Discussion of data storage technology for multimedia materials highlights a new signature file method that divides files into variable-sized vertical frames to optimize response time using partial query evaluation. Real data experiments that tested the response time are reported, and future work is discussed. (Author/LRW)

Describes the Forest Science Data Bank that contains 2,400 data sets from over 350 existing ecological studies. Database features described include involvement of the scientific community; database documentation; data quality assurance; security; data access and retrieval; and data import/export flexibility. Appendices present the Quantitative…

Presents a technique for storing compound keywords with information about short and long component (SC and LC) keywords by extending Aho and Corasick (AC) string-pattern matching-machine for a finite number of keywords. Results for 38 Japanese text files reveal the extended AC machine is three to six times faster than the original AC machine in SC…

Business intelligence derived from data warehousing and data mining has become one of the most strategic management tools today, providing organizations with long-term competitive advantages. Business school curriculums and popular database textbooks cover data warehousing, but the examples and problem sets typically are small and unrealistic. The…

The objective of the unified database (UDB) program was to develop an automated information system that would be useful in the design, development, testing, and support of new Air Force aircraft weapon systems. Primary emphasis was on the development of: (1) a historical logistics data repository system to provide convenient and timely access to…

Representing both the public and private sectors, members of an ad hoc committee were charged by the Joint Committee on Printing of the U.S. Congress with evaluating the feasibility and desirability of providing access to federal government information in electronic formats to depository libraries. Appointed in May 1983, the committee was asked to…

The indexing and online searching of data bases have both conflicting and complementary structures, determined in part by the choice of indexing language. In the planning of a machine readable system, the Foundation Center, administrator of two data bases, initially chose a natural language for the lower cost, more rapid implementation, and…

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,…

This manual provides guidance in the use of the Integrated Library System (ILS), a library minicomputer system in which all automated library functions are processed against a single database. It is oriented toward ILS users with no ADP training or experience. Written in MUMPS, a higher-level language, the system includes the following…

The fifth volume in the SER-LARS (Special Education Resources Location Analysis and Retrieval System) series presents information on ways to measure SER-LARS learning objectives for which tests have not previously been available. Information is organized according to accession number and each entry is coded to the learning objective number.…

Privacy is defined and its various social implications discussed in the first part of this paper. The effect of a National Data Center (NDC) and computerized dossiers about people and their past is also considered. It is determined that a computerized information system would present at least four distinct problems to individual identity or…

The School District of Philadelphia has had a continuously maintained computerized data system for its 270,000 pupils since 1967. This paper outlines: the general procedures and descriptions of the file; the need for establishing a pupil data-base file; the systems products and services; its value to research and evaluation as well as to the…

The Occupational Shortages Reporting System (OSRS) is a computerized system developed to produce quick and accurate reports on occupational shortages for given time periods and given occupations in Texas. The system's salient features are: easy and fast retrievability of information; expandability of the data base (from the present 1,254…

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…

A subset of data base management techniques for the hardware/software functions necessary to support a management information system are discussed. Seven basic dimensions of data base design are: (1) data base life span, (2) logical record growth, (3) record content growth, (4) data set organization, (5) linkages, (6) design criteria and (7)…