The following topics are included in this document: (1) evaluation of plans for implementation of new systems; (2) macroevaluation of document retrieval systems; (3) microevaluation of retrospective searching; (4) evaluation of document acquisition functions; evluation of indexing and indexing languages; (5) evaluation of document screening; (6)…

Three specific contributions to the field of information retrieval are presented. The first two describe the establishment of an adaptive, interactive man-machine dialogue that produces a form of unsolicited librarian-like assistance for the user in his selection of index terms to characterize an indexing function. The data set upon which the…

A description is provided of GUIDE-0, an experimental information system. The system serves as a bibliographic aid for students who are taking introductory computer science courses whose material is at least partially implemented via PLATO-IV lessons. Following a brief introduction to the system in Chapter I, the second Chapter describes the…

Discusses future of online information retrieval systems in terms of types of computer hardware expected (noting size, memory, cost, microcomputers, peripherals); software expected; "user friendly" interfaces designed to enable users to search without special training; and new approaches to subject analysis and online searching.…

Reports on the Johnson Space Center Film Repository and describes the collection and development of its strategy to automate image access. The advantages and problems of a visual thesaurus are explained. (EAM)

Review of the 1991 literature on subject access in online systems discusses users and subject searching; subject access in online catalogs, including improvement of the database, search processing, the user interface, and user understanding; subject cataloging and indexing; information retrieval; thesaurus and indexing approaches; classification;…

Discusses knowledge acquisition and dissemination in a network environment. Obstacles to the electronic exchange of knowledge and functional requirements for knowledge acquisition, dissemination, and management are summarized. A prototype intelligent Internet interface that mediates knowledge acquisition and dissemination and preliminary test…

Describes the latest modifications being made to OASIS, a front-end enhancement to the University of California's MELVYL online union catalog. Highlights include the X Windows interface; multiple database searching to act as an information network; Lisp implementation for flexible data representation; and OASIS commands and features to help…

Describes the system architecture of an intelligent Web-based education system that includes user modeling agents, information filtering agents for automatic information gathering, and the multi-agent interaction. Discusses information management; user interaction; support for collaborative peer-peer learning; implementation; testing; and future…

REACTIONS OF A USER POPULATION (SCIENTISTS/ENGINEERS AND LIBRARIANS) TO AN OPERATIONAL TEST OF AN ON-LINE SYSTEM FOR RETRIEVING DOCUMENT CITATIONS (RECON) WERE STUDIED AT SEVERAL NASA FACILITIES. DURING A TWO MONTH OPERATIONAL TEST PERIOD, DATA WERE COLLECTED REGARDING FREQUENCY OF USAGE AND DEGREE OF SUCCESS ENCOUNTERED IN CONDUCTING ON-LINE…

The trend toward on-line utilization of computers in recent years has included the emergence of computer support systems to fill the information processing needs of individuals engaged in scientific research. In this study, a new approach to document description is applied to the design of a personal information storage and retrieval system,…

A description of the system used by Space Documentation Service (SDS) to disseminate combined and accumulated knowledge, as widely as possible, throughout Europe is given. The RECON network, with the full support of NASA, has gradually been extended so that centers in Member States, may, by installing their own terminals, have direct access to the…

Describes the components and capabilities of expert systems, discusses the use of such systems in library information applications, and outlines research being done in this area. A project aimed at the development of an expert system for referral services is described in detail, and implications for future research are discussed. (CLB)

Reports on the Online Catalog Public Access Project, a survey of users and nonusers in 31 U.S. libraries conducted for the Council on Library Resources. Characteristics of users, tasks, library setting, and system interface that affect user satisfaction are identified. A 25-item bibliography and user questionnaire are appended. (7 references) (EJS)

Discusses impact of three selected command language facilities (positional or free text operations, crossfile searching, term frequency analysis--ZOOM) on the man-system interface in relation to operational online information retrieval (IR). A cognitive IR model, searchers' knowledge structures, and searching with different types of command…