Chang, Fanfan; Ma, Jianmin Interval-set rough approximations based on a relation matrix. (Chinese. English summary) Zbl 1463.68094 J. Shandong Univ., Nat. Sci. 55, No. 3, 98-106 (2020). MSC: 68T37 PDFBibTeX XMLCite \textit{F. Chang} and \textit{J. Ma}, J. Shandong Univ., Nat. Sci. 55, No. 3, 98--106 (2020; Zbl 1463.68094)
Zhang, Chao; Liang, Ying; Fang, Haoshan Social network information recommendation method of supporting privacy protection. (Chinese. English summary) Zbl 1463.91103 J. Shandong Univ., Nat. Sci. 55, No. 3, 9-18 (2020). MSC: 91D30 68P25 PDFBibTeX XMLCite \textit{C. Zhang} et al., J. Shandong Univ., Nat. Sci. 55, No. 3, 9--18 (2020; Zbl 1463.91103)
Lin, Yanli; Liu, Xiaodong Research on local double relative quantitative decision-theoretic rough set for incomplete ordered information system. (Chinese. English summary) Zbl 1463.68104 J. Shandong Univ., Nat. Sci. 55, No. 3, 89-97 (2020). MSC: 68T37 PDFBibTeX XMLCite \textit{Y. Lin} and \textit{X. Liu}, J. Shandong Univ., Nat. Sci. 55, No. 3, 89--97 (2020; Zbl 1463.68104)
Yu, Ying; Wu, Xinnian; Wang, Lewei; Zhang, Yinglong A multi-label three-way classification algorithm based on label correlation. (Chinese. English summary) Zbl 1463.68069 J. Shandong Univ., Nat. Sci. 55, No. 3, 81-88 (2020). MSC: 68T05 62H30 68T37 PDFBibTeX XMLCite \textit{Y. Yu} et al., J. Shandong Univ., Nat. Sci. 55, No. 3, 81--88 (2020; Zbl 1463.68069)
Liu, Yingying; Mi, Jusheng; Liang, Meishe; Li, Leijun Three-way interval-set concept lattice. (Chinese. English summary) Zbl 1463.68085 J. Shandong Univ., Nat. Sci. 55, No. 3, 70-80 (2020). MSC: 68T30 68T37 PDFBibTeX XMLCite \textit{Y. Liu} et al., J. Shandong Univ., Nat. Sci. 55, No. 3, 70--80 (2020; Zbl 1463.68085)
Wen, Liuying; Yuan, Wei Clustering method for multi-label symbolic value partition. (Chinese. English summary) Zbl 1474.62251 J. Shandong Univ., Nat. Sci. 55, No. 3, 58-69 (2020). MSC: 62H30 05C81 60K50 PDFBibTeX XMLCite \textit{L. Wen} and \textit{W. Yuan}, J. Shandong Univ., Nat. Sci. 55, No. 3, 58--69 (2020; Zbl 1474.62251)
Yue, Zelun; Wang, Dong; Mao, Jianglong Improved certificateless signcryption scheme without bilinear pairing. (Chinese. English summary) Zbl 1463.68023 J. Shandong Univ., Nat. Sci. 55, No. 3, 51-57, 69 (2020). MSC: 68P25 94A60 94A62 PDFBibTeX XMLCite \textit{Z. Yue} et al., J. Shandong Univ., Nat. Sci. 55, No. 3, 51--57, 69 (2020; Zbl 1463.68023)
Wang, Jing; Fu, Shengmao Effect of fear factor on a predator-prey model with defense mechanism. (Chinese. English summary) Zbl 1463.34205 J. Shandong Univ., Nat. Sci. 55, No. 3, 121-126 (2020). MSC: 34C60 34C23 34D20 92D25 34C05 34D05 PDFBibTeX XMLCite \textit{J. Wang} and \textit{S. Fu}, J. Shandong Univ., Nat. Sci. 55, No. 3, 121--126 (2020; Zbl 1463.34205)
Wang, Jingjing; Lu, Yanqiong Existence of optimal positive solutions for Neumann boundary value problems of second order differential equations. (Chinese. English summary) Zbl 1463.34107 J. Shandong Univ., Nat. Sci. 55, No. 3, 113-120 (2020). MSC: 34B18 34B27 47N20 34B16 PDFBibTeX XMLCite \textit{J. Wang} and \textit{Y. Lu}, J. Shandong Univ., Nat. Sci. 55, No. 3, 113--120 (2020; Zbl 1463.34107)
Tang, Yiming; Zhang, Zheng; Lu, Qiming Gaussian kernel fuzzy \(C\)-means clustering driven by piecewise quadratic transfer function. (Chinese. English summary) Zbl 1474.62246 J. Shandong Univ., Nat. Sci. 55, No. 3, 107-112, 120 (2020). MSC: 62H30 62H86 PDFBibTeX XMLCite \textit{Y. Tang} et al., J. Shandong Univ., Nat. Sci. 55, No. 3, 107--112, 120 (2020; Zbl 1474.62246)