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Retrieved documents containing noise will hinder RAG from detecting answer clues and make the inference process slow and expensive. Therefore, context compression is necessary to enhance its accuracy and efficiency. Existing context…

Computation and Language · Computer Science 2026-04-28 Qianchi Zhang , Hainan Zhang , Liang Pang , Hongwei Zheng , Zhiming Zheng

Although existing model editing methods perform well in recalling exact edit facts, they often struggle in complex scenarios that require deeper semantic understanding rather than mere knowledge regurgitation. Leveraging the strong…

Computation and Language · Computer Science 2026-01-08 Shuaiyi Li , Zhisong Zhang , Yang Deng , Chenlong Deng , Tianqing Fang , Hongming Zhang , Haitao Mi , Dong Yu , Wai Lam

Retrieval-augmented generation improves the factual accuracy of Large Language Models (LLMs) by incorporating external context, but often suffers from irrelevant retrieved content that hinders effectiveness. Context compression addresses…

Computation and Language · Computer Science 2025-09-23 Lvzhou Luo , Yixuan Cao , Ping Luo

Prompt compression condenses contexts while maintaining their informativeness for different usage scenarios. It not only shortens the inference time and reduces computational costs during the usage of large language models, but also lowers…

Computation and Language · Computer Science 2024-10-21 Xiao Pu , Tianxing He , Xiaojun Wan

Cross-Lingual Summarization (CLS) is a task that extracts important information from a source document and summarizes it into a summary in another language. It is a challenging task that requires a system to understand, summarize, and…

Computation and Language · Computer Science 2022-04-26 Yu Bai , Heyan Huang , Kai Fan , Yang Gao , Yiming Zhu , Jiaao Zhan , Zewen Chi , Boxing Chen

Large Language Models (LLMs) excel in language tasks but are prone to hallucinations and outdated knowledge. Retrieval-Augmented Generation (RAG) mitigates these by grounding LLMs in external knowledge. However, in complex domains involving…

Computation and Language · Computer Science 2025-08-28 Peiran Zhou , Junnan Zhu , Yichen Shen , Ruoxi Yu

Retrieval-Augmented Generation (RAG) helps LLMs stay accurate, but feeding long documents into a prompt makes the model slow and expensive. This has motivated context compression, ranging from token pruning and summarization to…

Computation and Language · Computer Science 2026-01-09 Jianbo Li , Yi Jiang , Sendong Zhao , Bairui Hu , Haochun Wang , Bing Qin

Recent advancements in large language models (LLMs) have enabled their successful application to a broad range of tasks. However, in information-intensive tasks, the prompt length can grow fast, leading to increased computational…

Computation and Language · Computer Science 2025-10-13 Weronika Łajewska , Momchil Hardalov , Laura Aina , Neha Anna John , Hang Su , Lluís Màrquez

Retrieval-Augmented Generation (RAG) allows overcoming the limited knowledge of LLMs by extending the input with external information. As a consequence, the contextual inputs to the model become much longer which slows down decoding time…

Computation and Language · Computer Science 2024-10-30 David Rau , Shuai Wang , Hervé Déjean , Stéphane Clinchant

In-context learning (ICL) enhances the reasoning abilities of Large Language Models (LLMs) by prepending a few demonstrations. It motivates researchers to introduce more examples to provide additional contextual information for the…

Computation and Language · Computer Science 2025-05-27 Jun Gao , Qi Lv , Zili Wang , Tianxiang Wu , Ziqiang Cao , Wenjie Li

Current Large Language Models (LLMs) are not only limited to some maximum context length, but also are not able to robustly consume long inputs. To address these limitations, we propose ReadAgent, an LLM agent system that increases…

Computation and Language · Computer Science 2024-07-23 Kuang-Huei Lee , Xinyun Chen , Hiroki Furuta , John Canny , Ian Fischer

Retrieving documents and prepending them in-context at inference time improves performance of language model (LMs) on a wide range of tasks. However, these documents, often spanning hundreds of words, make inference substantially more…

Computation and Language · Computer Science 2023-10-09 Fangyuan Xu , Weijia Shi , Eunsol Choi

Personalizing large language models (LLMs) to individual users requires incorporating extensive interaction histories and profiles, but input token constraints make this impractical due to high inference latency and API costs. Existing…

Large language models (LLMs) require lengthy prompts as the input context to produce output aligned with user intentions, a process that incurs extra costs during inference. In this paper, we propose the Gist COnditioned deCOding…

Computation and Language · Computer Science 2024-02-27 Xinze Li , Zhenghao Liu , Chenyan Xiong , Shi Yu , Yukun Yan , Shuo Wang , Ge Yu

As retrieval-augmented generation (RAG) tackles complex tasks, increasingly expanded contexts offer richer information, but at the cost of higher latency and increased cognitive load on the model. To mitigate this bottleneck, especially for…

Computation and Language · Computer Science 2026-04-28 Jia-Chen Gu , Junyi Zhang , Di Wu , Yuankai Li , Kai-Wei Chang , Nanyun Peng

We propose the In-context Autoencoder (ICAE), leveraging the power of a large language model (LLM) to compress a long context into short compact memory slots that can be directly conditioned on by the LLM for various purposes. ICAE is first…

Computation and Language · Computer Science 2024-05-10 Tao Ge , Jing Hu , Lei Wang , Xun Wang , Si-Qing Chen , Furu Wei

Large language models (LLMs) have shown remarkable performance in complex reasoning tasks, but their efficiency is hindered by the substantial memory and computational costs associated with generating lengthy tokens. In this paper, we…

Computation and Language · Computer Science 2025-09-24 Jintian Zhang , Yuqi Zhu , Mengshu Sun , Yujie Luo , Shuofei Qiao , Lun Du , Da Zheng , Huajun Chen , Ningyu Zhang

Automatically summarizing large text collections is a valuable tool for document research, with applications in journalism, academic research, legal work, and many other fields. In this work, we contrast two classes of systems for…

Computation and Language · Computer Science 2025-02-11 Adithya Pratapa , Teruko Mitamura

Large Language Models (LLMs) have made significant strides in natural language processing and generation, yet their ability to handle long-context input remains constrained by the quadratic complexity of attention computation and…

Computation and Language · Computer Science 2025-06-16 Manlai Liang , Wanyi Huang , Mandi Liu , Huaijun Li , Jinlong Li

Large Language Models (LLMs) have demonstrated exceptional capabilities across diverse tasks. However, their deployment in long context scenarios remains hindered by computational inefficiency and information redundancy. Context compression…

Computation and Language · Computer Science 2026-03-09 Jiwei Tang , Shilei Liu , Zhicheng Zhang , Yujin Yuan , Libin Zheng , Wenbo Su , Bo Zheng
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