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Instruction-tuned large language models (LLMs) employ structured templates, such as role markers and special tokens, to enforce format consistency during inference. However, we identify a critical limitation of such formatting: it induces a…

计算与语言 · 计算机科学 2025-05-27 Longfei Yun , Chenyang An , Zilong Wang , Letian Peng , Jingbo Shang

The proliferation of Large Language Models (LLMs), such as ChatGPT, has raised concerns about their potential impact on academic integrity, prompting the need for LLM-resistant exam designs. This article investigates the performance of LLMs…

计算与语言 · 计算机科学 2023-04-25 Simon kaare Larsen

The performance of Large Language Models (LLMs) degrades from the temporal drift between data used for model training and newer text seen during inference. One understudied avenue of language change causing data drift is the emergence of…

计算与语言 · 计算机科学 2024-08-14 Jonathan Zheng , Alan Ritter , Wei Xu

Large language models (LLMs) are pivotal in advancing natural language processing (NLP) tasks, yet their efficacy is hampered by inaccuracies and outdated knowledge. Model editing emerges as a promising solution to address these challenges.…

计算与语言 · 计算机科学 2024-02-22 Mengqi Zhang , Xiaotian Ye , Qiang Liu , Pengjie Ren , Shu Wu , Zhumin Chen

Knowledge editing and machine unlearning are two popular approaches for large language models (LLMs) to stay up-to-date. However, the knowledge updating mechanism of LLMs remains largely unexplored due to insufficient, isolated, and…

计算与语言 · 计算机科学 2026-03-26 Yinyi Luo , Zhexian Zhou , Hao Chen , Kai Qiu , Marios Savvides , Sharon Li , Jindong Wang

Large language models (LLMs) can make predictions using parametric knowledge--knowledge encoded in the model weights--or contextual knowledge--knowledge presented in the context. In many scenarios, a desirable behavior is that LLMs give…

计算与语言 · 计算机科学 2024-03-27 Yingfa Chen , Zhengyan Zhang , Xu Han , Chaojun Xiao , Zhiyuan Liu , Chen Chen , Kuai Li , Tao Yang , Maosong Sun

Large Language Model (LLM) leaderboards based on benchmark rankings are regularly used to guide practitioners in model selection. Often, the published leaderboard rankings are taken at face value - we show this is a (potentially costly)…

Knowledge editing aims to update outdated or incorrect knowledge in large language models (LLMs). However, current knowledge editing methods have limited scalability for lifelong editing. This study explores the fundamental reason why…

计算与语言 · 计算机科学 2025-02-27 Chenhui Hu , Pengfei Cao , Yubo Chen , Kang Liu , Jun Zhao

Lifelong learning enables large language models (LLMs) to adapt to evolving information by continually updating their internal knowledge. An ideal system should support efficient, wide-ranging updates while preserving existing capabilities…

计算与语言 · 计算机科学 2026-03-11 Xiaojie Gu , Ziying Huang , Jia-Chen Gu , Kai Zhang

Large language models (LLMs) often achieve strong performance on reasoning benchmarks, but final-answer accuracy alone does not show whether they faithfully execute the procedure specified in a prompt. We introduce a controlled diagnostic…

计算与语言 · 计算机科学 2026-05-26 Sailesh Panda , Pritam Kadasi , Abhishek Upperwal , Mayank Singh

Large language models (LLMs) are pretrained on corpora containing trillions of tokens and, therefore, inevitably memorize sensitive information. Locate-then-edit methods, as a mainstream paradigm of model editing, offer a promising solution…

密码学与安全 · 计算机科学 2026-05-19 Zhiyu Sun , Minrui Luo , Yu Wang , Zhili Chen , Tianxing He

Finetuning can significantly modify the behavior of large language models, including introducing harmful or unsafe behaviors. To study these risks, researchers develop model organisms: models finetuned to exhibit specific known behaviors…

计算与语言 · 计算机科学 2026-05-05 Mohammed Abu Baker , Luca Baroni , Dan Wilhelm

Knowledge editing, which aims to update the knowledge encoded in language models, can be deceptive. Despite the fact that many existing knowledge editing algorithms achieve near-perfect performance on conventional metrics, the models edited…

计算与语言 · 计算机科学 2025-05-20 Jiakuan Xie , Pengfei Cao , Yubo Chen , Kang Liu , Jun Zhao

Knowledge editing aims to update the embedded knowledge within Large Language Models (LLMs). However, existing approaches, whether through parameter modification or external memory integration, often suffer from inconsistent evaluation…

计算与语言 · 计算机科学 2025-05-27 Guoxiu He , Xin Song , Futing Wang , Aixin Sun

Large language models (LLMs) require frequent knowledge updates to reflect changing facts and mitigate hallucinations. To meet this demand, lifelong knowledge editing has emerged as a continual approach to modify specific pieces of…

人工智能 · 计算机科学 2026-04-22 Dahyun Jung , Jaewook Lee , Heuiseok Lim

Safety-aligned large language models (LLMs) remain vulnerable to backdoor attacks. Recent model editing-based approaches enable efficient backdoor injection by directly modifying a small set of parameters to map triggers to attacker-desired…

计算与语言 · 计算机科学 2026-03-25 Houcheng Jiang , Zetong Zhao , Junfeng Fang , Haokai Ma , Ruipeng Wang , Xiang Wang , Xiangnan He , Yang Deng

The pursuit of leaderboard rankings in Large Language Models (LLMs) has created a fundamental paradox: models excel at standardized tests while failing to demonstrate genuine language understanding and adaptability. Our systematic analysis…

计算与语言 · 计算机科学 2024-12-06 Sourav Banerjee , Ayushi Agarwal , Eishkaran Singh

The effect of large language models (LLMs) in education is debated: Previous research shows that LLMs can help as well as hurt learning. In two pre-registered and incentivized laboratory experiments, we find no effect of LLMs on overall…

计算机与社会 · 计算机科学 2025-03-11 Matthias Lehmann , Philipp B. Cornelius , Fabian J. Sting

Diversity in training data, architecture, and providers is assumed to mitigate homogeneity in LLMs. However, we lack empirical evidence on whether different LLMs differ meaningfully. We conduct a large-scale empirical evaluation on over 350…

计算与语言 · 计算机科学 2025-06-10 Elliot Kim , Avi Garg , Kenny Peng , Nikhil Garg

The interactive nature of Large Language Models (LLMs) theoretically allows models to refine and improve their answers, yet systematic analysis of the multi-turn behavior of LLMs remains limited. In this paper, we propose the FlipFlop…

计算与语言 · 计算机科学 2024-02-22 Philippe Laban , Lidiya Murakhovs'ka , Caiming Xiong , Chien-Sheng Wu