Feature Selection Using a Semantic Hierarchy for Event Recognition and Type Classification.
Yoonjae JeongSung-Hyon MyaengPublished in: IJCNLP (2013)
Keyphrases
- feature selection
- event recognition
- classification accuracy
- text classification
- feature extraction
- unsupervised learning
- support vector
- event detection
- support vector machine
- preprocessing
- feature space
- machine learning
- feature set
- text categorization
- machine learning algorithms
- model selection
- feature vectors
- video analysis
- supervised learning
- image classification
- active learning
- activity recognition
- three dimensional
- feature subset
- decision trees
- computer vision