Chen Chen Sheng Li Haoliang Qi Muyun Yang Tiejun Zhao Research on Hybrid Index for Chinese IR. 606-610 2008 FSKD (4) http://dx.doi.org/10.1109/FSKD.2008.146 conf/fskd/2008-4 db/conf/fskd/fskd2008-4.html#ChenLQYZ08