[Pl-seminar] TIME CHANGE: 4/24: Marco Gaboardi, "A language for Differential Privacy"

Vincent St-Amour stamourv at ccs.neu.edu
Mon Apr 22 10:29:44 EDT 2013

Slight change to the schedule. The talk will be from *12* to 1:30.


At Thu, 18 Apr 2013 13:37:16 -0400,
Vincent St-Amour wrote:
> NEU Programming Languages Seminar presents
> Marco Gaboardi
> University of Pennsylvania
> Wednesday, 4/24
> 11:45-1:30
> Room 366 WVH (http://www.ccs.neu.edu/home/wand/directions.html)
> A language for Differential Privacy
> Differential privacy offers a way to answer queries about sensitive
> information while offering strong, provable privacy guarantees. Several
> tools have been developed for certifying that a given query is
> differentially private. In this talk, I will present one approach, based
> on a functional programming language named Fuzz, that we are developing
> at the University of Pennsylvania.
> One of the most common mechanisms for turning a (possibly
> privacy-leaking) query into a differentially private consists in adding
> noise to the result of a query. To ensure the privacy guarantee, the
> noise must be proportional to the query sensitivity: how much the result
> of a query can change with respect to linear changes in the input. Fuzz
> uses linear indexed types and lightweight dependent types to express a
> rich sensitivity analysis, and a probability monad to express randomized
> computation. The soundness of Fuzz guarantees that any program that has
> a certain type is differentially private. So, Fuzz can be used to
> certify differentially private a broad class algorithms. Moreover, its
> type analysis can be used more in general to perform sensitivity
> checking and sensitivity inference.
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