Keyphrases
- database
- response time
- query processing
- data structure
- relevance feedback
- query expansion
- range queries
- user queries
- result set
- query evaluation
- user interaction
- indexing techniques
- database queries
- original query
- website
- query execution
- web pages
- search queries
- answering queries
- html pages
- complex queries
- document retrieval
- keyword search
- vector space
- attribute values
- data sources
- databases