Paper: Learning and discovery from a clinical database: An incremental concept formation approach

Authors:
Von-Wun Soo;Jan-Sing Wang;Shih-Pu Wang
Affiliations:
Department of Computer Science, National Tsing-Hua University, Hsin-Chu, Taiwan 30043;Department of Computer Science, National Tsing-Hua University, Hsin-Chu, Taiwan 30043;Division of Cardiology, Taipei General Veterans Hospital, Taipei, Taiwan
Venue:
Artificial Intelligence in Medicine
Year:
1994

Citing 9
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Conceptual clustering and its relation to numerical taxonomy

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Abstract

The main interest of this research is to discover clinical implications from a large PTCA (Percutaneous Transluminal Coronary Angioplasty) database. A case-based concept formation model D-UNIMEM, a modified version of Lebowitz's UNIMEM, is proposed for this purpose. In this model, we integrated two kinds of class memberships: the feature-disjunction class membership and the index-conjunction class membership. The former is a polythetic clustering approach and serves at the early stage of concept formation. The latter allows only relevant instances to be placed in the same cluster and serves as the later stage of concept formation. D-UNIMEM could extract interesting correlations among features from the learned concept hierarchy.