Xiangyu Liu, Bin Wang, Xiaochun Yang, Meng Yu and Wanyu Zang Obtaining K-obfuscation for profile privacy in social networks Security and Communication Networks 7
In this work, we formally present the definition of profile privacy leakage, which is a newly identified privacy leakage in social networks. We propose k-obfuscation to protect profiles against graph property based attacks. We develop a general framework for obtaining k-obfuscation. In this framework, we propose a novel safe vertex-profile mapping mechanism, named as k-mapping. We also design a number of techniques to make the k-mapping method efficient meanwhile maintaining the data utilities.
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