Keyphrases
- learning to rank
- spatial networks
- shortest path
- road network
- ranking functions
- loss function
- metric space
- information retrieval
- travel time
- k nearest neighbor
- ranking svm
- document retrieval
- mobile objects
- moving objects
- collaborative filtering
- trajectory data
- spatial queries
- supervised learning
- ranking algorithm
- test collection
- text classification
- multi dimensional
- high dimensional