A Case-Based Reasoning Approach for Associative Query Answering. - Gilles Fouqué; Wesley W. Chu; Henrick Yau (ISMIS, 1994)

An Error-based Conceptual Clustering Method for Providing Approximate Query Answers. - Wesley W. Chu; Kuorong Chiang; Chih-Cheng Hsu; Henrick Yau (Commun. ACM, 1996)