Friday 4th April 2014 – Dr Marco Gaboardi

Dr Marco Gaboardi – University of Dundee

Differential Privacy: An Economic Method for Choosing Epsilon

Abstract
Differential Privacy is becoming a standard approach in data privacy: it offers ways to answer queries about sensitive information while providing strong, provable privacy guarantees, ensuring that the presence or absence of a single individual in the database has a negligible statistical effect on the query’s result. However, the question of when differential privacy works in practice has received relatively little attention. In particular, there is still no rigorous method for choosing the two key parameters, epsilon and delta, which control the crucial tradeoff between the strength of the privacy guarantee and the accuracy of the published results.

In this talk I will introduce the basics of differential privacy and some of the fundamental mechanisms for building differentially private programs.
I will then examine the role that the parameters epsilon and delta play in concrete applications of differential privacy, identifying the key challenges that must be addressed when choosing specific values. This choice requires balancing the interests of two different parties: the data analyst and the prospective participant, who must decide whether to allow their data to be included in the analysis.

Bio
Marco Gaboardi is a lecturer, Dundee fellow and Marie Curie fellow at the University of Dundee. He received his Ph.D. in Computer Science from the University of Torino, Italy, and the Institut National Polytechnique de Lorraine, France. Prior to joining the University of Dundee as a lecturer he was a research associate at the University of Pennsylvania, University of Bologna, University of Paris Nord, and University of Torino.

Marco’s research interests center on the use of programming language methods to ensure programs reliable and robust. A large part of his research is devoted to designing methods and tools to ensure program privacy-preserving. Another part of his research is dedicated to designing type systems for analyzing programs resource usage in functional programs.

School of Computing Science & Digital Media, Robert Gordon University, Riverside East, Garthdee, Aberdeen, Conference Room N204, 14:10 – 15:10.

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School of Computing Science and Digital Media, Robert Gordon University, Aberdeen, Scotland
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