Randomized Kernel Multi-view Discriminant Analysis

• URL: http://arxiv.org/abs/2004.01143v1
• Date: Thu, 2 Apr 2020 17:15:32 GMT
• Title: Randomized Kernel Multi-view Discriminant Analysis
• Authors: Xiaoyun Li, Jie Gui, Ping Li
• Abstract summary: Multi-view discriminant analysis (MvDA) is an effective multi-view subspace learning method. We propose the kernel version of multi-view discriminant analysis, called kernel multi-view discriminant analysis (KMvDA)
• Score: 41.989132939870146
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In many artificial intelligence and computer vision systems, the same object can be observed at distinct viewpoints or by diverse sensors, which raises the challenges for recognizing objects from different, even heterogeneous views. Multi-view discriminant analysis (MvDA) is an effective multi-view subspace learning method, which finds a discriminant common subspace by jointly learning multiple view-specific linear projections for object recognition from multiple views, in a non-pairwise way. In this paper, we propose the kernel version of multi-view discriminant analysis, called kernel multi-view discriminant analysis (KMvDA). To overcome the well-known computational bottleneck of kernel methods, we also study the performance of using random Fourier features (RFF) to approximate Gaussian kernels in KMvDA, for large scale learning. Theoretical analysis on stability of this approximation is developed. We also conduct experiments on several popular multi-view datasets to illustrate the effectiveness of our proposed strategy.

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