Medical applications of enhanced rule-based expert systems

The paper describes several types of efficiency enhancements of 'classical' rule-based diagnostic expert systems. The blackboard control structure ena bles to explore more knowledge bases of the same syntax in parallel, the ta xonomy structures make fast zooming of attention possible and provide addit ional inference mechanism based on inheritance principles. The applicabilit y of the enhancing techniques is documented by four case studies exploring the extended FEL-EXPERT shell in different tasks of medical decision-making . The authors consider the enhancing techniques as useful steps on the way from 'classical' diagnostic expert systems towards more complex multi-agent decision tools. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved .