Adaptation

Abstract

Chapter 9 is concerned with the reuse of a retrieved experience. Because the previous situation may not be exactly the same as the new problem, the retrieved solution may need to undergo some change. This is called adaptation. It allows us to reach not only the solutions that are directly stored in the case base but also those that are available by adaptation. The changes are performed in steps that are typically realised by rules. We present two kinds of rules, completion rules and solution adaptation rules. The first type describes query completion and correction while the second describes adaptation of solutions. Iterating adaptation steps has led to adaptation processes. The search for adequate adaptation processes is observed as one of high complexity. For the analysis of the search space for adaptation we rely on the competence concept that has led to the footprint method for reducing the search space. Transformational and derivational approaches are also described. This chapter is addressed to readers interested in adaptation of the query or the solution. Not all applications need that but it is of relevance to many. The understanding of this chapter assumes you have read the previous chapters in Part II.