Photo-sharing is currently becoming a huge part of social media activity. Several applications, with Instagram the most popular among them, represent people’s emotions. Such data pose new challenges for city data analysts as a lot of pictures are geo-tagged. City representation via images is not a new topic; it seems to us that Antonioni was one of the first with his “Blow-up”, who tried to catch the place by a camera click in his 1966 film Blowup. The digital era just brings new insights – as Ames and Naaman (2007) argued. Instagram covers additional aspects of this representation as sociality and functionality – we geo-tag places to give a special social signal of the places’ livability and share our emotional state-of-the-moment. Continue reading “Using data from geo-tagging to map the Happy City”→