Reasoning about Advisors for Seller Selection in E-Marketplaces via POMDPs (bibtex)
by Frans A. Oliehoek, Ashwini A. Gokhale and Jie Zhang
Abstract:
In an e-marketplace populated with a large number of sellers, some of which may be dishonest, the selection of good sellers to do business with is crucial but challenging especially when buyers do not have much experience with these sellers. In this paper we introduce the SALE POMDP, a framework for the selle selection problem that allows the decision maker to reason both about the quality of the sellers, as well as the trustworthiness of the advisors. In particular, the framework allows the agent to ask advisors about the trustworthiness of other advisors while still offering the benefit of optimally trading off information gathering and exploitation of knowledge as afforded by a POMDP based approach. Via this model, we present a preliminary investigation on the benefit of reasoning about trustworthiness of advisors. We also demonstrate how this enables incorporation of trust propagation as an integral part of the decision making process.
Reference:
Reasoning about Advisors for Seller Selection in E-Marketplaces via POMDPs (Frans A. Oliehoek, Ashwini A. Gokhale and Jie Zhang), In 15th International Workshop on Trust in Agent Societies (TRUST12), 2012.
Bibtex Entry:
@InProceedings{Oliehoek12TRUST,
 author = {Frans A. Oliehoek and Ashwini A. Gokhale and Jie Zhang},
 title = {Reasoning about Advisors for Seller Selection in
	 E-Marketplaces via {POMDPs} },
 booktitle = {15th International Workshop on Trust in Agent Societies (TRUST12)},
 month = jun,
 year = 2012,
 OPTpages = {},
 bib2html_rescat = {Multiagent systems - decentralized (approximate) planning under uncertainty},
 bib2html_pubtype = {Refereed Conference (International)},
 abstract =  {
 In an e-marketplace populated with a large number of sellers,
 some of which may be dishonest, the selection of good sellers
 to do business with is crucial but challenging especially when
 buyers do not have much experience with these sellers. In this
 paper we introduce the SALE POMDP, a framework for the selle
 selection problem that allows the decision maker to reason
 both about the quality of the sellers, as well as the
 trustworthiness of the advisors. In particular, the framework
 allows the agent to ask advisors about the trustworthiness of
 other advisors while still offering the benefit of optimally
 trading off information gathering and exploitation of
 knowledge as afforded by a POMDP based approach. Via this
 model, we present a preliminary investigation on the benefit
 of reasoning about trustworthiness of advisors. We also
 demonstrate how this enables incorporation of trust
 propagation as an integral part of the decision making
 process.
 },
url={http://people.csail.mit.edu/fao/docs/Oliehoek12TRUST.pdf}
}
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