Noulas, Anastasios, Salvatore Scellato, Cecilia Mascolo, and Massimiliano Pontil. “An Empirical Study of Geographic User Activity Patterns in Foursquare”. Proceedings of the International AAAI Conference on Web and Social Media 5, no. 1 (August 3, 2021): 570-573. Accessed August 15, 2022. https://ojs.aaai.org/index.php/ICWSM/article/view/14175.