Keyphrases
- web search
- search engine
- information retrieval
- document collections
- web documents
- semantic information
- relevant documents
- document clustering
- information retrieval systems
- legal documents
- digital documents
- vector space model
- document retrieval
- text documents
- xml documents
- keywords
- knowledge base
- user queries
- web data
- document classification
- metadata
- text analysis
- structured documents
- multi document summarization
- retrieval systems
- query terms
- ranked list
- semantic relationships
- electronic documents
- machine learning