To avoid the excessive subjectivity influenced by the conventional determination methods of weight factor, the rough set was introduced to the solution of the weight factor in the extenics evaluation.
Studying deeply on shear strength characteristics of rough cement face has an important meaning for precise determination of shear strength parameter and analysis on failure mechanics.
深入研究粗糙胶结面抗剪强度特性对准确确定其抗剪强度参数值及分析其破坏机理具有重要意义。
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Attribute reduction is one of the key problems in rough set theory, and determination of core attribute is the basis to solve the problem of attribute reduction.