Research on cognitive modeling of information search and Web navigation emphasizes the importance of "information scent" (the relevance of semantic cues such as link labels and headings to a reader's goal; Pirolli & Card, 1999). This article shows that not only semantic but also structural knowledge is involved in navigating the Web…

Discusses data modeling techniques for the design of information systems and presents the idea of defining a kernel for object role modeling (ORM) techniques upon which different drawing styles can be based. Highlights include syntactical and semantic aspects of the ORM kernel; entity relationships; and the NIAM modeling technique. (50 references)…

Introduces a special issue on research on hypertext systems and information retrieval. Systems design aspects, including navigation models, link weighting, multiple representation techniques, automatic authoring, user modelling, varying levels of abstraction, and evaluation techniques are addressed. (EA)

Discusses and examines two approaches to concept-based retrieval of hypermedia information that improve a user's ability to navigate large systems--term indexing with semantically coupled thesauri and semantic hyperindexing. Visualization of index structures is discussed, and an example, the Cube of Contents retrieval model for the "Active…

Describes two experiments that investigated the influence of textual factors on the perception of bibliographic records. Topics include index descriptors; term overlap; extent of semantic distance; direction of semantic distance; generic trees of descriptors; relevance perception; and implications for the design of information retrieval…

Identifies problems that undergraduate searchers encountered in a search of the ERIC database on CD-ROM. Results of participant observation, questionnaires, and interviews are reported; a taxonomy of user problems is proposed that includes syntactic errors and semantic errors; and recommendations for menu selection systems, online help, and…