How to exploit big data from social networks: a subjective well–being indicator via Twitter

In our research we apply a new technique of opinion analysis over Twitter data to propose a new indicator of perceived and subjective well- being: The SWBI examines many dimension of individual and social life. In the purpose to investigate whether SWBI and its single components may ad- equately represent the reaction of a community to changes in everyday life conditions, we propose a comparative analysis, among the Italian provinces, of perceived well-being, measured with SWBI, with objective well-being, mea- sured with the Il Sole 24 Ore QoL Index. The idea is to create a composite well-being indicator which mixes stable official statistics and fluctuating so- cial media data.