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Low-rank adaptation (LoRA) is one of the most popular methods among parameter-efficient fine-tuning (PEFT) methods to adapt pre-trained large language models (LLMs) to specific downstream tasks. However, the model trained based on LoRA…

Computation and Language · Computer Science 2026-01-05 Yixing Xu , Chao Li , Xuanwu Yin , Spandan Tiwari , Dong Li , Ashish Sirasao , Emad Barsoum

Federated learning (FL) is vulnerable to poisoning attacks, where adversaries corrupt the global aggregation results and cause denial-of-service (DoS). Unlike recent model poisoning attacks that optimize the amplitude of malicious…

Machine Learning · Computer Science 2024-09-27 Hangtao Zhang , Zeming Yao , Leo Yu Zhang , Shengshan Hu , Chao Chen , Alan Liew , Zhetao Li

With increasing numbers of vulnerabilities exposed on the internet, autonomous penetration testing (pentesting) has emerged as a promising research area. Reinforcement learning (RL) is a natural fit for studying this topic. However, two key…

Machine Learning · Computer Science 2025-02-12 Shicheng Zhou , Jingju Liu , Yuliang Lu , Jiahai Yang , Yue Zhang , Jie Chen

Despite recent advances in photorealistic image generation through large-scale models like FLUX and Stable Diffusion v3, the practical deployment of these architectures remains constrained by their inherent intractability to parameter…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Zhiwen Li , Zhongjie Duan , Die Chen , Cen Chen , Daoyuan Chen , Yaliang Li , Yingda Chen

The Parameter-Efficient Fine-Tuning (PEFT) methods have been extensively researched for large language models in downstream tasks. Among all the existing approaches, the Low-Rank Adaptation (LoRA) has gained popularity for its streamlined…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Tangyu Jiang , Haodi Wang , Chun Yuan

Large Language Models (LLMs) are commonly finetuned for a variety of use cases and domains. A common approach is to leverage Low-Rank Adaptation (LoRA) -- known to provide strong performance at low resource costs. In this study, we…

Machine Learning · Computer Science 2025-10-02 Marcel Mateos Salles , Praney Goyal , Pradyut Sekhsaria , Hai Huang , Randall Balestriero

Backdoored and privacy-leaking deep neural networks pose a serious threat to the deployment of machine learning systems in security-critical settings. Existing defenses for backdoor detection and membership inference typically require…

Cryptography and Security · Computer Science 2026-01-19 Marco Arazzi , Antonino Nocera

This study examines whether Low-Rank Adaptation (LoRA) fine-tuned Large Language Models (LLMs) can approximate the performance of fully fine-tuned models in generating human-interpretable decisions and explanations for malware…

Cryptography and Security · Computer Science 2025-11-26 Stephen C. Gravereaux , Sheikh Rabiul Islam

Fine-tuning large language models (LLMs) with low-rank adaptation (LoRA) is a cost-effective way to incorporate information from a specific dataset. However, when a problem requires incorporating information from multiple datasets - as in…

Machine Learning · Computer Science 2026-04-03 Liyi Zhang , Jake Snell , Thomas L. Griffiths

Large language models (LLMs) have achieved remarkable success in various domains, primarily due to their strong capabilities in reasoning and generating human-like text. Despite their impressive performance, LLMs are susceptible to…

Cryptography and Security · Computer Science 2025-05-13 Yangguang Shao , Xinjie Lin , Haozheng Luo , Chengshang Hou , Gang Xiong , Jiahao Yu , Junzheng Shi

Low-Rank Adaptation (LoRA) has emerged as a leading technique for efficiently fine-tuning text-to-image diffusion models, and its widespread adoption on open-source platforms has fostered a vibrant culture of model sharing and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Liangwei Lyu , Jiaqi Xu , Jianwei Ding , Qiyao Deng

While large language models (LLMs) have achieved remarkable success in providing trustworthy responses for knowledge-intensive tasks, they still face critical limitations such as hallucinations and outdated knowledge. To address these…

Computation and Language · Computer Science 2025-08-06 Zizhong Li , Haopeng Zhang , Jiawei Zhang

Retrieval-Augmented Generation (RAG) systems based on Large Language Models (LLMs) have become a core technology for tasks such as question-answering (QA) and content generation. RAG poisoning is an attack method to induce LLMs to generate…

Artificial Intelligence · Computer Science 2026-01-13 Meng Xi , Sihan Lv , Yechen Jin , Guanjie Cheng , Naibo Wang , Ying Li , Jianwei Yin

Low-rank adaptation (LoRA) is a widely used parameter-efficient fine-tuning method, yet its learned correction is static: the same low-rank update is applied to every input. This input-agnostic approach creates an inevitable compromise…

Machine Learning · Computer Science 2026-05-20 Ali Zindari , Xiaowen Jiang , Rotem Mulayoff , Sebastian U. Stich

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by retrieving relevant documents from external sources to improve factual accuracy and verifiability. However, this reliance introduces new attack surfaces within…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Saket S. Chaturvedi , Gaurav Bagwe , Lan Zhang , Xiaoyong Yuan

Federated fine-tuning has emerged as a promising approach to adapt foundation models to downstream tasks using decentralized data. However, real-world deployment remains challenging due to the high computational and communication demands of…

Machine Learning · Computer Science 2025-08-21 Yajie Zhou , Xiaoyi Pang , Zhibo Wang

Low-Rank Adaptation (LoRA) has emerged as a popular parameter-efficient fine-tuning (PEFT) method for Large Language Models (LLMs), yet it still incurs notable overhead and suffers from parameter interference in multi-task scenarios. We…

Machine Learning · Computer Science 2025-08-05 Juzheng Zhang , Jiacheng You , Ashwinee Panda , Tom Goldstein

Large Language Models (LLMs) enhanced with Retrieval-Augmented Generation (RAG) have shown improved performance in generating accurate responses. However, the dependence on external knowledge bases introduces potential security…

Cryptography and Security · Computer Science 2026-04-10 Zhiyuan Chang , Mingyang Li , Xiaojun Jia , Junjie Wang , Yuekai Huang , Ziyou Jiang , Yang Liu , Qing Wang

AI developers often apply safety alignment procedures to prevent the misuse of their AI systems. For example, before Meta released Llama 2-Chat - a collection of instruction fine-tuned large language models - they invested heavily in safety…

Machine Learning · Computer Science 2024-05-24 Simon Lermen , Charlie Rogers-Smith , Jeffrey Ladish

As large language models continue to grow in size, parameter-efficient fine-tuning (PEFT) has become increasingly crucial. While low-rank adaptation (LoRA) offers a solution through low-rank updates, its static rank allocation may yield…

Machine Learning · Computer Science 2025-04-14 Hao Nan Sheng , Zhi-yong Wang , Mingrui Yang , Hing Cheung So