Semantic-aware Query Processing for Activity Trajectories.
Huiwen LiuJiajie XuKai ZhengChengfei LiuLan DuXian WuPublished in: WSDM (2017)
Keyphrases
- query processing
- database systems
- r tree
- database query processing
- aggregate queries
- motion patterns
- query optimization
- similarity search
- moving objects
- cost model
- inverted index
- databases
- trajectories of moving objects
- activity patterns
- index structure
- data mining
- data sets
- trajectory data
- neural network
- configuration space
- human activities
- activity analysis
- processing queries
- computer vision