The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions

The communication within Internet auction systems proceeds as a rule under the situation in which users are not in physical contact nor they do not know anything of each other. They have therefore to rely on reputation mechanisms implemented within these online systems. Such mechanisms help to creat...

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Autores principales:	Beranek,Ladislav, Knizek,Jiri
Lenguaje:	English
Publicado:	Universidad de Talca 2012
Materias:	Reputation Trust Online auction Belief functions Contextual discounting Belief discounting
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-18762012000100004
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spelling	oai:scielo:S0718-187620120001000042018-10-12The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online AuctionsBeranek,LadislavKnizek,Jiri Reputation Trust Online auction Belief functions Contextual discounting Belief discounting The communication within Internet auction systems proceeds as a rule under the situation in which users are not in physical contact nor they do not know anything of each other. They have therefore to rely on reputation mechanisms implemented within these online systems. Such mechanisms help to create a trustworthy environment on the basis of additional attributes associated with users and their roles. The trustworthy environment in online auction systems (trust of the system itself and trust among users of this virtual world) is the essential element for these systems functioning. This paper introduces a trust model based on reputation while it takes into account possible fraudulent behavior of users in online auctions as contextual information. The reputation is calculated from user’s evaluations (feedback) following performed transactions. Information about possible fraudulent behavior is additional information determining the reliability of the user’s reputation in our trust model. Reputation and fraudulent behavior are expressed in a form of belief functions and the resulting user’s trustfulness is calculated. The case study shows that the proposed approach is valid and may be applicable in real online auctions.info:eu-repo/semantics/openAccessUniversidad de TalcaJournal of theoretical and applied electronic commerce research v.7 n.1 20122012-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-18762012000100004en10.4067/S0718-18762012000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Reputation Trust Online auction Belief functions Contextual discounting Belief discounting
spellingShingle	Reputation Trust Online auction Belief functions Contextual discounting Belief discounting Beranek,Ladislav Knizek,Jiri The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
description	The communication within Internet auction systems proceeds as a rule under the situation in which users are not in physical contact nor they do not know anything of each other. They have therefore to rely on reputation mechanisms implemented within these online systems. Such mechanisms help to create a trustworthy environment on the basis of additional attributes associated with users and their roles. The trustworthy environment in online auction systems (trust of the system itself and trust among users of this virtual world) is the essential element for these systems functioning. This paper introduces a trust model based on reputation while it takes into account possible fraudulent behavior of users in online auctions as contextual information. The reputation is calculated from user’s evaluations (feedback) following performed transactions. Information about possible fraudulent behavior is additional information determining the reliability of the user’s reputation in our trust model. Reputation and fraudulent behavior are expressed in a form of belief functions and the resulting user’s trustfulness is calculated. The case study shows that the proposed approach is valid and may be applicable in real online auctions.
author	Beranek,Ladislav Knizek,Jiri
author_facet	Beranek,Ladislav Knizek,Jiri
author_sort	Beranek,Ladislav
title	The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
title_short	The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
title_full	The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
title_fullStr	The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
title_full_unstemmed	The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions
title_sort	usage of contextual discounting and opposition in determining the trustfulness of users in online auctions
publisher	Universidad de Talca
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-18762012000100004
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The Usage of Contextual Discounting and Opposition in Determining the Trustfulness of Users in Online Auctions

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