Keyphrases
- event detection
- labeled data
- unlabeled data
- semi supervised
- semi supervised learning
- training data
- text classification
- active learning
- supervised learning
- transfer learning
- video event detection
- labeled training data
- activity recognition
- domain adaptation
- semi supervised classification
- prior knowledge
- event recognition
- labeled and unlabeled data
- training examples
- learning algorithm
- class labels
- data points
- background knowledge
- co training
- feature selection
- training set
- computer vision
- action recognition
- text categorization
- recommender systems
- unsupervised learning
- databases
- data sets