Cited by 45Ethics and Social Impacts of AIMachine Learning and AlgorithmsExplainable Artificial Intelligence (XAI)

Towards Unbiased and Accurate Deferral to Multiple Experts

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Keswani, Vijay, Lease, Matthew, Kenthapadi, Krishnaram·2021·Proceedings of the 2021 AAAI/ACM Conference on AI, Ethics, and Society

Abstract

Machine learning models are often implemented in cohort with humans in the pipeline, with the model having an option to defer to a domain expert in cases where it has low confidence in its inference. Our goal is to design mechanisms for ensuring accuracy and fairness in such prediction systems that combine machine learning model inferences and domain expert predictions. Prior work on "deferral systems" in classification settings has focused on the setting of a pipeline with a single expert and aimed to accommodate the inaccuracies and biases of this expert to simultaneously learn an inference model and a deferral system. Our work extends this framework to settings where multiple experts are available, with each expert having their own domain of expertise and biases. We propose a framework that simultaneously learns a classifier and a deferral system, with the deferral system choosing to defer to one or more human experts in cases of input where the classifier has low confidence. We test our framework on a synthetic dataset and a content moderation dataset with biased synthetic experts, and show that it significantly improves the accuracy and fairness of the final predictions, compared to the baselines. We also collect crowdsourced labels for the content moderation task to construct a real-world dataset for the evaluation of hybrid machine-human frameworks and show that our proposed framework outperforms baselines on this real-world dataset as well.

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Research works printed but not linked: 6

  1. Amanda Bower, Sarah N Kitchen, Laura Niss, Martin J Strauss, Alexander Vargas, and Suresh Venkatasubramanian. Fair pipelines. arXiv preprint arXiv:1707.00391, 2017. · arXiv
  2. Jean-Baptiste Hiriart-Urruty and Claude Lemaréchal. Convex Analysis and Minimization Algorithms I: Fundamentals, volume 305. Springer science & business media, 2013.
  3. Lydia T Liu, Sarah Dean, Esther Rolf, Max Simchowitz, and Moritz Hardt. Delayed impact of fair machine learning. In International Conference on Machine Learning, pages 3150-3158, 2018.
  4. Hussein Mozannar and David Sontag. Consistent estimators for learning to defer to an expert. In International Conference on Machine Learning, pages 7076-7087. PMLR, 2020.
  5. Genevieve Patterson, Grant Van Horn, Serge Belongie, Pietro Perona, and James Hays. Bootstrapping fine-grained classifiers: Active learning with a crowd in the loop. In NeurIPS Workshop on Crowdsourcing: Theory, Algorithms and Applications, 2013.
  6. Chenxi Qiu, Anna C Squicciarini, Barbara Carminati, James Caverlee, and Dev Rishi Khare. Crowdselect: Increasing accuracy of crowdsourcing tasks through behavior prediction and user selection. In Proceedings of the 25th ACM International on Conference on Information and Knowledge Management, pages 539-548, 2016.

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Authors
Keswani, V., Lease, M., & Kenthapadi, K.
Affiliations
  • Yale University (US)
  • The University of Texas at Austin (US)
  • Amazon (United States) (US)
Venue
Proceedings of the 2021 AAAI/ACM Conference on AI, Ethics, and Society
Publisher
ACM
Published
2021-07-21
Pages
154-165
ISSN
3065-8365 (ISSN-L)
OpenAlex
W3131911651
Cited by
45
References
75
Citations by year
2026: 5 · 2025: 12 · 2024: 8 · 2023: 9 · 2022: 9 · 2021: 2
FWCI
6.34
Type
conference paper
Language
en
Open access
Locations
  • Proceedings of the AAAI/ACM Conference on AI Ethics and Society (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Social Sciences › Safety Research › Ethics and Social Impacts of AI
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning and Algorithms
  • Physical Sciences › Computer Science › Artificial Intelligence › Explainable Artificial Intelligence (XAI)
Keywords
algorithmic bias, content moderation, classifier confidence

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