TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - HAN Shuang-zhi, ZHANG Nan, ZHANG Zhong-xi T1 - Class-specific β distribution reduction in interval-valued decision systems Y1 - JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 66 EP - 77 VL - 55 IS - 11 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2020.268 ER -