Keyphrases
- document structure
- automatic summarization
- text summarization
- named entity recognition
- natural language processing
- multi document summarization
- question answering
- information extraction
- xml documents
- query expansion
- document representation
- document clustering
- structured documents
- pairwise
- maximum entropy
- artificial intelligence
- language independent
- automatic evaluation
- text documents
- named entities
- relevance feedback
- feature selection