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~ similar to 2604.27487v1· 18 results

cs.LGcs.CLRecentMay 28, 2026

CSULoRA: Closest Safe Update Low-Rank Adaptation

Oleksandr Marchenko Breneur, Adelaide Danilov, Aria Nourbakhsh, Salima Lamsiyah

CSULoRA is a post-hoc method that corrects trained LoRA adapters by estimating a safety-aligned subspace and solving a penalized minimum-change problem to attenuate unsafe update directions while pres…

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cs.LGcs.AIcs.CVRecentMay 30, 2026

SORA: Free Second-Order Attacks in Fast Adversarial Training

Mazdak Teymourian, Ramtin Moslemi, Farzan Rahmani, Mohammad Hossein Rohban

The paper introduces SORA, an adaptive adversarial training method that dynamically adjusts perturbation sizes to prevent Catastrophic Overfitting, achieving state-of-the-art robustness and clean accu…

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cs.LGcs.AIcs.CRRecentMay 6, 2026

Information Theoretic Adversarial Training of Large Language Models

Yiwei Zhang, Jeremiah Birrell, Reza Ebrahimi, Rouzbeh Behnia +2 more

The paper proposes WARDEN, a distributionally robust adversarial training framework that significantly reduces LLM vulnerability to adversarial attacks by dynamically reweighting hard adversarial exam…

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cs.CRcs.AIRecentMay 17, 2026

When Efficiency Backfires: Cascading LLMs Trigger Cascade Failure under Adversarial Attack

Zehan Sun, Dingfan Chen, Songze Li

This paper demonstrates that LLM cascade systems, designed for efficiency, are vulnerable to targeted adversarial attacks that simultaneously degrade both performance and cost-efficiency.

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cs.CRcs.AIRecentMar 30, 2026

Adversarial Attacks on Multimodal Large Language Models: A Comprehensive Survey

Bhavuk Jain, Sercan Ö. Arık, Hardeo K. Thakur

This survey provides a comprehensive taxonomy and vulnerability-centric analysis of adversarial attacks targeting Multimodal Large Language Models (MLLMs), offering an explanatory framework for enhanc…

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cs.CRcs.AIcs.CVRecentMay 15, 2026

DarkLLM: Learning Language-Driven Adversarial Attacks with Large Language Models

Ye Sun, Xin Wang, Jiaming Zhang, Yifeng Gao +6 more

DarkLLM introduces a novel framework that uses a Large Language Model (LLM) to translate natural language instructions into flexible, latent adversarial attack vectors, demonstrating a systemic vulner…

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cs.CRRecentMay 8, 2026

Improving Parameter-Efficient Federated Learning with Differentially Private Refactorization

Linh Tran, Ana Milanova, Stacy Patterson

The paper proposes FedPower, a novel differentially private cross-silo Federated Learning framework that uses PowerDP to reconstruct and project client updates into a secure low-rank space, effectivel…

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cs.CRcs.CVcs.LGRecentMay 13, 2026

LoREnc: Low-Rank Encryption for Securing Foundation Models and LoRA Adapters

Beomjin Ahn, Jungmin Kwon, Chanyong Jung, Jaewook Chung

LoREnc is a novel, training-free framework that secures Foundation Models (FMs) and LoRA adapters against intellectual property leakage and model recovery attacks by spectrally truncating weights and…

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cs.LGstat.MLEmpiricalRecentJul 26, 2026

The Intruder Threshold: A Spectral Law for LoRA Fine-Tuning

Peng Xie

This paper derives a method to predict and mitigate intruder dimensions caused by LoRA fine-tuning in deep learning models, improving performance and reducing forgetting.

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cs.LGcs.AIRecentMay 27, 2026

Efficient Pre-Training of LLMs through Truncated SVD Layers

Kaivan Kamali, Kajetan Schweighofer, Hormoz Shahrzad, Olivier Francon +2 more

The paper introduces TSVD, a novel framework that efficiently pre-trains LLMs by enforcing both low rank and strict weight orthonormality, achieving performance comparable to full-parameter models wit…

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cs.SDcs.AIcs.CRRecentJun 4, 2026

Beyond Waveform Robustness: Robust Feature-Vocoder Adversarial Attacks on Automatic Speech Recognition

Yifan Liao, Zongmin Zhang, Zhen Sun, Yuhui Sun +2 more

The paper introduces a novel Clean-Referenced Feature-Vocoder Attack, a black-box adversarial attack that perturbs high-level SSL feature representations instead of raw audio waveforms, achieving supe…

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cs.CRcs.AIcs.LGRecentMay 24, 2026

Security in the Fine-Tuning Lifecycle of Large Language Models: Threats, Defenses,Evaluation, and Future Directions

Wenjuan Li, Yitao Liu, Runze Chen, Rajkumar Buyya

This paper provides a systematic, lifecycle-based framework for analyzing security threats and defenses across the entire fine-tuning process of LLMs, revealing that attack effectiveness is highly mod…

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eess.ASEmpiricalRecentJul 24, 2026

How Meta-Learning Shapes LoRA Adapter Geometry in Speech Deepfake Detection

Ivan Kukanov, Janne Laakkonen, Ville Hautamäki

This paper compares the geometry of solutions left by different objectives in low-rank adapters for speech deepfake detection using the empirical Fisher diagnostic.

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cs.CRcs.AIRecentMay 11, 2026

Threat Modelling using Domain-Adapted Language Models: Empirical Evaluation and Insights

Saba Pourhanifeh, AbdulAziz AbdulGhaffar, Ashraf Matrawy

The paper empirically evaluates domain-adapted and general-purpose LLMs for structured threat modelling (STRIDE on 5G security), finding that domain adaptation and model size do not guarantee reliable…

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