Data mining - A semantic model

Data mining techniques applied to decision support in real life problems require a multi-step process. Inputs and outputs of these steps require following some standard format to achieve a real useful platform for the execution of data mining algorithms. There is a need to develop a uniform model where every operation can be expressed in a standard way allowing algorithms to cooperate and to reuse results. We present, first, a common structure for the representation of inter-step results, and second, a model of operator, that is, the entity that handles and transforms those common structures according to a basic data mining algorithm.