Expands on existing concepts and notions regarding hypertext-based information retrieval. Topics include document characterization; characterization networks; query by navigation; navigation networks; and adding new links to the characterization networks with information about semantic relations. (LRW)

Describes WebClass, a system that allows Web users to create personalized conceptual data that is dynamically merged with original HTML source by a proxy server. Explains the creation of alternative views of Web pages, data modeling, and navigation; and describes two possible applications of the system, annotation and indexing. (Author/LRW)

Discusses access methods in hypermedia and information retrieval and describes a research project in which similarity measures have been extended to include imprecise matching over different dimensions of structured classification schemes. The semantic similarity of information units forms the basis for the automatic construction of links and is…

Describes the visualization of a navigation classification scheme in an information retrieval (IR) system. Highlights include Charles Cutter's rules for creating a dictionary catalog; user needs; an example of undergraduate research using this scheme; and user interaction with the IR system. (Contains 64 references.) (Author/LRW)

Explains the MEMOIR project (Managing Enterprise-scale Multimedia using an Open Framework for Information Re-use) that uses trails, open hypermedia link services and software agents to access and navigate information in Intranet environments to share technical information and find colleagues with similar interests. Presents results of evaluations…

Analyzed and compared the success and information seeking behaviors of seventh grade science students and graduate students in using the Yahooligans! Web search engine. Discusses cognitive, affective, and physical behaviors during a fact-finding task, including searching, browsing, and time to complete the task; navigational styles; and focus on…