Keyphrases
- parse selection
- active learning
- semantic features
- learning algorithm
- syntactic features
- cross domain
- semi supervised
- training set
- transfer learning
- supervised learning
- semi supervised learning
- unlabeled data
- labeled data
- relevance feedback
- machine learning
- learning process
- information retrieval
- text categorization
- feature vectors
- decision trees
- relation extraction
- feature selection