Pornprobe: an LDA-SVM based pornography detection system. - Sheng Tang; Jintao Li 001; Yongdong Zhang 001; Cheng Xie; Ming Li; Yizhi Liu; Xiufeng Hua; Yantao Zheng; Jinhui Tang 001; Tat-Seng Chua (ACM Multimedia, 2009)