Detecting Cruising Flagged Taxis' Passenger-Refusal Behaviors Using Traffic Data and Crowdsourcing. - Li Jin; Ming Han; Gang-Li Liu; Ling Feng (UIC/ATC/ScalCom, 2014)

PhotoPrev: Unifying Context and Content Cues to Enhance Personal Photo Revisitation. - Li Jin; Gang-Li Liu; Liang Zhao 023; Ling Feng (J. Comput. Sci. Technol., 2015)

A Method to Support Difficult Re-finding Tasks. - Gang-Li Liu; Ling Feng (CoRR, 2016)

A PDF document re-finding system with a Q&A wizard interface. - Gang-Li Liu; Baihui Jiang; Ling Feng (Knowl. Based Syst., 2017)

Personal Web Revisitation by Context and Content Keywords with Relevance Feedback. - Li Jin; Ling Feng; Gang-Li Liu; Chaokun Wang (IEEE Trans. Knowl. Data Eng., 2017)