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 language | English |
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Title of host publication | 9th International Conference on Intelligent Systems Design and Applications (ISDA'09) Event: Conference |
Publisher | IEEE Press |
Pages | 249-259 |
Number of pages | 11 |
Volume | 7 |
Edition | 4 |
ISBN (Electronic) | 978-0-7695-3872-3 |
ISBN (Print) | 978-1-4244-4735-0 |
DOIs | |
Publication status | Published - 30 Nov 2009 |
Event | 9th International Conference on Intelligent Systems Design and Applications (ISDA'09) - Pisa, Italy Duration: 30 Nov 2009 → 02 Dec 2009 |
Conference
Conference | 9th International Conference on Intelligent Systems Design and Applications (ISDA'09) |
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Country/Territory | Italy |
City | Pisa |
Period | 30 Nov 2009 → 02 Dec 2009 |