Keyphrases
- semi supervised learning
- sentiment classification
- sentence level
- document level
- text classification
- labeled data
- sentiment analysis
- domain adaptation
- semi supervised
- unlabeled data
- sentiment polarity
- cross domain
- positive or negative
- machine learning
- semi supervised classification
- text mining
- supervised learning
- opinion mining
- unsupervised learning
- co training
- training data
- information retrieval
- active learning
- text categorization
- text documents
- transfer learning
- labeled and unlabeled data
- label propagation
- text classifiers
- data sets
- multi document summarization
- keywords
- learning algorithm
- cross lingual