Few Tokens, Big Leverage: Preserving Safety Alignment by Constraining Safety Tokens during Fine-tuning
少令牌,大杠杆:在微调期间通过约束安全令牌保持安全对齐
机构 * Case Western Reserve University(凯斯西储大学)
专题命中 安全训练 :alignment(title,abstract);safety(title,abstract);分类 cs.CL、cs.LG
AI总结 提出PACT框架,通过约束安全相关令牌的置信度来防止微调导致的安全对齐漂移,同时保持下游任务性能。
Comments Accepted to KDD 2026