Cheng, Zhiyuan, James Caverlee, Kyumin Lee, and Daniel Sui. “Exploring Millions of Footprints in Location Sharing Services”. Proceedings of the International AAAI Conference on Web and Social Media 5, no. 1 (August 3, 2021): 81-88. Accessed April 25, 2024. https://ojs.aaai.org/index.php/ICWSM/article/view/14109.