Search (247 results, page 13 of 13)

  • × year_i:[1960 TO 1970}
  1. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.00 
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    Source
    Journal of documentation. 22(1966), S.203-209
  2. International Symposium on Relational Factors in Classification, Univ. of Maryland, 8.-11.6.1966. Proceedings (1967) 0.00 
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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
  3. Melton, J.S.: ¬A use for the techniques of structural linguistics in documentation research (1965) 0.00 
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    Source
    Classification research. Proc. 2nd Int. Study Conf. ... Elsinore, 14.-18.8.1964. Ed.: P. Atherton
  4. Wilson, P.: Subjects and the sense of position (1968) 0.00 
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  5. Austin, D.: Prospects for a new general classification (1969) 0.00 
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    Date
    10.10.2014 18:17:29
  6. Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967) 0.00 
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    Abstract
    As an attempt to make a general structural theory of information retrieval, a documentation system (DS) is defined as a formal system consisting of (a) a set o of objects (documents); (b) a set A++ of elementary attributes (key-words), from which further attributes may be constructed: A++ generates A; (c) a set of axioms of the form X++(x)=m (m¯M, M a set of constant connecting attributes with objects: from the axioms further theorems (=true statements) may be constructed. By use of the theorems, different mappings O -> P(o) (P(o) set of all subsets of o) (search question -> set of documents retrieved) are defined. The type of a DS depends on two basic decisions: (1) choice of the rules for the construction of attributes and theorems, e.g., logical product in coordinate indexing; links. (2) choice of M; M may consist of the two constants 'applicable' and 'not applicable', or some positive integers, ...; Further practical decisions: A++ hierarchical or not; kind of mapping; introduction of roles (=further attributes). The most simple case - ordinary two-valued Coordinate Indexing - is discusssed in detail; o is a free distributive (but not Boolean) lattice, the homographic image a ring of subsets of o; instead of negation which is not useful, a useful retrieval operation 'praeternagation' is introduced. Furthermore these are discussed: a generalized definition of superimposed coding, some functions for the distance of objects or attributes; optimization and automatic derivation of classifications. The model takes into account term-term relations and document-document relations. It may serve as a structural framework in terms of which the functional problems of retrieval theory may be expressed more clearly
  7. Hillman, D.J.: Mathematical classification techniques for nonstatic document collections, with particular reference to the problem of relevance (1965) 0.00 
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    Source
    Classification research. Proc. of the 2nd Int. Study Conf. ... , Elsinore, 14.-18.9.1964. Ed.: P. Atherton

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