Multiple Cayley-Klein metric learning.
Multiple Cayley-Klein metric learning.
复制标题
多重凯莱-克莱因度量学习
DOI:
10.1371/journal.pone.0184865
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发表时间:
2017
期刊:
影响因子:
3.7
通讯作者:
Wu F
中科院分区:
文献类型:
--
作者:
Bi Y;Fan B;Wu F
As a specific kind of non-Euclidean metric lies in projective space, Cayley-Klein metric has been recently introduced in metric learning to deal with the complex data distributions in computer vision tasks. In this paper, we extend the original Cayley-Klein metric to the multiple Cayley-Klein metric, which is defined as a linear combination of several Cayley-Klein metrics. Since Cayley-Klein is a kind of non-linear metric, its combination could model the data space better, thus lead to an improved performance. We show how to learn a multiple Cayley-Klein metric by iterative optimization over single Cayley-Klein metric and their combination coefficients under the objective to maximize the performance on separating inter-class instances and gathering intra-class instances. Our experiments on several benchmarks are quite encouraging.
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影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
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