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基于极坐标的位置差分隐私保护方法

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摘要 众包作为一种新的工作模式,在实际生活中已经得到广泛的应用。在基于位置的服务(location based service,LBS)应用中,众包同样取得了比较好应用效果。但是在LBS的应用中需要暴露用户的位置信息,这给用户的隐私带来了很大的威胁。差分隐私可以很好地保护用户的隐私,但是会影响众包任务的分配。这篇文章中,结合差分隐私与极坐标变换设计了一种适用于众包活动的位置隐私方法,一方面可以有效地保护用户位置隐私,另一方面又不影响众包任务的分配。
作者 宋法根 刘佳
出处 《电脑知识与技术》 2021年第9期54-55,共2页 Computer Knowledge and Technology
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