“…The usage data of mobile-phones is used in a variety of different areas, such as during the COVID-19 pandemic (Pepe, Bajardi, Gauvin, Privitera, Lake, Cattuto, and Tizzoni 2020;Jia, Lu, Yuan, Xu, Christakis, Jia, and Nicholas 2020;Gao, Rao, Kang, Liang, Kruse, Doepfer, Sethi, Reyes, Patz, and Yandell 2020;Jeffrey, Walters, Ainslie, Eales, Ciavarella, Bhatia, Hayes, Baguelin, Boonyasiri, Brazeau et al 2020;Yabe, Tsubouchi, Fujiwara, Wada, Sekimoto, and Ukkusuri 2020;Vollmer, Mishra, Juliette et al 2020;Xu, Gutierrez, Mekaru, Sewalk, Goodwin, Loskill, Cohn, Hswen, Hill, Cobo, Zarebski, Li, Wu, Hulland, Morgan, Wang, O'Brien, Scarpino, Brownstein, Pybus, Pigott, and Kraemer 2020;Santamaria Serna Carlos, Sermi, Spyratos, Iacus, Annunziato, Tarchi, and Vespe 2020;Iacus Stefano, Serna, Sermi, Spyratos, Tarchi, and Vespe 2020a,b;Heuzroth 2020), customer segmentation (Aheleroff 2011), identification of personality traits and lifestyle (Chittaranjan, Jan, and Gatica-Perez 2011;Hillebrand, Khan, Peleja, and Oliver 2020), the analysis of large social networks (Aksu, Korpeoglu, and Ulusoy 2019;Al-Molhem, Rahal, and Dakkak 2019;Aledavood, Lehmann, and Saramäki 2018), hotspot detection (Nika, Ismail, Zhao, Gaito, Rossi, and Zheng 2016), prediction of movement (Dao, Le, and Yoon 2019), mode of transport identification (Zhao, Bucher, Martin, and Raubal 2020), credit scoring (Liu, Ma, Zhao, and Zou 2018), disaster recovery (Andrade, Layedra, Vaca, and Cruz 2019;Marzuoli and Liu 2019), analysis of sleeping behavior of the population (Monsivais, Bhattacharya, Ghosh, Dunbar, and Kaski 2017), migration (Isaacman, Frias-Martinez, and Frias-Martinez 2018) and land usage classification (Shi, Lv, Seng, Xing, and Chen 2019;Lenormand, Picornell, Cantú-Ros, Louail, Herranz, Barthelemy, Frías-Martínez, Miguel, and Ramasco 2015)...…”