关键词：位置信息；隐私；用户行为；应用程序；智能手机
摘 要：Current smartphone platforms provide ways for users to control access to information about their location. For instance, on the iPhone, when an application requests access to location information, the operating system asks the user whether to grant location access to this application. In this paper, we study how users are using these controls. Do iPhone users allow applications to access their location? Do their decisions di er from application to application? Can we predict how a user will respond for a particular application, given their past responses for other applications?
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