Keyphrases
- spam filtering
- enron email
- web services
- email messages
- electronic mail
- service quality
- spam detection
- service providers
- service oriented
- service composition
- security services
- instant messaging
- application level
- anti spam
- search engine
- prepositional phrase
- service discovery
- text mining
- speech acts
- key management
- security requirements
- privacy preserving
- management system
- communication medium
- end users