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Desai, B. C.; And Others – Journal of the American Society for Information Science, 1986
Presents data model based on text data model (TDM), universal relation model, and nonfirst normal form (NFNF) relations, and discusses applicability to text processing and document retrieval systems. Highlights include database technology applied to information retrieval, NFNF and universal relation, and TDM integration with NFNF universal…
Descriptors: Computer Oriented Programs, Databases, Information Retrieval, Information Systems
McArthur, David; And Others – 1988
Described is the notion of multiple alternative representations of mathematical reasoning, particularly as they relate to algebraic notation and the potential of computers to change representations. Features of a desirable notation for algebraic problem solving are described. This is followed by a description of the RAND Corporation's intelligent…
Descriptors: Algebra, Computer Graphics, Computer Oriented Programs, Educational Technology
Buhr, Dianne C.; Algina, James – 1986
The focus of this study is on the estimation procedures implemented in BILOG, a computer program. One purpose is to compare the item parameter estimates produced by various procedures available in BILOG. Four different models are used: the one, two, and three parameter model and a three parameter model with common guessing parameters. The results…
Descriptors: Ability, Bayesian Statistics, Comparative Analysis, Computer Oriented Programs
Richardson, Jacques, Ed. – 1984
The 21 essays in this two-part book provide conceptual and operational understanding of the nature of models as representations of reality and as tools for description, analysis, interpretation, and forecasting. Topic areas addressed in part 1 (concept) include: the nature of models; the earth as a system; the determination of form; some…
Descriptors: Computer Oriented Programs, Ecology, Economics, Elementary Secondary Education
Weiss, David J., Ed. – 1985
This report contains the Proceedings of the 1982 Item Response Theory and Computerized Adaptive Testing Conference. The papers and their discussions are organized into eight sessions: (1) "Developments in Latent Trait Theory," with papers by Fumiko Samejima and Michael V. Levine; (2) "Parameter Estimation," with papers by…
Descriptors: Achievement Tests, Adaptive Testing, Branching, Computer Assisted Testing
Bernhardt, Victoria L.; And Others – 1983
The issues of achieving school desegregation and providing programs for students with special needs, while at the same time facing enrollment declines, have forced school administrators to improve techniques for projecting demand. This paper describes a new procedure that combines forecasting of enrollments and management of facilities and that…
Descriptors: Attendance, Computer Oriented Programs, Declining Enrollment, Educational Facilities Planning