Huacan He

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Real world data sets usually have many features, which increases the complexity of data mining task. Feature selection, as a prepro-cessing step to the data mining, has been shown very effective in reducing dimensionality, removing irrelevant data, increasing learning accuracy, and improving comprehensibility. To find the optimal feature subsets is the aim(More)
—The aim of this paper is solving the predicate calculus formal system based on 1-level universal AND operator. Firstly, universal logic and propositional calculus formal deductive system (0 1] h UL − ∈ , are introduced. Secondly, a predicate calculus formal deductive system (0 1] h UL − ∈ , ∀ based on 1-level universal AND operator is built. Thirdly, the(More)