摘要
访问控制是实现OSN隐私保护的有效方法之一,针对已有基于关系的访问控制中存在的控制粒度粗、不够灵活等问题,提出OSN访问控制下的关系度量机制,利用用户间关系强弱进一步区分关系(群组)中不同用户的访问权限。基于OSN用户交互特点,由交互行为分析用户关注度,利用用户关注度相对因子、交互强度、关系强度时间衰减性综合产生用户间关系强度。实验结果证明了所提关系强度度量方法的可行性和有效性。
Access control is one of the effective methods to protect the privacy of people in OSN. However,there are some problems in the relationship-based access control scheme,such as the coarse-grained and inflexibility. So evaluating the relationship strength between users is introduced in relationship-based access control,user's access can be authorized according to relationship strength. Based on the characteristics of users' interaction in OSN,the user's attention is acquired by analyzing interaction behavior between users,and then a newevaluation model for relationship strength is constructed by considering the following features: attention factor,interaction strength and time decay. Experimental results showthat the proposed method is feasible and effective.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2016年第7期90-97,共8页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目(61170254)
河北省自然科学青年基金资助项目(F2014201165)
河北省高等学校科学技术研究项目(ZD2016043)
河北省自然科学基金项目(F2014201099)
关键词
在线社会网络
隐私保护
访问控制
关系强度
online social network
privacy protection
access control
relationship strength
