Influence-based Attributions can be Manipulated
Keywords: Influence Functions, Attack, data valuation, Adversary, explanation
TL;DR: Influence-based Attributions can be Manipulated
Abstract: Influence Functions are a standard tool for attributing predictions to training data in a principled manner and are widely used in applications such as data valuation and fairness. In this work, we present realistic incentives to manipulate influence-based attributions and investigate whether these attributions can be \textit{systematically} tampered by an adversary. We show that this is indeed possible for logistic regression models trained on ResNet feature embeddings and standard tabular fairness datasets and provide efficient attacks with backward-friendly implementations. Our work raises questions on the reliability of influence-based attributions in adversarial circumstances.
Primary Area: alignment, fairness, safety, privacy, and societal considerations
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Submission Number: 7759
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