Bayesian Fisher's Discriminant for Functional Data
Bayesian Fisher's Discriminant for Functional Data
复制标题
函数数据的贝叶斯费舍尔判别式
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Chu
中科院分区:
文献类型:
--
作者:
Yao;Lu;C. Wang;Chu
We propose a Bayesian framework of Gaussian process in order to extend Fisher's discriminant to classify functional data such as spectra and images. The probability structure for our extended Fisher's discriminant is explicitly formulated, and we utilize the smoothness assumptions of functional data as prior probabilities. Existing methods which directly employ the smoothness assumption of functional data can be shown as special cases within this framework given corresponding priors while their estimates of the unknowns are one-step approximations to the proposed MAP estimates. Empirical results on various simulation studies and different real applications show that the proposed method significantly outperforms the other Fisher's discriminant methods for functional data.
影响因子:
4.4
作者:
Yang J;Zhu H;Choi T;Cox DD
通讯作者:
Cox DD
影响因子:
4.5
作者:
Carroll,RaymondJ;Delaigle,Aurore;Hall,Peter
通讯作者:
Hall,Peter