Xiaopeng Luo Zhenzhou Lu Xin Xu 0006 A fast computational method for moment-independent uncertainty importance measure. 19-27 2014 185 Comput. Phys. Commun. 1 https://doi.org/10.1016/j.cpc.2013.08.006 db/journals/cphysics/cphysics185.html#LuoLX14