-
Luhn, H.P.: Keyword-in-context index for technical literature (1960)
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-
Melton, J.S.: ¬A use for the techniques of structural linguistics in documentation research (1965)
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- Abstract
- Index language (the system of symbols for representing subject content after analysis) is considered as a separate component and a variable in an information retrieval system. It is suggested that for purposes of testing, comparing and evaluating index language, the techniques of structural linguistics may provide a descriptive methodology by which all such languages (hierarchical and faceted classification, analytico-synthetic indexing, traditional subject indexing, indexes and classifications based on automatic text analysis, etc.) could be described in term of a linguistic model, and compared on a common basis
-
Maron, M.E.; Kuhns, I.L.: On relevance, probabilistic indexing and information retrieval (1960)
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- Abstract
- Reports on a novel technique for literature indexing and searching in a mechanized library system. The notion of relevance is taken as the key concept in the theory of information retrieval and a comparative concept of relevance is explicated in terms of the theory of probability. The resulting technique called 'Probabilistic indexing' allows a computing machine, given a request for information, to make a statistical inference and derive a number (called the 'relevance number') for each document, which is a measure of the probability that the document will satisfy the given request. The result of a search is an ordered list of those documents which satisfy the request ranked according to their probable relevance. The paper goes on to show that whereas in a conventional library system the cross-referencing ('see' and 'see also') is based soley on the 'semantic closeness' between index terms, statistical measures of closeness between index terms can be defined and computed. Thus, given an arbitrary request consisting of one (or many) index term(s), a machine can eleborate on it to increase the probability of selecting relevant documents that would not otherwise have been selected. Finally, the paper suggest an interpretation of the whole library problem as one where the request is considered as a clue on the basis of which the library system makes a concatenated statistical inference in order to provide as an output an ordered list of those documents which most probably satisfy the information needs of the user
-
Malin, M.V.: ¬The Science Citation Index : a new concept in indexing (1968)
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- Object
- Science Citation Index
-
Lancaster, F.W.; Mills, J.: Testing indexes and index language devices : the ASLIB Cranfield project (1964)
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-
Fischer, M.: ¬The KWIC-Index concept : a retrospective view (1966)
0.03
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-
Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966)
0.03
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- Abstract
- A study of the number of irrelevant documents retrieved in a co-ordinate indexing system that does not employ eitherr roles or links. These tests were based on one hundred actual inquiries received in the library and therefore an evaluation of recall efficiency is not included. Over half the enquiries produced no noise, but the mean average percentage niose figure was approximately 33 per cent based on a total average retireval figure of eighteen documents per search. Details of the size of the indexed collection, methods of indexing, and an analysis of the reasons for the retrieval of irrelevant documents are discussed, thereby providing information officers who are thinking of installing such a system with some evidence on which to base a decision as to whether or not to utilize these devices
- Source
- Journal of documentation. 22(1966), S.203-209
-
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
-
Aitchison, T.M.: Comparative evaluation of index languages : Part I, Design. Part II, Results (1969)
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-
Austin, D.: ¬The new general faceted classification : an outline of the CRG scheme (1969)
0.03
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- Source
- Catalogue and index. 14(1969), April, S.11-13
-
Mann, G.: ¬Der Systematische Katalog in Institutionsbibliotheken am Beispiel der Medizinhistorik (1962)
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- Date
- 3.10.2000 10:22:29
-
Chomsky, N.: Aspects of the theory of syntax (1965)
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- Date
- 6. 1.1999 10:29:22
-
Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963)
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-
Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
0.02
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-
Remane, A.: System und Klassifikation in der Biologie (1968)
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- Source
- System und Klassifikation in Wissenschaft und Dokumentation. Hrsg.: A. Diemer
-
Stephenson, G.: Andreas Schleiermacher, sein "Bibliographisches System" und die Religionsgeschichte (1967)
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-
System und Klassifikation in Wissenschaft und Dokumentation : Vorträge und Diskussionen im April 1967 in Düsseldorf (1968)
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-
Baer, H.: Bibliothek - Fachbibliothek - Dokumentation : vom Katalog zum automatic information system (1963)
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-
Borko, H.: Determining user requirements for an information storage and retrieval system : a systems approach (1962)
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-
Cuadra, C.A.; Katter, R.V.: Experimental studies of relevance judgements: final report : Vol.2: description of individual studies (1967)
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- Imprint
- Santa Monica, Calif. : System Development Corp.
