What Happened Near Big Ben: Event-Driven Landmark Mining from Flickr

The fast development of Internet and personal electronic devices has led to a dramatic growth of landmark images available on social media sites such as Flickr. With their informative and attractive content, landmark images have received considerable attention in multimedia research community. Most of existing methods focus on exploring landmark images by their spatial distribution, while largely ignoring the temporal aspect. Through digging the temporal information in the shared images, we can reveal the series of historical moments of landmarks, which could be useful for social studies and attractive to tourists. In this paper, we propose a scheme named Landmark Timeline Construction(LTC), which automatically mines and selects diverse images on historical events of a landmark simply from Flickr. In our scheme, Time Interval Selection Algorithm is proposed to handle the limitation of the existing methods on the fixed time interval by assigning the optimal ones to different tags. The experimental results demonstrate the effectiveness of our methods.