Keyphrases
- spam filtering
- supervised machine learning
- spam detection
- pre classified
- pattern recognition
- classification accuracy
- automatic classification
- classification method
- pattern classification
- annotated corpus
- active learning
- spam e mail
- feature extraction
- classification scheme
- manually annotated
- machine learning
- model selection
- email classification
- instant messaging
- manual annotation
- machine learning algorithms
- electronic mail
- classification algorithm
- training samples
- text classification
- text mining
- support vector machine
- feature vectors
- feature space
- decision trees
- metadata
- search engine