Search (1817 results, page 1 of 91)

  • × year_i:[1990 TO 2000}
  1. Warner, A.J.: Quantitative and qualitative assessments of the impact of linguistic theory on information science (1991) 0.12
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    Date
    6. 1.1999 10:22:45
  2. Information systems outsourcing in theory and practice (1995) 0.12
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    Date
    22. 7.1996 10:51:56
  3. DeRaedt, L.: Logical settings for concept-learning (1997) 0.10
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    Abstract
    Analyzes 3 different formalisations of concept-learning in logic. Learning from interpretations reduces to learning from entailment, which in turn reduces to learning from satisfiability. Discusses the implications for inductive logic programming and computational learning theory and formulates guidelines for choosing a problem-setting method
    Date
    6. 3.1997 16:22:15
    22. 1.1999 18:56:45
  4. Dickson, N.: Understanding the information economy : putting theory back into practice (1997) 0.08
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    Date
    22. 2.1999 16:01:46
  5. Mikacic, M.: Statistical system for subject designation (SSSD) for libraries in Croatia (1996) 0.08
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    Abstract
    Describes the developments of the Statistical System for Subject Designation (SSSD): a syntactical system for subject designation for libraries in Croatia, based on the construction of subject headings in agreement with the theory of the sentence nature of subject headings. The discussion is preceded by a brief summary of theories underlying basic principles and fundamental rules of the alphabetical subject catalogue
    Date
    31. 7.2006 14:22:21
    Source
    Cataloging and classification quarterly. 22(1996) no.1, S.77-93
  6. Huth, M.: Symbolic and sub-symbolic knowledge organization in the Computational Theory of Mind (1995) 0.08
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    Abstract
    We sketch the historic transformation of culturally grown techniques of symbol manipulation, such as basic arithmetic in the decimal number system, to the full-fledges version of the Computational Theory of Mind. Symbol manipulation systems had been considered by Leibniz as a methodology of inferring knowledge in a secure and purely mechanical fashion. Such 'inference calculi' were considered as mer artefacts which could not possibly encompass als human knowldge acquisition. In Alan Turing's work one notices a crucial shift of perspective. The abstract mathematical states of a Turing machine (a kind of 'calculus universalis' that Leibniz was looking for) are claimed to correspond th equivalent psychological states. Artefacts are turned into faithful models of human cognition. A further step toward the Computational Theory of Mind was the physical symbol system hypothesis, contending to have found a necessary and sifficient criterion for the presence of 'intelligence' in operative mediums. This, together with Chomsky's foundational work on linguistics, led naturally to the Computational Theory of Mind as set out by Jerry Fodor and Zenon Pylshyn. We discuss problematic aspects of this theory. Then we deal with another paradigm of the Computational Theory of Mind based on network automata. This sub-symbolic paradigm seems to avoid problems occuring in symbolic computations, like the proble 'frame problem' and 'graceful degradation'
    Source
    Knowledge organization. 22(1995) no.1, S.10-17
  7. Avramescu, A.: Teoria difuziei informatiei stiintifice (1997) 0.07
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    Abstract
    The theory of diffusion can be successfully applied to scientific information dissemination by identifying space with a series of successive authors, and potential (temperature) with the interest of new authors towards earlier published papers, measured by the number of citations. As the total number of citation equals the number of references, the conservation law is fulfilled and Fourier's parabolic differential equation can be applied
    Date
    22. 2.1999 16:16:11
    Footnote
    Übers. des Titels: Scientific information diffusion theory
  8. Neelameghan, A.: Application of S.R. Ranganathan's postulates and principles of the general theory of knowledge classification to database design and information retrieval (1993) 0.07
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    Source
    International cataloguing and bibliographic control. 22(1993) no.3, S.46-50
  9. Way, E.C.: Knowledge representation and metaphor (oder: meaning) (1994) 0.07
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    Content
    Enthält folgende 9 Kapitel: The literal and the metaphoric; Views of metaphor; Knowledge representation; Representation schemes and conceptual graphs; The dynamic type hierarchy theory of metaphor; Computational approaches to metaphor; Thenature and structure of semantic hierarchies; Language games, open texture and family resemblance; Programming the dynamic type hierarchy; Subject index
    Footnote
    Bereits 1991 bei Kluwer publiziert // Rez. in: Knowledge organization 22(1995) no.1, S.48-49 (O. Sechser)
  10. Beghtol, C.: Toward a theory of fiction analysis for information storage and retrieval (1992) 0.07
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    Date
    5. 8.2006 13:22:08
  11. Klir, G.I.; Wierman, M.J.: Uncertainty-based information : Elements of generalized information theory (1998) 0.06
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    Abstract
    The book is an overview of the development of basic ideas and mathematical results regarding measures and principles of uncertainty-based information formalized within the framework of classical set theory, probability theory, fuzzy set theory, possibility theory, and the Dempster-Shafer theory of evidence
  12. Leazer, G.H.; Smiraglia, R.P.: Bibliographic families in the library catalog : a qualitative analysis and grounded theory (1999) 0.06
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    Abstract
    Forty-five years have passed since Lubetzky outlined the primary objectives of the catalog, which should facilitate the identification of specific bibliographic entities, and the explicit recoguition of works and relationships amongthem. Still, our catalogs are better designed to identify specific bibliographic entities than they are to guide users among the network of potential related editions and translations of works. In this paper, we seck to examine qualitatively some interesting examples of families of related works, defined as bibliographic families. Although the cases described here were derived from a random sample, this is a qualitative analysis. We selected these bibliographic families for their ability to reveal the strengths and weaknesses of Leazer's model, which incorporates relationship taxonomies by Tillett and Smiraglia Qualitatice analysis is intended to produce on explanation of a phenomenou, particularly an identification of any palterns observed. Patterns observed in qualitative analysis can be used to affirm external observations of the same phenomena; conclusions can contribute to what is knoton as grounded theory-a unique explanation grounded in the phenomenon under study. We arrive at two statements of grounded theory concerning bibliographic families: cataloger-generated implicit maps among works are inadequate, and qualitative analysis suggests the complexity of even the smallest bibliographic families. We conclude that user behavior study is needed to suggest which alternative maps are preferable.
    Date
    10. 9.2000 17:38:22
  13. Krause, P.J.; Clark, D.: Representing uncertain knowledge (1993) 0.06
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    LCSH
    Uncertainty (Information theory)
    Knowledge representation (Information theory)
    Subject
    Uncertainty (Information theory)
    Knowledge representation (Information theory)
  14. Abrahamson, J.R.: Mind, evolution, and computers (1994) 0.06
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    Abstract
    Science deals with knowledge of the material world based on objective reality, and is under constant attack by those who need magic, that is concepts based on imagination and desire. Roger Penrose in 'The emperor's new mind' attampts to look beyond objective reality to questions concerning the machinery and method of the operation of the human mind, using the theory that computers will never be able to duplicate the human experience. Shows where Penrose is wrong by reviewing the evolution of men and computers and speculating about where computers might and might not imitate human perception. Warns against the danger of passive acceptance when respected scientists venture into the occult
    Source
    AI magazine. 15(1994) no.1, S.19-22
  15. Yee, M.M.: What is a work? : part 1: the user and the objects of the catalog (1994) 0.06
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    Abstract
    Part 1 of a series of articles, exploring the concept of 'the work' in cataloguing practice, which attempts to construct a definition of the term based on AACR theory and practice. The study begins with a consideration of the objects of the catalogue, their history and the evidence that bears on the question of the degree to which the user needs access to the work, as opposed to a particular edition of the work
    Footnote
    Vgl. auch: Pt.2: Cataloging and classification quarterly. 19(1994) no.2, S.5-22; Pt.3: Cataloging and classification quarterly. 20(1995) no.1, S.25-46; Pt.4: Cataloging and classification quarterly. 20(1995) no.2, S.3-24
  16. Ledesma, L.D.: ¬A computational approach to George Boole's discovery of mathematical logic (1997) 0.06
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    Abstract
    Reports a computational model of George Boole's discovery of logic as part of mathematics. Studies the different historical factors that influences this theory, and produces a computational representation of Boole's logic before it was mathematized, and a production system, BOOLE2, that rediscovers logic as a science that behaves exactly as a branch of mathematics, and that thus validates to some extent the historical explanation. The system's discovery methods are found to be general enough to handle 3 other cases: 2 version of a geometry due to a contemporary of Boole, and a small subset of the differential calculus
    Date
    6. 3.1997 16:22:15
  17. Vakkari, P.; Kuokkanen, M.: Theory growth in information science : applications of the theory of science to a theory of information seeking (1997) 0.05
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    Abstract
    Describes a study whose aim was to analyse theory growth in information science by using a case from information seeking studies. Scientific growth is identified with the growth of theories. Differentiates 3 contexts of theoretical work: unit theories, theoretical research programmes and metatheories. States that for analysis if theory growth, tools based on the current theory of science are needed. Introduces tools for the analysis of theory growth and theory reconstruction and applies them to analysis of a theory on information seeking
  18. Huibers, T.W.C.; Bruza, P.D.: Situations, a general framework for studying information retrieval (1996) 0.05
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    Abstract
    Presents a framework for the theoretical comparison of information retrieval models based on how the models decide aboutness. The framework is based on concepts emerging from the field of situation theory. So called infons and profons represent elementary information carriers which can be manipulated by unions and fusion operators. These operators allow relationships between information carriers to be established. Sets of infons form so called situations which are used to model the information born by objects such as documents. Demonstrates how an arbitrary information retrieval model can be mapped down into the framework with special functions defined for this purpose depending on the model at hand. 2 examples are given based on the Boolean retrieval and coordination level matching models. Starting from an axiomatization of aboutness, retrieval models can be compared according to which axioms they are governed by
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  19. Foskett, A.C.: ¬The subject approach to information (1996) 0.05
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    Abstract
    This 5th ed. has been heavily revised and partly rewritten. It comprises 5 parts: (1) Theory of information retrieval systems (covering derived indexing, printed indexes and database access systems as well as sematics and syntax); (2) Precoordinate indexing systems (covering subject headings, notation, alphabetical index, OPACs); (3) Precoordinate indexing languages (covering the DDC, UDC, BC, CC, LCC, LCSH and shorter lists of subject headings); (4) Postcoordinate indexing languages; (5) The future (digital libraries). Author and subject index
    Date
    25. 7.2002 21:22:31
  20. Kwasnik, B.H.: ¬The role of classification in knowledge representation (1999) 0.05
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    Abstract
    A fascinating, broad-ranging article about classification, knowledge, and how they relate. Hierarchies, trees, paradigms (a two-dimensional classification that can look something like a spreadsheet), and facets are covered, with descriptions of how they work and how they can be used for knowledge discovery and creation. Kwasnick outlines how to make a faceted classification: choose facets, develop facets, analyze entities using the facets, and make a citation order. Facets are useful for many reasons: they do not require complete knowledge of the entire body of material; they are hospitable, flexible, and expressive; they do not require a rigid background theory; they can mix theoretical structures and models; and they allow users to view things from many perspectives. Facets do have faults: it can be hard to pick the right ones; it is hard to show relations between them; and it is difficult to visualize them. The coverage of the other methods is equally thorough and there is much to consider for anyone putting a classification on the web.
    Source
    Library trends. 48(1999) no.1, S.22-47

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