Search (13 results, page 1 of 1)

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Abstract

Problems of indexing and searching free-text data bases are discussed in detail. The possibilities and limitations of Boolean searching are shown. An experimental system COPSY (Context operator syntax) that was built in order to avoid common errors connected with Boolean search is outlined. This system permits, as input, any natural language search question formulation and yields, as output, documents ranked on the basis of an automatically calculated correspondence between natural language search questions and content-based analysis of documents. COPSY is part of a text processing project at Siemens AG called TINA (Text-Inhalts-Analyse...). Software from TINA is actually being applied and evaluated by the US Department of Commerce for patent searching and indexing.

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Date

22. 7.2000 18:22:27

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Abstract

40 doctoral student were trained to search INSPEC or ERIC on DIALOG using either the Sci-Mate Menu or native commands. In comparison with 20 control subjects for whom a free search was performed by an intermediary, the experiment subjects were no less satisfied with their retrievals, which were fewer in number but higher in precision than the retrievals produced by the intermediaries. Use of the menu interface did not affect quality of retrieval or user satisfaction, although subjects instructed to use native commands required less training time and interacted more with the data bases than did subjects trained on the Sci-Mate Menu. INSPEC subjects placed a higher monetary value on their searches than did ERIC subjects, indicated that they would make more frequent use of ddata bases in the future, and interacted more with the data base.

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Series

Reference librarian; no.22

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Abstract

A retrieval experiment was conducted to compare on-line searching using terms opposed to citations. This is the first study in which a single data base was used to retrieve two equivalent sets for each query, one using terms found in the bibliographic record to achieve higher recall, and the other using documents. Reports on the use of a second citation searching strategy. Overall, by using both types of search keys, the total recall is increased.

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Content

Enthält die Beiträge: VICKERY, B.C.: An approach to information science; HENRIKSEN, T.: Information science: towards consensus; HOEL, I.A.L.: On the concept of knowledge and its relation to information science; PRATT, A.D. Information and emmorphosis: an attempt at definition; BRITTAIN, J.M.: What are the distinctive characteristics of information science? MEY, M. de: The relevance of the cognitive paradigm for information science; BIVINS, K.T. Concept formation: the evidence from experimental psychology and linguistics and its relationship to information science; DEBONS, A.: Foundations of information science; WELLISCH, H.H.: The cybernetics of bibliographic control: toward a theory of document retrieval systems; FAIRTHORNE, R.A. Bradford's law and perspective; BROOKES, B.C.: People versus particles; GRIFFITHS, J.-M.: Alternative approaches to information retrieval system simulation; GOFFMAN, W.: On the effectiveness problem in communication; ROBERTSON, S.E.: Some recent theories and models in information retrieval; HEINE, M.H.: The 'question' as a fundamental variable in information science; PEJTERSEN, A.M.: Sesign of a classification scheme for fiction based on an analysis of actual user-librarian communication; and use of the scheme for control of librarians' search strategies; INGWERSEN, P., T. JOHANSEN u. P. TIMMERMANN: User-librarian negotiations and search procedures: a progress report; KOCHEN, M.: Control of attention in raising consciousness about community issues; BELKIN, N.J.: The problem of 'matching' in information retrieval; WILSON, T.D.: Information system design implications of research into the information behavoiur of social workers and social administrators; NEVELING, U. u. G. WERSIG: The information scientist of the 1980s in Europe

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Content

Enthält u.a die Beiträge: HILDRETH, Ch.: Online public access catalogues; VOGT, H.: The future of online catalogues in the northern areas of Germany; SEAL, A.: Data structures, MARC and online access; HOLM, L.: Design of databases as good catalogues; RISHOEJ, J.: From database-production to an online catalogue; BUCKLE, D.: OCLC Europe: bibliographic database services for catalogue conversion; FERGUSON, J.: Future of online catalogues. UTLAS in Europe - a personal view; SÜLE, G.: Problems of duplicate records, standards and quality control; HUNSTAD, S.: Problems of duplicate records; SCHOOTS, P.: Browsers in Rotterdam: popular access to the database; KINSELLA, J.: "Prospects for browsing": experimental approaches to the presentation of brief entries and the design of 'browse screens'; MERRIN, G.: Access points and search methods in the SIBIL system with special reference to Boolean and tree search; KOHL, E.: The online union catalogue of parliamentary and government institutions in the Federal Republic of Germany; COSTERS, L. u. J. BUYS: The results of an experiment with an online public access catalogue; NOERR, K.B. u. P. NOERR: A microcomputer system for online catalogues; RAITT, D.: Online catalogues: the facts, the features, the future

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Content

Enthält die Beiträge: ROBERTSON, S.E.: The methodology of information retrieval experiment; RIJSBERGEN, C.J. van: Retrieval effectiveness; BELKIN, N.: Ineffable concepts in information retrieval; TAGUE, J.M.: The pragmatics of information retrieval experimentation; LANCASTER, F.W.: Evaluation within the environment of an operating information service; BARRACLOUGH, E.D.: Opportunities for testing with online systems; KEEN, M.E.: Laboratory tests of manual systems; ODDY, R.N.: Laboratory tests: automatic systems; HEINE, M.D.: Simulation, and simulation experiments; COOPER, W.S.: Gedanken experimentation: an alternative to traditional system testing?; SPARCK JONES, K.: Actual tests - retrieval system tests; EVANS, L.: An experiment: search strategy variation in SDI profiles; SALTON, G.: The Smart environment for retrieval system evaluation - advantage and problem areas

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Abstract

The Art and Architecture Thesaurus (AAT) was designed as a comprehensive vocabulary in its domain. Its faceted, hierarchically arranged structure allows for powerful indexing and retrieval capabilities, while its planned network of related term relationships makes it especially amenable to natural language processing. To gauge the AAT's effectiveness as a search tool against natural language queries, an experiment was carried out on DIALOG. There are 3 art data bases on DIALOG and there are also a number of other data bases that contain art related material. The experiment used queries culled from reference librarians at art and architecture libraries.

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Content

Enthält die Beiträge: ADDIS, T.: Extended relational analysis: a design approach to knowledge-based systems; PARKINSON, D.: Supercomputers and non-numeric processing; McGREGOR, D.R. u. J.R. MALONE: An architectural approach to advances in information retrieval; ALLEN, M.J. u. O.S. HARRISON: Word processing and information retrieval: some practical problems; MURTAGH, F.: Clustering and nearest neighborhood searching; ENSER, P.G.B.: Experimenting with the automatic classification of books; TESKEY, N. u. Z. RAZAK: An analysis of ranking for free text retrieval systems; ZARRI, G.P.: Interactive information retrieval: an artificial intelligence approach to deal with biographical data; HANCOX, P. u. F. SMITH: A case system processor for the PRECIS indexing language; ROUAULT, J.: Linguistic methods in information retrieval systems; ARAGON-RAMIREZ, V. u. C.D. PAICE: Design of a system for the online elucidation of natural language search statements; BROOKS, H.M., P.J. DANIELS u. N.J. BELKIN: Problem descriptions and user models: developing an intelligent interface for document retrieval systems; BLACK, W.J., P. HARGREAVES u. P.B. MAYES: HEADS: a cataloguing advisory system; BELL, D.A.: An architecture for integrating data, knowledge, and information bases

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Date

7. 1.1996 22:47:52

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Date

9. 1.1996 10:22:31