Keyphrases
- skyline queries
- query processing
- skyline computation
- efficient processing
- efficient computation
- query result
- query evaluation
- database queries
- query language
- result set
- aggregation queries
- sliding window
- user queries
- query logs
- user defined
- distributed environment
- data distribution
- approximate answers
- database
- range queries
- data objects
- user preferences
- index structure
- complex queries
- exact and approximate
- skyline points
- aggregate queries
- query formulation
- web search engines
- xml data
- nearest neighbor
- data sources
- database systems
- search engine