“…Diet self-monitoring and exercise management [52], [53], [83], [96] Understanding population eating patterns, episodes, and disorders [97] Tinnitus Tinnitus self measurement and retraining therapy [98], [99] Studying symptoms, causes, and treatments of tinnitus population [100], [101], [102], [103] COVID-19 Automatic self-diagnosis [104], [105], [106], [107] Population screening the spread of COVID-19 [108], [109], [110], [111] Contact tracing for infectious risk estimation [112], [113], [114], [115] Public Health Policy Evaluation and Development [116]- [118], [119]- [121], [122]- [124] tionnaires. For example, by studying the correlation between anxiety and behavioral indicators (e.g., activity locations, text messages, and calls) in a 54-students group over two weeks, Boukhechba et al [73] proposed flexible anxiety assessment methods for monitoring college students via mobile phone apps.…”