A Parallel Computing Approach to Creating Engineering Concept Spaces for Semantic Retrieval: The Illinois Digital Library Initiative Project. - Hsinchun Chen; Bruce R. Schatz; Tobun D. Ng; Joanne Martinez; Amy Kirchhoff; Chienting Lin (IEEE Trans. Pattern Anal. Mach. Intell., 1996)

A Concept Space Approach to Addressing the Vocabulary Problem in Scientific Information Retrieval: An Experiment on the Worm Community System. - Hsinchun Chen; Tobun D. Ng; Joanne Martinez; Bruce R. Schatz (J. Am. Soc. Inf. Sci., 1997)

Alleviating Search Uncertainty Through Concept Associations: Automatic Indexing, Co-Occurrence Analysis, and Parallel Computing. - Hsinchun Chen; Joanne Martinez; Amy Kirchhoff; Tobun D. Ng; Bruce R. Schatz (J. Am. Soc. Inf. Sci., 1998)