Changyun Zhu Kun Li Qin Lv Li Shang Robert P. Dick iScope: personalized multi-modality image search for mobile devices. 277-290 2009 MobiSys http://doi.acm.org/10.1145/1555816.1555845 conf/mobisys/2009 db/conf/mobisys/mobisys2009.html#ZhuLLSD09