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arXiv 2602.05903cs.LGcs.AI
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通过对抗序列验证生成模型中的隐式世界模型

Verification of the Implicit World Model in a Generative Model via Adversarial Sequences

University of Szeged(塞格德大学);HUN-REN–SZTE Research Group on AI(人工智能研究组)

András Balogh, Márk Jelasity

AI总结:

本研究通过对抗序列生成方法验证生成模型中的隐式世界模型有效性,发现多数模型无效,但部分训练技术可显著提升有效性。

摘要:

生成序列模型通常是在自然或正式语言的样本序列上进行训练。一个关键问题在于,基于样本的训练是否能够捕捉到这些语言的真实结构,通常称为

英文摘要:

Generative sequence models are typically trained on sample sequences from natural or formal languages. It is a crucial question whether -- or to what extent -- sample-based training is able to capture the true structure of these languages, often referred to as the ``world model''. Theoretical results indicate that we can hope for soundness at best, that is, generating valid sequences, but not necessarily all of them. However, it is still important to have practical tools that are able to verify whether a given sequence model is sound. In this study, we focus on chess, as it is a domain that provides enough complexity while having a simple rule-based world model. We propose adversarial sequence generation for verifying the soundness of the sequence model. Our adversaries generate valid sequences so as to force the sequence model to generate an invalid next move prediction. Apart from the falsification of soundness, this method is also suitable for a more fine-grained analysis of the failure modes and the effects of different choices during training. To demonstrate this, we propose a number of methods for adversarial sequence generation and evaluate the approach on a large set of chess models. We train models on random as well as high-quality chess games, using several training recipes. We find that none of the models are sound, but some training techniques and dataset choices are able to improve soundness remarkably. We also investigate the potential application of board state probes in both our training and attack methods. Our findings indicate that the extracted board states have no causal role in next token prediction in most of the models.

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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