Keyphrases
- speech acts
- communication tools
- spam filtering
- enron email
- email messages
- collaborative learning
- information sharing
- communication medium
- anti spam
- logic programming
- formal semantics
- spam detection
- online communication
- semantic information
- conceptual model
- instant messaging
- collaborative activities
- collaborative problem solving
- cross disciplinary
- text classification
- text mining
- knowledge representation
- social networks