A Case Elaboration Methodology for a Semantic Web Service Discovery System Based on CBR

Abstract

The Case Based Reasoning is a paradigm of intelligent reasoning which consists on reusing results of previously solved problems (Source Cases) to solve new problems (Target Cases). It has been formalized as a five-step process consisting of: "Elaboration", "Retrieve", "Reuse", "Revise" and "Retain". In this paper we focus on the first phase of the CBR cycle with all of the required modeling to formalize a Case in our CBR-based system for semantic Web service discovery (CBR4WSD). This phase consists in formalizing the problem description and its structuring before launching the "Retrieve" phase and select the most appropriate Source Cases from the Case Base. We identify a set of basic descriptors to formalize Cases handled in our CBR4WSD system. In this conduct and in accordance with CBR policies, we put forward our Case representation model.