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…

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)

Reports on a series of programs that have been developed to process data bases, consisting of textual items, and to index and arrange (classify) the data items in accordance with an automatically generated classification system. (Author)

The characteristics of the Intrex subject/title inverted file are analyzed. Basic statistics of the inverted file are presented including various distributions of the index words and terms from which the file was derived, and statistics on stems, the file growth process, and redundancy measurements. A study of stems both with extremely high and…

INDEX, an interactive retrieval program developed at Pepperdine University, is described. It is easy to use and maintain, locates sources of information from a general description of the information needed, requires only a modest investment of time, and is widely applicable. (MLW)

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…

This report on the multidisciplinary PASCAL database describes the files and the indexing rules for chemistry, biology, and medicine. PASCAL deals with all aspects of chemistry within two subfiles whose combined yearly growth is about 100,000 references. The Biopascal file, organized in the two subfiles of Plant Science and Biology and Medicine,…

Based on material collected for system-automation studies within the efforts of the Linguistic Documentation Program toward development of a Language Information Network and Clearinghouse System (LINCS), the bibliography lists 216 references under the headings: (1) Survey, Reviews, Symposia (19 references); (2) File-organization Principles (18…

The report summarizes work done in the study of measures for the effectiveness of the performance of large file systems. It consists of six sections: An "Introduction and Summary" which describes the background for the study, the approach taken in it, and summarizes the results; A discussion of the "Forms of Input", which characterizes the basic…

Review of office filing facility filing and retrieval mechanisms for unstructured and mixed media information focuses on free text methods. Also discussed are the state of the art in handling voice and image data, problems with searching text surrogates to implement free text content retrieval, and work of Project Minstrel. (Author/MBR)

The Association of Information Dissemination Centers (ASIDIC) formed the Cooperative Data Management Committee to address the problems of information center operators and data base suppliers. The number of operating centers in the U.S. is limited and their future expansion in numbers and in type of services, will depend on the education of users.…

Questions of the automation of input, output and data processing on computers in systems of information services are covered in the discussion of peculiarities of applied computers and processed information, general characteristics of processing algorithms and problems of information input and output. This is followed by a discussion of the…

A computer-based information storage and retrieval system was designed and implemented for processing Navy neuropsychiatric case history reports. The system design objectives were to produce a dynamic and flexible medical information processing tool. The system that was designed has been given the name NAVY MEDical Information STorage and…

This report describes how vocabulary and thesaurus techniques can be applied to a user-oriented computerized data handling system. An analysis is presented of the specialized problems associated with the development of vocabularies and rules for regulating their usage. The report consists of glossaries of action verbs and nouns accompanied 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…