T4 enables intelligent analytics over real-time and historical trajectories from vehicles. At the front end, we visualize the current traffic flow and result trajectories of different types of queries. At the back end, T4 is able to support multiple types of common queries over trajectories, with compact storage, efficient index and pruning algorithms [SIGIR'18].
Reinforcement learning-based traffic light controller learns by itself effectively to reduce traffic jams. We train the deep models for traffic flow prediction and traffic signal control to reduce traffic congestion.
TISP enables users’ interactive exploration of POIs and trajectories in their incremental trip planning. At the back end, TISP is able to support seven types of common queries over spatial-only, spatial-textual and textual-only data, based on our proposed unified indexing and search paradigm [WSDM'18]. At the front end, we propose novel visualization designs to present the result of different types of queries.
Sheng Wang, Yunzhuang Shen, Zhifeng Bao, Xiaolin Qin. Intelligent Traffic Analytics: From Monitoring to Controlling. ACM WSDM Demo 2019, pp 778-781 Melbourne, Australia. Dataset Poster
Sheng Wang, Mingzhao Li, Yipeng Zhang, Zhifeng Bao, David Alexander Tedjopurnomoy, Xiaolin Qin. Trip Planning by an Integrated Search Paradigm. ACM SIGMOD 2018 Demo, pp 1673-1676, Houston, U.S.A. (ERA/CORE A*). Demo Poster
Sheng Wang, Zhifeng Bao, J. Shane Culpepper, Zizhe Xie, Qizhi Liu, Xiaolin Qin. Torch: A Search Engine for Trajectory Data. ACM SIGIR 2018, pp 535-544, Ann Arbor Michigan, U.S.A. (ERA/CORE A*) Slides Code System.
Sheng Wang, Zhifeng Bao, Shixun Huang, and Rui Zhang. A Unified Processing Paradigm for Interactive Location-based Web Search. ACM WSDM 2018, pp 601-609, Los Angeles, U.S.A. (ERA/CORE A*). System
Sheng Wang, Zhifeng Bao, J. Shane Culpepper, Timos Sellis, and Gao Cong. Reverse k Nearest Neighbor Search over Trajectories. IEEE Transactions on Knowledge and Data Engineering (TKDE), 30(4): pp 757-771, 2018. (ERA/CORE A). Dataset Poster
Sheng Wang, Zhifeng Bao, J. Shane Culpepper, Timos Sellis, Mark Sanderson, and Xiaolin Qin. Answering Top-k Exemplar Trajectory Queries. IEEE ICDE 2017, pp 597-608, San Diego, U.S.A.(ERA/CORE A*). Slides