The Computer Assisted Reference Locator (CARL) is a computer-based information retrieval system which uses coordinate indexing. Objectives established in designing the system are: (1) simplicity of reference query and retrieval; (2) ease of system maintenance; and (3) adaptability for alternative computer systems. The source documents input into…

A library specialist and a computer specialist were asked to collaborate to solve the problem of a growing and diversified in-house, technical library in a diversified agribusiness organization. A computer program was written to: (1) generate alphabetical catalogs of collections; (2) index documents by uniterms; and (3) to retrieve documents by…

A description of a retrospective document retrieval system is given in which equifrequent fragments are used as language elements for compression coding and retrieval. The critical parameters governing the system are identified, and restrictions imposed by the parameters on the selection of fragments are outlined. Changes necessary in 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.…

Two programs addressed the development of information retrieval systems useful to a variety of users. One program was designed to examine aspects of indexing and information display. Experiments with different indexing and display systems revealed that for good relevance judgements, a display with full citation, keyboards, and abstract is…