Keyphrases
- road network
- shortest path
- moving objects
- location based services
- travel time
- uncertain objects
- uncertain data
- spatial databases
- spatial networks
- probability density function
- geographic information systems
- road segments
- nearest neighbor queries
- distance computation
- nearest neighbor search
- spatial queries
- range searching
- efficient processing
- xml documents
- outlier detection
- query processing
- dimensionality reduction
- multi dimensional
- em algorithm
- range queries