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Markov Blanket Feature Selection Using Representative Sets

机译:使用代表集的马尔可夫毯子特征选择

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摘要

It has received much attention in recent years to use Markov blankets in a Bayesian network for feature selection. The Markov blanket of a class attribute in a Bayesian network is a unique yet minimal feature subset for optimal feature selection if the probability distribution of a data set can be faithfully represented by this Bayesian network. However, if a data set violates the faithful condition, Markov blankets of a class attribute may not be unique. To tackle this issue, in this paper, we propose a new concept of representative sets and then design the selection via group alpha-investing (SGAI) algorithm to perform Markov blanket feature selection with representative sets for classification. Using a comprehensive set of real data, our empirical studies have demonstrated that SGAI outperforms the state-of-the-art Markov blanket feature selectors and other well-established feature selection methods.
机译:近年来,在贝叶斯网络中使用Markov毛毯进行特征选择已经引起了广泛的关注。如果数据集的概率分布可以由该贝叶斯网络如实表示,则贝叶斯网络中类属性的马尔可夫毯是唯一的但最小的特征子集,用于最佳特征选择。但是,如果数据集违反了忠实条件,则类别属性的马尔可夫毯可能不是唯一的。为了解决这个问题,在本文中,我们提出了一个代表集的新概念,然后通过群体阿尔法投资(SGAI)算法设计选择,以利用代表集进行分类的马尔可夫覆盖特征选择。使用一组全面的真实数据,我们的经验研究表明,SGAI优于最先进的Markov橡皮布特征选择器和其他完善的特征选择方法。

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