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<dc:title xml:lang="pl"><![CDATA[Relative sets and rough sets]]></dc:title>
<dc:creator><![CDATA[Mousavi, Amin]]></dc:creator>
<dc:creator><![CDATA[Jabedar-Maralani, Parviz]]></dc:creator>
<dc:subject xml:lang="pl"><![CDATA[rough sets]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[set theory]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[data analysis]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[multi-valued logic]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[interval sets]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[knowledge representation]]></dc:subject>
<dc:description xml:lang="pl"><![CDATA[In this paper, by defining a pair of classical sets as a relative set, an extension of the classical set algebra which is a counterpart of Belnap's four-valued logic is achieved. Every relative set partitions all objects into four distinct regions corresponding to four truth-values of Belnap's logic. Like truth-values of Belnap's logic, relative sets have two orderings; one is an order of inclusion and the other is an order of knowledge or information.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[By defining a rough set as a pair of definable sets, an integrated approach to relative sets and rough sets is obtained. With this definition, we are able to define an approximation of a rough set in an approximation space, and so we can obtain sequential approximations of a set, which is a good model of communication among agents.]]></dc:description>
<dc:publisher><![CDATA[Zielona Góra: Uniwersytet Zielonogórski]]></dc:publisher>
<dc:contributor><![CDATA[Grzymala-Busse, Jerzy - ed.]]></dc:contributor>
<dc:contributor><![CDATA[Świniarski, Roman W. - ed.]]></dc:contributor>
<dc:contributor><![CDATA[Zhong, Ning - ed.]]></dc:contributor>
<dc:contributor><![CDATA[Ziarko, Wojciech - ed.]]></dc:contributor>
<dc:date><![CDATA[2001]]></dc:date>
<dc:type xml:lang="pl"><![CDATA[artykuł]]></dc:type>
<dc:identifier><![CDATA[http://www.zbc.uz.zgora.pl/repozytorium/Content/58782/AMCS_2001_11_3_5.pdf]]></dc:identifier>
<dc:identifier><![CDATA[https://zbc.uz.zgora.pl/repozytorium/dlibra/publication/65565/edition/58782/content]]></dc:identifier>
<dc:identifier><![CDATA[oai:zbc.uz.zgora.pl:58782]]></dc:identifier>
<dc:source xml:lang="pl"><![CDATA[AMCS, volume 11, number 3 (2001)]]></dc:source>
<dc:source xml:lang="pl"><![CDATA[https://www.amcs.uz.zgora.pl/?action=papers&issue=29]]></dc:source>
<dc:language><![CDATA[eng]]></dc:language>
<dc:relation><![CDATA[oai:zbc.uz.zgora.pl:publication:65565]]></dc:relation>
<dc:rights xml:lang="pl"><![CDATA[Biblioteka Uniwersytetu Zielonogórskiego]]></dc:rights>
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