@inproceedings{liang2018route,  
  title={Top-k Route Search through Submodularity Modeling of Recurrent POI Features},  
  author={Liang, Hongwei and Wang, Ke},  
  booktitle={Proceedings of the 41st International ACM SIGIR Conference on Research & Development in Information Retrieval},  
  year={2018},  
  organization={ACM}  
}