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- aggregation classification "C1".
- aggregation creator B86454.
- aggregation creator B86455.
- aggregation creator B86456.
- aggregation date "2011".
- aggregation format "application/pdf".
- aggregation hasFormat 3198359.bibtex.
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- aggregation isPartOf urn:isbn:9781450306904.
- aggregation language "eng".
- aggregation publisher "ACM".
- aggregation rights "I have retained and own the full copyright for this publication".
- aggregation subject "Technology and Engineering".
- aggregation title "Separating the wheat from the chaff: on feature selection and feature importance in regression random forests and symbolic regression".
- aggregation abstract "Feature selection in high-dimensional data sets is an open problem with no universal satisfactory method available. In this paper we discuss the requirements for such a method with respect to the various aspects of feature importance and explore them using regression random forests and symbolic regression. We study 'conventional' feature selection with both methods on several test problems and a case study, compare the results, and identify the conceptual differences in generated feature importances. We demonstrate that random forests might overlook important variables (significantly related to the response) for various reasons, while symbolic regression identifies all important variables if models of sufficient quality are found. We explain the results by the fact that variable importances obtained by these methods have different semantics.".
- aggregation authorList BK222922.
- aggregation endPage "630".
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