NDLI: Transferred Feature Selection

Content Provider	IEEE Xplore Digital Library
Author	Wei Bi Yuan Shi Zhenzhong Lan
Copyright Year	2009
Abstract	Traditional feature selection algorithms require a large number of labeled training instances to find out the most informative subset of features. However, in many real-world applications, the labeled data are often difficult, expensive or time-consuming to obtain. Recently, several semi-supervised feature selection algorithms were proposed, which aim at doing feature selection with the help of some unlabeled data. But such methods assume the labeled and unlabeled data are under the same data distribution. In this paper, we propose a new framework named Transferred Feature Selection (TFS), which uses out-of-domain labeled data to alleviate the lack of same-distribution labeled training data. The out-of-domain data are labeled but have different distributions with the same-distribution data, so most supervised or semi-supervised feature selection algorithms fail to work well with them. The key idea of TFS is to transfer knowledge from the out-of-domain instances to select a feature subset that can yield high prediction accuracy. The framework is then implemented by k-NN method. Analysis and experiments show that TFS can effectively exploit the out-of-domain instances to improve the performance of feature selection.
Starting Page	416
Ending Page	421
File Size	340494
Page Count	6
File Format	PDF
ISBN	9781424453849
DOI	10.1109/ICDMW.2009.102
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer science Conferences Training data Machine learning Bismuth Data mining Labeling Application software Sun Testing
Content Type	Text
Resource Type	Article

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