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Local causal and Markov blanket induction method for causal discovery and feature selection from data

机译:局部因果和马尔可夫毯式归纳法用于因果发现和特征选择

摘要

Methods for discovery of local causes/effects and of Markov blankets enable discovery of causal relationships from large data sets and provide principled solutions to the variable/feature selection problem, an integral part of predictive modeling. The present invention provides a generative method for learning local causal structure around target variables of interest in the form of direct causes/effects and Markov blankets applicable to very large real world datasets even with small samples. The selected feature sets can be used for causal discovery, classification, and regression. The generative method GLL can be instantiated in many ways giving rise to novel method variants. The method transforms a dataset with many variables into either a minimal reduced dataset where all variables are needed for optimal prediction of the response variable, or a dataset where all variables are direct causes and direct effects or the Markov blanket of the response variable.
机译:发现局部原因/影响和马尔可夫毯子的方法可以从大型数据集中发现因果关系,并为变量/特征选择问题(预测模型的组成部分)提供有原则的解决方案。本发明提供了一种生成方法,用于以直接因果/结果和马尔可夫毯的形式学习感​​兴趣的目标变量周围的局部因果结构,该原因甚至可以适用于非常大的现实世界数据集,即使是很小的样本。所选特征集可用于因果发现,分类和回归。生成方法GLL可以以多种方式实例化,从而产生了新颖的方法变体。该方法将具有许多变量的数据集转换为最小化的简化数据集(其中所有变量都是响应变量的最佳预测所必需的),或者将所有变量都是直接原因和直接影响或响应变量的马尔可夫覆盖的数据集。

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