【摘要】 为了进一步提高移动社交网络中信任评价的可靠度,对移动社交网络中的信任机制进行了研究,提出了一种移动社交网络中的对等反馈信任机制(Mutual feedback trust module,MFTM)。该机制将信任对象分为服务节点与用户节点两部分,对服务节点的信任值采用刷新信任权值与评价信任权值两部分累计的方法。对用户节点,通过用户信任折算率来引导用户做出客观反馈并对用户本身的可信度做出评价,同时引入了活跃度来保持用户在社交网络中的活跃性。通过仿真实验表明MFTM能提供平稳、准确的信任累积,并对恶意节点做出有效的惩罚。更多还原

【Abstract】 In order to improve the reliability of the trust evaluation in mobile social network,the trust mechanism is conducted and a new mechanism of mutual feedback trust module(MFTM) is presented in mobile social network. The mechanism divides the trust object into two parts: service nodes and user nodes. Trust value of the service nodes is computed by refurbishing cumulative trust weight and evaluating trust weight. As for the user node,the user trust conversion rate is used to make objective feedback and to evaluate its credibility. The active degree is also given to keep users active in a social network. Simulation results show that the MFTM mechanism can provide stable and accurate trust accumulation and can make the effective punishment to malicious nodes.更多还原