Cost-Sensitive Support Vector Machine Using Randomized Dual Coordinate Descent Method for Big Class-Imbalanced Data Classification
Cost-Sensitive Support Vector Machine Using Randomized Dual Coordinate Descent Method for Big Class-Imbalanced Data Classification
复制标题
使用随机双坐标下降法进行大类不平衡数据分类的成本敏感支持向量机
DOI:
10.1155/2014/416591
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发表时间:
2014-07
影响因子:
--
通讯作者:
谢七月
中科院分区:
文献类型:
--
作者:
唐明珠;杨春华;张亢;谢七月
Cost-sensitive support vector machine is one of the most popular tools to deal with class-imbalanced problem such as fault diagnosis. However, such data appear with a huge number of examples as well as features. Aiming at class-imbalanced problem on big data, a cost-sensitive support vector machine using randomized dual coordinate descent method (CSVM-RDCD) is proposed in this paper. The solution of concerned subproblem at each iteration is derived in closed form and the computational cost is decreased through the accelerating strategy and cheap computation. The four constrained conditions of CSVM-RDCD are derived. Experimental results illustrate that the proposed method increases recognition rates of positive class and reduces average misclassification costs on real big class-imbalanced data.
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6
作者:
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Chan-Yun Yang;Jr-Syu Yang;Jianjun Wang
DOI:
10.1016/j.eswa.2011.09.071
发表时间:
2012-03
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Expert Syst. Appl.
影响因子:
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DOI:
--
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2006
期刊:
ArXiv
影响因子:
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