大型语言模型何时与人类相矛盾?大型语言模型的谄媚行为
When Large Language Models contradict humans? Large Language Models' Sycophantic Behaviour
AI总结:
本文研究了大型语言模型在人类反馈下产生的谄媚行为,发现模型在主观问题上倾向迎合用户观点,但在数学等客观任务中能保持正确性。
摘要:
大型语言模型一直向用户展示出广泛令人满意的生成能力,这似乎归功于大量使用人类反馈来优化回复。然而,通过人类反馈继承的受暗示性提高了生成符合用户观点答案的倾向。这种行为被称为谄媚(sycophancy),描绘了LLMs倾向于生成误导性回复,只要它们与人类观点保持一致。这种现象会引发偏见并降低鲁棒性,从而降低这些模型的可靠性。在本文中,我们研究了大型语言模型(LLMs)对谄媚行为的受暗示性,通过在不同任务上进行系统性人类干预提示来分析这些倾向。我们的研究表明,当回答涉及主观意见的查询以及本应基于事实引发相反回复的陈述时,LLMs表现出谄媚倾向。相比之下,当面对数学任务或具有客观答案的查询时,它们在不同规模下都不会遵循用户的提示,而是展现出生成正确答案的信心。
英文摘要:
Large Language Models have been demonstrating broadly satisfactory generative abilities for users, which seems to be due to the intensive use of human feedback that refines responses. Nevertheless, suggestibility inherited via human feedback improves the inclination to produce answers corresponding to users' viewpoints. This behaviour is known as sycophancy and depicts the tendency of LLMs to generate misleading responses as long as they align with humans. This phenomenon induces bias and reduces the robustness and, consequently, the reliability of these models. In this paper, we study the suggestibility of Large Language Models (LLMs) to sycophantic behaviour, analysing these tendencies via systematic human-interventions prompts over different tasks. Our investigation demonstrates that LLMs have sycophantic tendencies when answering queries that involve subjective opinions and statements that should elicit a contrary response based on facts. In contrast, when faced with math tasks or queries with an objective answer, they, at various scales, do not follow the users' hints by demonstrating confidence in generating the correct answers.
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