgers series on systems for the intellectual organization of information;4
-
Vickery, B.C.: Faceted classification schemes (1966)
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- Series
- Rutgers series on systems for the intellectual organization of information; 5
-
Stevens, N.D.: ¬A comparative study of three systems of information retrieval (1961)
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-
Gordon, T.J.; Helmer-Hirschberg, O.: Report on a long-range forecasting study (1964)
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- Abstract
- Description of an experimental trend-predicting exercise covering a time period as far as 50 years into the future. The Delphi technique is used in soliciting the opinions of experts in six areas: scientific breakthroughs, population growth, automation, space progress, probability and prevention of war, and future weapon systems. Possible objections to the approach are also discussed.
- Date
- 22. 6.2018 13:24:08
22. 6.2018 13:54:52
-
Mooers, C.: ¬The indexing language of an information retrieval system (1963)
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- Source
- Information retrieval today: papers presented at an Institute conducted by the Library School and the Cetre for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by. Wesley Simonton
-
International Symposium on Relational Factors in Classification, Univ. of Maryland, 8.-11.6.1966. Proceedings (1967)
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- Content
- Enthält die Beiträge: PERREAULT, J.M. On the articulation of surrogates: an attempt at an epistemological foundation; RICHMOND, P.A.: Critique; CECCATO, S.: Concepts for a new systematics; BREGZIS, R., D.E. WALKER: Critique; SOERGEL, D.: Some remarks on information languages, their analysis and comparison; ATHERTON, P., FAIRTHORNE, R.A.: Critique; FARRADANE, J.: Concept organization for information retrieval; ATHERTON, P., H. BORKO: Critique; LÉVY, F.: On the relative nature of relational factors in classifications; RICHMOND, P.A., H. BORKO: Critique; NEWMAN, S.M.: An operative information retrieval system based on relational factors; LANCASTER, F.W., D.E. WALKER: Critique; PAGèS, R.: Relational aspects of conceptualization in message analysis; WILLIAMS, T.M., R. BREGZIS: Critique; DALE, A.G.: Indexing and classification for interactive retrieval systems; WILLIAMS, T.M., F.W. LANCASTER: Critique; GROLIER, E. de: Synoptic critique; RANGANATHAN, S.R.: Hidden roots of classification
- Source
- Information storage and retrieval. 3(1967), no.4
-
Good, I.J.: ¬The decision-theory approach to the evaluation of information-retrieval systems (1967)
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- Abstract
- It is argued that the evaluation of information-retrieval systems should ultimately be based on the principle of rationality, the maximization of expected utility. In full generality this would involve an estimation of both the cost and value of a system, but the emphasis in this paper is on the problem of value, in terms of which the effiency of the system could be defined. One implication of the discussion is that it is not legitimate to superimpose the 2x2 contingency tables that refer to select/discarded and relevant/irrelevant, correspondending to each request,but it might be all right to superimpose them after applying a monotonic function to the entries. In particular, it is questionable whether a useful statistic is the ratio of the total number of relevant selected documents to the total number of relevant ones, over a sample of requests.
- Source
- Information storage review. 3(1967), S.31-34
-
Rübesame, O.: Probleme des geographischen Schlüssels (1963)
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- Date
- 17. 1.1999 13:22:22
