Online bibliographic and network-based information systems are starting to blur the boundaries that separated print documents. Two concepts emerge as a consequence: the union record, an entity that combines multiple catalog records for a single bibliographic item; and an information dossier, a hypertext-like information object built by linking…

Discusses the development of multiobject databases called large data constructs (LDC), which may contain images and recorded or synthesized voice as well as text. Virtual reality and cyberspace are discussed, selectivity and database content are examined, database management systems are described, and retrieval options are reviewed. (three…

Proposes a new learning algorithm to improve the retrieval effectiveness of the search system used in the hypertext environment using an extended Boolean model with links to improve the ranking of retrieved items. Highlights include the basic retrieval scheme, the learning scheme, and a review of basic probabilistic retrieval models. (Contains 32…

This paper examines the main issues in hypermedia navigation, proposes research questions, and suggests a methodology for resolving those questions. The paper begins with an overview of navigation and a discussion of design issues in hypermedia databases, including being lost in hyperspace, the use of hypermaps, proper balance between links and…

A project developed a computerized data file of essential vocabulary, signs, and illustrations to be used to train deaf or hearing-impaired adults. Project activities included the following: designing a data entry and retrieval system for the project; identifying the interactive vocabulary most needed by deaf employees and their co-workers;…