摘要
针对传统的基于位置服务的隐私模型匿名时间较长的情况,建立了QR-TCM模型。该模型提出了隐私保护算法CRCA。通过分析影响匿名时间的因素,提出了解决用户服务延迟的方法以及位置服务质量评价模型。实验采用了标准数据集上的数据,通过响应时间、隐私性等多个维度去衡量QR-TCM模型。实验结果证明,该方法适用于连续查询位置隐私保护,可有效保护用户的位置隐私和提供及时的服务。
To solve the problem that the traditional location services anonymity model takes a lot of time to produce anonymous region,the quasi real-time cloak model (QR-TCM) was established.The model proposes a privacy protection method called clock rotation cloak algorithm (CRCA).After comprehensive analysis of the reasons that influence the anonymity,a model that can solve the users' service delayed and the method of measuring the quality of service were proposed.The experiment uses the standard data sets,and measures the QR-TCM model with multiple dimensions such as the response time and the degree of privacy.The experiment results confirm that the method is suitable for continuous query location privacy protection,and can effectively protect the user's privacy and offer fast service.
出处
《计算机科学》
CSCD
北大核心
2014年第4期95-98,共4页
Computer Science
基金
国家自然科学基金(61170035
61272420)
江苏省自然科学基金重大专项(BK2011022)
江苏省自然科学基金(BK2011702)
江苏省青蓝工程创新团队
江苏省高校2010年"青蓝工程"优秀青年骨干教师项目
南京市科技计划重点项目(020142010)
南京理工大学2009年度紫金之星项目资助