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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…

计算与语言 · 计算机科学 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…

机器学习 · 计算机科学 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…

机器学习 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

机器学习 · 计算机科学 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…

密码学与安全 · 计算机科学 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…

密码学与安全 · 计算机科学 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…

机器学习 · 计算机科学 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…

密码学与安全 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算与语言 · 计算机科学 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…

人工智能 · 计算机科学 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…

机器学习 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

机器学习 · 计算机科学 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…

机器学习 · 计算机科学 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…

密码学与安全 · 计算机科学 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…

机器学习 · 计算机科学 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…

机器学习 · 计算机科学 2025-04-14 Hao Nan Sheng , Zhi-yong Wang , Mingrui Yang , Hing Cheung So