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| Content Provider | ACM Digital Library |
|---|---|
| Author | Ji, Shuiwang Tang, Lei Yu, Shipeng Ye, Jieping |
| Abstract | Multi-label problems arise in various domains such as multi-topic document categorization and protein function prediction. One natural way to deal with such problems is to construct a binary classifier for each label, resulting in a set of independent binary classification problems. Since the multiple labels share the same input space, and the semantics conveyed by different labels are usually correlated, it is essential to exploit the correlation information contained in different labels. In this paper, we consider a general framework for extracting shared structures in multi-label classification. In this framework, a common subspace is assumed to be shared among multiple labels. We show that the optimal solution to the proposed formulation can be obtained by solving a generalized eigenvalue problem, though the problem is non-convex. For high-dimensional problems, direct computation of the solution is expensive, and we develop an efficient algorithm for this case. One appealing feature of the proposed framework is that it includes several well-known algorithms as special cases, thus elucidating their intrinsic relationships. We have conducted extensive experiments on eleven multi-topic web page categorization tasks, and results demonstrate the effectiveness of the proposed formulation in comparison with several representative algorithms. |
| Starting Page | 381 |
| Ending Page | 389 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781605581934 |
| DOI | 10.1145/1401890.1401939 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2008-08-24 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Multi-label classification Least squares Shared subspace |
| Content Type | Text |
| Resource Type | Article |
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