Liangliang Cao John R. Smith Zhen Wen Zhijun Yin Xin Jin Jiawei Han BlueFinder: estimate where a beach photo was taken. 469-470 2012 WWW (Companion Volume) http://doi.acm.org/10.1145/2187980.2188081 conf/www/2012c db/conf/www/www2012c.html#CaoSWYJH12