Measures for Unsupervised Fuzzy-Rough Feature Selection

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

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Abstract

For supervised learning, feature selection algorithms attempt to maximise a given function of predictive accuracy. This function usually considers the ability of feature vectors to reflect decision class labels. It is therefore intuitive to retain only those features that are related to or lead to these decision classes. However, in unsupervised learning, decision class labels are not provided, which poses questions such as; which features should be retained? and, why not use all of the information? The problem is that not all features are important. Some of the features may be redundant, and others may be irrelevant and noisy. In this paper, some new fuzzy-rough set-based approaches to unsupervised feature selection are proposed. These approaches require no thresholding or domain information, and result in a significant reduction in dimensionality whilst retaining the semantics of the data.
Original languageEnglish
Title of host publication9th International Conference on Intelligent Systems Design and Applications (ISDA'09) Event: Conference
PublisherIEEE Press
Pages249-259
Number of pages11
Volume7
Edition4
ISBN (Electronic)978-0-7695-3872-3
ISBN (Print)978-1-4244-4735-0
DOIs
Publication statusPublished - 30 Nov 2009
Event9th International Conference on Intelligent Systems Design and Applications (ISDA'09) - Pisa, Italy
Duration: 30 Nov 200902 Dec 2009

Conference

Conference9th International Conference on Intelligent Systems Design and Applications (ISDA'09)
Country/TerritoryItaly
CityPisa
Period30 Nov 200902 Dec 2009

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