Discussion of models for indexing and searching information resources on the Internet focuses on the results of a simple query on a number of existing search systems and on two proposed index metadata structures for indexing and supporting search and discovery: the Dublin Core Elements List and the Semantic Header. (52 references) (Author/LRW)

Discusses similarities between newspapers and hypertext databases; describes VOIR (Visualization of Information Retrieval), a software prototype used as an electronic newspaper workbench; presents results of empirical evaluation; and suggests implications for hypertext and information retrieval. (Author/LRW)

Describes online misinformation: incomplete, out-of-date, biased information; pranks; contradictions; improperly translated data; software incompatibilities; unauthorized revisions; factual errors; and scholarly misconduct. Suggests online searchers should be skeptical, establish prior knowledge, distinguish between fact and opinion, evaluate…

Examines the processes that occur when a searcher searches for documents in a reference database, and what relationships exist between psychological descriptions of these processes and models from the domain of information retrieval. Highlights include associational psychological modeling; empirical testing; and information science and psychology.…

Discusses object-centered knowledge representation and information retrieval. Highlights include semantic networks; frames; predicative (declarative) and associative knowledge; cluster analysis; creation of subconcepts and superconcepts; automatic classification; hierarchies and pseudohierarchies; graph theory; term classification; clustering of…

This article provides an introduction to the Internet and the World Wide Web for individuals interested in using it to access resources concerning disabilities. It covers such aspects as getting connected, electronic mail, electronic discussion groups (mailing lists and usenet newsgroups), and information retrieval. An extensive list of resources…

Presents a five-part framework for an information infrastructure: (1) aggregating (digital storage); (2) organizing (imposing higher-level structure); (3) using (retrieval processes); (4) tool building (designing and developing technologies for steps 1-3); and (5) policy making (metadata, selection criteria, use policies). Applies the framework to…

Discusses the concept of information scent in a Web site, which is based on mental associations between concepts. Describes research in the field of human-computer interaction, including how humans locate information and semantic networks; and discusses navigation success, user testing, good links, and facet-based browsing. (LRW)

Explores inter-record linkage relationships of a bibliographic hypertext system through the use of descriptor term co-occurrences. Using term distribution and term exhaustivity data for an existing system, three models of term co-occurrence are developed and tested against the observed data. (Author/LRW)

Discussion of the use of information retrieval techniques for automatic generation of semantic hypertext links focuses on automatic text summarization. Topics include World Wide Web links, text segmentation, and evaluation of text summarization by comparing automatically generated abstracts with manually prepared abstracts. (Author/LRW)

Describes a prototype system for software documentation management called SLEUTH (Software Literacy Enhancing Usefulness to Humans) being developed at the University of Virginia. Highlights include information retrieval techniques, hypertext links that are installed automatically, a WAIS (Wide Area Information Server) search engine, user…

Describes the Konstanz Hypertext System which offers a domain-specific developmental environment for the construction of large hypertexts. Highlights include the integration of external information, and three examples: resource discovery of online databases, management of electronic mail, and the compilation of an electronic journal issue.…

Focuses on the user and human-computer interaction aspects of the research based on the Okapi text retrieval system. Three experiments implementing different approaches to query expansion are described, including the use of graphical user interfaces with different windowing techniques. (Author/LRW)

Discusses the importance of research on the use of mathematical, logical, and formal methods in information retrieval to help enhance retrieval effectiveness and clarify underlying concepts of information retrieval. Highlights include logic; probability; spaces; and future research needs. (Author/LRW)

Explains intelligent agents, special software tools that help make the Web more interactive by helping with information retrieval. Describes major types of agents, including search agents and agents for specialized tasks including monitors and knowledge management; and lists relevant Web sites. (LRW)