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A Collection of Visual Thesauri for Browsing Large Collections of Geographic Images.
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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
Introduction to the Special Topic Issue: Part 1.
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Chen, Hsinchun – Journal of the American Society for Information Science, 2000
Discusses changes in the location and provision of information services that have resulted from online technologies, particularly the World Wide Web. Highlights include knowledge management in digital libraries; the importance of research on information technology and digital libraries; semantic indexes; concept switching; information analysis;…
Descriptors: Electronic Libraries, Indexes, Information Services, Information Technology
Moving Digital Libraries into the Student Learning Space: The GetSmart Experience
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Marshall, Byron B.; Chen, Hsinchun; Shen, Rao; Fox, Edward A. – Journal on Educational Resources in Computing, 2006
The GetSmart system was built to support theoretically sound learning processes in a digital library environment by integrating course management, digital library, and concept mapping components to support a constructivist, six-step, information search process. In the fall of 2002 more than 100 students created 1400 concept maps as part of…
Descriptors: Constructivism (Learning), Concept Mapping, Knowledge Representation, Electronic Libraries
Introduction to the Special Topic Issue, In This Issue.
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Chen, Hsinchun – Journal of the American Society for Information Science, 2000
Discusses four major trends that have been encouraging the transition to a global digital library: (1) economics of the Internet, including inflation, multimedia, collaboration, timeliness, and scholarly communication; (2) improved service; (3) new digital library technologies, including network technology, data compression, full-text indexing,…
Descriptors: Computer Networks, Cooperation, Economic Factors, Electronic Libraries
Semantic Research for Digital Libraries.
Chen, Hsinchun – D-Lib Magazine, 1999
Discusses the need for semantic research in digital libraries to help overcome interoperability problems. Highlights include federal initiatives; semantic analysis; knowledge representations; human-computer interactions and information visualization; and the University of Illinois DLI (Digital Libraries Initiative) project through partnership with…
Descriptors: Academic Libraries, Artificial Intelligence, Electronic Libraries, Federal Programs
Comparing Noun Phrasing Techniques for Use with Medical Digital Library Tools.
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Tolle, Kristin M.; Chen, Hsinchun – Journal of the American Society for Information Science, 2000
Describes a study that investigated the use of a natural language processing technique called noun phrasing to determine whether it is a viable technique for medical information retrieval. Evaluates four noun phrase generation tools for their ability to isolate noun phrases from medical journal abstracts, focusing on precision and recall.…
Descriptors: Analysis of Variance, Comparative Analysis, Electronic Libraries, Evaluation Methods
Perspectives on DLI-2-Growing the Field [and] Digital Libraries Initiative - Phase 2: Fiscal Year 1999 Awards [and] Reference Linking for Journal Articles [and] Creating a Large-Scale Digital Library for Georeferenced Information [and] A Report on the PEAK Experiment: Usage and Economic Behavior.
Lesk, Michael; Griffin, Stephen M.; Caplan, Priscilla; Arms, William Y.; Zhu, Bin; Ramsey, Marshall; Ng, Tobun D.; Chen, Hsinchun; Schatz, Bruce; MacKie-Mason, Jeffrey K.; Riveros, Juan F.; Bonn, Maria. S.; Lougee, Wendy P. – D-Lib Magazine, 1999
Describes the growth and accomplishments of Digital Libraries Initiative Phase 2 (DLI-2), lists performer and abstract information for Fiscal Year 1999 awards; progress in reference linking for journal articles with model; presents a Geospatial Knowledge Representation System (GKRS) prototype that integrates multiple knowledge sources to support…
Descriptors: Access to Information, Computer Mediated Communication, Electronic Libraries, Federal Aid