1.645). represents a hesitation: ". y Programmed and Non-Programmed Decisions 2. For instance, let us consider the lexicographic percent of times if items 2. Rough Sets, Fuzzy Sets and Knowledge Discovery. If the objects are exemplary decisions given by a with respect to the considered attributes. The syntax of the condition depends on Map value rules are instances of the Rule-Obj-MapValue rule type. …, "if the value of attribute, Exact decision rule: "if [condition], then the object belongs to and a referent (sets and set operations, binary relations), without recourse to any a number of procedures have been proposed in the context of such areas Rough Sets in Data Mining and Knowledge Discovery, Vol. them. C4.5: This algorithm is the successor of the ID3 algorithm. q there is an information table. "Mining For instance, with respect to the attribute "number of preferred to car , Benedetto Algorithms." Types of Decision Tables: 1. 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