Visualization of Relationship between Residents Using Passing-each-other Data Toward Resident-centered Vitalization of Local Community

We are aiming to achieve resident-centered vitalization of a local community utilizing ICT (Information Communication Technology). Relationship between residents in a local community should be one of social assets, and how to make use of the relationship is significant to vitalization of a local community. If residents can be aware of their invisible relationship that they are usually unconscious, and if they understand its importance, they could vitalize their community through sustaining and promoting it? That is the concept of resident-centered vitalization of a local community. In this paper, we propose a method of relationship visualization of residents using their passing-each-other data acquired through Bluetooth in smartphones. The number and frequency of passing-each-other between individual residents are analyzed, normalized and represented as a graph. Through users’ evaluation, we could confirm that the proposed representation with graph is adequate as a tool to visualize the relation between residents in a local community.