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Download full textGallagher, Leonard J.; Draper, Jesse M. – 1984
A tutorial introduction to data models in general is provided, with particular emphasis on the relational and network models defined by the two proposed ANSI (American National Standards Institute) database language standards. Examples based on the network and relational models include specific syntax and semantics, while examples from the other…
Descriptors: Computer Software, Databases, Information Retrieval, Information Storage
Hultgren, Jan; Larsson, Rolf – 1973
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…
Descriptors: Computer Programs, Data Processing, Databases, Information Processing
Claybrook, Billy G. – 1973
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…
Descriptors: Computer Programs, Databases, Information Processing, Information Retrieval
Schipma, Peter B.; And Others – 1971
The Information Sciences section of ITT Research Institute (IITRI) has developed a Computer Search Center and is currently conducting a research project to explore computer searching of a variety of machine-readable data bases. The Center provides Selective Dissemination of Information services to academic, industrial and research organizations…
Descriptors: Computer Programs, Databases, Information Retrieval, Information Storage
Scott, Heather – 1970
Described is a complete and technical description of one component of the Information System for Vocational Decisions (ISVD) total data storage and access system. Both a verbal and a graphic flow chart of its functions within the system are presented. (TL)
Descriptors: Career Guidance, Computers, Databases, Educational Technology
Barton, Ian J.; And Others – 1973
A novel text analysis and characterization method involves the generation from text samples of sets of variable-length character strings. These sets are intermediate in number between the character set and the total number of words in a data base; their distribution is less disparate than those of either characters or words. The size of the sets…
Descriptors: Computational Linguistics, Computer Programs, Content Analysis, Databases
Gaus, Wilhelm, Ed.; Henzler, Rolf, Ed. – 1977
The 13 papers collected here were presented at the Workshop on Data Documentation held at Reisenburg Castle, Federal Republic of Germany, in July 1975. This workshop was a first attempt to identify some of the problems in the field of data documentation, formulate them, and solve them as far as possible. The subject was approached from four…
Descriptors: Chemistry, Computer Oriented Programs, Confidentiality, Data
Association for Computing Machinery, New York, NY. – 1975
The papers and discussions of the 1975 Pacific Region meeting of the Association for Computing Machinery are presented. Topics included (1) the current and emerging state of the art in data management software and hardware, (2) relational systems with particular attention to new developments in systems for relational data bases, (3) advances in…
Descriptors: Computer Programs, Computer Science, Computer Storage Devices, Computers
