朴勇

个人信息Personal Information

副教授

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:软件学院、国际信息与软件学院

办公地点:大连经济开发区大连理工大学软件学院

联系方式:15641190702

电子邮箱:piaoy@dlut.edu.cn

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An improved cache-based PTSVM learning algorithm

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论文类型:会议论文

发表时间:2009-12-11

收录刊物:EI、Scopus

摘要:Support vector machine is gaining popularity due to many attractive features and promising empirical performance in the fields of nonlinear and high dimensional pattern recognition. TSVM (transductive support vector machine) takes into account a particular test set and tries to minimize misclassifications of just those particular examples. PTSVM (progressive transductive support vector machine) can automatically adapt to different data distributions and realize a transductive learning of support vectors in a more general sense. However, the process of pairwise labeling of PTSVM in the margin band is unnatural and products errors more easily. Although dynamical adjusting offers some sort of error recovery function, its ability is limited. In allusion to the shortcomings of PTSVM learning algorithm, ICPTSVM (an improved cache-based PTSVM) learning algorithm is presented. The algorithm uses pairwise labeling in the range and error-correcting on cache to replace pairwise labeling in the margin band and dynamical adjusting. Then it greatly reduces the number of mis-labeling and improves the speed and accuracy. Experiments data show the validity of this algorithm. ?2009 IEEE.