Keyphrases
- semi supervised learning
- product reviews
- semi supervised
- labeled data
- unlabeled data
- unsupervised learning
- supervised learning
- training data
- opinion mining
- text categorization
- machine learning
- sentiment analysis
- active learning
- co training
- transfer learning
- data sets
- data mining
- information retrieval
- social networks
- learning tasks
- generative model
- text classification
- learning process
- multiple kernel learning