Discusses software design issues for Okapi, an information retrieval system that incorporates both search engine and user interface and supports weighted searching, relevance feedback, and query expansion. The basic search system, adjacency searching, and moving toward a distributed system are discussed. (Author/LRW)

Presents a proposed information environment (PROPIE) for enhanced interaction and value-adding of electronic documents that allows users multiple ways to query intuitively and navigate information in an electronic document. Highlights include user interface technologies; visualization and interactive techniques; query and browsing processes; and…

Presents a user-oriented interface for generalized informetric analysis and demonstrates how informetric calculations can be specified through advanced data modeling techniques. Topics include bibliographic data; online information retrieval systems; citation networks; query interface; impact factors; data restructuring; and multi-level…

Reviews the development of research and evaluation in information retrieval. Highlights include the Cranfield projects concerning recall and precision, the Medlars experiment that focused on relevance, TREC (Text Retrieval Conference), evaluation versus understanding, interface versus functionality, document length, and terms and user interaction.…

An overview of the development of CD-ROMs is presented. Aspects covered include changes in coverage, the use of CD-ROMs in libraries and information units, changes in search interfaces and growth in end-user searching, changes in CD-ROM publishers, and hardware and networking developments. (Author)

Discusses the use of transaction logging in Okapi-related projects to allow search algorithms and user interfaces to be investigated, evaluated, and compared. A series of examples is presented, illustrating logging software for character-based and graphical user interface systems, and demonstrating the usefulness of relational database management…