Describes results of a study of transaction logs from three university libraries' online catalogs that analyzed subject queries to determine the extent to which they matched subject headings in the Library of Congress Subject Headings (LCSH). Computer and manual analyses are described, and user satisfaction with LCSH matches is considered. (14…

Describes ANLI (Adaptive Network Library Interface), an interface to an academic library's online catalog that links documents through interactions with users. Topics addressed include relation to neural networks; system design issues, including network management; the architecture of the ANLI; and the ANLI as a research tool. (Contains five…

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…

Presents preliminary findings of a study that developed descriptions of the behaviors and underlying cognitive processes observed during information retrieval interactions. Data from talk-aloud protocols and postsearch interviews from users of online public access catalogs in academic libraries are examined. (20 references) (LRW)

Presents preliminary data that characterizes the relationship between what users say they are trying to accomplish when using an online public access catalog (OPAC) and their perceptions of what input to give the system. Human-machine interaction is discussed, and appropriate methods for evaluating information retrieval systems are considered. (18…

Describes the latest modifications being made to OASIS, a front-end enhancement to the University of California's MELVYL online union catalog. Highlights include the X Windows interface; multiple database searching to act as an information network; Lisp implementation for flexible data representation; and OASIS commands and features to help…

Reports on an empirical study of how end-users utilize an online bibliographic information system available on the World Wide Web by analyzing the use of a union catalog of academic libraries in Norway. Discusses how hypertext links affect search behavior and considers individual differences in search behavior and problem solving. Interview…

Describes the design and development of the Mercury Electronic Library Project at Carnegie Mellon University that resulted in a library information system that provides access to the library's online catalog as well as to other databases. The distributed architecture of the system is explained, and future plans are discussed. (two references) (LRW)

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…

Describes the design of a prototype adaptive online catalog that was implemented as a transparent workstation-based front end system to MELVYL, the online catalog for the University of California libraries. Problems with searching bibliographic retrieval systems are reviewed, including irrelevant retrievals and the inexperience of most users.…

Results are reported from a study that investigated the extent to which academic library end users conducted multiple search sessions with online public access catalogs or CD-ROM databases at different stages of their information seeking related to a research project. Implications for training, retrieval systems design, and further research are…