This is a progress report on a project attempting to design a system of compacting text for storage appropriate to disc oriented demand searching. After noting a number of previously designed methods of compression, it offers a tentative solution which couples a dictionary of most frequent character-strings with a set of variable-length codes. The…

A timed comparison was made of two methods of searching. Five bibliographic searchers timed themselves while searching by possible main entries in the National Union Catalog. The authors then timed themselves searching the same items by title in the English Language Books by Title and in Library of Congress National Program for Acquisitions and…

The chair of scientific information at the Leningrad State Institute of Culture has worked out a preliminary syllabus on informatics for the Technical Libraries Department. The syllabus comprises the following topics: Informatics as a scientific discipline, Organization of information work, Information provision techniques, Information retrieval…

The computer language FOL is intended to facilitate the implementation of file organizations for information storage and retrieval systems. In many information storage and retrieval applications the designer, initially, does not know how best to organize a data base for efficient retrieval and ease of updating and modifying. It is felt that FOL…

The Uniterm system of coordinate indexing, developed by the Armed Services Technical Information Agency, provides a method for the organization, storage, and retrieval of information. The contents of reports are analyzed, and terms are assigned to the documents. For each term there is a card upon which the accession number of documents assigned…

The Nuclear Safety Information Center (NSIC) is a highly sophisticated scientific information center operated at Oak Ridge National Laboratory (ORNL) for the U.S. Atomic Energy Commission. Its information file, which consists of both data and bibliographic information, is computer stored and numerous programs have been developed to facilitate the…

The basic objective of the electronic dial access information retrieval system (DAIRS) is to serve individual students in semi-private listening or viewing situations with a kind of "non-book" library resource almost instantaneously available at the student's option. DAIRS represents the combination of two long established communications…

The work reported is part of a series of studies aimed at providing information and assistance to the National Library of Medicine (NLM) in planning the Biomedical Communications Network (BCN). The first part reviews the literature on systems relevant to BCN design, documents System Development Corporation's position with respect to certain…

If an information system is to survive, the users must be satisfied that it meets their needs promptly and consistently. It is essential to react quickly to any undesired result such as an extemely high or low output, too low a relevance or recall, or both. The search editor should feel responsbile not only for the profile setup but also for its…

The VID-R (Visual Information Display and Retrieval) system that enables computer-aided analysis of visual records is composed of a film-to-television chain, two videotape recorders with complete remote control of functions, a video-disc recorder, three high-resolution television monitors, a teletype, a PDP-8, a video and audio interface, three…

MLISP (meta-LISP) is a high level list-processing and symbol-manipulation language based on the programing language LISP (List Processor). MLISP programs are translated into LISP programs and then executed or compiled. MLISP exists for two purposes: (1) to facilitate the writing and understanding of LISP programs; (2) to remedy certain important…

The unclassified and unlimited bibliography compiles references dealing specifically with the role of computers in information sciences. The volume contains 239 annotated references grouped under three major headings: Artificial and Programming Languages, Computer Processing of Analog Data, and Computer Processing of Digital Data. The references…

This document is a study of the processing of questions input to computerized question-answering system such as the RAND Relational Data File. The process consists of (1)transforming the natural-language question into a symbolic question (i.e., a certain formula of predicate calculus) and (2)generating the answer by calculating the value set of…

This unclassified-unlimited bibliography contains 183 references, with abstracts, dealing specifically with optical or graphic information processing. Citations are grouped under three headings: display devices and theory, character recognition, and pattern recognition. Within each group, they are arranged in accession number (AD-number) sequence.…

The document retrieval system at Coordinated Science Laboratory is implemented on a Control Data 1604 computer system. Recorded information from each source article includes 1) conventional bibliographic data such as authorship, author affiliation, title, year of publication, etc., 2) detailed bibliographic data from each of the cited references,…