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  • × year_i:[1960 TO 1970}
  1. Melton, J.S.: ¬A use for the techniques of structural linguistics in documentation research (1965) 0.05 
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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
  2. Houston, N.; Wall, E.: ¬The distribution of term usage in manipulative indexes (1964) 0.05 
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  3. Iker, H.P.: Solution of Boolean equations through the use of term weights to the base two (1967) 0.04 
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  4. Maron, M.E.; Kuhns, I.L.: On relevance, probabilistic indexing and information retrieval (1960) 0.03 
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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
  5. Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967) 0.02 
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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
  6. Rübesame, O.: Probleme des geographischen Schlüssels (1963) 0.02 
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    Date
    17. 1.1999 13:22:22
  7. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.02 
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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
  8. Wiener, N.: Kybernetik : Regelung und Nachrichtenübertragung im Lebewesen und in der Maschine (1963) 0.02 
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    Abstract
    It is the first public usage of the term "cybernetics" to refer to self-regulating mechanisms. The book laid the theoretical foundation for servomechanisms (whether electrical, mechanical or hydraulic), automatic navigation, analog computing, artificial intelligence, neuroscience, and reliable communications.
  9. Fill, K.: ¬Die Dezimalklassifikation im allgemeinen und in Deutschland (1967) 0.01 
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    Source
    DK-Mitteilungen. 12(1967) Nr.5, S.19-22
  10. Meyer-Uhlenried, K.H.: Ordnungsprinzipien der Speicherung in der Dokumentation (1965) 0.01 
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    Source
    Nachrichten für Dokumentation. 16(1965), S.18-22
  11. Schön, J.: Zum Gedenken an Paul Otlet : 1868-1944 (1968) 0.01 
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    Source
    DK-Mitteilungen. 13(1968) Nr.6, S.21-22
  12. Mann, G.: ¬Der Systematische Katalog in Institutionsbibliotheken am Beispiel der Medizinhistorik (1962) 0.01 
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    Date
    3.10.2000 10:22:29
  13. Chomsky, N.: Aspects of the theory of syntax (1965) 0.01 
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    Date
    6. 1.1999 10:29:22
  14. Hockett, C.F.: ¬The problem of universals in language (1963) 0.01 
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    Pages
    S. 1-22
  15. Jonzeck, M.: ¬Die Aktivierung, Verbesserung und Neuorientierung der Informationstätigkeit der allgemeinen öffentlichen Bibliotheken (1965) 0.01 
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    Source
    Bibliothekar. 19(1965), S.15-22
  16. Reblin, B.: ¬Die neue "Systematik für Allgemeinbildende Bibliotheken" (1963) 0.01 
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    Date
    5. 8.1999 15:16:22
  17. Coates, E.J.: CRG proposals for a new general classification (1969) 0.01 
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    Pages
    S.19-22
  18. Barden, B.R.; Denison, B.: Guide to the SLA loan collection of classification schemes and subject heading lists on deposit at Western Reserve Univ. as of March 20, 1961 (1961) 0.01 
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    Footnote
    Rez. in: College and research libraries 22(1961) no.6, S.483-484 (A.R. Lindsay)
  19. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.01 
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    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
  20. Gordon, T.J.; Helmer-Hirschberg, O.: Report on a long-range forecasting study (1964) 0.01 
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    Date
    22. 6.2018 13:24:08
    22. 6.2018 13:54:52

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