新型互联网计算模式下的信任关系建模及其机理研究

项目名称： 新型互联网计算模式下的信任关系建模及其机理研究

项目编号： No.61300193

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 李峰

作者单位： 东北大学

项目金额： 22万元

中文摘要： 在新型互联网计算模式下，信任模型作为一种相对柔性的"软安全"度量机制，成为了学术界研究的热点。本项目拟从多维信任证据入手，构建多维度信任证据模型及其证据收集机制，为模型获取评估证据提供有效支撑技术；建立一种基于上下文和时间戳的信任关系形式化表示和评估方法，基于推荐网络探索信任关系形成和传播机制；探索环境、时间、上下文、交互次数、实体稳定度、可靠推荐实体数等交互因子对信任评估准确性的影响，建立基于交互感知的动态自适应的信任评估策略，提高模型评估信任的准确性；构建一种基于信任推理和负载均衡的可信实体决策机制，为协作实体选择和恶意实体防护提供策略基础；分析复杂隐蔽协同作弊行为的特征，构建一种有效的作弊行为识别和防护机制，为模型的安全性和鲁棒性提供支撑技术。研究成果有助于揭示互联网计算环境下实体动态信任关系形成和传播的规律，为信任模型的构建提供理论和技术依托。

中文关键词： 互联网计算模式；信任关系；信任模型；信任证据；交互感知

英文摘要： Trust model that is usually regarded as a relatively flexible soft security measurement mechanism, is a hotspot of academic research in the new Internet computing. This project intends to start with the multi-dimensional trust evidence, builds a multi-dimensional trust evidence model and trust evidence collection mechanism to provide an effective evidence supporting technology for trust model. The formalizing representation and evaluation methods of trust relationship are established based on entity context and time stamp. The forming and propagation mechanisms of trust relationship are analyzed through the recommended network. By exploring the impact of interaction factors on the accuracy of trust evaluation, for example environment, time, context, the number of interactions, entity stability, and reliable recommended et al, a dynamic adaptive trust evaluation strategy is build based on interaction-aware technology to improve accuracy of trust evaluation. The decision-making mechanism of trusted entity is established based on trust reasoning and load balancing to provide strategy foundation for collaborative entity selection and malicious entities protective. An effective recognition and protection mechanisms of cheating behavior is proposed by analyzing the features of complex co-cheating behavior, which provi

英文关键词： Internet Computing model；trust relationship；trust model；trust evidence；interaction-aware