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Showing 1 to 15 of 87 results Save | Export
Barnett, Lynn – 1986
This brief review of the Educational Resources Information Center (ERIC) system is intended to make users more aware of (1) the system as a whole, (2) the process of indexing educational literature for the database, and (3) the role of the Thesaurus of ERIC Descriptors in the overall information dissemination process. An overview of the ERIC…
Descriptors: Databases, Indexing, Information Retrieval, Search Strategies
Peer reviewed Peer reviewed
Byrne, Jerry R. – Journal of the American Society for Information Science, 1975
Investigated the relative merits of searching on titles, subject headings, abstracts, free-language terms, and combinations of these elements. The combination of titles and abstracts came the closest to 100 percent retrieval. (Author/PF)
Descriptors: Abstracts, Databases, Indexing, Information Retrieval
Bates, Marcia J. – Online, 1988
Explains seven types of subject descriptions commonly used in databases--hierarchical classification, category codes, subject headings, descriptors, faceted classification, post-controlled vocabulary, and natural language--and describes specific search techniques for taking advantage of the strengths of particular types of vocabularies. An overall…
Descriptors: Classification, Databases, Indexing, Online Searching
Peer reviewed Peer reviewed
Zhang, Xiaoyan; Berry, Michael W.; Raghavan, Padma – Information Processing & Management, 2001
Discusses latent semantic indexing (LSI); considers the high cost associated with the singular value decomposition (SVD) of the large term-by-document matrix that becomes a barrier for its application to scalable information retrieval; and shows that information filtering using level search techniques can reduce the SVD computation cost for LSI.…
Descriptors: Costs, Indexing, Information Retrieval, Search Strategies
Peer reviewed Peer reviewed
Radecki, Tadeusz – Information Processing and Management, 1981
Demonstrates the property of inclusiveness of document retrieval systems where documents are indexed by unweighted terms and in which query search patterns are Boolean functions of descriptors and presents three methods for determining a partial ordering on a set of system responses to these queries. Eleven sources are listed. (FM)
Descriptors: Indexing, Information Retrieval, Information Systems, Methods
Documentation Inc., Washington, DC. – 1953
The Uniterm system of coordinate indexing, developed by the Armed Services Technical Information Agency, provides a method for the organization, storage, and retrieval of information. The contents of reports are analyzed, and terms are assigned to the documents. For each term there is a card upon which the accession number of documents assigned…
Descriptors: Coordinate Indexes, Guides, Indexing, Information Retrieval
Seiser, Virginia – Database, 1987
Describes the organization of the descriptors used in the ERIC database to indicate age, educational, and student levels, and suggests appropriate search strategies for the retrieval of information on specific age groups. (CLB)
Descriptors: Age Groups, Databases, Indexing, Online Searching
Cochrane, Pauline A.; And Others – American Libraries, 1984
This sixth and final course installment discusses subject access to information through the online catalog. Highlights include online catalog transaction logs (printouts showing each step in all searches done in system), search effectiveness, online user training, unified access, Library of Congress Subject Headings, and online catalog design.…
Descriptors: Indexing, Information Retrieval, Library Catalogs, Online Systems
Cochrane, Pauline A. – American Libraries, 1984
In this fourth of five course installments, statements by four practitioners and researchers on role of Library of Congress (LC) and its subject headings in improving subject access to United States libraries are presented. Comments from LC and a tabulation of suggestions from 10 respondents are included. (EJS)
Descriptors: Indexing, Information Retrieval, Library Catalogs, Online Systems
Knickerbocker, Wendy; Fernald, Anne Conway – Online, 1982
Introduces HARFAX Industry Data Sources, a bibliographic database which provides access to international sources of statistics on 60 key industries. Criteria for inclusion of material in the database, indexing policy, and uses of the database are discussed. Sample searches are illustrated and exhibits containing facts on the file are attached.…
Descriptors: Business, Databases, Indexing, Industry
Peer reviewed Peer reviewed
Nelson, Michael J. – Information Processing and Management, 1988
Describes a study that collected statistics on the occurrence of terms used in searching an online catalog and investigated the correlation of the selection of terms with their occurrence in indexing. The discussion of the results includes implications for indexing theories. (19 references) (CLB)
Descriptors: Correlation, Indexing, Online Catalogs, Online Searching
Peer reviewed Peer reviewed
Henry, Georgianna; Diodato, Virgil – Journal of Documentation, 1991
Describes a study that examined the rates of use of descriptors in the ERIC (Educational Resources Information Center) system during 1966-86 to determine whether certain levels of terms were used more than others and whether patterns of use were similar among hierarchies in the ERIC Thesaurus. (10 references) (LRW)
Descriptors: Hypothesis Testing, Indexing, Information Retrieval, Research Needs
Peer reviewed Peer reviewed
Kwok, K. L. – Information Processing and Management, 1988
Describes a method for enhancing the subject index terms of a document with title terms from cited, citing, and cocited documents. Experimental results of this methodology are presented, and responses to criticisms of this strategy are made. (40 references) (CLB)
Descriptors: Bibliographic Coupling, Citations (References), Cost Effectiveness, Indexing
Peer reviewed Peer reviewed
Srinivasan, Padmini – Information Processing & Management, 1996
Discussion of MEDLINE document indexing focuses on a study that assessed the use of free text, Medical Subject Headings (MeSH), and a variety of combination retrieval strategies. Prior research involving free text and controlled vocabularies is reviewed, and results of the study indicate that MeSH does have an important role in text retrieval.…
Descriptors: Indexing, Information Retrieval, Keywords, Literature Reviews
De Heer, T. – Information Storage and Retrieval, 1974
Use of syntactic trace as an access strategy for large files containing arbitrary languages for which thesaurus-based and multiple attribute search techniques are unsuitable. (LS)
Descriptors: Indexing, Information Retrieval, Information Storage, Mathematical Models
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