A multi-class classification with a probabilistic localized decoder

被引:0
作者
Takenouchi, Takashi [1 ]
Ishii, Shin [2 ]
机构
[1] Nara Inst Sci & Technol, Grad Sch Informat Sci, 8916-5 Takayama, Nara 6300192, Japan
[2] Kyoto Univ, Grad Sch Informat, Dept Syst Sci, Kyoto 6068501, Japan
来源
2007 IEEE INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND INFORMATION TECHNOLOGY, VOLS 1-3 | 2007年
关键词
multi-class classification; ECOC; local likelihood;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Based on the framework of error-correcting output coding (ECOC), we formerly proposed a multi-class classification method in which mis-classification of each binary classifier is regarded as a bit inversion error based on a probabilistic model of the noisy channel. In this article, we propose a modification of the method, based on localized likelihood, to deal with the discrepancy of metric between assumed by binary classifiers and underlying the dataset. Experiments using a synthetic dataset are performed, and we observe the improvement by the localized method.
引用
收藏
页码:56 / +
页数:3
相关论文
共 6 条
[1]  
CRAMMER K, 2001, J MACHINE LEARNING R, V2, P265
[2]  
Dietterich T. G., 1995, Journal of Artificial Intelligence Research, V2, P263
[3]   A class of local likelihood methods and near-parametric asymptotics [J].
Eguchi, S ;
Copas, J .
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 1998, 60 :709-724
[4]  
Guruswami V., 1999, Proceedings of the Twelfth Annual Conference on Computational Learning Theory, P145, DOI 10.1145/307400.307429
[5]  
Rifkin R, 2004, J MACH LEARN RES, V5, P101
[6]  
TAKENOUCHI T, 2007, IJCNN 07 IN PRESS