NotesFAQContact Us
Collection
Advanced
Search Tips
What Works Clearinghouse Rating
Showing 2,386 to 2,400 of 2,728 results Save | Export
Peer reviewed Peer reviewed
Cudeck, Robert; And Others – Psychometrika, 1993
An implementation of the Gauss-Newton algorithm for the analysis of covariance structure that is specifically adapted for high-level computer languages is reviewed. This simple method for estimating structural equation models is useful for a variety of standard models, as is illustrated. (SLD)
Descriptors: Algorithms, Analysis of Covariance, Computer Software, Equations (Mathematics)
Peer reviewed Peer reviewed
Freedman, David A.; And Others – Evaluation Review, 1993
Techniques for adjusting census figures are discussed, with a focus on sampling error, uncertainty of estimates resulting from the luck of sample choice. Computer simulations illustrate the ways in which the smoothing algorithm may make adjustments less, rather than more, accurate. (SLD)
Descriptors: Algorithms, Census Figures, Computer Simulation, Error of Measurement
Peer reviewed Peer reviewed
Tauchert, Wolfgang; And Others – Online Review, 1991
Describes the PADOK-II project in Germany, which was designed to give information on the effects of linguistic algorithms on retrieval in a full-text database, the German Patent Information System (GPI). Relevance assessments are discussed, statistical evaluations are described, and searches are compared for the full-text section versus the…
Descriptors: Abstracts, Algorithms, Bibliographic Databases, Comparative Analysis
Peer reviewed Peer reviewed
Johnston, Mark; Weckert, John – Information Technology and Libraries, 1990
Describes the development of an expert system to help in the selection of materials for academic libraries. A model of selection criteria is explained, computerization of the model is discussed, user-defined criteria are considered, and machine learning of rules through the use of algorithms is described. (18 references) (LRW)
Descriptors: Academic Libraries, Algorithms, Evaluation Criteria, Expert Systems
Peer reviewed Peer reviewed
Schliemann, Analucia Dias; And Others – Journal of Mathematical Behavior, 1993
A 14-year-old Brazilian boy in the fourth grade was given 170 problems orally, each asking for the sum of 2 2-digit numbers. Responses indicated he had invented his own algorithm for addition, similar to the school one, based largely on his experiences with money. (Contains 13 references.) (JAF)
Descriptors: Addition, Algorithms, Case Studies, Computation
Peer reviewed Peer reviewed
de Berg, Kevin C. – Science and Education, 1992
Discusses the use of a historical profile for illustrating the significance of the mathematical components of scientific laws. Addresses the need for the purposive use of scientific laws rather than the blind substitutionary procedures characteristic of most problem solvers. Claims the approach has the potential for increasing female participation…
Descriptors: Algorithms, Elementary Secondary Education, Interdisciplinary Approach, Mathematics
Peer reviewed Peer reviewed
Kostoff, R. N.; Eberhart, Henry J.; Toothman, Darrell Ray – Journal of the American Society for Information Science, 1999
Database Tomography (DT) is a textual database-analysis system consisting of algorithms for extracting multiword phrase frequencies and proximities from a large textual database, to augment interpretative capabilities of the expert human analyst. Describes use of the DT process, supplemented by literature bibliometric analyses, to derive technical…
Descriptors: Algorithms, Bibliometrics, Computer Oriented Programs, Data Analysis
Peer reviewed Peer reviewed
Pagni, David L.; Shultz, Harris S. – Mathematics Teaching in the Middle School, 1999
Presents a problem that requires solving a card problem by exploring patterns that will lead to a logical solution. Involves students in developing and analyzing their own algorithms as well as discussing their reasoning with peers. (ASK)
Descriptors: Algorithms, Elementary Education, Junior High Schools, Mathematics Activities
Peer reviewed Peer reviewed
Frants, Valery I.; And Others – Journal of Information Science, 1996
Describes an approach to the design and implementation of an information retrieval system capable of providing an optimal search for each individual user based on the properties of information need. An algorithm is proposed for organizing optimal search in the systems realizing SDI (selective dissemination of information). (Author/LRW)
Descriptors: Algorithms, Computer System Design, Information Needs, Information Retrieval
Dimitrov, Dimiter M. – 1994
An approach is described that reveals the hierarchical test structure (HTS) based on the cognitive demands of the test items, and conducts a linear trait modeling by using the HST elements as item difficulty components. This approach, referred to as the Hierarchical Latent Trait Approach (HLTA), employs an algorithm that allows all test items to…
Descriptors: Algorithms, Cognitive Processes, Difficulty Level, Higher Education
Gratch, Jonathan; DeJong, Gerald – 1992
In machine learning there is considerable interest in techniques which improve planning ability. Initial investigations have identified a wide variety of techniques to address this issue. Progress has been hampered by the utility problem, a basic tradeoff between the benefit of learned knowledge and the cost to locate and apply relevant knowledge.…
Descriptors: Algorithms, Artificial Intelligence, Comparative Analysis, Computer System Design
Kenney, Margaret J., Ed.; Hirsch, Christian R., Ed. – 1991
This yearbook provides the mathematics education community with specific perceptions about discrete mathematics concerning its importance, its composition at various grade levels, and ideas about how to teach it. Many practical suggestions with respect to the implementation of a discrete mathematics school program are included. A unifying thread…
Descriptors: Algorithms, Computer Uses in Education, Elementary Secondary Education, Graphs
Halavin, James; Sommer, Charles – 1990
Hypertext and its more advanced form Hypermedia represent a powerful authoring tool with great potential for allowing statistics teachers to develop documents to assist students in an algorithmic fashion. An introduction to the use of Hypertext is presented, with an example of its use. Hypertext is an approach to information management in which…
Descriptors: Algorithms, Authoring Aids (Programing), Computer Assisted Instruction, Computer Software Development
Muraki, Eiji – 1984
This study examines the application of the marginal maximum likelihood (MML) EM algorithm to the parameter estimation problem of the three-parameter normal ogive and logistic polychotomous item response models. A three-parameter normal ogive model, the Graded Response model, has been developed on the basis of Samejima's two-parameter graded…
Descriptors: Algorithms, Data Analysis, Estimation (Mathematics), Goodness of Fit
Morrow, Jean – 1990
This paper discusses the results of questionnaires sent to principals and teachers on the subject of manipulatives, computer, and calculator availability and use in the classroom. The study was done in order to develop a better understanding of teachers' inservice needs. Results of the study include: (1) most teachers have at least some…
Descriptors: Algorithms, Calculators, Computer Uses in Education, Elementary Education
Pages: 1  |  ...  |  156  |  157  |  158  |  159  |  160  |  161  |  162  |  163  |  164  |  ...  |  182