Mislove : We trace the thoughts of a significant fraction of the population . He 's researching profiles of all Twitter users based on their thoughts . In the past , researchers studying traces of human communication , such as phone records , have shown that the social network that connects us has rich hidden complexity . Research looks , for example , for occurrences of ` ` happy '' or ` ` unhappy '' thoughts in tweets .
Mislove : We trace the thoughts of a significant fraction of the population . He 's researching profiles of all Twitter users based on their thoughts . Research looks , for example , for occurrences of ` ` happy '' or ` ` unhappy '' thoughts in tweets .