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Chen, Ruey-Shun; Hu, Yi-Chung – Journal of the American Society for Information Science and Technology, 2003
Discusses sequential patterns, data mining, knowledge acquisition, and fuzzy sequential patterns described by natural language. Proposes a fuzzy data mining technique to discover fuzzy sequential patterns by using the simple partition method which allows the linguistic interpretation of each fuzzy set to be easily obtained. (Author/LRW)
Descriptors: Algorithms, Data Analysis, Linguistics, Mathematical Formulas
Peer reviewed Peer reviewed
Hoenkamp, Eduard – Journal of the American Society for Information Science and Technology, 2003
Discusses latent semantic indexing (LSI) that would allow search engines to reduce the dimension of the document space by mapping it into a space spanned by conceptual indices. Topics include vector space models; singular value decomposition (SVD); unitary operators; the Haar transform; and new algorithms. (Author/LRW)
Descriptors: Algorithms, Information Retrieval, Mathematical Formulas, Models
Peer reviewed Peer reviewed
Bodoff, David; Wu, Bin; Wong, K. Y. Michael – Journal of the American Society for Information Science and Technology, 2003
Presents a preliminary empirical test of a maximum likelihood approach to using relevance data for training information retrieval parameters. Discusses similarities to language models; the unification of document-oriented and query-oriented views; tests on data sets; algorithms and scalability; and the effectiveness of maximum likelihood…
Descriptors: Algorithms, Information Retrieval, Mathematical Formulas, Maximum Likelihood Statistics
Peer reviewed Peer reviewed
Lopez-Pujalte, Cristina; Guerrero-Bote, Vicente P.; de Moya-Anegon, Felix – Journal of the American Society for Information Science and Technology, 2003
Discusses genetic algorithms in information retrieval, especially for relevance feedback, and evaluates the efficacy of a genetic algorithm with various order-based fitness functions for relevance feedback in a test database. Compares results with the Ide dec-hi method, one of the best traditional methods. (Contains 56 references.) (Author/LRW)
Descriptors: Algorithms, Comparative Analysis, Databases, Genetics
Peer reviewed Peer reviewed
Gorbunov, Andrey L. – Journal of the American Society for Information Science and Technology, 2002
Discusses how to improve the quality of Internet search systems and introduces the Ghosts Consensus Method which is free from the drawbacks of digital democracy algorithms and is based on linear programming tasks. Highlights include vector space models; determining relevant documents; and enriching query terms. (LRW)
Descriptors: Algorithms, Internet, Linear Programming, Mathematical Formulas