Optimal granularity selections of multigranulation q⁃RO fuzzy rough sets under bounded rationality and their applications in merger and acquisition target selections
有限理性通常指决策者困顿于信息处理能力有限的自然状态,该状态是决策者在实际决策情境中需要面对的常态,因而有必要研究有限理性下的决策问题.多粒度粗糙集在多属性群决策分析领域的优势在于运算效率高,并能结合决策风险,然而多数基于多粒度粗糙集的多属性群决策方法并未考虑有限理性这一实际情境.以q⁃RO(q⁃Rung Orthopair)模糊集为背景,首先提出乐观与悲观多粒度q⁃RO模糊粗糙集模型;接着在并购对象选择的背景下,依据交互式多属性决策(Portuguese of Interactive and Multi⁃criteria Decision Making,TODIM)法来处理有限理性下的决策信息,发展多粒度q⁃RO模糊粗糙集的最优粒度选择机制并建立相应的多属性群决策方法;最后结合并购对象选择的实际算例验证了所建立模型与方法的有效性.
Bounded rationality usually refers to a natural state that decision makers are limited to finite information processing abilities,and it is normal for them to face bounded rationality in practical decision making scenarios. Thus,studying corresponding decision making problems under bounded rationality is imperative. Multigranulation rough sets (MGRS) own two merits in the field of multi⁃attribute group decision making (MAGDM),i.e.,high computational efficiencies and integrating decision risks. However,most MGRS⁃based MAGDM methods fail to consider the context of bounded rationality. This paper takes q⁃RO (q⁃rung orthopair) fuzzy sets as the background and the concept of optimistic and pessimistic multigranulation q⁃RO fuzzy rough sets is put forward at first. Then,under the context of merger and acquisition target selections,the TODIM(Portuguese of Interactive and Multi⁃criteria Decision Making) method is utilized to process decision making information under bounded rationality,and optimal granularity selection schemes of multigranulation q⁃RO fuzzy rough sets along with corresponding MAGDM methods are further developed. At last,a real⁃life case study for merger and acquisition target selections is investigated to reveal the validity of the constructed models and methods.
Keywords:bounded rationality
;
multigranulation rough sets
;
multi⁃attribute group decision making
;
q⁃RO fuzzy sets
;
TODIM
;
merger and acquisition target selections
Ren Rui, Zhang Chao, Pang Jifang. Optimal granularity selections of multigranulation q⁃RO fuzzy rough sets under bounded rationality and their applications in merger and acquisition target selections. Journal of nanjing University[J], 2020, 56(4): 452-460 doi:10.13232/j.cnki.jnju.2020.04.003
多粒度粗糙集由Qian et al[7-8]提出,不仅能同时融合多个二元关系来而提升运算效率,而且可以通过融入“求同存异”与“求同排异”这两类信息融合策略来处理风险型决策问题[9-10].学者们已从不同视角系统研究了基于多粒度粗糙集的多属性群决策方法并广泛应用于并购对象选择、人岗匹配、应急决策等诸多领域[11-16].
由于多粒度粗糙集在求解q⁃RO模糊多属性群决策问题时会遇到粒度选择的问题,即如何选择多粒度q⁃RO模糊粗糙集的最优粒度.本文在有限理性下依据交互式多属性决策(Portuguese of Interactive and Multi⁃criteria Decision Making,TODIM)法[24]来进行粒度选择,进而建立多粒度q⁃RO模糊粗糙集的最优粒度选择机制.最后,本文以并购对象选择问题为应用背景,进一步提出基于多粒度q⁃RO模糊粗糙集最优粒度选择的多属性群决策方法并进行算例研究.
... 多粒度粗糙集由Qian et al[7-8]提出,不仅能同时融合多个二元关系来而提升运算效率,而且可以通过融入“求同存异”与“求同排异”这两类信息融合策略来处理风险型决策问题[9-10].学者们已从不同视角系统研究了基于多粒度粗糙集的多属性群决策方法并广泛应用于并购对象选择、人岗匹配、应急决策等诸多领域[11-16]. ...
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... 多粒度粗糙集由Qian et al[7-8]提出,不仅能同时融合多个二元关系来而提升运算效率,而且可以通过融入“求同存异”与“求同排异”这两类信息融合策略来处理风险型决策问题[9-10].学者们已从不同视角系统研究了基于多粒度粗糙集的多属性群决策方法并广泛应用于并购对象选择、人岗匹配、应急决策等诸多领域[11-16]. ...
... 多粒度粗糙集由Qian et al[7-8]提出,不仅能同时融合多个二元关系来而提升运算效率,而且可以通过融入“求同存异”与“求同排异”这两类信息融合策略来处理风险型决策问题[9-10].学者们已从不同视角系统研究了基于多粒度粗糙集的多属性群决策方法并广泛应用于并购对象选择、人岗匹配、应急决策等诸多领域[11-16]. ...
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... 多粒度粗糙集由Qian et al[7-8]提出,不仅能同时融合多个二元关系来而提升运算效率,而且可以通过融入“求同存异”与“求同排异”这两类信息融合策略来处理风险型决策问题[9-10].学者们已从不同视角系统研究了基于多粒度粗糙集的多属性群决策方法并广泛应用于并购对象选择、人岗匹配、应急决策等诸多领域[11-16]. ...
... Peng and Lin[23]给出了构建q⁃RO模糊距离度量需要满足的要求,接下来本文给出两个q⁃RO模糊数之间的欧几里得距离. ...
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1992
... 由于多粒度粗糙集在求解q⁃RO模糊多属性群决策问题时会遇到粒度选择的问题,即如何选择多粒度q⁃RO模糊粗糙集的最优粒度.本文在有限理性下依据交互式多属性决策(Portuguese of Interactive and Multi⁃criteria Decision Making,TODIM)法[24]来进行粒度选择,进而建立多粒度q⁃RO模糊粗糙集的最优粒度选择机制.最后,本文以并购对象选择问题为应用背景,进一步提出基于多粒度q⁃RO模糊粗糙集最优粒度选择的多属性群决策方法并进行算例研究. ...
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2016
... 为方便进行对比性分析,以Zhang et al[25]的算例背景为例进行决策分析.设中国某钢铁企业计划从五家目标企业中选择适合企业未来发展的最优目标企业进行并购操作,即论域,论域 ...
... 在Zhang et al[25]的方法中,依据,,,进一步计算合成乐观多粒度q⁃RO模糊粗糙近似与合成悲观多粒度q⁃RO模糊粗糙近似如下: ...