Article reports on a system for filing and accessing a personal collection of papers on educational technology. (Author)

Explores the properties of independent variables in information retrieval systems and defines a class of basic variables named M-factors. (Author/PF)

This report describes the PASCAL database, a machine readable version of the French abstract journal Bulletin Signaletique, which allows use of the file for (1) batch and online retrieval of information, (2) selective dissemination of information, and (3) publishing of the 50 sections of Bulletin Signaletique. The system, which covers nine…

This paper describes the characteristics of a computerized information retrieval system which could be used by attorneys engaged in such complex litigation as (1) cases which involve multi-district litigation; (2) cases involving complex issues of fact, as in regulatory agency actions; (3) cases involving a large number of documents; and (4) cases…

Guidelines for use of the Common Command Language (CCL) are briefly described in this report. The CCL was designed to combine functions of individual command languages available with databases on the interactive bibliographic retrieval system 3RIP. Conditions of user-system interaction are explained, with a list of user aids available. The 20…

To assist researchers, practitioners, and students in locating journal articles, books, papers, and reports relevant to all aspects of document design, the Document Design Project staff at Carnegie-Mellon University (CMU) is designing and building a computerized reference library using the operating system ZOG. The library will include material…

This document first outlines considerations relative to a systems approach to evaluation, and then argues for such an approach to the evaluation of information retrieval systems (ISR). The criterion of such evaluations should be the utility of the information retrieved to the user, and the ISR ought to be regarded as one of three interrelated…

This report presents the identification and definitions of subject oriented engineering and scientific disciplines and fields which are included in the EDIS Subject Categories. The discussion is extended to include the mix of subjects with other orientations, such as Item, Mission-Project, Expertise and Data Bank Categories. Sample queries are…

The file design of the search system part of an interactive search and editing system, 3RIP, is described. A scatter-stored and compact inverted file is used to search a primary file of up to 4 million records containing on the order of 10-E9 characters of text and numeric data. Searchable attributes are keywords, words or phrases in text, names,…

The Medical Literature Analysis and Retrieval System (MEDLARS) is described in detail including its indexing procedures, vocabulary, search strategies, products and services. This handbook also indicates the types of requests that are suitable for retrospective machine search in MEDLARS, and discusses the capabilities and limitations of the…

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…

The Design of Information Systems in the Social Sciences (DISISS) is a research project with the objective of carrying out research necessary for the effective design of information systems in the social sciences, whether by the creation of new systems or the modification of existing systems. This working paper explores the methods available for…