2008 ExtractingSharedSubspaceforMult

• (Ji et al., 2008) ⇒ Shuiwang Ji, Lei Tang, Shipeng Yu, and Jieping Ye. (2008). “Extracting Shared Subspace for Multi-label Classification.” In: Proceedings of the 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2008). doi:10.1145/1401890.1401939

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• http://scholar.google.com/scholar?q=%22Extracting+shared+subspace+for+multi-label+classification%22+2008
• http://portal.acm.org/citation.cfm?doid=1401890.1401939&preflayout=flat#citedby

Quotes

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.

References

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2008 ExtractingSharedSubspaceforMult	Shuiwang Ji Jieping Ye Lei Tang Shipeng Yu			Extracting Shared Subspace for Multi-label Classification			http://www.public.asu.edu/~jye02/Publications/Papers/SharedSubspace-kdd08.pdf	10.1145/1401890.1401939