Keyphrases
- query processing
- database
- query expansion
- relevance feedback
- data sources
- query evaluation
- complex queries
- response time
- user queries
- range queries
- retrieval process
- query terms
- data objects
- keyword search
- retrieval method
- cost model
- vector space
- retrieval systems
- web search engines
- user interaction
- data structure
- keywords
- query execution
- query formulation
- efficient processing
- database queries
- index structure
- co occurrence
- search engine
- artificial intelligence
- neural network