Experiments with interval-valued uncertainty. - Richard M. Tong; Lee A. Appelbaum (UAI, 1986)

Conceptual Information Retrieval Using RUBRIC. - Richard M. Tong; Lee A. Appelbaum; Victor N. Askman; James F. Cunningham (SIGIR, 1987)

Conceptual Information Retrieval from Full-Text. - Richard M. Tong; Lee A. Appelbaum (RIAO, 1988)

Problem structure and evidential reasoning. - Richard M. Tong; Lee A. Appelbaum (Int. J. Approx. Reason., 1988)

A knowledge representation for conceptual information retrieval. - Richard M. Tong; Lee A. Appelbaum; Victor N. Askman (Int. J. Intell. Syst., 1989)

An Architecture for Probabilistic Concept-Based Information Retrieval. - Robert M. Fung; Stuart L. Crawford; Lee A. Appelbaum; Richard M. Tong (SIGIR, 1990)

Classification Trees for Information Retrieval. - Stuart L. Crawford; Robert M. Fung; Lee A. Appelbaum; Richard M. Tong (ML, 1991)

Machine Learning Techniques for Document Filtering. - Richard M. Tong; Lee A. Appelbaum (HLT, 1993)

Machine Learning for Knowledge-Based Document Routing (A Report on the TREC-2 Experiment). - Richard M. Tong; Lee A. Appelbaum (TREC, 1993)

A General Purpose Inference Engine for Evidential Reasoning Research - Richard M. Tong; Lee A. Appelbaum; Daniel G. Shapiro (CoRR, 2013)