@inproceedings{CIKM15personalized,
  title={Personalized Trip Recommendation with POI Availability and Uncertain Traveling Time},
  author={Zhang, Chenyi and Liang, Hongwei and Wang, Ke and Sun, Jianling},
  booktitle={Proceedings of the 24th ACM International on Conference on Information and Knowledge Management},
  pages={911--920},
  year={2015},
  organization={ACM}
}