“…Besides social media data, many researchers use mobility data, such as mobile phone records and GPS traces, usually in combination with traditional data, to predict and eventually prevent crime [6,11,26,70,92], to compare how the different factors correlate with crime in various cities [23], and to estimate deprivation and objective well-being [24,61,62,78]. In addition, researchers, combine social media data with mobile phone records to infer human migration and evaluate migration events [18,75] and use GPS data, combined with subjective and objective data, to study perceived safety [21]. Additionally, the volume and momentum of web search queries, such as Google Trends, provide useful indicators of periods of civil unrest over several countries [63,64], and contribute in capturing a decline in domestic violence calls per capita when immigration enforcement awareness increases [54].…”