A vague-rough set approach for uncertain knowledge acquisition

Lin Feng, Tianrui Li, Da Ruan, Shirong Gou

Research outputpeer-review


By combining both vague sets and rough sets in fuzzy data processing, we propose a vague-rough set approach for extracting knowledge under uncertain environments. We compute all attribute reductions using the vague-rough lower approximation distribution, concepts of attribute reduction and the discernibility matrix in a vague decision information system (VDIS). Research results for extracting decision rules from the VDIS show the proposed approaches extend the corresponding method in classical rough set theory and provide a new avenue to uncertain vague knowledge acquisition.
Original languageEnglish
Pages (from-to)837-843
JournalKnowledge-Based Systems
Issue number6
StatePublished - 3 Apr 2011

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