Evolutionary conditional rules versus support vector machines weighted formulas for liver fibrosis degree prediction

Ruxandra Stoean, Catalin Stoean, Monica Lupsor, Horia Stefanescu, Radu Badea


Present paper brings together two novel evolutionary techniques designed for classification and applied for the differentiation among five possible degrees of liver fibrosis within chronic hepatitis C. A purely evolutionary method - the cooperative coevolutionary classifier - endowed with a hill climbing algorithm for the selection of influential attributes is put in opposition to a hybridized approach for the task - the evolutionary support vector machine. Each of the two exhibits interesting resulting features as regards additional information on the importance of each indicator and the interaction among these for the final predicted outcome. The medical experts can eventually benefit from both methodologies as a support for their decision making and decide what further knowledge they need to extract from them, i.e. either in the form of conditional rules, weighted formulas or both.

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