The preference analysis is a class of important issues in multi-criteria ordinal decision making.The rough set is an effective approach to handle preference analysis.In order to solve the multi-criteria preference analysis problems,this paper improves the preference relation rough set model and expands it to multi-granulation cases.Cost is also an important issue in the field of decision analysis.Taking the cost into consideration,we also expand the model to the cost sensitive multi-granulation preference relation rough set.Some theorems are represented,and the granule structure selection based on approximation quality is investigated.The experimental results show that the multi-granulation preference rough set approach with the consideration of cost has a better performance in granule structure selection than that without cost consideration.
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机译：Flora Costa Marques的职业生涯：Aurora de Afonso Costa护理学校的前学生（1950-1983）Flora Costa Marques的职业技工：护理学校Aurora de Afonso Costa的前学生（1950-1983） Flora Costa Marques的职业轨迹：Afonso Costa护理学校的前极光学生（1950-1983）
