Quantifying and Visualizing Attribute Interactions

Aleks Jakulin; Ivan Bratko

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arXiv · cs/0308002

Quantifying and Visualizing Attribute Interactions

Aleks Jakulin·Ivan Bratko

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Abstract

Interactions are patterns between several attributes in data that cannot be inferred from any subset of these attributes. While mutual information is a well-established approach to evaluating the interactions between two attributes, we surveyed its generalizations as to quantify interactions between several attributes. We have chosen McGill's interaction information, which has been independently rediscovered a number of times under various names in various disciplines, because of its many intuitively appealing properties. We apply interaction information to visually present the most important interactions of the data. Visualization of interactions has provided insight into the structure of data on a number of domains, identifying redundant attributes and opportunities for constructing new features, discovering unexpected regularities in data, and have helped during construction of predictive models; we illustrate the methods on numerous examples. A machine learning method that disregards interactions may get caught in two traps: myopia is caused by learning algorithms assuming independence in spite of interactions, whereas fragmentation arises from assuming an interaction in spite of independence.

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Aleks Jakulin, Ivan Bratko. 2004-03-02. Quantifying and Visualizing Attribute Interactions. https://arxiv.org/abs/cs/0308002

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