Case-Base Maintenance by Integrating Case-Index Revision and Case-Retention Policies in a Derivational Replay Framework

This article presents case base maintenance policies for case index revision and case retention The policies are formulated in the context of case based planners performing case adaptation by derivational replay We implemented these policies on a particular case based planner and claim that our case index revision policy improves the accuracy of the retrieval and that the case retention policy lters redundant cases better than other case retention policies known from the literature Our claims are validated by empirical validation We will observe that there is an inter relation between the two policies that improves the ltering process of the case retention policy