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A heuristic algorithm for trust-oriented service provider selection in complex social networks (2010)
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| Venue: | In SCC |
| Citations: | 8 - 7 self |
BibTeX
@INPROCEEDINGS{Liu10aheuristic,
author = {Guanfeng Liu and Yan Wang and Mehmet A. Orgun and Ee-peng Lim},
title = {A heuristic algorithm for trust-oriented service provider selection in complex social networks},
booktitle = {In SCC},
year = {2010},
pages = {130--137}
}
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Abstract
Abstract — In a service-oriented online social network con-sisting of service providers and consumers, a service consumer can search trustworthy service providers via the social network. This requires the evaluation of the trustworthiness of a service provider along a certain social trust path from the service consumer to the service provider. However, there are usually many social trust paths between participants in social networks. Thus, a challenging problem is which social trust path is the optimal one that can yield the most trustworthy evaluation result. In this paper, we first present a novel complex social network structure and a new concept, Quality of Trust (QoT). We then model the optimal social trust path selection with multiple end-to-end QoT constraints as a Multi-Constrained Optimal Path (MCOP) selection problem which is NP-Complete. For solving this challenging problem, we propose an efficient heuristic algorithm, H OSTP. The results of our experiments conducted on a large real dataset of online social networks illustrate that our proposed algorithm significantly outperforms existing approaches. I.
Keyphrases
service provider trust-oriented service provider selection complex social network heuristic algorithm service consumer challenging problem social network certain social trust path service-oriented online social network con-sisting new concept many social trust path social trust path online social network multiple end-to-end qot constraint novel complex social network structure optimal one large real dataset trustworthy service provider efficient heuristic algorithm multi-constrained optimal path selection problem optimal social trust path selection trustworthy evaluation result
