Title
Cost-sensitive Label Embedding for Multi-label Classification.
Abstract
Label embedding (LE) is an important family of multi-label classification algorithms that digest the label information jointly for better performance. Different real-world applications evaluate performance by different cost functions of interest. Current LE algorithms often aim to optimize one specific cost function, but they can suffer from bad performance with respect to other cost functions. In this paper, we resolve the performance issue by proposing a novel cost-sensitive LE algorithm that takes the cost function of interest into account. The proposed algorithm, cost-sensitive label embedding with multidimensional scaling (CLEMS), approximates the cost information with the distances of the embedded vectors by using the classic multidimensional scaling approach for manifold learning. CLEMS is able to deal with both symmetric and asymmetric cost functions, and effectively makes cost-sensitive decisions by nearest-neighbor decoding within the embedded vectors. We derive theoretical results that justify how CLEMS achieves the desired cost-sensitivity. Furthermore, extensive experimental results demonstrate that CLEMS is significantly better than a wide spectrum of existing LE algorithms and state-of-the-art cost-sensitive algorithms across different cost functions.
Year
DOI
Venue
2017
https://doi.org/10.1007/s10994-017-5659-z
Machine Learning
Keywords
DocType
Volume
Multi-label classification,Cost-sensitive,Label embedding
Journal
abs/1603.09048
Issue
ISSN
Citations 
9-10
0885-6125
5
PageRank 
References 
Authors
0.43
24
2
Name
Order
Citations
PageRank
Kuan-Hao Huang193.23
Hsuan-Tien Lin282974.77