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arXiv 2401.08046cs.CLcs.AI

增强面向学术写作的LLM合成文本检测器的鲁棒性:一项综合分析

Enhancing Robustness of LLM-Synthetic Text Detectors for Academic Writing: A Comprehensive Analysis

National Institute of Informatics(国立情报学研究所);The University of Tokyo(东京大学)

Zhicheng Dou, Yuchen Guo, Ching-Chun Chang, Huy H. Nguyen, Isao Echizen

AI总结:

本文分析提示对LLM生成文本的影响,揭示现有GPT检测器鲁棒性不足,并提出基于参考的孪生检测器Synthetic-Siamese,在真实学术写作场景中将基线性能提升约67%至95%。

摘要:

大型语言模型(LLMs)的出现,例如ChatGPT所使用的生成式预训练Transformer 4(GPT-4),已经对学术界及更广泛的社区产生了深远影响。尽管这些模型在革新工作和学习方法方面具有诸多优势,但它们也因其潜在的负面后果而引起了广泛关注。其中一个例子是生成几乎没有或完全没有人类贡献的学术报告或论文。因此,研究人员一直致力于开发检测器以应对LLMs的滥用问题。然而,现有大多数方法优先考虑在受限数据集上实现更高的准确率,却忽视了至关重要的泛化能力。这一局限性阻碍了它们在现实场景中的实际应用,而在这些场景中可靠性至关重要。在本文中,我们对提示(prompts)对LLMs生成文本的影响进行了全面分析,并指出现有最先进的GPT检测器之一可能缺乏鲁棒性。为了缓解这些与学术写作中LLMs滥用相关的问题,我们提出了一种基于参考的孪生(Siamese)检测器,名为Synthetic-Siamese,它接收一对文本,一个作为查询文本,另一个作为参考文本。我们的方法有效解决了先前检测器(OpenAI检测器和DetectGPT)鲁棒性不足的问题,并在现实的学术写作场景中将基线性能显著提高了约67%至95%。

英文摘要:

The emergence of large language models (LLMs), such as Generative Pre-trained Transformer 4 (GPT-4) used by ChatGPT, has profoundly impacted the academic and broader community. While these models offer numerous advantages in terms of revolutionizing work and study methods, they have also garnered significant attention due to their potential negative consequences. One example is generating academic reports or papers with little to no human contribution. Consequently, researchers have focused on developing detectors to address the misuse of LLMs. However, most existing methods prioritize achieving higher accuracy on restricted datasets, neglecting the crucial aspect of generalizability. This limitation hinders their practical application in real-life scenarios where reliability is paramount. In this paper, we present a comprehensive analysis of the impact of prompts on the text generated by LLMs and highlight the potential lack of robustness in one of the current state-of-the-art GPT detectors. To mitigate these issues concerning the misuse of LLMs in academic writing, we propose a reference-based Siamese detector named Synthetic-Siamese which takes a pair of texts, one as the inquiry and the other as the reference. Our method effectively addresses the lack of robustness of previous detectors (OpenAI detector and DetectGPT) and significantly improves the baseline performances in realistic academic writing scenarios by approximately 67% to 95%.

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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