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Jailbreaking large language models (LLMs) has emerged as a critical security challenge with the widespread deployment of conversational AI systems. Adversarial users exploit these models through carefully crafted prompts to elicit…

Cryptography and Security · Computer Science 2026-02-23 Sri Durga Sai Sowmya Kadali , Evangelos E. Papalexakis

Speech large language models (LLMs) have driven significant progress in end-to-end speech understanding and recognition, yet they continue to struggle with accurately recognizing rare words and domain-specific terminology. This paper…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-21 Bo Ren , Ruchao Fan , Yelong Shen , Weizhu Chen , Jinyu Li

Large language models (LLMs) have shown remarkable success in language modelling due to scaling laws found in model size and the hidden dimension of the model's text representation. Yet, we demonstrate that compressed representations of…

Computation and Language · Computer Science 2025-02-05 Felix Drinkall , Janet B. Pierrehumbert , Stefan Zohren

Automatic Speech Recognition (ASR) systems are pivotal in transcribing speech into text, yet the errors they introduce can significantly degrade the performance of downstream tasks like summarization. This issue is particularly pronounced…

Large Language Models (LLMs) have transformed artificial intelligence by advancing natural language understanding and generation, enabling applications across fields beyond healthcare, software engineering, and conversational systems.…

Background: While Large Language Models (LLMs) have achieved widespread adoption, malicious prompt engineering specifically "jailbreak attacks" poses severe security risks by inducing models to bypass internal safety mechanisms. Current…

Computers and Society · Computer Science 2026-01-21 Chutian Huang , Dake Cao , Jiacheng Ji , Yunlou Fan , Chengze Yan , Hanhui Xu

As large language models (LLMs) become easily accessible nowadays, the trade-off between safety and helpfulness can significantly impact user experience. A model that prioritizes safety will cause users to feel less engaged and assisted…

Computation and Language · Computer Science 2024-04-02 Yi-Lin Tuan , Xilun Chen , Eric Michael Smith , Louis Martin , Soumya Batra , Asli Celikyilmaz , William Yang Wang , Daniel M. Bikel

Recently, the powerful large language models (LLMs) have been instrumental in propelling the progress of recommender systems (RS). However, while these systems have flourished, their susceptibility to security threats has been largely…

Computation and Language · Computer Science 2024-06-06 Jinghao Zhang , Yuting Liu , Qiang Liu , Shu Wu , Guibing Guo , Liang Wang

As multimodal reasoning improves the overall capabilities of Large Vision Language Models (LVLMs), recent studies have begun to explore safety-oriented reasoning, aiming to enhance safety awareness by analyzing potential safety risks during…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Fenghua Weng , Chaochao Lu , Xia Hu , Wenqi Shao , Wenjie Wang

Recent studies reveal that Large Language Models (LLMs) face challenges in balancing safety with utility, particularly when processing long texts for NLP tasks like summarization and translation. Despite defenses against malicious short…

Computation and Language · Computer Science 2024-05-27 Yu Fu , Wen Xiao , Jia Chen , Jiachen Li , Evangelos Papalexakis , Aichi Chien , Yue Dong

Large language model (LLM) agents achieve impressive single-task performance but commonly exhibit repeated failures, inefficient exploration, and limited cross-task adaptability. Existing reflective strategies (e.g., Reflexion, ReAct)…

Artificial Intelligence · Computer Science 2025-09-09 Chunlong Wu , Ye Luo , Zhibo Qu , Min Wang

As vision-language models (VLMs) become increasingly capable, maintaining a balance between safety and usefulness remains a central challenge. Safety mechanisms, while essential, can backfire, causing over-refusal, where models decline…

Computation and Language · Computer Science 2026-03-20 Kaixuan Ren , Preslav Nakov , Usman Naseem

As large language models~(LLMs) become widely adopted, ensuring their alignment with human values is crucial to prevent jailbreaks where adversaries manipulate models to produce harmful content. While most defenses target single-turn…

Computation and Language · Computer Science 2025-09-19 Siyu Yan , Long Zeng , Xuecheng Wu , Chengcheng Han , Kongcheng Zhang , Chong Peng , Xuezhi Cao , Xunliang Cai , Chenjuan Guo

Large language models (LLMs) can often accurately describe probability distributions using natural language, yet they still struggle to generate faithful samples from them. This mismatch limits their use in tasks requiring reliable…

Machine Learning · Computer Science 2026-04-24 Tim Z. Xiao , Johannes Zenn , Zhen Liu , Weiyang Liu , Robert Bamler , Bernhard Schölkopf

The integration of new modalities enhances the capabilities of multimodal large language models (MLLMs) but also introduces additional vulnerabilities. In particular, simple visual jailbreaking attacks can manipulate open-source MLLMs more…

Machine Learning · Computer Science 2026-03-03 Runqi Lin , Alasdair Paren , Suqin Yuan , Muyang Li , Philip Torr , Adel Bibi , Tongliang Liu

Multi-Objective Reinforcement Learning (MORL) presents significant challenges and opportunities for optimizing multiple objectives in Large Language Models (LLMs). We introduce a MORL taxonomy and examine the advantages and limitations of…

Computation and Language · Computer Science 2025-09-29 Lingxiao Kong , Cong Yang , Oya Deniz Beyan , Zeyd Boukhers

Large Language Models (LLMs) have ushered in a new era in Natural Language Processing, but their massive size demands effective compression techniques for practicality. Although numerous model compression techniques have been investigated,…

Computation and Language · Computer Science 2025-05-06 Hongchuan Zeng , Hongshen Xu , Lu Chen , Kai Yu

Large Language Models (LLMs) have achieved tremendous success in various tasks, yet concerns about their safety and security have emerged. In particular, they pose risks of generating harmful content and are vulnerable to jailbreaking…

Cryptography and Security · Computer Science 2026-04-21 Zeming Wei , Chengcan Wu , Meng Sun

Stakeholders -- from model developers to policymakers -- seek to minimize the dual-use risks of large language models (LLMs). An open challenge to this goal is whether technical safeguards can impede the misuse of LLMs, even when models are…

Cryptography and Security · Computer Science 2024-12-11 Xiangyu Qi , Boyi Wei , Nicholas Carlini , Yangsibo Huang , Tinghao Xie , Luxi He , Matthew Jagielski , Milad Nasr , Prateek Mittal , Peter Henderson

Large Language Models (LLMs), now a foundation in advancing natural language processing, power applications such as text generation, machine translation, and conversational systems. Despite their transformative potential, these models…

Cryptography and Security · Computer Science 2025-08-05 Kang Chen , Xiuze Zhou , Yuanguo Lin , Jinhe Su , Yuanhui Yu , Li Shen , Fan Lin