摘要：Stroll becomes a major style of sightseeing. Most conventional systems for navigation or recommendation of sightseeing spots in such sightseeing style support efficient sightseeing by giving users detailed information of spots or routes. However, such detailed information may restrict movement and chance of discoveries for tourists. It is supposed that if tourists walk freely in a sightseeing area then they discover their favorite spots by themselves. Such experience may remain in tourists’ memories more strongly than that in which they visited recommended spots. Accordingly, our goal is to propose a system which shows recommended spots in a suggestive way. That is, our system gives a chance to walk to a direction of recommended spots, does not recommend a spot or a route to the spot obviously. In this paper, we consider how to provide information about spots on a map to make tourists feel like going to the direction on their own will. More precisely, we propose abstraction level of information about spots. The less information is inconvenience, the more opportunities for discoveries may be given to tourists. As a result of experiments, it was demonstrated that a medium-level of abstraction has a good balance of guidance and free activity.
