TAILIEUCHUNG - A trust model for new member in multiagent system

In this paper, we introduce a novel mechanism for computing trust of a new coming partner by means of some similarity in a profile of the new agent and the ones of well- known agents. Experiments have been conducted to evaluate the proposed model in the scenario of an e-commerce environment. | Vietnam J Comput Sci 2015 2 181-190 DOI s40595-015-0043-z CrossMark REGULAR PAPER A trust model for new member in multiagent system Manh Hung Nguyen 1 2 Dinh Que Tran1 Received 16 October 2014 Accepted 12 March 2015 Published online 24 March 2015 The Author s 2015. This article is published with open access at Abstract Computational trust has been modelled for supporting agents in selecting partners in open and distributed multiagent systems. Most of current models are based on the experience of transactions in the past with a given partner or on reputation of a partner from other agents in the system. However these models could not deal with the case a new coming agent has no experience with partners or could not obtain the information about the reputation of partners. Then agents in the system and the new one may encounter an obstacle in estimating trust on corresponding partners. In this paper we introduce a novel mechanism for computing trust of a new coming partner by means of some similarity in a profile of the new agent and the ones of well- known agents. Experiments have been conducted to evaluate the proposed model in the scenario of an e-commerce environment. Our experimental results indicate that the combination model with similarity trust significantly improves computational results in some particular situation compared with some recent trust models. Keywords Trust Reputation Trust similarity Multi-agents system B Manh Hung Nguyen nmhufng@ mhnguyen@ Dinh Que Tran tdque@ quetd@ 1 Posts and Telecommunication Institute of Technology PTIT Hanoi Vietnam 2 UMI UMMISCO 209 IRD UPMC Hanoi Vietnam 1 Introduction Trust has become one of the crucial criteria for selecting partners in open distributed and dynamic environments such as multiagent system. Many models of computational trust for multiagent systems have been proposed such as Grandison and Sloman 6 Nefti et al. 16 Yu and Singh 30-32 Sen and

• Quản trị mạng
• Trust similarity
• Multi agents system
• Similarity based mechanism
• E commerce environment
• Similar trust function
• Integrating influence into trust computation
• User interests
• Social networks
• Reputation according similarity degrees
• Exhibited within two steps