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Showing 226 to 240 of 342 results Save | Export
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Salton, Gerald – Information Processing and Management, 1992
The current state of information retrieval (IR) evaluation is reviewed with criticisms directed at the available test collections and the research and evaluation methodologies used, including precision and recall rates for online searches and laboratory tests not including real users. Automatic text retrieval systems are also discussed. (32…
Descriptors: Databases, Evaluation Methods, Indexing, Information Retrieval
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Fidel, Raya – Special Libraries, 1992
Describes a study of professional searchers that investigated their decisions about using search terms. The use of descriptors from a controlled vocabulary versus the use of textwords for free-text searching is examined, searching styles and differences in subject areas are discussed, and the quality of thesauri and indexing is considered. (six…
Descriptors: Comparative Analysis, Databases, Decision Making, Indexing
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Dalrymple, Prudence W.; Younger, Jennifer A. – College and Research Libraries, 1991
Proposes that methods intended to assist in information retrieval be grouped together and that the group be called "informed retrieval," a process which uses feedback from an information system to improve retrieval results. It is suggested that an integrated framework be developed that includes authority control and informed retrieval as…
Descriptors: Databases, Heuristics, Higher Education, Indexing
Milstead, Jessica L. – Searcher, 1999
Reports how a cross-section of database producers, search services, and aggregators are using vocabulary management to facilitate cross-file searching. Discusses the range of subject areas and audiences; indexing; vocabulary control within databases; machine aids to indexing; and aids to cross-file searching. A chart contains sources of files and…
Descriptors: Access to Information, Databases, Indexes, Indexing
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Hjorland, Birger; Nielsen, Lykke Kyllesbech – Annual Review of Information Science and Technology (ARIST), 2001
Discussion of subject access points in databases concentrates on the broader theoretical perspective. Topics include technology-driven stages in the development of subject access points; a taxonomy of subject access points; document titles; abstracts; references and citations; full text; and descriptors, identifiers, classification codes, and…
Descriptors: Abstracts, Access to Information, Citations (References), Classification
Sahli, Marilyn Sue – 1981
Analysis of current methods for achieving compatibility or convertibility between two or more indexing languages draws attention to the need for a switching language to establish equivalency between concepts, not terms. In order to examine the assumption of the conceptual equivalency of identical terms in the indexing languages of related subject…
Descriptors: Comparative Analysis, Databases, Definitions, Education
Royal Inst. of Tech., Stockholm (Sweden). Library. – 1981
The indexing rules presented are designed for use with a new French-German database on metallurgy being developed under an agreement by CNRS (Centre National de la Recherche Scientifique, Paris) and BAM (Bundesanstalt fur Materialprufung, Berlin). The new database, which will feature multilingual titles and index terms (French-German-English-) and…
Descriptors: Databases, French, German, Guidelines
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White, Lee J.; And Others – 1975
The major advantage of sequential classification, a technique for automatically classifying documents into previously selected categories, is that the entire document need not be processed before it is classified. This method assumes the availability of a priori categories, a selection of keywords representative of these categories, and the a…
Descriptors: Algorithms, Automatic Indexing, Bayesian Statistics, Classification
Chabran, Richard – 1979
Monographs, periodical literature, documents, unpublished reports, and non-print materials in both English and Spanish would be included in a proposed Hispanic data base built around an initial 15 contributing collections totalling an estimated 100,000 items. Because users would employ indexing terms to access the data base, a thesaurus is…
Descriptors: Databases, Guidelines, Hispanic Americans, Indexing
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And Others; Cittadino, Mary L. – BioScience, 1977
Three computer-based scientific bibliographic retrieval systems were evaluated for cleanness (consistency and internal duplication), comprehensiveness, timeliness, and costs. The appropriateness of using one or more of these data bases was found to depend upon the objectives of the end-user. (MA)
Descriptors: Automatic Indexing, Computer Storage Devices, Databases, Delivery Systems
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Romanos, Vasso Apostolidis; Fittipaldi, John J. – Online Review, 1987
Describes the development of a bibliographic information system designed to assist architecture/engineering firms under contract to the Army Corps of Engineers in locating regulations or guidelines for the planning, design, or construction of army facilities. A sample search of the system is appended. (Author/CLB)
Descriptors: Architecture, Databases, Engineering, Facility Guidelines
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Chun, Alan – Canadian Library Journal, 1987
Describes a microcomputer-assisted method of using the commercial dBase III software package for the management of a personal bibliographic storage and retrieval system. This system provides users with a systematic way of keeping, for rapid retrieval, references to papers or documents previously read. (Author/CLB)
Descriptors: Automatic Indexing, Computer Software, Database Management Systems, Databases
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Blair, David C. – Information Processing and Management, 1986
Discusses indeterminancy of selection of terms by indexers and by inquirers as major factors influencing subject access to documents in document retrieval systems. Five types of interactions between these two indeterminancies are discussed, and a change in traditional method of subject searching is suggested to reduce effect of inter-indexer…
Descriptors: Databases, Indexing, Information Retrieval, Mathematical Formulas
Peer reviewed Peer reviewed
Hawkins, Donald T. – Online Review, 1984
This annual update of a bibliography that was published as a supplement to the first issue of "Online Review" contains 931 references covering the approximate time period of late 1982 through early 1984. Entries are arranged by author within each of 11 sections. Permuted title and author indexes are included. (EJS)
Descriptors: Costs, Databases, Indexing, Information Retrieval
Peer reviewed Peer reviewed
Hawkins, Donald T. – Online Review, 1984
Provides permuted title and author indexes to the 931-item seventh annual update (July 1984 issue of "Online Review") of a bibliography on online information retrieval which was published as a supplement to the first issue of "Online Review." The approximate time period of late 1982 through early 1984 is covered. (EJS)
Descriptors: Costs, Databases, Indexing, Information Retrieval
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