Describes an automatic display system which has been developed for the editing of concept subnetworks within a relational index and which employs only a floppy diskette drive and a PET 2001 microcomputer. Appendices on Farradane's Nine Relations and on the Graphic Editing System Commands and a reference list are included. (Author/JL)

This discussion of the general principles of structure and construction of numeric databases introduces the concept of data points, their relationship to each other, and their storage in a nonredundant way. The collection of numeric data and their integration into the database structure are explained. Eight references are cited. (EJS)

Demonstrates the property of inclusiveness of document retrieval systems where documents are indexed by unweighted terms and in which query search patterns are Boolean functions of descriptors and presents three methods for determining a partial ordering on a set of system responses to these queries. Eleven sources are listed. (FM)

Describes a study evaluating the effectiveness of the Information Retrieval, Ltd. (IRL) Life Sciences Collection database in a field where BioSciences Information Service (BIOSIS) claims to offer comprehensive coverage of the international literature. The two databases are described, and the depth of controlled indexing is compared for the two

Notes applications of information technology in archival activity, highlighting computer use in management of records centers and archives, intellectual control including computer indexing and online retrieval, and preservation of machine-readable records. Cooperative development of archival systems and impact of mini- and microcomputers are…

Analyzes the nature of Boolean information retrieval in relation to the discrete weights of query terms, examines assigned weights from an approach involving thresholds, and generates an evaluation mechanism which allows the user to attach a threshold to the query term. Thirteen references are listed. (FM)

Discusses the basic issues and practices in the administration of photographic collections, specifically with respect to the preservation of photographic materials, the organization of photographic files, and the cataloging of photographs under the Anglo American Cataloging Rules. An 18-item bibliography is included. (JL)

Uses an experimental system for authority control on a collection of bibliographic records to demonstrate the resemblance between thesaurus-based automatic indexing and automatic authority control. Details of the automatic indexing system are given, results discussed, and the benefits of the resemblance examined. Included are a rules appendix and…

Describes XMARC, a set of computer programs which provides students with a simplified means of writing programs for the automatic indexing of an experimental collection of MARC records. (Author/FM)

Describes an automatic method, based upon a text structure analysis and using a relatively small dictionary, to extract significant phrases from the title and the abstract of scientific and technical documents. The information representation of the document is discussed with relation to the construction of the document information retrieval…

Demonstrates that the process of comparing each document in an automated system with all others during the classification procedure may be avoided by the use of an inverted file. (FM)

Describes the implementation of a user-oriented online indexing system at the Boys Town Center's Library Services Division. (FM)

Responds to W. S. Cooper's article on utility-theoretic indexing (Journal of the American Society for Information Science, v29 n3) and posits that the method's claim to predictive success rests solely on its appeal to the consequences of decisions. (FM)

Answers Patrick Wilson's criticism of the theory of utility-theoretic indexing (Journal of the American Society for Information Science, v30 n3) and defends the theory on the basis of its analytic capability. (FM)

An on-line document retrieval system is described which combines a data base management system with automatic processing of natural language queries and abstracts. (Author)