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|Title:||Building text classifiers using positive and unlabeled examples||Authors:||Liu, B.
|Issue Date:||2003||Citation:||Liu, B.,Dai, Y.,Li, X.,Lee, W.S.,Yu, P.S. (2003). Building text classifiers using positive and unlabeled examples. Proceedings - IEEE International Conference on Data Mining, ICDM : 179-186. ScholarBank@NUS Repository.||Abstract:||This paper studies the problem of building text classifiers using positive and unlabeled examples. The key feature of this problem is that there is no negative example for learning. Recently, a few techniques for solving this problem were proposed in the literature. These techniques are based on the same idea, which builds a classifier in two steps. Each existing technique uses a different method for each step. In this paper, we first introduce some new methods for the two steps, and perform a comprehensive evaluation of all possible combinations of methods of the two steps. We then propose a more principled approach to solving the problem based on a biased formulation of SVM, and show experimentally that it is more accurate than the existing techniques. © 2003 IEEE.||Source Title:||Proceedings - IEEE International Conference on Data Mining, ICDM||URI:||http://scholarbank.nus.edu.sg/handle/10635/43156||ISBN:||0769519784||ISSN:||15504786|
|Appears in Collections:||Staff Publications|
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