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Large language models (LLMs) excel in generating coherent text, but they often struggle with context awareness, leading to inaccuracies in tasks requiring faithful adherence to provided information. We introduce FastMem, a novel method…

计算与语言 · 计算机科学 2024-10-08 Junyi Zhu , Shuochen Liu , Yu Yu , Bo Tang , Yibo Yan , Zhiyu Li , Feiyu Xiong , Tong Xu , Matthew B. Blaschko

Despite the growing development of long-context large language models (LLMs), data-centric approaches relying on synthetic data have been hindered by issues related to faithfulness, which limit their effectiveness in enhancing model…

计算与语言 · 计算机科学 2025-05-30 Cehao Yang , Xueyuan Lin , Chengjin Xu , Xuhui Jiang , Shengjie Ma , Aofan Liu , Hui Xiong , Jian Guo

Large language models (LLMs) often produce content that contradicts or overlooks information provided in the input context, a phenomenon known as faithfulness hallucination. In this paper, we propose Context-Fidelity Boosting (CFB), a…

计算与语言 · 计算机科学 2026-04-27 Weixu Zhang , Fanghua Ye , Qiang Gao , Jian Li , Haolun Wu , Yuxing Tian , Sijing Duan , Nan Du , Xiaolong Li , Xue Liu

Large language models (LLMs) process entire input contexts indiscriminately, which is inefficient when the information required to answer a query is localized within the context. We present dynamic context cutoff, a novel method enabling…

计算与语言 · 计算机科学 2026-02-10 Roy Xie , Junlin Wang , Paul Rosu , Chunyuan Deng , Bolun Sun , Zihao Lin , Bhuwan Dhingra

Recent advancements in Large Language Models (LLMs) have significantly enhanced their capacity to process long contexts. However, effectively utilizing this long context remains a challenge due to the issue of distraction, where irrelevant…

计算与语言 · 计算机科学 2024-11-12 Zijun Wu , Bingyuan Liu , Ran Yan , Lei Chen , Thomas Delteil

Retrieval-augmented generation (RAG) improves Large Language Models (LLMs) by incorporating external information into the response generation process. However, how context-faithful LLMs are and what factors influence LLMs' context…

计算与语言 · 计算机科学 2025-07-11 Yuepei Li , Kang Zhou , Qiao Qiao , Bach Nguyen , Qing Wang , Qi Li

User prompts to large language models (LLMs) are often ambiguous or under-specified, and subtle contextual cues shaped by user intentions, prior knowledge, and risk factors strongly influence what constitutes an appropriate response.…

Large Language Models (LLMs) possess remarkable generalization capabilities but struggle with multi-task adaptation, particularly in balancing knowledge retention with task-specific specialization. Conventional fine-tuning methods suffer…

人工智能 · 计算机科学 2025-10-21 Dayan Pan , Zhaoyang Fu , Jingyuan Wang , Xiao Han , Yue Zhu , Xiangyu Zhao

Linear activation steering is a powerful approach for eliciting the capabilities of large language models and specializing their behavior using limited labeled data. While effective, existing methods often apply a fixed steering strength to…

计算与语言 · 计算机科学 2026-04-28 Brandon Hsu , Daniel Beaglehole , Adityanarayanan Radhakrishnan , Mikhail Belkin

Large Language Models (LLMs) struggle with long-horizon tasks due to the "context bottleneck" and the "lost-in-the-middle" phenomenon, where accumulated noise from verbose environments degrades reasoning over multi-turn interactions. To…

人工智能 · 计算机科学 2026-04-14 Xiaozhe Li , Tianyi Lyu , Yizhao Yang , Liang Shan , Siyi Yang , Ligao Zhang , Zhuoyi Huang , Qingwen Liu , Yang Li

In this paper, we demonstrate that an inherent waveform pattern in the attention allocation of large language models (LLMs) significantly affects their performance in tasks demanding a high degree of context awareness, such as utilizing…

计算与语言 · 计算机科学 2024-06-05 Yuhan Chen , Ang Lv , Ting-En Lin , Changyu Chen , Yuchuan Wu , Fei Huang , Yongbin Li , Rui Yan

The development of Long-Context Large Language Models (LLMs) has markedly advanced natural language processing by facilitating the process of textual data across long documents and multiple corpora. However, Long-Context LLMs still face two…

计算与语言 · 计算机科学 2024-10-10 Jingyang Deng , Zhengyang Shen , Boyang Wang , Lixin Su , Suqi Cheng , Ying Nie , Junfeng Wang , Dawei Yin , Jinwen Ma

Recent benchmarks reveal that despite strong reasoning capabilities, large language models (LLMs) still struggle to faithfully apply complex contextual knowledge. These failures are often not wholesale reasoning collapses: in context-rich…

计算与语言 · 计算机科学 2026-05-27 Hongbo Jin , Chi Wang , Haoran Tang , Zhongjing Du , Xu Jiang , Jingqi Tian , Qiaoman Zhang , Jiayu Ding

Ensuring contextual faithfulness in retrieval-augmented large language models (LLMs) is crucial for building trustworthy information-seeking systems, particularly in long-form question-answering (LFQA) scenarios. In this work, we identify a…

Large language models (LLMs) draw on both contextual information and parametric memory, yet these sources can conflict. Prior studies have largely examined this issue in contextual question answering, implicitly assuming that tasks should…

计算与语言 · 计算机科学 2026-04-21 Kaiser Sun , Fan Bai , Mark Dredze

Large Language Models (LLMs) are prone to generating fluent but incorrect content, known as confabulation, which poses increasing risks in multi-turn or agentic applications where outputs may be reused as context. In this work, we…

计算与语言 · 计算机科学 2026-03-18 Tianyi Zhou , Johanne Medina , Sanjay Chawla

Large language models (LLMs) now solve multi-step problems by emitting extended chains of thought. During the process, they often re-derive the same intermediate steps across problems, inflating token usage and latency. This saturation of…

机器学习 · 计算机科学 2025-09-17 Aniket Didolkar , Nicolas Ballas , Sanjeev Arora , Anirudh Goyal

In recent years, Large Language Models (LLMs) have garnered significant attention from the research community due to their exceptional performance and generalization capabilities. In this paper, we introduce a novel method for…

音频与语音处理 · 电气工程与系统科学 2023-09-21 Egor Lakomkin , Chunyang Wu , Yassir Fathullah , Ozlem Kalinli , Michael L. Seltzer , Christian Fuegen

Large Language Models (LLMs) exhibit impressive performance across diverse domains but often suffer from overconfidence, limiting their reliability in critical applications. We propose SteerConf, a novel framework that systematically steers…

计算与语言 · 计算机科学 2025-05-27 Ziang Zhou , Tianyuan Jin , Jieming Shi , Qing Li

Large Language Models (LLMs) have demonstrated exceptional abilities across a broad range of language-related tasks, including generating solutions to complex reasoning problems. An effective technique to enhance LLM performance is…

计算与语言 · 计算机科学 2024-12-25 Shuzhang Cai , Twumasi Mensah-Boateng , Xander Kuksov , Jing Yuan , Shaojie Tang