Rattenbury, T., Good, N. & Naaman, M. (2007). Towards automatic extraction of event and place semantics from flickr tags. SIGIR '07: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (p./pp. 103--110), New York, NY, USA: ACM Press. ISBN: 978-1-59593-597-7