@inproceedings{KDD-2019-LiuTZLDX,
	author        = "Hao Liu and Yongxin Tong and Panpan Zhang and Xinjiang Lu and Jianguo Duan and Hui Xiong",
	booktitle     = "{Proceedings of the 25th International Conference on Knowledge Discovery and Data Mining}",
	doi           = "10.1145/3292500.3330660",
	isbn          = "978-1-4503-6201-6",
	pages         = "2314--2324",
	publisher     = "{ACM}",
	title         = "{Hydra: A Personalized and Context-Aware Multi-Modal Transportation Recommendation System}",
	year          = 2019,
}