Keyphrases
- document collections
- document classification
- information retrieval
- text documents
- document clustering
- document retrieval
- information retrieval systems
- relevant documents
- xml documents
- metadata
- document representation
- web documents
- keywords
- structured documents
- document structure
- retrieval systems
- text retrieval
- document content
- time stamped
- textual content
- vector space model
- web data
- natural language
- neural network
- text categorization
- language model