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| Cooper, William S. | 1 |
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Peer reviewedCooper, William S. – Information Processing and Management, 1988
Describes several problems encountered when using the Boolean model of information retrieval, and for each problem offers a nontraditional design principle that overcomes the difficulty. The problems discussed are the unfriendliness of Boolean formulas, null output and output overload, undifferentiated facets, interpreting weights, and term…
Descriptors: Evaluation Criteria, Information Retrieval, Online Searching, Performance Factors
Peer reviewedShi, Yunhua; Larson, Ray – Information Technology and Libraries, 1990
Discusses the distinctive differences between the English and Chinese languages from the system designer's point of view and explores the potential problems for Chinese information retrieval systems, focusing on character entry and retrieval. The advantages and disadvantages of current approaches are discussed, and a regular expression search…
Descriptors: Chinese, Ideography, Information Retrieval, Information Storage
Download full textJansen, Bernard J.; Spink, Amanda; Saracevic, Tefko – 1999
This paper reports on a transaction log analysis of 51,473 queries from 18,113 users of Excite, a major World Wide Web search engine. Approximately 2,500 of these queries were from the use of relevance feedback. Given the high level of research activity and historical success of relevance feedback in assisting users in locating relevant…
Descriptors: Feedback, Information Retrieval, Relevance (Information Retrieval), Search Strategies
Peer reviewedMaron, M. E. – Information Processing and Management, 1988
Discusses the probabilistic nature of information retrieval, and describes a front end system designed to permit searchers to attach probabilistically interpreted weights to query terms, which could be adapted for conventional information retrieval systems without requiring radical changes in current indexing procedures. (37 references) (CLB)
Descriptors: Bibliographic Databases, Design Requirements, Full Text Databases, Information Retrieval
Peer reviewedCochrane, Pauline A. – Technicalities, 1989
Reviews the problems of users of online public access catalogs and argues that it is necessary to think of all searching problems as systems problems rather than user failures, and to concentrate research in the area of systems enhancements. A list of improved tools needed for subject searching in online catalogs is identified. (CLB)
Descriptors: Online Catalogs, Online Searching, Research Needs, Search Strategies
Peer reviewedMeadow, Charles T.; And Others – Journal of the American Society for Information Science, 1989
Reports on design and rationale of Online Access to Knowledge, a computer intermediary developed by Online Access to Knowledge Project to enable users with little or no training or experience in bibliographic searching to conduct their own searches. Topics covered include software design, tutorials and assistance programs, and conclusions based on…
Descriptors: Bibliographic Databases, Computer System Design, Decision Making, Formative Evaluation
