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New Attribute Reduction Algorithm on Fuzzy Decision Table.pdf
JOURNALOFELECTRONIC SCIENCEAND TECHNOLOGY,VOL.9,NO.2,JUNE2011 1O3
New AttributeReductionAlgorithm on
FuzzyDecisionTable
Hao·D·ongZhuandHong-C·hanLi
Abstrac lassical rough set has a limited applicationofhteclassicalroughsettheory.However,hte
processingcapacityin fuzzydecision table.Combining discretizeddecisionatblecannotretainthediscrepancyof
ufzzy setwith classicalrough set,attributereduction origina1attributevalue.whichwillresultintheinofrmation
algorithm onufzzy decisiontableisstudied.First,new losstoacertainextent.Inthissituation,inordertodevelop
simliariyt degree and new simliariyt category are itsapplicablerange,classicalrough sethteory shouldbe
defined.Inthemeantime,similariyt categoryclusters nitegratedwith anotherhteory thatcna dealwith fuzyz
whicharedividedbycondition aRributeareprovided. knowledge.
Andthen,twotheoremsarepresented.Subsequently,a Fuzyz settheory isa powerfultoolofsutdying the
new attributereductionalgorithm isproposed.Finally, problem offuzziness,faultiness,nad inaccuracy.Itcan
the new attribute reduction algorithm is verified adoptmembership dergeeto show hteufzzinessofsub—
boun daryvalueinset.Pawlak 【statedthatfuzzysettheory
through aperformanceevaluationdecisiontableofthe
self-repairingflight-controlsystem.Theresultshowsthe wasnotni confiictwithhteroughsethteory butacutally
proposed attributereduction algorithm isabletodeal complementarywitheachothenAndthen.Duboiseta1.
also indicated that hte two theories were different
wi thufzzydecisiontabletoacertainext
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