-
Hockett, C.F.: ¬The problem of universals in language (1963)
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- Pages
- S. 1-22
- Source
- Universals of language. Ed.: J.H. Greenberg
-
Moss, R.: Categories and relations : Origins of two classification theories (1964)
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- Abstract
- The resemblances between the categories of Aristotle and those of Ranganathan are shown. These categories are examined in the light of criticism made by Bertrand Russell and are shown to have no validity. Similar comparisons are made between the relations of Huma and Farradane. Farradane's work is a return to Hume, who is generally acknowledged as one of the founders of the British school of empirical philosophy which continues to Russell and beyond. In Russell's work lies the most promising line of development for information classification and indexing
-
Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969)
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- Abstract
- Two general requirements for overall measures of retrieval effectiveness are proposed, namely that the measures should be as far as possible independent of generality (this is interpreted to mean that it can be described in terms of recall and fallout), and that it should be able to measure the effectiveness of a performance curve (it should not be restricted to a simple 2X2 table). Several measures that have been proposed are examined with these conditions in mind. It turns out that most of the satisfactory ones are directly or indirectly related to swet's measure A, the area under the recall-fallout curve. In particular, Brookes' measure S and Rocchio's normalized recall are versions of A.
- Source
- Journal of documentation. 25(1969) no.2, S.93-106
-
Mooers, C.: ¬The indexing language of an information retrieval system (1963)
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- Footnote
- Reprinted in: Theory of subject analysis: a sourcebook. Ed. by L.M. Chan et al. Littleton, CO: Libraries Unlimited 1985, S.247-261
- 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
-
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
-
Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966)
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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
-
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.
-
Hillman, D.J.: Mathematical classification techniques for nonstatic document collections, with particular reference to the problem of relevance (1965)
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- Abstract
- It is first argued that classification schemes have an essentially hypothetical nature, whose adoption is not anything which can be true or false. Such schemes are therefore corrigible and susceptible of modification as fresh data accrue. These schemes are tools for the logical analysis of the structure of recorded knowledge. Their use amount to the adoption of a hypothesis. ... It is therefore imperative that classification schemes be devised which do allow us to deal with sets of documents that change with time. The formal bases of two such schemes are next described. They are known, respectively, as implicative lattices and subtractive lattices ...
- Source
- Classification research. Proc. of the 2nd Int. Study Conf. ... , Elsinore, 14.-18.9.1964. Ed.: P. Atherton
-
Rübesame, O.: Probleme des geographischen Schlüssels (1963)
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- Date
- 17. 1.1999 13:22:22
-
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
- Source
- Journal of the Association for Computing Machinery. 7(1960) no.3, S.216-244
-
Fill, K.: ¬Die Dezimalklassifikation im allgemeinen und in Deutschland (1967)
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- Source
- DK-Mitteilungen. 12(1967) Nr.5, S.19-22
-
Meyer-Uhlenried, K.H.: Ordnungsprinzipien der Speicherung in der Dokumentation (1965)
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- Source
- Nachrichten für Dokumentation. 16(1965), S.18-22
-
Schön, J.: Zum Gedenken an Paul Otlet : 1868-1944 (1968)
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- Source
- DK-Mitteilungen. 13(1968) Nr.6, S.21-22
-
Jonzeck, M.: ¬Die Aktivierung, Verbesserung und Neuorientierung der Informationstätigkeit der allgemeinen öffentlichen Bibliotheken (1965)
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- Bibliothekar. 19(1965), S.15-22
-
Reblin, B.: ¬Die neue "Systematik für Allgemeinbildende Bibliotheken" (1963)
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- Date
- 5. 8.1999 15:16:22
-
Booth, A.D.: On the geometry of libraries (1969)
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- Source
- Journal of documentation. 25(1969), S.28-42
-
Farradane, J.E.L.: ¬The challenge of information retrieval (1961)
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- Source
- Journal of documentation. 17(1961), S.223-244
-
Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967)
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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
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Habermas, J.: Technischer Fortschritt und soziale Lebenswelt (1968)
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- Date
- 22. 7.2023 20:22:54
-
Neelameghan, A.: Use of computer for the synthesis of class number : a case study with a freely faceted version of Colon Classification (1968)
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