International Journal of Computer Applications
CBR has been successfully applied to the areas of planning, diagnosis, law and decision making among others. It uses useful prior cases to solve the new problems. CBR must accurately retrieve similar prior cases for getting a good performance. Throughout this paper, the novel case base indexing model based on power set tree has been introduced. A custom solution designed and built to find the unique combinations for each case in a case base. Then, use these unique combinations to build the case base index.