Conference PaperMTrajRec: Map-Constrained Trajectory Recovery via Seq2Seq Multi-task LearningRen, Huimin; Ruan, Sijie; Li, Yanhua; Bao, Jie; Meng, Chuishi; Li, Ruiyuan; Zheng, Yu2021-08-1410326792KDD '21: Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery & Data Mining1410 to 1419https://doi.org/10.1145/3447548.34672381942680; 1952085National Science Foundation