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Feature Selection in Data Mining - Approaches Based on Information Theory
ISBN-13: 9783836427111 / Angielski / Miękka / 2007 / 104 str.
Feature Selection in Data Mining - Approaches Based on Information Theory
ISBN-13: 9783836427111 / Angielski / Miękka / 2007 / 104 str.
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In many predictive modeling tasks, one has a fixed set of observations from which a vast, or even infinite, set of potentially predictive features can be computed. Of these features, often only a small number are expected to be useful in a predictive model. Models which use the entire set of features will almost certainly overfit on future data sets. The book presents streamwise feature selection which interleaves the process of generating new features with that of feature testing. Streamwise feature selection scales well to large feature sets. The book also describes how to use streamwise feature seleciton in multivariate regressions. It includes a review of traditional feature selecitions in a general framework based on information theory, and compares these methods with streamwise feature selection on various real and synthetic data sets. This book is intended to be used by researchers in machine learning, data mining, and knowledge discovery.
In many predictive modeling tasks, one has a fixed set of observations fromwhich a vast, or even infinite, set of potentially predictive features can becomputed. Of these features, often only a small number are expected to beuseful in a predictive model. Models which use the entire set of features willalmost certainly overfit on future data sets.The book presents streamwise feature selection which interleaves the processof generating new features with that of feature testing. Streamwise featureselection scales well to large feature sets. The book also describes how to usestreamwise feature seleciton in multivariate regressions.It includes a review of traditional feature selecitions in a general frameworkbased on information theory, and compares these methods with streamwisefeature selection on various real and synthetic data sets. This book isintended to be used by researchers in machine learning, data mining, andknowledge discovery.
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