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Large language models (LLMs) achieved remarkable performance across various tasks. However, they face challenges in managing long documents and extended conversations, due to significantly increased computational requirements, both in…

Computation and Language · Computer Science 2023-10-11 Yucheng Li , Bo Dong , Chenghua Lin , Frank Guerin

In this work, we benchmark various graph-based retrieval-augmented generation (RAG) systems across a broad spectrum of query types, including OLTP-style (fact-based) and OLAP-style (thematic) queries, to address the complex demands of…

Information Retrieval · Computer Science 2025-03-06 Joyce Cahoon , Prerna Singh , Nick Litombe , Jonathan Larson , Ha Trinh , Yiwen Zhu , Andreas Mueller , Fotis Psallidas , Carlo Curino

Large language models have shown tremendous performance in a variety of tasks. In-context learning -- the ability to improve at a task after being provided with a number of demonstrations -- is seen as one of the main contributors to their…

Computation and Language · Computer Science 2023-05-23 Julian Coda-Forno , Marcel Binz , Zeynep Akata , Matthew Botvinick , Jane X. Wang , Eric Schulz

Large Language Models (LLMs) encounter challenges in efficiently processing long-text queries, as seen in applications like enterprise document analysis and financial report comprehension. While conventional solutions employ long-context…

Computation and Language · Computer Science 2025-03-06 Yulong Hui , Yihao Liu , Yao Lu , Huanchen Zhang

Open-domain multi-turn conversations mainly have three features, which are hierarchical semantic structure, redundant information, and long-term dependency. Grounded on these, selecting relevant context becomes a challenge step for…

Computation and Language · Computer Science 2021-02-19 Lei Shen , Haolan Zhan , Xin Shen , Yang Feng

Retrieval-augmented generation (RAG) frameworks enable large language models (LLMs) to retrieve relevant information from a knowledge base and incorporate it into the context for generating responses. This mitigates hallucinations and…

Computation and Language · Computer Science 2024-04-09 Pouria Rouzrokh , Shahriar Faghani , Cooper U. Gamble , Moein Shariatnia , Bradley J. Erickson

Open-domain long-form text generation requires generating coherent, comprehensive responses that address complex queries with both breadth and depth. This task is challenging due to the need to accurately capture diverse facets of input…

Information Retrieval · Computer Science 2024-10-22 Kashob Kumar Roy , Pritom Saha Akash , Kevin Chen-Chuan Chang , Lucian Popa

Document-level context for neural machine translation (NMT) is crucial to improve the translation consistency and cohesion, the translation of ambiguous inputs, as well as several other linguistic phenomena. Many works have been published…

Computation and Language · Computer Science 2023-06-09 Christian Herold , Hermann Ney

This paper presents a novel method for parsing and vectorizing semi-structured data to enhance the functionality of Retrieval-Augmented Generation (RAG) within Large Language Models (LLMs). We developed a comprehensive pipeline for…

Databases · Computer Science 2024-05-09 Hang Yang , Jing Guo , Jianchuan Qi , Jinliang Xie , Si Zhang , Siqi Yang , Nan Li , Ming Xu

Reasoning over long contexts is essential for large language models. While reinforcement learning (RL) enhances short-context reasoning by inducing "Aha" moments in chain-of-thought, the advanced thinking patterns required for long-context…

Computation and Language · Computer Science 2025-10-28 Siyuan Wang , Gaokai Zhang , Li Lyna Zhang , Ning Shang , Fan Yang , Dongyao Chen , Mao Yang

As large language models increasingly gain popularity in real-world applications, processing extremely long contexts, often exceeding the model's pre-trained context limits, has emerged as a critical challenge. While existing approaches to…

In this paper, we propose an end-to-end Retrieval-Augmented Visual Language Model (REVEAL) that learns to encode world knowledge into a large-scale memory, and to retrieve from it to answer knowledge-intensive queries. REVEAL consists of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Ziniu Hu , Ahmet Iscen , Chen Sun , Zirui Wang , Kai-Wei Chang , Yizhou Sun , Cordelia Schmid , David A. Ross , Alireza Fathi

Open-retrieval question answering systems are generally trained and tested on large datasets in well-established domains. However, low-resource settings such as new and emerging domains would especially benefit from reliable question…

Computation and Language · Computer Science 2022-01-28 Alon Albalak , Sharon Levy , William Yang Wang

Question answering is one of the most important and difficult applications at the border of information retrieval and natural language processing, especially when we talk about complex science questions which require some form of inference…

Computation and Language · Computer Science 2019-05-08 George-Sebastian Pirtoaca , Traian Rebedea , Stefan Ruseti

Open-domain response generation is the task of generating sensible and informative re-sponses to the source sentence. However, neural models tend to generate safe and mean-ingless responses. While cue-word introducing approaches encourage…

Computation and Language · Computer Science 2020-10-13 Qiansheng Wang , Yuxin Liu , Chengguo Lv , Zhen Wang , Guohong Fu

Retrieval-augmented generation (RAG) systems rely on accurate document retrieval to ground large language models (LLMs) in external knowledge, yet retrieval quality often degrades in corpora where topics overlap and thematic variation is…

Information Retrieval · Computer Science 2026-01-06 Rodrigo Kataishi

Retrieval-augmented generation (RAG) effectively addresses issues of static knowledge and hallucination in large language models. Existing studies mostly focus on question scenarios with clear user intents and concise answers. However, it…

Computation and Language · Computer Science 2025-02-18 Shuting Wang , Xin Yu , Mang Wang , Weipeng Chen , Yutao Zhu , Zhicheng Dou

Large language models (LLMs) have shown remarkable capabilities in natural language processing; however, they still face difficulties when tasked with understanding lengthy contexts and executing effective question answering. These…

Computation and Language · Computer Science 2025-08-18 Yanming Liu , Xinyue Peng , Jiannan Cao , Yanxin Shen , Tianyu Du , Sheng Cheng , Xun Wang , Jianwei Yin , Xuhong Zhang

Retrieval-augmented large language models (LLMs) leverage relevant content retrieved by information retrieval systems to generate correct responses, aiming to alleviate the hallucination problem. However, existing retriever-responder…

Computation and Language · Computer Science 2024-06-26 Taolin Zhang , Dongyang Li , Qizhou Chen , Chengyu Wang , Longtao Huang , Hui Xue , Xiaofeng He , Jun Huang

We present a retrieval-augmented question answering framework for 5G/6G networks, where the Open Radio Access Network (O-RAN) has become central to disaggregated, virtualized, and AI-driven wireless systems. While O-RAN enables multi-vendor…

Networking and Internet Architecture · Computer Science 2026-01-07 Nathan Conger , Nathan Scollar , Kemal Davaslioglu , Yalin E. Sagduyu , Sastry Kompella