Keyphrases
- document collections
- information retrieval
- text documents
- document classification
- information retrieval systems
- keywords
- web documents
- free text
- document retrieval
- legal documents
- vector space model
- relevant documents
- ranked list
- digital documents
- structured documents
- xml documents
- machine learning
- metadata
- text analysis
- document content
- vector space
- probabilistic model
- retrieval systems
- document set
- textual content
- co occurrence
- information extraction