Abstract
There are various approaches in robot-human interaction. In one approach, a robot is used as media. We will expect the robot to give us information and behave like as a presenter or a teacher before long. In order to indicate information properly in this case, the robot needs to know who is interested in what. In other words, measurement of interest is important. In this paper, we propose a map showing the distribution of people who interested in a certain object to help the robot's decision. We conducted a experiment in the real environment and evaluated the resultant map.