Discusses how hypermedia interfaces can use graphic design and language to help users of hypermedia programs to structure a cognitive approach to information retrieval. Argues that such interfaces should acknowledge the medium's limits, identify authorship levels, define a program model, provide overviews, and narrow the navigation functions. (SR)

Discusses the traditional alphabetical arrangement of library card catalogs and suggests this order should be reconsidered in online catalogs. Online searching in library catalogs is described; the ordering of records in online catalogs is examined; and filtering is considered as a method to order retrieved sets of bibliographic records. (Contains…

Discussion of virtual reality (VR) focuses on the promise that VR offers for information systems by describing current systems which use VR and by projecting possible developments for the future. Types of information problems which could be helped by VR are considered, as well as those that could not be helped. (Contains 13 references.) (LRW)

Describes a study that investigated how CEOs (Chief Executive Officers) in the Canadian publishing and telecommunications industries acquire and use information about the business environment. Topics discussed include environmental scanning; perceived environmental uncertainty; information sources; information use in decision making; and a…

Presents an overview of issues concerning civilian competitive intelligence (CI). Topics discussed include competitive advantage in academic and research environments; public domain information and libraries; covert and overt competitive intelligence; data diversity; use of the Internet; cooperative intelligence; and implications for library and…

Proposes that topic representations should consist of excerpts from domain thesaurus, generated by spreading activation technique. Algorithm for generating excerpts is outlined and exemplified, and problem of assessing resemblance between two excerpts is discussed. Whether existing thesauri are adequate for this purpose is questioned, and ideas…

Two articles discuss the clustering of composite representations in the Cystic Fibrosis Document Collection from the National Library of Medicine's MEDLINE file. Clustering is evaluated as a function of the exhaustivity of composite representations based on Medical Subject Headings (MeSH) and citation indexes, and evaluation of retrieval…

Describes a new text analysis approach to automate the indexing process, i.e., an automated keywording system designed to behave as a human expert indexer, and explains the rule base of the approach, which consists of lists of insertion and deletion rules generated by subject matter experts. (32 references) (Author/SD)

Describes research and evaluation on the Information Mapping method of structured analysis and writing of training and reference documents to illustrate how a flaw in research design can cause "little or no effect" results. Information retrieval experiments, learning experiments, and field tests are examined for problems, including size…

Discussion of the solicitation and measurement of relevance judgments focuses on a study of faculty and doctoral students at the University of Michigan that examined how users' judgments of document representations changed as more information about the documents was revealed to them. The use of magnitude estimation techniques is also discussed.…

Describes a collaborative, reuse hypertext system, called MUCH (Many Using and Creating Hypertext). The novel browsing and retrieval characteristics of the system are based on a semantic net connecting documents, thesauri, and discussions. Word patterns are documented for reuse, creating and reorganizing network traversal according to user…

Introduces the multicharacter trie as an index structure that can improve the time needed for retrieving full-text materials stored on CD-ROMs. The advantages of this structure compared to other structures are described, and experimental results comparing it to the widely used B+ tree and other structures used for full-text retrieval are…

The implementation and evaluation of a computer-based kanji finder developed on a Macintosh using HyperCard is reported. In a comparison study, the electronic kanji finder resulted in more effective retrieval than traditional retrieval using reference books. (18 references) (Author/LB)

Describes a low-cost, upgradeable, CD-ROM network and gives a step-by-step description of the installation process, including inventorying assets, learning about network components, selecting a network, installing adapter boards, attaching cabling, installing software, testing, configuring the server, installing search software, installing a menu,…

Discussion of online searching focuses on the first three of seven stages of searching: (1) the reference interview, including user needs, the search request, and the user's expectations; (2) the tactical overview, including institutional control and cost and time factors; and (3) database selection considerations, including relevance,…