WISE-ONE is a bibliographic information retrieval system which is designed to perform keyword searches of such data-bases as the ERIC RESUMAST and the ERIC CIJEMAST. Produced as a result of the search are the ERIC citation numbers, titles, authors, and, in the case of the journal file, the journal citation. Because WISE-ONE allows for nesting of…

Minimum, maximum, and average lengths and frequency counts for the data elements in the Chemical Substance and General Subject segments of the Standard Distribution Format (SDF) files distributed by Chemical Abstracts Service are presented. (5 references) (Authors)

An evaluation of graph theoretical clusters of index terms which can be extracted from an automatically indexed document collection, and the effects of employing such clusters in automatic document retrieval are described. (19 references) (Author)

The purpose of this small scale study was to make a preliminary assessment of the potential value of the ERIC data base for educators in Britain. On-line searches of the ERIC data base were conducted for a sample of fourteen users who were asked to comment on the relevance of retrieved materials. Results indicate that ERIC can provide access to…

With the number and types of documents in digital library systems increasing, tools for automatically organizing and presenting the content have to be found. While many approaches focus on topic-based organization and structuring, hardly any system incorporates automatic structural analysis and representation. Yet, genre information…

The transfer of information through space and time in communication systems is often accompanied by significant delays which give rise to meaningful storage problems. Mathematical models have been developed for the study of these kinds of problems which are applicable to the design of manual, library-type, or mechanized information storage and…

Since 1965 DSIS (Defense Scientific Information Service) has reproduced copies of microfiche documents received from outside sources for its customers. In 1970, in accordance with long-range plans to use microfiche as the back-up to an automated information retrieval system as a quick and inexpensive way of supplying reports identified by a…

False drops occur in a system of random superimposed coding for edge-notched, punched, and feature cards. Formulae for the false dropping fraction are derived, and figures and tables are given for the calculated values in the most popular scheme. (Author/LS)

Indexing and abstracting can be thought of as a way of modeling an actual document or textual item. Both are miniature versions of the actual thing. Normally, the indexing model is used to locate desired information, while the abstracting model is used as a screening medium to help the searcher decide which of the apparently correct actual items…

The research has contributed toward establishing a discipline of information science since it shows that fundamental principles dealing with communication exist and can be applied to pracitcal problems. Several courses and Ph.D. dissertations grew out of the research. (Author)

Response time of on-line document retrieval systems is analyzed. Linear and inverted file organizations are considered and their response times are evaluated. (Author)

Information mapping is a method of organizing categories of information and of displaying them for both learning and reference purposes. The method may be applied to the production of self-instructional books or to the organization of data bases for computer-aided instruction and reference. The report is itself written in modified information map…

A manual describing the RIC computer search program for retrieval of information from ERIC, CIJE, and other collections is presented. It is pointed out that two versions of this program have been developed. The first is for an IBM 360/370 computer. This version has been operational on a production basis for nearly a year. Four installations of…

A model of a generalized information storage and retrieval system is proposed. The model consists of six subsystems (or blocks): logical processor, selector, descriptor, file, locator, document file, and analysis block. These subsystems function in a partial environment defined by the user and data blocks. Proceeding from a verbal description, a…

Two systems, WLN and Ringcode, for retrieving structural information were analyzed qualitatively and evaluated for a series of chemical compounds. The studies ranged from specific to generic questions and also involved retrieval by fragments. Neither system was completely satisfactory for all types of searches. (6 references) (Author)