The Retrieval Process in the Safrs System With the Case-Based Reasoning Approach

Abstract

The paper presents the retrieval process in the SAFRS system (system supporting the training of radiologists-senologists) with the case-based reasoning approach (CBR, which is adopted to represent the experience of expert radiologists-senologists under the form of cases) and modelized with the MAP concept. The retrieval process relies on a procedure of case-based reasoning for retrieval of similar cases formalized using a MAP, a re-use methodology named the retrieval MAP. The model of the MAP is an intentional representation system. It is based on concepts of intention and strategy. The concept of intention (or a goal) aims to capture the objective to be achieved. A strategy is the manner an intention is achieved. The retrieval process with the MAP is a multi-step/multi-algorithm process, which permits to retrieve similar cases in various modes and strategies. It is achieved according to three complex strategies: global strategy (or global retrieval strategy), elementary strategy (or elementary retrieval strategy) and mixed strategy (or mixed retrieval strategy).