TY - RPRT TI - Information Bottleneck Dominates Adversarial Training for Ancestry-Invariant Polygenic Risk Prediction: Dimensionality, Not Gradient Reversal, Controls the Fairness-Accuracy Tradeoff AU - Tran, P. P. AU - Do, A. T. PY - 2026 DO - 10.64898/2026.04.24.720752 UR - https://www.biorxiv.org/content/10.64898/2026.04.24.720752v1 ID - 10.64898/2026.04.24.720752 ER -