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Differential Privacy. REU Project Mentors: Darakhshan Mir James Abello Marco A. Perez. In an ideal world…. We would like to be able to study data as freely as possible. What is Differential Privacy?.

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differential privacy

Differential Privacy

REU Project Mentors:Darakhshan Mir James Abello

Marco A. Perez

in an ideal world
In an ideal world…
  • We would like to be able to study data as freely as possible
what is differential privacy
What is Differential Privacy?
  • One’s participation in a statistical database should not disclose any more information that would be disclosed otherwise.
key concepts
Key Concepts
  • Neighboring databases can only differ by, at most, one entry.




ε-Differential Privacy


Global Sensitivity

  • GSof f, is the maximum change in f over all neighboring instances

GSf≤ |f(x)-f(x')|

  • Assume f is the query How many people are 23 years old, can you compute the global sensitivity?



adding noise
Adding Noise

Laplace Distribution and its properties

differential graph privacy
Differential Graph Privacy
  • The same definition of privacy can be applied to graphs.
types of differential graph privacy
Types of Differential Graph Privacy
  • Node-differential Privacytwo graphs are neighbors if they differ by at most one node and all of its incident edges.
  • Edge-differential PrivacyTwo graphs are neighbors if they differ by at most one edge
when global sensitivity fails
When Global Sensitivity Fails
  • The maximum amount, over the domain of the function, that any single argument to f can change the output.
other types of sensitivity
Other types of Sensitivity

Local Sensitivity

Smooth Sensitivity

smooth sensitivity of triangles in random graph models
Smooth Sensitivity of Triangles in Random Graph Models
  • Stochastic Kronecker Graphs
  • Exponential Random Graph Model
future work
Future Work
  • Theoretically describe the growth of smooth sensitivity in the mentioned random graph models.
  • Study graph transformations from a Differentially Private perspective and their implementation