A Comparative Study of Potential-of-Interest Days on a Sightseeing Spot Recommender

We have already proposed a sightseeing spot recommendation system based on information on the Web. An input for the prototype system was a user´s favorite location or facility. Our system computed a similarity measure between a target location that a user selects and each sightseeing spot in our database. One interesting feature for the similarity calculation in our system is a time sequence of each sightseeing spot. The prototype system used the number of hits in Yahoo Chiebukuro for the feature. We regard the time sequence as the potential-of-interest days. In this paper, we focus another information resource for the time sequence feature, Panoramio. We compare the two information resources, and analyze the difference. We show the potential merits of combination of Yahoo Chiebukuro and panoramio for sightseeing spot recommendation.