资源论文Multi-View Exclusive Unsupervised Dimension Reduction for Video-Based Facial Expression Recognition

Multi-View Exclusive Unsupervised Dimension Reduction for Video-Based Facial Expression Recognition

2019-11-27 | |  63 |   51 |   0

Abstract Video-based facial expression recognition (FER) has recently received increased attention as a result of its widespread application. Many kinds of features have been proposed to represent different properties of facial expressions in videos. However the dimensionality of these features is usually high. In addition, due to the complexity of the information available in video sequences, using only one type of feature is often inadequate. How to effectively reduce the dimensionality and combine multi-view features thus becomes a challenging problem. In this paper, motivated by the recent success in exclusive feature selection, we fifirst introduce exclusive group LASSO (EG-LASSO) to unsupervised dimension reduction (UDR). This leads to the proposed exclusive UDR (EUDR) framework, which allows arbitrary sparse structures on the feature space. To properly combine multiple kinds of features, we further extend EUDR to multi-view EUDR (MEUDR), where the structured sparsity is enforced at both intra- and inter-view levels. In addition, combination weights are learned for all views to allow them to contribute differently to the fifinal consensus presentation. A reliable solution is then obtained. Experiments on two challenging video-based FER datasets demonstrate the effectiveness of the proposed method

上一篇:Unsupervised Alignment of Actions in Video with Text Descriptions

下一篇:Deep Nonlinear Feature Coding for Unsupervised Domain Adaptation

用户评价
全部评价

热门资源

  • Learning to Predi...

    Much of model-based reinforcement learning invo...

  • Stratified Strate...

    In this paper we introduce Stratified Strategy ...

  • The Variational S...

    Unlike traditional images which do not offer in...

  • A Mathematical Mo...

    Direct democracy, where each voter casts one vo...

  • Rating-Boosted La...

    The performance of a recommendation system reli...