ExplainabilityAccountabilityTransparencycs.LG
Do not explain without context: addressing the blind spot of model explanations
Katarzyna Woźnica, Katarzyna Pękala, Hubert Baniecki, Wojciech Kretowicz, Elżbieta Sienkiewicz, Przemysław Biecek
May 28, 2021
arXiv.org
1 citations
Key Takeaways
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Reference data critically shapes explanations: Popular XAI techniques like Shapley values and Partial Dependence profiles produce different results depending on which dataset is used as a reference point, meaning the same model can generate contradictory explanations based on this choice alone.
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Small data changes can flip conclusions: The paper demonstrates that minor shifts in the reference data distribution can cause dramatic changes in explanations, including reversing identified trends or altering final conclusions about how a model makes decisions—a particularly concerning finding for high-stakes applications.
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Current explanations lack necessary context: Despite widespread adoption of explanation techniques to satisfy regulatory "right to explanation" requirements, these methods are often presented without information about the reference data used, creating a critical blind spot in model auditing and oversight.
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Stakeholders may be misled: When analysts create explanations, auditors review them, and decision-makers interpret them without understanding the reference data dependency, there is significant risk that different groups will draw incorrect or conflicting conclusions about model behavior and fairness.
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Robust explanations require transparency about methodology: To provide genuinely useful and trustworthy explanations, organizations must always document and communicate the reference data choices alongside any model explanation, treating this context as essential rather than optional information.