[1]College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China;
[1]College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China;
[1]College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China;
[1]College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China;
Spatial crowdsourcing; Task recommendation; Privacy control; Reward;