Keyphrases
- database
- response time
- query processing
- query expansion
- query evaluation
- relevance feedback
- query formulation
- user queries
- query terms
- information retrieval systems
- retrieval systems
- data structure
- vector space
- range queries
- keyword search
- answering queries
- aggregate queries
- object retrieval
- query interface
- query answering
- data objects
- data management
- data sources
- information retrieval
- neural network