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Obtaining Fairness using Optimal Transport Theory Authors: Eustasio - PowerPoint PPT Presentation

Obtaining Fairness using Optimal Transport Theory Authors: Eustasio del Barrio, Fabrice Gamboa, Paula Gordaliza , Jean-Michel Loubes Presenter: Theo Hu Fairness Definition in this paper Demographic Parity: Basically says that your prediction


  1. Obtaining Fairness using Optimal Transport Theory Authors: Eustasio del Barrio, Fabrice Gamboa, Paula Gordaliza , Jean-Michel Loubes Presenter: Theo Hu

  2. Fairness Definition in this paper Demographic Parity: Basically says that your prediction should be independent of sensitive attribute S · Disparate Impact(DI) · Balanced Error Rate(BER)

  3. Total Variation Distance is a good way to bound unfairness

  4. Two general ways of removing ‘unfairness’

  5. Total Repair and Wasserstein barycenter

  6. Total Repair and Wasserstein barycenter

  7. Computing Barycenter

  8. Bound of Utility Lost

  9. Total vs. Partial Repair

  10. Random Repair and its guarantee

  11. Comparison to Geometric Repair (Previous work)

  12. Computational Aspects

  13. Computational Aspects- Total Repair

  14. Computational Aspects- Random Repair

  15. Experiments

  16. Case that Random Repair beats Geometric Repair

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