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arXiv 2412.00577cs.AI
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一种使用表征相似性分析从行为层面测量人类与人工智能对齐度的灵活方法

A Flexible Method for Behaviorally Measuring Alignment Between Human and Artificial Intelligence Using Representational Similarity Analysis

Johns Hopkins University Applied Physics Laboratory(约翰斯·霍普金斯大学应用物理实验室)

Mattson Ogg, Ritwik Bose, Jamie Scharf, Christopher Ratto, Michael Wolmetz

AI总结:

本研究调整表征相似性分析(RSA)方法,通过成对相似性评分量化人机语义对齐度,测试发现GPT-4o对齐度最高但难捕捉人类个体差异,该方法可补充现有基准,支持多模态下的人机对齐研究。

摘要:

随着我们考虑将关键的社会与决策角色托付给大语言模型(Large Language Models, LLM),衡量它们与人类认知的对齐程度变得至关重要。这需要能够评估这些系统如何表征信息、并支持在多样化任务中与人类理解进行比较的方法。为满足这一需求,我们调整了表征相似性分析(Representational Similarity Analysis, RSA)——一种利用成对相似性评分来量化人工智能与人类之间对齐度的方法。我们在文本与图像模态的语义对齐任务上测试了该方法,衡量了不同大语言模型与视觉语言模型(LLM 和 VLM)的相似性判断在群体与个体层面与人类反应的对齐情况。在我们测试的模型中,GPT-4o 与人类表现的对齐度最高,且无论输入模态如何,其利用文本处理能力时的对齐度都优于图像处理能力。然而,我们研究的所有模型都未能充分捕捉人类参与者中观察到的个体间差异,且与任何单个人类的反应仅呈中等程度对齐。该方法有助于发现某些超参数和提示词,它们能够在个体间或群体层面引导模型行为呈现出或多或少的类人特质。成对评分与 RSA 能够高效灵活地量化人机对齐,是对现有基于准确率的基准任务的补充。我们证明了该方法在多种模态(单词、句子、图像)下的实用性,可用于理解 LLM 如何编码知识,以及检验其与人类认知的表征对齐情况。

英文摘要:

As we consider entrusting Large Language Models (LLMs) with key societal and decision-making roles, measuring their alignment with human cognition becomes critical. This requires methods that can assess how these systems represent information and facilitate comparisons with human understanding across diverse tasks. To meet this need, we adapted Representational Similarity Analysis (RSA), a method that uses pairwise similarity ratings to quantify alignment between AIs and humans. We tested this approach on semantic alignment across text and image modalities, measuring how different Large Language and Vision Language Model (LLM and VLM) similarity judgments aligned with human responses at both group and individual levels. GPT-4o showed the strongest alignment with human performance among the models we tested, particularly when leveraging its text processing capabilities rather than image processing, regardless of the input modality. However, no model we studied adequately captured the inter-individual variability observed among human participants, and only moderately aligned with any individual human's responses. This method helped uncover certain hyperparameters and prompts that could steer model behavior to have more or less human-like qualities at an inter-individual or group level. Pairwise ratings and RSA enable the efficient and flexible quantification of human-AI alignment, which complements existing accuracy-based benchmark tasks. We demonstrate the utility of this approach across multiple modalities (words, sentences, images) for understanding how LLMs encode knowledge and for examining representational alignment with human cognition.

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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