The fuzzy set based group technology approaches are analyzed, and the major problems of existing approaches are pointed out.
系统归纳和分析了模糊技术在成组技术中应用的国内外研究方法，提出了现有方法存在的主要问题。
By combining fuzzy set theory and rough set theory, rough fuzzy set model and fuzzy rough set model were proposed, and the uncertain measurement approaches were established.
人们将粗糙集理论与模糊集理论相结合，提出了粗糙模糊集模型和模糊粗糙集模型，并给出了相应的不确定性度量方法。
This paper does a preliminary approaches on decision making levels, evaluating feature indexes, fuzzy set method of summarizing the expert knowledge in the process of evaluating alternatives.
本文研究了该系统方案选择中的决策分层、特征指标的确定、对策方案评估的模糊优选理论与模型、以及总结专家经验的模糊数学方法。
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