Huang, Aiping; Zhu, William Connectedness of graphs and its application to connected matroids through covering-based rough sets. (English) Zbl 1370.05118 Soft Comput. 20, No. 5, 1841-1851 (2016). MSC: 05C40 05B35 68P05 68T37 PDFBibTeX XMLCite \textit{A. Huang} and \textit{W. Zhu}, Soft Comput. 20, No. 5, 1841--1851 (2016; Zbl 1370.05118) Full Text: DOI arXiv
Liu, Yanfang; Zhu, William The matroidal structures of the second type of covering-based rough set. (English) Zbl 1444.68234 Ciucci, Davide (ed.) et al., Rough sets and knowledge technology. 10th international conference, RSKT 2015, held as part of the international joint conference on rough sets, IJCRS 2015, Tianjin, China, November 20–23, 2015. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 9436, 231-242 (2015). MSC: 68T37 05B35 PDFBibTeX XMLCite \textit{Y. Liu} and \textit{W. Zhu}, Lect. Notes Comput. Sci. 9436, 231--242 (2015; Zbl 1444.68234) Full Text: DOI
Li, Hui; Zhu, William Connectedness of graph and matroid by covering-based rough sets. (English) Zbl 1444.68148 Yao, Yiyu (ed.) et al., Rough sets, fuzzy sets, data mining, and granular computing. 15th international conference, RSFDGrC 2015, Tianjin, China, November 20–23, 2015. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 9437, 149-160 (2015). MSC: 68R10 05B35 05C40 68T37 PDFBibTeX XMLCite \textit{H. Li} and \textit{W. Zhu}, Lect. Notes Comput. Sci. 9437, 149--160 (2015; Zbl 1444.68148) Full Text: DOI
Liu, Yanfang; Zhao, Hong; Zhu, William Parametric matroid of rough set. (English) Zbl 1377.05025 Int. J. Uncertain. Fuzziness Knowl.-Based Syst. 23, No. 6, 893-908 (2015). MSC: 05B35 68T37 PDFBibTeX XMLCite \textit{Y. Liu} et al., Int. J. Uncertain. Fuzziness Knowl.-Based Syst. 23, No. 6, 893--908 (2015; Zbl 1377.05025) Full Text: DOI arXiv
Wang, Shiping; Zhu, Qingxin; Zhu, William; Min, Fan Graph and matrix approaches to rough sets through matroids. (English) Zbl 1355.68265 Inf. Sci. 288, 1-11 (2014). MSC: 68T37 05B35 05C50 PDFBibTeX XMLCite \textit{S. Wang} et al., Inf. Sci. 288, 1--11 (2014; Zbl 1355.68265) Full Text: DOI
Huang, Aiping; Zhao, Hong; Zhu, William Nullity-based matroid of rough sets and its application to attribute reduction. (English) Zbl 1328.68228 Inf. Sci. 263, 153-165 (2014). MSC: 68T37 05B35 PDFBibTeX XMLCite \textit{A. Huang} et al., Inf. Sci. 263, 153--165 (2014; Zbl 1328.68228) Full Text: DOI
Li, Qingyin; Zhu, William A matroidal structure of the upper approximations of covering-based rough sets defined by neighborhoods. (Chinese. English summary) Zbl 1313.03028 J. Shandong Univ., Nat. Sci. 49, No. 8, 80-85 (2014). MSC: 03E72 05B35 PDFBibTeX XMLCite \textit{Q. Li} and \textit{W. Zhu}, J. Shandong Univ., Nat. Sci. 49, No. 8, 80--85 (2014; Zbl 1313.03028)
Wang, Shiping; Zhu, Qingxin; Zhu, William; Min, Fan Rough set characterization for 2-circuit matroid. (English) Zbl 1285.68186 Fundam. Inform. 129, No. 4, 377-393 (2014). MSC: 68T37 05B35 PDFBibTeX XMLCite \textit{S. Wang} et al., Fundam. Inform. 129, No. 4, 377--393 (2014; Zbl 1285.68186) Full Text: DOI
Wang, Shiping; Zhu, William; Zhu, Qingxin; Min, Fan Four matroidal structures of covering and their relationships with rough sets. (English) Zbl 1316.05025 Int. J. Approx. Reasoning 54, No. 9, 1361-1372 (2013). MSC: 05B35 03E72 PDFBibTeX XMLCite \textit{S. Wang} et al., Int. J. Approx. Reasoning 54, No. 9, 1361--1372 (2013; Zbl 1316.05025) Full Text: DOI
Li, Qingyin; Zhu, William Covering cycle matroid. (English) Zbl 1302.05025 ISRN Appl. Math. 2013, Article ID 539401, 12 p. (2013). MSC: 05B35 68P05 PDFBibTeX XMLCite \textit{Q. Li} and \textit{W. Zhu}, ISRN Appl. Math. 2013, Article ID 539401, 12 p. (2013; Zbl 1302.05025) Full Text: DOI
Zhu, William; Wang, Shiping Rough matroids based on relations. (English) Zbl 1293.05036 Inf. Sci. 232, 241-252 (2013). MSC: 05B35 PDFBibTeX XMLCite \textit{W. Zhu} and \textit{S. Wang}, Inf. Sci. 232, 241--252 (2013; Zbl 1293.05036) Full Text: DOI
Wang, Shiping; Zhu, Qingxin; Zhu, William; Min, Fan Quantitative analysis for covering-based rough sets through the upper approximation number. (English) Zbl 1291.68390 Inf. Sci. 220, 483-491 (2013). MSC: 68T30 PDFBibTeX XMLCite \textit{S. Wang} et al., Inf. Sci. 220, 483--491 (2013; Zbl 1291.68390) Full Text: DOI
Tang, Jianguo; She, Kun; Min, Fan; Zhu, William A matroidal approach to rough set theory. (English) Zbl 1258.05022 Theor. Comput. Sci. 471, 1-11 (2013). MSC: 05B35 03E99 03E72 PDFBibTeX XMLCite \textit{J. Tang} et al., Theor. Comput. Sci. 471, 1--11 (2013; Zbl 1258.05022) Full Text: DOI
Liu, Yanfang; Zhu, William Matroidal structure of rough sets based on serial and transitive relations. (English) Zbl 1264.05028 J. Appl. Math. 2012, Article ID 429737, 16 p. (2012). MSC: 05B35 PDFBibTeX XMLCite \textit{Y. Liu} and \textit{W. Zhu}, J. Appl. Math. 2012, Article ID 429737, 16 p. (2012; Zbl 1264.05028) Full Text: DOI arXiv