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data pooling 1decision theory 1geometry regularization 1gram matrix 1model auditing 1preference reversal 1

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stat.ML2026

More Data, Worse Decisions? Preference Reversals in Neural Networks under Gram Incompatibility

Yanli Yan, Yuanzheng Li, Yong Zhao +2

The paper investigates how pooling data from different sources can cause neural networks with OLS output heads to reverse previously agreed-upon preferences, and proposes geometric…