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Chen, Hsinchun; And Others – Journal of the American Society for Information Science, 1995
This research reports an algorithmic approach to the automatic generation of thesauri for electronic community systems. The techniques used include term filtering, automatic indexing, and cluster analysis. The Worm Community System, used by molecular biologists studying the nematode worm C. elegans, was used as the testbed for this research.…
Descriptors: Abstracting, Abstracts, Automatic Indexing, Cluster Analysis
Peer reviewed Peer reviewed
Ramsey, Marshall C.; Chen, Hsinchun; Zhu, Bin; Schatz, Bruce R. – Journal of the American Society for Information Science, 1999
Discusses problems in creating indices and thesauri for digital libraries of geo-spatial multimedia content and proposes a scalable method to automatically generate visual thesauri of large collections of geo-spatial media using fuzzy, unsupervised machine-learning techniques. Uses satellite photographs as examples and discusses texture-based…
Descriptors: Electronic Libraries, Indexing, Maps, Multimedia Materials
Peer reviewed Peer reviewed
Chen, Hsinchun; Lally, Ann M.; Zhu, Bin; Chau, Michael – Journal of the American Society for Information Science and Technology, 2003
Discussion of the information needs of medical professionals and researchers focuses on the architecture of a Web portal designed to integrate advanced searching and indexing algorithms, an automatic thesaurus, and self-organizing map technologies to provide searchers with fine-grained results. Reports results of evaluation of spider algorithms…
Descriptors: Algorithms, Evaluation Methods, Indexing, Information Needs
Peer reviewed Peer reviewed
Chen, Hsinchun – Journal of the American Society for Information Science, 1995
Presents an overview of artificial-intelligence-based inductive learning techniques and their use in information science research. Three methods are discussed: the connectionist Hopfield network; the symbolic ID3/ID5R; evolution-based genetic algorithms. The knowledge representations and algorithms of these methods are examined in the context of…
Descriptors: Artificial Intelligence, Indexing, Induction, Information Processing