Yang Li Binxing Fang Li Guo Zhi-Hong Tian Yong-Zheng Zhang Zhi-Gang Wu UBSF: A novel online URL-Based Spam Filter. 332-339 2008 ISCC http://dx.doi.org/10.1109/ISCC.2008.4625689 conf/iscc/2008 db/conf/iscc/iscc2008.html#LiFGTZW08