2014 DifferentiallyPrivateNetworkDat

• (Xiao et al., 2014) ⇒ Qian Xiao, Rui Chen, and Kian-Lee Tan. (2014). “Differentially Private Network Data Release via Structural Inference.” In: Proceedings of the 20th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2014) Journal. ISBN:978-1-4503-2956-9 doi:10.1145/2623330.2623642

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Cited By

• http://scholar.google.com/scholar?q=%222014%22+Differentially+Private+Network+Data+Release+via+Structural+Inference
• http://dl.acm.org/citation.cfm?id=2623330.2623642&preflayout=flat#citedby

Quotes

Author Keywords

• Differential privacy; network data; security and protection; structural inference

Abstract

Information networks, such as social media and email networks, often contain sensitive information. Releasing such network data could seriously jeopardize individual privacy. Therefore, we need to sanitize network data before the release. In this paper, we present a novel data sanitization solution that infers a network's structure in a differentially private manner. We observe that, by estimating the connection probabilities between vertices instead of considering the observed edges directly, the noise scale enforced by differential privacy can be greatly reduced. Our proposed method infers the network structure by using a statistical hierarchical random graph (HRG) model. The guarantee of differential privacy is achieved by sampling possible HRG structures in the model space via Markov chain Monte Carlo (MCMC). We theoretically prove that the sensitivity of such inference is only O (log n), where n is the number of vertices in a network. This bound implies less noise to be injected than those of existing works. We experimentally evaluate our approach on four real-life network datasets and show that our solution effectively preserves essential network structural properties like degree distribution, shortest path length distribution and influential nodes.

References

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2014 DifferentiallyPrivateNetworkDat	Rui Chen Kian-Lee Tan Qian Xiao			Differentially Private Network Data Release via Structural Inference				10.1145/2623330.2623642		2014