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<dc:title xml:lang="pl"><![CDATA[Internet shopping optimization problem]]></dc:title>
<dc:creator><![CDATA[Błażewicz, Jacek]]></dc:creator>
<dc:creator><![CDATA[Kovalyov, Y. Mikhail]]></dc:creator>
<dc:creator><![CDATA[Musiał, Jędrzej]]></dc:creator>
<dc:creator><![CDATA[Urbański, Andrzej P.]]></dc:creator>
<dc:creator><![CDATA[Wojciechowski, Adam]]></dc:creator>
<dc:subject xml:lang="pl"><![CDATA[algorithms]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[computational complexity]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[combinatorial algorithms]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[optimization]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Internet shopping]]></dc:subject>
<dc:description xml:lang="pl"><![CDATA[A high number of Internet shops makes it difficult for a customer to review manually all the available offers and select optimal outlets for shopping. A partial solution to the problem is brought by price comparators which produce price rankings from collected offers. However, their possibilities are limited to a comparison of offers for a single product requested by the customer. The issue we investigate in this paper is a multiple-item multiple-shop optimization problem, in which total expenses of a customer to buy a given set of items should be minimized over all available offers. In this paper, the Internet Shopping Optimization Problem (ISOP) is defined in a formal way and a proof of its strong NP-hardness is provided. We also describe polynomial time algorithms for special cases of the problem.]]></dc:description>
<dc:publisher><![CDATA[Zielona Góra: Uniwersytet Zielonogórski]]></dc:publisher>
<dc:contributor><![CDATA[Korbicz, Józef (1951- ) - red.]]></dc:contributor>
<dc:contributor><![CDATA[Uciński, Dariusz - red.]]></dc:contributor>
<dc:date><![CDATA[2010]]></dc:date>
<dc:type xml:lang="pl"><![CDATA[artykuł]]></dc:type>
<dc:identifier><![CDATA[http://www.zbc.uz.zgora.pl/repozytorium/Content/46859/AMCS_2010_20_2_13.pdf]]></dc:identifier>
<dc:identifier><![CDATA[https://zbc.uz.zgora.pl/repozytorium/dlibra/publication/54953/edition/46859/content]]></dc:identifier>
<dc:identifier><![CDATA[oai:zbc.uz.zgora.pl:46859]]></dc:identifier>
<dc:source xml:lang="pl"><![CDATA[AMCS, Volume 20, Number 2 (2010)]]></dc:source>
<dc:source xml:lang="pl"><![CDATA[https://www.amcs.uz.zgora.pl/?action=paper&paper=498]]></dc:source>
<dc:language><![CDATA[eng]]></dc:language>
<dc:relation><![CDATA[oai:zbc.uz.zgora.pl:publication:54953]]></dc:relation>
<dc:rights xml:lang="pl"><![CDATA[Biblioteka Uniwersytetu Zielonogórskiego]]></dc:rights>
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