TY - Front. Comput. Sci. A1 - Hua MA,Zhigang HU T1 - Recommend trustworthy services using interval numbers of four parameters via cloud model for potential users Y1 - 2015-11-10 JF - Frontiers of Computer Science JO - Front. Comput. Sci. SP - 887 EP - 903 VL - 9 IS - 6 UR - https://journal.hep.com.cn/fcs N1 - 10.1007/s11704-015-4532-0 ER -