An attempt of reconstruction of object-oriented rough set models

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In this paper, we attempt revising the object-oriented rough set (for short, OORS) model proposed by the authors. The OORS model treats semi-structured data in the framework of rough sets by using structural hierarchies among objects, and semi-structured decision rules represent structural characteristics among objects. The revised OORS model we propose in this paper has almost the same representation ability of the previous model and the formulation of the revised model is simpler than the previous model.

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