Kernel Probabilistic Dependent-Independent Canonical Correlation Analysis

被引:0
|
作者
Rohani Sarvestani, Reza [1 ]
Gholami, Ali [2 ]
Boostani, Reza [3 ]
机构
[1] Shahrekord Univ, Dept Comp Engn, Shahrekord, Iran
[2] Islamic Azad Univ, Fac Technol & Engn, Dept Elect Engn, Tehran Branch, Tehran, Iran
[3] Shiraz Univ, ECE Fac, CSE & IT Dept, Shiraz, Iran
关键词
RECOGNITION; FUSION;
D O I
10.1155/2024/7393431
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
There is growing interest in developing linear/nonlinear feature fusion methods that fuse the elicited features from two different sources of information for achieving a higher recognition rate. In this regard, canonical correlation analysis (CCA), cross-modal factor analysis, and probabilistic CCA (PCCA) have been introduced to better deal with data variability and uncertainty. In our previous research, we formerly developed the kernel version of PCCA (KPCCA) to capture both nonlinear and probabilistic relation between the features of two different source signals. However, KPCCA is only able to estimate latent variables, which are statistically correlated between the features of two independent modalities. To overcome this drawback, we propose a kernel version of the probabilistic dependent-independent CCA (PDICCA) method to capture the nonlinear relation between both dependent and independent latent variables. We have compared the proposed method to PDICCA, CCA, KCCA, cross-modal factor analysis (CFA), and kernel CFA methods over the eNTERFACE and RML datasets for audio-visual emotion recognition and the M2VTS dataset for audio-visual speech recognition. Empirical results on the three datasets indicate the superiority of both the PDICCA and Kernel PDICCA methods to their counterparts.
引用
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页数:20
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