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中文摘要：
通过分析乐观和悲观多粒度优势关系粗糙集下近似的决策过程,提出了一种新的广义多粒度优势关系粗糙集,并将乐观多粒度优势关系粗糙集和悲观多粒度优势关系粗糙集统一到广义多粒度优势粗糙集模型中.然后,比较了这3种多粒度优势关系粗糙集的下近似、上近似和度量因子之间的关系.最后讨论了广义多粒度优势关系粗糙集的一些基本性质.
英文摘要：
On the base of the lower approximation sets,the decision-making process is analyzed by the optimism and pessimism multigranulation dominance-based rough sets. A new generalized multigranulation dominancebased rough set is put forward,and the rough sets model of the optimism and pessimism multigranulation dominance-based rough set will be unified to it. Then,the relationship of the lower approximation,the upper approximation and the measurement factors are compared among the generalized multigranulation dominance-based rough set,the optimism multigranulation rough set and pessimism multigranulation rough set. Finally some basic properties of the generalized multigranulation dominance-based rough set are discussed.
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