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Extending context windows (i.e., Long Context, LC) and using retrievers to selectively access relevant information (i.e., Retrieval-Augmented Generation, RAG) are the two main strategies to enable LLMs to incorporate extremely long external…

计算与语言 · 计算机科学 2025-01-06 Xinze Li , Yixin Cao , Yubo Ma , Aixin Sun

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 advancements in large language models (LLM) capable of processing extremely long texts highlight the need for a dedicated evaluation benchmark to assess their long-context capabilities. However, existing methods, like the…

计算与语言 · 计算机科学 2025-02-28 Taewhoo Lee , Chanwoong Yoon , Kyochul Jang , Donghyeon Lee , Minju Song , Hyunjae Kim , Jaewoo Kang

Large language models (LLMs) tend to inadequately integrate input context during text generation, relying excessively on encoded prior knowledge in model parameters, potentially resulting in generated text with factual inconsistencies or…

计算与语言 · 计算机科学 2024-05-07 Zheng Zhao , Emilio Monti , Jens Lehmann , Haytham Assem

Enlarging the context window of large language models (LLMs) has become a crucial research area, particularly for applications involving extremely long texts. In this work, we propose a novel training-free framework for processing long…

计算与语言 · 计算机科学 2024-10-15 Zihan Zhou , Chong Li , Xinyi Chen , Shuo Wang , Yu Chao , Zhili Li , Haoyu Wang , Rongqiao An , Qi Shi , Zhixing Tan , Xu Han , Xiaodong Shi , Zhiyuan Liu , Maosong Sun

Long-context understanding poses significant challenges in natural language processing, particularly for real-world dialogues characterized by speech-based elements, high redundancy, and uneven information density. Although large language…

计算与语言 · 计算机科学 2025-04-25 Yongxuan Wu , Runyu Chen , Peiyu Liu , Hongjin Qian

Large Language Models (LLMs) have made significant strides in handling long sequences. Some models like Gemini could even to be capable of dealing with millions of tokens. However, their performance evaluation has largely been confined to…

计算与语言 · 计算机科学 2024-06-13 Tianle Li , Ge Zhang , Quy Duc Do , Xiang Yue , Wenhu Chen

The efficient processing of long context poses a serious challenge for large language models (LLMs). Recently, retrieval-augmented generation (RAG) has emerged as a promising strategy for this problem, as it enables LLMs to make selective…

计算与语言 · 计算机科学 2025-02-18 Kun Luo , Zheng Liu , Peitian Zhang , Hongjin Qian , Jun Zhao , Kang Liu

Large Language Models (LLMs) have demonstrated remarkable performance across diverse tasks but are constrained by their small context window sizes. Various efforts have been proposed to expand the context window to accommodate even up to…

计算与语言 · 计算机科学 2024-04-09 Xuanfan Ni , Hengyi Cai , Xiaochi Wei , Shuaiqiang Wang , Dawei Yin , Piji Li

Vulnerability detection is a critical aspect of software security. Accurate detection is essential to prevent potential security breaches and protect software systems from malicious attacks. Recently, vulnerability detection methods…

软件工程 · 计算机科学 2025-04-24 Yixin Yang , Bowen Xu , Xiang Gao , Hailong Sun

Broad textual understanding and in-context learning require language models that utilize full document contexts. Due to the implementation challenges associated with directly training long-context models, many methods have been proposed for…

计算与语言 · 计算机科学 2024-09-24 Yi Lu , Jing Nathan Yan , Songlin Yang , Justin T. Chiu , Siyu Ren , Fei Yuan , Wenting Zhao , Zhiyong Wu , Alexander M. Rush

Large Language Models (LLMs) often generate inaccurate responses (hallucinations) when faced with questions beyond their knowledge scope. Retrieval-Augmented Generation (RAG) addresses this by leveraging external knowledge, but a critical…

信息检索 · 计算机科学 2025-09-10 Haoxiang Jin , Ronghan Li , Zixiang Lu , Qiguang Miao

LLMs can help humans working with long documents, but are known to hallucinate. Attribution can increase trust in LLM responses: The LLM provides evidence that supports its response, which enhances verifiability. Existing approaches to…

计算与语言 · 计算机科学 2024-10-24 Jan Buchmann , Xiao Liu , Iryna Gurevych

Conversational search requires accurate interpretation of user intent from complex multi-turn contexts. This paper presents ChatRetriever, which inherits the strong generalization capability of large language models to robustly represent…

信息检索 · 计算机科学 2024-04-23 Kelong Mao , Chenlong Deng , Haonan Chen , Fengran Mo , Zheng Liu , Tetsuya Sakai , Zhicheng Dou

Long context large language models (LLMs) are deployed in many real-world applications such as RAG, agent, and broad LLM-integrated applications. Given an instruction and a long context (e.g., documents, PDF files, webpages), a long context…

密码学与安全 · 计算机科学 2025-06-27 Yanting Wang , Wei Zou , Runpeng Geng , Jinyuan Jia

In this paper, we point out that the objective of the retrieval algorithms is to align with the LLM, which is similar to the objective of knowledge distillation in LLMs. We analyze the similarity in information focus between the distilled…

人工智能 · 计算机科学 2025-12-02 Jiaming Xu , Jiayi Pan , Hanzhen Wang , Yongkang Zhou , Jiancai Ye , Yu Wang , Guohao Dai

Handling long-context inputs is crucial for large language models (LLMs) in tasks such as extended conversations, document summarization, and many-shot in-context learning. While recent approaches have extended the context windows of LLMs…

计算与语言 · 计算机科学 2025-07-29 Lizhe Fang , Yifei Wang , Zhaoyang Liu , Chenheng Zhang , Stefanie Jegelka , Jinyang Gao , Bolin Ding , Yisen Wang

Estimating the cognitive complexity of reading comprehension (RC) items is crucial for assessing item difficulty before it is administered to learners. Unlike syntactic and semantic features, such as passage length or semantic similarity…

计算与语言 · 计算机科学 2026-05-20 Seonjeong Hwang , Hyounghun Kim , Gary Geunbae Lee

Recent advances in Large Language Models (LLMs) have highlighted the challenge of handling long-context tasks, where models need to reason over extensive input contexts to aggregate target information. While Chain-of-Thought (CoT) prompting…

计算与语言 · 计算机科学 2025-03-03 Dawei Zhu , Xiyu Wei , Guangxiang Zhao , Wenhao Wu , Haosheng Zou , Junfeng Ran , Xun Wang , Lin Sun , Xiangzheng Zhang , Sujian Li

Limited by the context window size of Large Language Models(LLMs), handling various tasks with input tokens exceeding the upper limit has been challenging, whether it is a simple direct retrieval task or a complex multi-hop reasoning task.…

计算与语言 · 计算机科学 2025-02-19 Xiaoju Ye , Zhichun Wang , Jingyuan Wang