Researchers make little or no use of formal information systems. This is due, not so much to 'information apathy' on their part, as to faults inherent in information services as a whole. A formal information service may not come through at all. It is not capable of reaching behind a request to the real question that motivated it. By not being able…

A description is provided of a conceptual model for a data secure system. The discussion first offers a formal working vocabulary and next, using the intuitive idea of a dichotomy between permissible and impermissible accesses, formalizes the idea with an Extended Logical Data Base and with protection specifications and patterns. These…

Rooted binary trees with weighted nodes are structures encountered in many areas, such as coding theory, searching and sorting, information storage and retrieval. The path length is a meaningful quantity which gives indications about the expected time of a search or the length of a code, for example. In this paper, two sharp bounds for the total…

The publication of papers describing activity in computer-based storage and retrieval and geoscience information has continued at a vigorous pace since release of the last bibliography, which covered the period 1946-69 (ED 076 203). A total of 211 references are identified, nearly all of which were published during the three-year period 1970-72…

The subject of access control mechanisms in computer systems is concerned with effective means to protect the anonymity of private information on the one hand, and to regulate the access to shareable information on the other hand. Effective means for access control may be considered on three levels: memory, process and logical. This report is a…

A description is provided for WISE-ONE, an information retrieval program designed to provide fast, efficient access to computer-based information files. The author focuses upon WISE-ONE's application to the Educational Resources Information Center's (ERIC) data base; WISE-ONE was designed specifically to meet the needs of researchers using ERIC,…

Libraries, as well as larger information networks, are necessarily based upon the storage of information files consisting in many cases of written materials and texts such as books, serials, abstracts, manuscripts and archives. At the present stage of the "information explosion" no librarian can afford to ignore the contribution of…

There is a great temptation not to talk about information networks for the legal profession because there exists a well organized publishing industry meeting the historical and contemporary research needs in areas of statutory and case law, and even for administrative regulations. This is an information network. There also exists a strong, closely…

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…

In setting out to design a system of cataloging, or to evaluate a given system, or to apply a system in effect, it is necessary to begin with a clarification of the ends which the product of cataloging - that is, the catalog - is to serve in the library. To contribute to an understanding of these ends, the present study considers the role of the…

The design of an English-like query language and an interactive computer environment for searching the full text of the U.S. patent collection are discussed. Special attention is paid to achieving a transparent user interface, to providing extremely broad search capabilities (including nested substitution classes, Kleene star events, and domain…

Instead of instructions residing in the main memory as in a fixed instruction computer, a micro-programable computer has a separete read-only memory which is alterable so that the system can be efficiently adapted to the application at hand. Microprogramable computers are faster than fixed instruction computers for several reasons: instruction…

The Draft Report of the Joint Ad Hoc Subcommittee on Regional Computing Centres of the Committee of Presidents of Universities of Ontario made a tentative recommendation that a regional computer center should be developed for the use of Ontario universities. However, on further investigation it was found that such a computer center would be…

The current library environment is first examined, and an attempt is made to explain why the standard approaches to the library problem have been less productive than had been anticipated. A new design is then introduced for modern library operations based on a two-fold strategy: on the input side, the widest possible utilization should be made of…

Textbooks currently in use in courses on information science are listed in this bibliography under the following headings: Information storage and retrieval, Information systems, Information theory, Behavioral sciences, and Basic books. Some of the entries in each category contain evaluative annotations by the author, while others have only the…