Keyphrases
- spatial networks
- spatial queries
- query language
- spatial data
- query processing
- spatio temporal
- spatial distribution
- database
- spatial and temporal
- web search engines
- complex queries
- query formulation
- spatial information
- user queries
- data sources
- search queries
- database queries
- query logs
- spatial database systems
- spatial databases
- range queries
- space time
- spatio temporal databases
- answering queries
- spatial objects
- efficient processing
- aggregate queries
- query types
- query evaluation
- geographic information systems
- user defined
- multi dimensional
- response time
- data warehouse
- image sequences
- databases