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Classification Clustering, Probabilistic Information Retrieval, and the Online Catalog.
Peer reviewed Peer reviewed
Larson, Ray R. – Library Quarterly, 1991
Discusses problems with subject searches in online library catalogs and examines theoretical principles for the design of effective information retrieval systems. Probabilistic ranking methods are discussed, and an experimental online catalog called CHESHIRE is described. It is noted that CHESHIRE uses classification clustering, provides natural…
Descriptors: Classification, Information Retrieval, Library Catalogs, Online Catalogs
TREC Initiative with Cheshire II.
Peer reviewed Peer reviewed
Larson, Ray R. – Information Processing & Management, 2001
Describes the University of California at Berkeley's participation in the TREC (Text Retrieval Conference) interactive track experiments. Highlights include results of searches on two systems, Cheshire II and ZPRISE; system design goals and implementation; precision and recall results; search questions by topic and system; and results of…
Descriptors: Computer System Design, Databases, Higher Education, Information Retrieval
Information Access for a Digital Library: Cheshire II and the Berkeley Environmental Digital Library.
Larson, Ray R.; Carson, Chad – Proceedings of the ASIS Annual Meeting, 1999
Reviews the characteristics of the Cheshire II system that is being used to implement full-text and fielded searching of bibliographic information for the University of California Berkeley Digital Library Initiative. Examines its performance when applied to a collection of large full-text documents in the TREC Interactive Retrieval Track and its…
Descriptors: Academic Libraries, Computer System Design, Document Delivery, Higher Education
The Decline of Subject Searching: Long-Term Trends and Patterns of Index Use in an Online Catalog.
Peer reviewed Peer reviewed
Larson, Ray R. – Journal of the American Society for Information Science, 1991
Describes a study that used transaction log analysis to investigate the use of subject searching in the University of California's Online Union Catalog, MELVYL. Mathematical models of trends and patterns in the data are presented, problems with subject searching are explained, and remedies to subject searching problems are suggested. (62…
Descriptors: Academic Libraries, Data Analysis, Higher Education, Library Catalogs
Cheshire II: Design and Evaluation of a Next-Generation Online Catalog System.
Larson, Ray R.; And Others – Proceedings of the ASIS Annual Meeting, 1995
Describes the system architecture and user evaluation tools for Cheshire II, an online catalog and full-text information retrieval system being developed at the University of California, Berkeley, that uses advanced information retrieval techniques to overcome the problems of topical searching in online catalogs, search failure, and information…
Descriptors: Academic Libraries, Computer System Design, Evaluation Methods, Full Text Databases
Evaluation of Advanced Retrieval Techniques in an Experimental Online Catalog.
Peer reviewed Peer reviewed
Larson, Ray R. – Journal of the American Society for Information Science, 1992
Discusses subject searching problems in online library catalogs; explains advanced information retrieval (IR) techniques; and describes experiments conducted on a test collection database, CHESHIRE (California Hybrid Extended SMART for Hypertext and Information Retrieval Experimentation), which was created to evaluate IR techniques in online…
Descriptors: Classification, College Libraries, Databases, Evaluation Methods