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The Exponential Mechanism for Social Welfare: Private, Truthful, and Nearly Optimal

Speaker  Zhiyi Huang

Affiliation  University of Pennsylvania

Host  Nikhil Devanur Rangarajan

Duration  01:04:13

Date recorded  26 July 2012

In this work we show that for any mechanism design problem with the objective of maximizing social welfare, the exponential mechanism can be implemented as a truthful mechanism while still preserving differential privacy. Our instantiation of the exponential mechanism can be interpreted as a generalization of the VCG mechanism in the sense that the VCG mechanism is the extreme case when the privacy parameter goes to infinity. To our knowledge, this is the first general tool for designing mechanisms that are both truthful and differentially private.

©2012 Microsoft Corporation. All rights reserved.
> The Exponential Mechanism for Social Welfare: Private, Truthful, and Nearly Optimal