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Wu, Xindong – Journal of the American Society for Information Science, 1998
Presents a heuristic, attribute-based, noise-tolerant data mining program, HCV (Version 2.0) based on the newly-developed extension matrix approach. Outlines some techniques implemented in the HCV program for noise handling and discretization of continuous domains; an empirical comparison shows that rules generated by HCV are more compact than the…
Descriptors: Algorithms, Computer System Design, Information Retrieval, Information Systems
Peer reviewed Peer reviewed
Frants, Valery I.; Shapiro, Jacob – Journal of the American Society for Information Science, 1991
Discussion of the problem of control in documentary information retrieval (IR) systems focuses on feedback mechanisms. Information needs are discussed, particularly the Problem Oriented Information Need (POIN); the structure of an adaptive IR system is described; and the design of algorithms for automated IR systems is explained. (33 references)…
Descriptors: Algorithms, Computer System Design, Documentation, Evaluation Methods
Peer reviewed Peer reviewed
Orwig, Richard E.; Chen, Hsinchun; Nunamaker, Jay F., Jr. – Journal of the American Society for Information Science, 1997
Describes research using an artificial intelligence approach in the application of a Kohonen Self-Organizing Map (SOM) to the problem of classification of electronic brainstorming output and an evaluation of the results. The graphical representation of textual data produced by the Kohonen SOM suggests many opportunities for improving information…
Descriptors: Algorithms, Artificial Intelligence, Brainstorming, Classification
Peer reviewed Peer reviewed
Couvreur, T. R.; And Others – Journal of the American Society for Information Science, 1994
Discusses the results of modeling the performance of searching large text databases via various parallel hardware architectures and search algorithms. The performance under load and the cost of each configuration are compared, and a common search workload used in the modeling is described. (Contains 26 references.) (LRW)
Descriptors: Algorithms, Comparative Analysis, Computer System Design, Cost Effectiveness
Peer reviewed Peer reviewed
Woodruff, Allison Gyle; Plaunt, Christian – Journal of the American Society for Information Science, 1994
Presents an algorithm that automatically extracts words and phrases containing geographic place names or characteristics from a text document and uses them as input to database functions that use spatial reasoning to approximate statistically the geoposition referenced in the text. Preliminary results and future work are discussed. (28 references)…
Descriptors: Algorithms, Automatic Indexing, Computer System Design, Evaluation
Peer reviewed Peer reviewed
Lynch, Clifford A. – Journal of the American Society for Information Science, 1988
Describes the unique reliability problems of very large databases that necessitate specialized techniques for hardware problem management. The discussion covers the use of controlled partial redundancy to improve reliability, issues in operating systems and database management systems design, and the impact of disk technology on very large…
Descriptors: Algorithms, Computer System Design, Database Management Systems, Databases