Publications

See my DBLP, Google Scholar and VBN at AAU.

Peer-Reviewed Journal Articles

• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Harry Kai-Ho Chan. Contact Tracing over Uncertain Indoor Positioning Data. IEEE Transactions on Knowledge and Data Engineering (TKDE). (Accepted in April 2023) (CCF A)
• Tiantian Liu, Zijin Feng, Huan Li, Hua Lu, Muhammad Aamir Cheema, Hong Cheng, Jianliang Xu. Towards Indoor Temporal-variation aware Shortest Path Query. IEEE Transactions on Knowledge and Data Engineering (TKDE), 35(1): 998-1012 (2023). (CCF A)
• Harry Kai-Ho Chan, Tiantian Liu, Huan Li, and Hua Lu. Time-Constrained Indoor Keyword-aware Routing: Foundations and Extensions. GeoInformatica, 2023.
• Huan Li, Tiantian Liu, Harry Kai-Ho Chan, Hua Lu. Spatial Data Analysis for Intelligent Buildings: Awareness of Context and Data Uncertainty. Frontiers in Big Data, Rising Stars in Data Mining and Management, 2022.
• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Lidan Shou. Towards Crowd-aware Indoor Path Planning. Proceedings of the 47th International Conference on Very Large Data Bases (PVLDB), 2021: 1365-1377. (CCF A)

Peer-Reviewed Conference Papers

• Jialiang Li, Tiantian Liu, Hua Lu: CLEAR: Ranked Multi-Positive Contrastive Representation Learning for Robust Trajectory Similarity Computation. 2024 25th IEEE International Conference on Mobile Data Management (MDM). IEEE 2024. (Best Paper Runner-up Award)
• Tiantian Liu, Zijin Feng, Huan Li, Hua Lu, Lidan Shou, and Jianliang Xu, “IKAROS: An Indoor Keyword-Aware Routing System,” accepted by IEEE 38th International Conference on Data Engineering (ICDE), 2022 (Demo Paper). (CCF A)
• Tiantian Liu. Spatial Queries for Indoor Location-based Services. 2022 23rd IEEE International Conference on Mobile Data Management (MDM). IEEE, 2022: 322-324.
• Harry Kai-Ho Chan, Tiantian Liu, Huan Li, Hua Lu. Time-Constrained Indoor Keyword-aware Routing. Proceedings of the 17th International Symposium on Spatial and Temporal Databases (SSTD), 2021: 74-84. (Best Research Paper Nomination)
• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Lidan Shou. Indoor Spatial Queries: Modeling, Indexing, and Processing. The 24th International Conference on Extending Database Technology (EDBT), 2021: 181-192. (CCF B)
• Tiantian Liu, Zijin Feng, Huan Li, Hua Lu, Muhammad Aamir Cheema, Hong Cheng, Jianliang Xu. Shortest Path Queries for Indoor Venues with Temporal Variations. IEEE 36th International Conference on Data Engineering (ICDE), 2020: 2014-2017. (CCF A)
• Zijin Feng, Tiantian Liu, Huan Li, Hua Lu, Lidan Shou, Jianliang Xu. Indoor Top-k Keyword-aware Routing Query. IEEE 36th International Conference on Data Engineering (ICDE), 2020: 1213-1224. (CCF A)

Technical Reports

• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Harry Kai-Ho Chan. Contact Tracing over Uncertain Indoor Positioning Data (Extended Version). arXiv preprint arXiv:2304.08838 (2023).
• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Lidan Shou. Towards Crowd-aware Indoor Path Planning(Extended Version). CoRR abs/2104.05480 (2021).
• Tiantian Liu, Huan Li, Hua Lu, Muhammad Aamir Cheema, Lidan Shou. An Experimental Analysis of Indoor Spatial Queries: Modeling, Indexing, and Processing. CoRR abs/2010.03910 (2020)