ExplainabilityAccountabilityTransparencycs.AI
What's meant by explainable model: A Scoping Review
Mallika Mainali, Rosina O Weber
July 18, 2023
arXiv.org
1 citations
Key Takeaways
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Most "explainable" AI systems lack proper evaluation: The paper found that 81% of application papers claiming to use explainable AI models did not actually evaluate whether their explanation methods worked, suggesting the term "explainable" is often used without rigorous validation.
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Adding an explanation tool doesn't automatically make AI trustworthy: The research reveals that simply applying a post-hoc explanation method (tools added after a model is built) to an AI system is insufficient to call it "explainable"—these methods need to be tested and validated for the specific application.
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Explanation quality depends heavily on context: The paper emphasizes that explanations are "application- and domain-specific," meaning an explanation method that works well for medical diagnosis may not work for loan approval decisions, requiring separate evaluation for each use case.
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Popular explanation methods show inconsistent performance: Feature attribution methods—commonly used techniques to explain which data inputs influenced an AI decision—"vary substantially" in their effectiveness, indicating they are not a universal solution to the explainability problem.
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Responsible AI requires evaluation, not just tools: For organizations deploying AI systems, this research underscores that claiming a model is "explainable" requires demonstrating that explanation methods actually provide meaningful, accurate information for that specific application.