CLOVER: a faster prior-free approach to rare-category detection
CLOVER: a faster prior-free approach to rare-category detection
复制标题
CLOVER:一种更快的无先验稀有类别检测方法
DOI:
10.1007/s10115-012-0530-9
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发表时间:
2013-06
影响因子:
2.7
通讯作者:
Lianhang Ma
中科院分区:
文献类型:
--
作者:
Hao Huang;Qinming He;Kevin Chiew;Feng Qian;Lianhang Ma
Rare-category detection helps discover new rare classes in an unlabeled data set by selecting their candidate data examples for labeling. Most of the existing approaches for rare-category detection require prior information about the data set without which they are otherwise not applicable. The prior-free algorithms try to address this problem without prior information about the data set; though, the compensation is high time complexity, which is not lower thanwhereis the number of data examples in a data set andis the data set dimension. In this paper, we propose CLOVER a prior-free algorithm by introducing a novel rare-category criterion known as local variation degree (LVD), which utilizes the characteristics of rare classes for identifying rare-class data examples from other types of data examples and passes those data examples with maximum LVD values to CLOVER for labeling. A remarkable improvement is that CLOVER’s time complexity isfororfor. Extensive experimental results on real data sets demonstrate the effectiveness and efficiency of our method in terms of new rare classes discovery and lower time complexity.
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影响因子:
4.8
作者:
M. Otey;A. Ghoting;S. Parthasarathy
通讯作者:
M. Otey;A. Ghoting;S. Parthasarathy
影响因子:
3.7
作者:
M. Timmerman
通讯作者:
M. Timmerman
影响因子:
4.5
作者:
D. Pelleg;A. Moore
通讯作者:
D. Pelleg;A. Moore
影响因子:
3.2
作者:
Abdi, Herve;Williams, Lynne J.
通讯作者:
Williams, Lynne J.
DOI:
10.2307/2291188
发表时间:
1988-01
期刊:
--
影响因子:
--
作者:
J. Rice
通讯作者:
J. Rice