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A fundamental issue in deep learning has been adversarial robustness. As these systems have scaled, such issues have persisted. Currently, large language models (LLMs) with billions of parameters suffer from adversarial attacks just like…

机器学习 · 计算机科学 2025-02-11 Brian Formento , Chuan Sheng Foo , See-Kiong Ng

Human-AI conversation frequently relies on quoting earlier text-"check it with the formula I just highlighted"-yet today's large language models (LLMs) lack an explicit mechanism for locating and exploiting such spans. We formalise the…

人工智能 · 计算机科学 2025-06-02 Yueqi Zhang , Peiwen Yuan , Shaoxiong Feng , Yiwei Li , Xinglin Wang , Jiayi Shi , Chuyi Tan , Boyuan Pan , Yao Hu , Kan Li

Large language models (LLMs) face significant challenges in processing long contexts due to the linear growth of the key-value (KV) cache and quadratic complexity of self-attention. Existing approaches address these bottlenecks separately:…

计算与语言 · 计算机科学 2026-04-17 Zeng You , Yaofo Chen , Qiuwu Chen , Ying Sun , Shuhai Zhang , Yingjian Li , Yaowei Wang , Mingkui Tan

Large Language Models (LLMs) have been widely deployed in a variety of applications, and the context length is rapidly increasing to handle tasks such as long-document QA and complex logical reasoning. However, long context poses…

机器学习 · 计算机科学 2025-06-17 Guangda Liu , Chengwei Li , Jieru Zhao , Chenqi Zhang , Minyi Guo

Large Language Models are a promising tool for automated vulnerability detection, thanks to their success in code generation and repair. However, despite widespread adoption, a critical question remains: Are LLMs truly effective at…

密码学与安全 · 计算机科学 2025-04-21 Yue Li , Xiao Li , Hao Wu , Minghui Xu , Yue Zhang , Xiuzhen Cheng , Fengyuan Xu , Sheng Zhong

Large language models (LLMs) struggle with maintaining coherence in extended conversations spanning hundreds of turns, despite performing well within their context windows. This paper introduces HEMA (Hippocampus-Inspired Extended Memory…

计算与语言 · 计算机科学 2025-04-24 Kwangseob Ahn

Long context compression is a critical research problem due to its significance in reducing the high computational and memory costs associated with LLMs. In this paper, we propose Activation Beacon, a plug-in module for transformer-based…

计算与语言 · 计算机科学 2024-10-14 Peitian Zhang , Zheng Liu , Shitao Xiao , Ninglu Shao , Qiwei Ye , Zhicheng Dou

Memory retention challenges in deep neural architectures have ongoing limitations in the ability to process and recall extended contextual information. Token dependencies degrade as sequence length increases, leading to a decline in…

计算与语言 · 计算机科学 2025-03-26 Frederick Dillon , Gregor Halvorsen , Simon Tattershall , Magnus Rowntree , Gareth Vanderpool

Biomedical entity linking maps textual mentions to concepts in structured knowledge bases such as UMLS or SNOMED CT. Most existing systems link each mention independently, using only the mention or its surrounding sentence. This ignores…

计算与语言 · 计算机科学 2026-05-14 Adam Remaki , Xavier Tannier , Christel Gérardin

Foundation models often generate unreliable answers, while heuristic uncertainty estimators fail to fully distinguish correct from incorrect outputs, causing users to accept erroneous answers without any statistical guarantee. We address…

人工智能 · 计算机科学 2026-05-27 Zhiyuan Wang , Aniri , Tianlong Chen , Yue Zhang , Heng Tao Shen , Xiaoshuang Shi , Kaidi Xu

Computer vision models suffer from a phenomenon known as catastrophic forgetting when learning novel concepts from continuously shifting training data. Typical solutions for this continual learning problem require extensive rehearsal of…

Despite careful safety alignment, current large language models (LLMs) remain vulnerable to various attacks. To further unveil the safety risks of LLMs, we introduce a Safety Concept Activation Vector (SCAV) framework, which effectively…

计算与语言 · 计算机科学 2024-12-03 Zhihao Xu , Ruixuan Huang , Changyu Chen , Xiting Wang

This study delves into the capabilities and limitations of Large Language Models (LLMs) in the challenging domain of conditional question-answering. Utilizing the Conditional Question Answering (CQA) dataset and focusing on generative…

计算与语言 · 计算机科学 2023-12-05 Syed-Amad Hussain , Parag Pravin Dakle , SaiKrishna Rallabandi , Preethi Raghavan

While Large Language Models (LLMs) have revolutionized scientific text processing, they exhibit a significant capability gap when interpreting chemical reaction diagrams. We identify two fundamental bottlenecks restricting current systems:…

人工智能 · 计算机科学 2026-05-19 Mingyang Rao , Kehua Feng , Zhihui Zhu , Jiangzhen Fu , Hao Yu , Keyan Ding , Huajun Chen

Calibration measures whether a model's predicted confidence aligns with its empirical accuracy, and is central to the reliable deployment of large language models (LLMs) in high-stakes domains such as medicine and law. While much recent…

计算与语言 · 计算机科学 2026-05-12 Zhanliang Wang , Jiancong Xiao , Ruochen Jin , Shu Yang , Bojian Hou , Li Shen

Large Language Models (LLMs) are being increasingly used in software engineering tasks, with an increased focus on bug report resolution over the past year. However, most proposed systems fail to properly handle uncertain or incorrect…

软件工程 · 计算机科学 2025-06-24 Noble Saji Mathews , Meiyappan Nagappan

Memory-augmented large language models extend reasoning beyond a fixed context window by maintaining long-term memory across interactions. However, existing memory systems often collapse stable user facts, episodic events, and behavioral…

How to efficiently serve LLMs in practice has become exceptionally challenging due to their prohibitive memory and computation requirements. In this study, we investigate optimizing the KV cache, whose memory footprint poses a critical…

计算与语言 · 计算机科学 2025-06-10 Akshat Sharma , Hangliang Ding , Jianping Li , Neel Dani , Minjia Zhang

Visual perception in modern Vision-Language Models (VLMs) is constrained by a perceptual bandwidth bottleneck: a broad field of view preserves global context but sacrifices the fine-grained details required for complex reasoning. We argue…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Anjie Liu , Ziqin Gong , Yan Song , Yuxiang Chen , Xiaolong Liu , Hengtong Lu , Kaike Zhang , Chen Wei , Jun Wang

Standard approaches to Robust Reinforcement Learning assume that feedback sources are either globally trustworthy or globally adversarial. In this paper, we challenge this assumption and we identify a more subtle failure mode. We term this…

人工智能 · 计算机科学 2026-03-17 Majid Ghasemi , Mark Crowley