基于位置隐私保护的模糊查询方法  

A Fuzzy Query Method based on Location Privacy Protection

作　　者：王鑫[1] 余翔湛[1] 

机构地区：[1]哈尔滨工业大学计算机科学与技术学院,哈尔滨150001

出　　处：《智能计算机与应用》2013年第6期21-24,共4页Intelligent Computer and Applications

基　　金：国家科技支撑计划(2012BAH37B01);国家自然科学基金(61173144)

摘　　要：随着基于位置的服务(location-based services,简称LBS)的广泛应用,个人位置信息的保护越来越受到人们关注。在LBS服务中,常常会遇到"谁附近有什么资源"的问题,"谁"代表实体位置,"什么"代表服务请求。在"谁附近有什么"的信息查询服务过程中,如何在保护"谁"的基础上提供相对可靠的服务,将是本文的研究重点。针对这一问题,用模糊集来实现对"谁"的保护,并针对模糊集,提出一种基于位置隐私保护的模糊查询方法,在模糊位置信息的基础上提供相对可靠的服务,并在一定程度上实现了位置隐私保护和位置服务质量之间的平衡。最后,通过相关实验来评估该方法的性能。The widespread adoption of location - based services （LBS） raises increasing concerns for the protection of per- sonal location information. When using the service of LBS, we usually meet the problem of ＂who and what is nearby＂ , who stands for the location of object, and what stands for the request of service. In the service of ＂ who and what is nearby＂ , how to provide relatively reliable service is kernel of this paper. In order to salve this problem, This paper uses a fuzzy set to protect ＂who＂ , and on this basis, proposes a fuzzy query method based on location privacy protection to provide relative- ly reliable service based on fuzzy location information. This method realizes the balance between location privacy protection and the quality of location service in some degree. This paper also includes several experiments assessing the performance of this method.

关 键 词：模糊集 位置隐私保护 模糊查询 服务质量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]