Describes an indexing technique based on overlapping word fragments as reference strings that are linked in a directed graph structure which makes possible exact match-, partial match-, and masked-partial match-retrieval and indicates search strategies for each case. Eight figures, two tables, and nine references are provided. (RBF)

TRIAL is an information processing system that will perform editing, indexing, and retrieval of textual and certain types of numeric information. The system allows for: (1) the creation and maintenance of a master file, (2) indexing on words designated as 'key' words or, alternatively, on every word in the text, excluding those common terms that…

Reviews the special requirements of a bibliographic database, and shows how they are met in the DOBIS-LIBIS (Dortmund Library System-Leuven Library System) system. Full authority file control over the indexes to the database is discussed, and the DOBIS-LIBIS system is described in detail. References are included. (Author/BK)

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…

The technical features and operational status of interactive information systems, i.e. those providing a conversational usage mode to a non-programer through a data terminal device, are reviewed. The review is designed to aid information specialists in the state-of-the-art assessments preparatory to a detailed system selection procedure. It…

Medsirch (Medical Search) is an information retrieval system designed to aid in preparing examinations for medical students. There are two versions of the system: a sequential access file suitable for shallow indexing with a broad choice of search terms and a random direct access file for deep indexing with a restricted range of choices for search…

Prepared for consideration by the Network Technical Architecture Group (NTAG), a subcommittee of the Library of Congress (LC) Network Advisory Group, this document describes the study and development of text formats for the message delivery system of a nationwide library bibliographic network. Following a discussion of network considerations of…

THE FIRST-GENERATION APPROACH BY CONCEPT (ABC) STORAGE AND RETRIEVAL METHOD, A METHOD WHICH UTILIZES AS A SUBJECT APPROACH APPROPRIATE STANDARDIZED ENGLISH-LANGUAGE STATEMENTS PROCESSED AND PRINTED IN A PERMUTED INDEX FORMAT, UNDERWENT A PERFORMANCE TEST, THE PRIMARY OBJECTIVE OF WHICH WAS TO SPOT DEFICIENCIES AND TO DEVELOP A SECOND-GENERATION…