Handling missing labels and class imbalance challenges simultaneously for facial action unit recognition.
Yongqiang LiBaoyuan WuYongping ZhaoHongxun YaoQiang JiPublished in: Multim. Tools Appl. (2019)
Keyphrases
- class imbalance
- facial action units
- class distribution
- active learning
- facial expressions
- facial expression recognition
- high dimensionality
- concept drift
- cost sensitive
- semantic relationships
- object recognition
- training examples
- facial actions
- pattern recognition
- feature selection
- class labels
- training set
- training data
- missing data
- computer vision
- dimensionality reduction
- input image
- semi supervised
- data streams
- reinforcement learning
- minority class