Keyphrases
- transfer learning
- sentiment analysis
- text classification
- text mining
- sentiment lexicon
- opinion mining
- sentiment words
- learning tasks
- knowledge transfer
- sentiment classification
- labeled data
- machine learning
- active learning
- text categorization
- cross domain
- sentence level
- reinforcement learning
- structure learning
- natural language processing
- collaborative filtering
- transfer knowledge
- semi supervised learning
- product reviews
- online reviews
- machine learning algorithms
- target domain
- multi task
- expert systems
- public opinion
- collective classification
- information retrieval
- nearest neighbor
- semi supervised
- domain adaptation
- learning algorithm
- neural network
- product features
- artificial intelligence
- feature selection
- knowledge base
- user profiles
- databases
- unlabeled data
- prior knowledge
- k nearest neighbor
- social media