本期内容要点: 稀疏自编码器 (SAE) 与随机Transformer: 研究发现SAE也能“解释”随机初始化的Transformer,质疑了SAE作为机制可解释性工具的有效性,强调零模型基准测试的重要性。 o1类LLM的“欠思考”现象: 揭示了o1类LLM在复杂推理中存在的“欠思考”问题,即频繁切换思路但缺乏深入探索,并提出“思路切换惩罚 (TIP)”解码策略有效提升推理准确率。 Chatbot Arena投票作弊: 论证了Chatbot Arena平台存在投票作弊漏洞,“普遍存在的作弊”策略只需少量选票即可操纵模型排名,凸显众包评估平台的安全风险。 通用模型无关强化学习 (MR.Q): 提出了MR.Q算法,在模型无关框架内融入模型相关的表征学习,实现了跨多种基准测试的通用性和高性能,推动了通用强化学习算法的发展。 LLM-AutoDiff框架: 提出了LLM-AutoDiff框架,将自动微分应用于提示工程,实现了对复杂LLM工作流的自动化提示优化,显著提升了优化效率和应用性能。完整推介:https://mp.weixin.qq.com/s/sHdDsARFgt04IsV5xeOvxA
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