Visualization for contextual information using CoordiNavi

A model of information visualization is proposed for the complex and entangled concept. In this model, 1) each piece of information is labeled with words as a concept, 2) relations among the concepts depend on a context, 3) the context changes dynamically. Note that the context means flow of motivation for accessing information. These concepts represent network and tree structures. The network structure gives a viewpoint to use a user´s overview to spot and the tree structure gives a viewpoint of associative groups among concepts. The system which visualizes context changing, named CoordiNavi is proposed. CoordiNavi is improving in handling to follow context changing in real time.