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Beyond trade-offs: How AI can be fairer than we think

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    • Date
    15 October 2025
    Timeframe
    17:00 - 18:00 CEST
    Duration
    60 minutes

      AI is often seen as facing unavoidable trade-offs between accuracy and fairness. The well-known “impossibility theorem” in algorithmic fairness suggests that multiple fairness metrics cannot be satisfied simultaneously—except in unrealistic scenarios such as perfect prediction or identical base rates. But does theory really translate to practice? In this talk, I will present insights from our 2023 FAccT paper The Possibility of Fairness: Revisiting the Impossibility Theorem in Practice. We demonstrate analytically and empirically, across five real-world datasets (including Ukrainian educational data), that when fairness constraints are relaxed in a way that reflects practitioners’ perspectives, large sets of feasible models emerge. These models achieve fairness across multiple criteria simultaneously, challenging the view that fairness is inherently impossible. 
      Beyond theory, I will discuss practical lessons for AI practitioners and policymakers: when fairness is possible, how to evaluate trade-offs, and what tools can guide the design of responsible AI systems. I will also briefly introduce the newly established Center for Data, AI, and Society at the Ukrainian Catholic University, which advances research and education at the intersection of AI, equity, and social good.

       

      Learning Objectives
      By the end of this session, participants will be able to:

      • Understand the implications of the impossibility theorem in algorithmic fairness. Analyze how relaxing fairness constraints changes the feasibility of fair AI models.
      • Apply practical guidelines to assess fairness across multiple metrics.

      Recommended mastery level or prerequisites
      Recommended Mastery Level: Intermediate to Advanced – suitable for graduate students, early career researchers, and professionals in climate science, oceanography, or environmental data science.

       

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