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Model collapse occurs when generative models degrade after repeatedly training on their own synthetic outputs. We study this effect in overparameterized linear regression in a setting where each iteration mixes fresh real labels with…

Machine Learning · Statistics 2026-02-13 Anvit Garg , Sohom Bhattacharya , Pragya Sur

Mode collapse is a persistent challenge in generative modeling and appears in autoregressive text generation as behaviors ranging from explicit looping to gradual loss of diversity and premature trajectory convergence. We take a…

Computation and Language · Computer Science 2026-05-28 Xin Du , Kumiko Tanaka-Ishii

Conditional image editing aims to modify a source image according to textual prompts and optional reference guidance. Such editing is crucial in scenarios requiring strict structural control (i.e., anomaly insertion in driving scenes and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Yuhan Pu , Hao Zheng , Ziqian Mo , Hill Zhang , Tianyi Fan , Shuhong Wu , Jiaheng Wei

Model editing aims to update knowledge to add new concepts and change relevant information without retraining. Lifelong editing is a challenging task, prone to disrupting previously learned concepts, especially for Vision Language Models…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Gyanendra Das , Sai Satyam Jena

Model editing aims to enhance the accuracy and reliability of large language models (LLMs) by efficiently adjusting their internal parameters. Currently, most LLM editing datasets are confined to narrow knowledge domains and cover a limited…

Computation and Language · Computer Science 2025-11-12 Qizhou Chen , Dakan Wang , Taolin Zhang , Zaoming Yan , Chengsong You , Chengyu Wang , Xiaofeng He

Large Language Models often contain factually incorrect or outdated knowledge, giving rise to model editing methods for precise knowledge updates. However, current mainstream locate-then-edit approaches exhibit a progressive performance…

Computation and Language · Computer Science 2025-10-28 Peng Wang , Biyu Zhou , Xuehai Tang , Jizhong Han , Songlin Hu

Reduced Order Models (ROMs) form essential tools across engineering domains by virtue of their function as surrogates for computationally intensive digital twinning simulators. Although purely data-driven methods are available for ROM…

Computational Engineering, Finance, and Science · Computer Science 2025-04-14 Konstantinos Vlachas , Thomas Simpson , Anthony Garland , D. Dane Quinn , Charbel Farhat , Eleni Chatzi

Reduced order modeling methods are often used as a mean to reduce simulation costs in industrial applications. Despite their computational advantages, reduced order models (ROMs) often fail to accurately reproduce complex dynamics…

Instruction guided image editing has advanced substantially with recent generative models, yet it still fails to produce reliable results across many seemingly simple cases. We observe that a large portion of these failures stem not from…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Bo Zhao , Kairui Guo , Runnan Du , Haiyang Sun , Pengshan Wang , Huan Yang , Kun Gai , Yixin Cao , Wei Ji

Training models on uncurated Text Embeddings (TEs) derived from raw tabular data can lead to a severe failure mode known as model collapse, where predictions converge to a single class regardless of input. By comparing models trained with…

Machine Learning · Computer Science 2025-06-24 Lucas Mattioli , Youness Ait Hadichou , Sabrina Chaouche , Martin Gonzalez

Large language models (LLMs) embed extensive knowledge and utilize it to perform exceptionally well across various tasks. Nevertheless, outdated knowledge or factual errors within LLMs can lead to misleading or incorrect responses, causing…

Computation and Language · Computer Science 2024-10-21 Li Zeng , Yingyu Shan , Zeming Liu , Jiashu Yao , Yuhang Guo

Three problems exist in sequential facial image editing: incontinuous editing, inconsistent editing, and irreversible editing. Incontinuous editing is that the current editing can not retain the previously edited attributes. Inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2022-09-23 Nan Yang , Xin Luan , Huidi Jia , Zhi Han , Yandong Tang

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…

Cryptography and Security · Computer Science 2026-05-19 Zhiyu Sun , Minrui Luo , Yu Wang , Zhili Chen , Tianxing He

Model-based offline reinforcement learning (RL) aims to enhance offline RL with a dynamics model that facilitates policy exploration. However, \textit{model exploitation} could occur due to inevitable model errors, degrading algorithm…

Machine Learning · Computer Science 2026-03-10 Zhongjian Qiao , Jiafei Lyu , Boxiang Lyu , Yao Shu , Siyang Gao , Shuang Qiu

Large Language Models (LLMs) excel in tasks such as retrieval and question answering but require updates to incorporate new knowledge and reduce inaccuracies and hallucinations. Traditional updating methods, like fine-tuning and incremental…

Computation and Language · Computer Science 2025-04-30 Yifan Wei , Xiaoyan Yu , Ran Song , Hao Peng , Angsheng Li

Large Multi-modality Models (LMMs) have made significant progress in visual understanding and generation, but they still face challenges in General Visual Editing, particularly in following complex instructions, preserving appearance…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Xiangyu Zhao , Peiyuan Zhang , Kexian Tang , Xiaorong Zhu , Hao Li , Wenhao Chai , Zicheng Zhang , Renqiu Xia , Guangtao Zhai , Junchi Yan , Hua Yang , Xue Yang , Haodong Duan

We reveal the theoretical foundations of techniques for editing large language models, and present new methods which can do so without requiring retraining. Our theoretical insights show that a single metric (a measure of the intrinsic…

Artificial Intelligence · Computer Science 2024-10-31 Oliver J. Sutton , Qinghua Zhou , Wei Wang , Desmond J. Higham , Alexander N. Gorban , Alexander Bastounis , Ivan Y. Tyukin

Reduced-order modeling (ROM) commonly refers to the construction, based on a few solutions (referred to as snapshots) of an expensive discretized partial differential equation (PDE), and the subsequent application of low-dimensional…

Numerical Analysis · Mathematics 2019-05-22 Martin Hess , Alessandro Alla , Annalisa Quaini , Gianluigi Rozza , Max Gunzburger

Engineers manually optimizing a structure using Finite Element based simulation software often employ an iterative approach where in each iteration they change the structure slightly and resimulate. Standard Finite Element based simulation…

Numerical Analysis · Mathematics 2018-03-09 Andreas Buhr , Christian Engwer , Mario Ohlberger , Stephan Rave

Knowledge editing (KE) methods offer an efficient way to modify knowledge in large language models. Current KE evaluations typically assess editing success by considering only the edited knowledge without any preceding contexts. In…

Computation and Language · Computer Science 2025-06-03 Haewon Park , Gyubin Choi , Minjun Kim , Yohan Jo
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