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arXiv 2410.06271cs.CLcs.AI
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探究大语言模型中心智理论的鲁棒性

Probing the Robustness of Theory of Mind in Large Language Models

Bonn-Aachen International Center for IT(波恩-亚琛国际信息技术中心);University of Bonn(波恩大学)

Christian Nickel, Laura Schrewe, Lucie Flek

AI总结:

本研究构建含68个任务、分10个复杂度等级的新型心智理论探究数据集,评估四款SotA开源大语言模型的ToM能力,发现模型ToM能力有限且对任务变体鲁棒性差,为相关后续研究提供方向。

摘要:

随着ChatGPT及其他同等规模的SotA大语言模型(LLM)取得成功,科学文献中出现了这类模型涌现出类人社会推理能力、尤其是心智理论(Theory of Mind, ToM)的论断。一方面,研究者采用与心理学实验类似的任务范式,已成功验证了这些ToM能力的存在(Kosinski, 2023);另一方面,后续研究表明,当任务被稍作改动时,这些能力就会消失(Ullman, 2023)。本研究构建了一个包含68个任务的新型数据集,用于探究大语言模型的ToM能力,其中涵盖了可能具有挑战性的任务变体,这些变体被划分为10个复杂度等级,借此为揭示大语言模型在应对这类任务变体时面临的挑战提供新的见解。我们在本研究的数据集与Kosinski(2023)提出的数据集上,评估了四款SotA开源大语言模型的ToM表现。所有受评估模型的整体目标准确率都较低,表明其仅具备有限程度的ToM能力。在两个数据集的简单复杂度等级任务上,这些大语言模型的表现相近;但我们发现,所有受测大语言模型在需要意识到智能体知晓其环境中自动状态变化的任务上表现普遍较差,即便这些变化已被明确告知模型也是如此。对于通过替换介词改变对象间关系的任务复杂化设置,我们注意到所有模型的性能均出现下降,其中对混合专家模型(mixture-of-experts model)的影响最为显著。我们的按复杂度分组的任务数据集,为后续研究如何稳定并提升大语言模型的ToM能力提供了方向。

英文摘要:

With the success of ChatGPT and other similarly sized SotA LLMs, claims of emergent human like social reasoning capabilities, especially Theory of Mind (ToM), in these models have appeared in the scientific literature. On the one hand those ToM-capabilities have been successfully tested using tasks styled similar to those used in psychology (Kosinski, 2023). On the other hand, follow up studies showed that those capabilities vanished when the tasks were slightly altered (Ullman, 2023). In this work we introduce a novel dataset of 68 tasks for probing ToM in LLMs, including potentially challenging variations which are assigned to 10 complexity classes. This way it is providing novel insights into the challenges LLMs face with those task variations. We evaluate the ToM performance of four SotA open source LLMs on our dataset and the dataset introduced by (Kosinski, 2023). The overall low goal accuracy across all evaluated models indicates only a limited degree of ToM capabilities. The LLMs' performance on simple complexity class tasks from both datasets are similar. Whereas we find a consistent tendency in all tested LLMs to perform poorly on tasks that require the realization that an agent has knowledge of automatic state changes in its environment, even when those are spelled out to the model. For task complications that change the relationship between objects by replacing prepositions, we notice a performance drop in all models, with the strongest impact on the mixture-of-experts model. With our dataset of tasks grouped by complexity we offer directions for further research on how to stabilize and advance ToM capabilities in LLM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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