Keyphrases
- information retrieval
- content based retrieval
- efficient retrieval
- multimedia retrieval
- efficient indexing
- automatic indexing
- enron email
- email messages
- document indexing
- multimedia databases
- spam filtering
- indexing techniques
- content based indexing
- image indexing
- text retrieval
- index terms
- semantic indexing
- video indexing
- retrieval engine
- retrieval efficiency
- image retrieval
- instant messaging
- data retrieval
- communication medium
- similarity retrieval
- audio visual content
- interactive retrieval
- efficient search
- database
- text mining
- image database
- spam detection
- retrieval strategies
- indexing structure
- storage and retrieval
- retrieval process
- electronic mail
- relevance feedback
- language model
- content description
- anti spam
- pre classified
- document retrieval
- retrieval model
- document analysis
- information retrieval systems
- phishing emails
- multimedia collections
- spam emails
- retrieval method
- effective retrieval
- object retrieval
- email communication
- query expansion
- retrieval systems
- mailing lists
- spam filters