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Related papers: Unsupervised Document Expansion for Information Re…

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Tasks involving text generation based on multiple input texts, such as multi-document summarization, long-form question answering and contemporary dialogue applications, challenge models for their ability to properly consolidate…

Computation and Language · Computer Science 2023-05-26 Eran Hirsch , Valentina Pyatkin , Ruben Wolhandler , Avi Caciularu , Asi Shefer , Ido Dagan

Generative retrieval (GR) reframes document retrieval as an end-to-end task of generating sequential document identifiers (DocIDs). Existing GR methods predominantly rely on left-to-right auto-regressive decoding, which suffers from two…

Information Retrieval · Computer Science 2026-02-04 Xinpeng Zhao , Zhaochun Ren , Yukun Zhao , Zhenyang Li , Mengqi Zhang , Jun Feng , Ran Chen , Ying Zhou , Zhumin Chen , Shuaiqiang Wang , Dawei Yin , Xin Xin

Query expansion is the reformulation of a user query by adding semantically related information, and is an essential component of monolingual and cross-lingual information retrieval used to ensure that relevant documents are not missed.…

Information Retrieval · Computer Science 2025-11-25 Olivia Macmillan-Scott , Roksana Goworek , Eda B. Özyiğit

Building upon the standard graph-based Retrieval-Augmented Generation (RAG), the introduction of heterogeneous graphs and hypergraphs aims to enrich retrieval and generation by leveraging the relationships between multiple entities through…

Computation and Language · Computer Science 2025-09-03 Xuecheng Zou , Ke Liu , Bingbing Wang , Huafei Deng , Li Zhang , Yu Tang

Retrieval-Augmented Generation (RAG) has gained significant attention in recent years for its potential to enhance natural language understanding and generation by combining large-scale retrieval systems with generative models. RAG…

Computation and Language · Computer Science 2025-03-18 Mingyue Cheng , Yucong Luo , Jie Ouyang , Qi Liu , Huijie Liu , Li Li , Shuo Yu , Bohou Zhang , Jiawei Cao , Jie Ma , Daoyu Wang , Enhong Chen

Retrieval-Augmented Generation (RAG) integrates non-parametric knowledge into Large Language Models (LLMs), typically from unstructured texts and structured graphs. While recent progress has advanced text-based RAG to multi-turn reasoning…

Computation and Language · Computer Science 2025-12-11 Yucan Guo , Miao Su , Saiping Guan , Zihao Sun , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng

The advent of Large Language Models has revolutionized information retrieval, ushering in a new era of expansive knowledge accessibility. While these models excel in providing open-world knowledge, effectively extracting answers in diverse…

Information Retrieval · Computer Science 2024-01-04 Syed Rameel Ahmad

This paper summarizes our work on the first track of the ninth Dialog System Technology Challenge (DSTC 9), "Beyond Domain APIs: Task-oriented Conversational Modeling with Unstructured Knowledge Access". The goal of the task is to generate…

Computation and Language · Computer Science 2021-02-10 David Thulke , Nico Daheim , Christian Dugast , Hermann Ney

Retrieval-Augmented Generation (RAG) has been proposed to mitigate hallucinations in large language models (LLMs), where generated outputs may be factually incorrect. However, existing RAG approaches predominantly rely on vector similarity…

Information Retrieval · Computer Science 2026-04-28 Miao Xie , Xiao Zhang , Yi Li , Chunli Lv

Effective disaster management requires rapid access to information distributed across structured operational records, unstructured institutional documents, and dynamic external sources. However, most existing disaster information systems…

Information Retrieval · Computer Science 2026-05-11 Bo Li , Zhitong Chen , Kai Yin , Junwei Ma , Yiming Xiao , Ali Mostafavi

Traditional query expansion techniques for addressing vocabulary mismatch problems in information retrieval are context-sensitive and may lead to performance degradation. As an alternative, document expansion research has gained attention,…

Information Retrieval · Computer Science 2025-09-22 Jisu Kim , Jinhee Park , Changhyun Jeon , Jungwoo Choi , Keonwoo Kim , Minji Hong , Sehyun Kim

Retrieval-Augmented Generation (RAG) systems using Multimodal Large Language Models (MLLMs) show great promise for complex document understanding, yet their development is critically hampered by inadequate evaluation. Current benchmarks…

Computation and Language · Computer Science 2025-08-06 Wenxuan Shen , Mingjia Wang , Yaochen Wang , Dongping Chen , Junjie Yang , Yao Wan , Weiwei Lin

Document set expansion aims to identify relevant documents from a large collection based on a small set of documents that are on a fine-grained topic. Previous work shows that PU learning is a promising method for this task. However, some…

Machine Learning · Computer Science 2024-01-23 Haiyang Zhang , Qiuyi Chen , Yuanjie Zou , Yushan Pan , Jia Wang , Mark Stevenson

In the rapidly changing world of smart technology, searching for documents has become more challenging due to the rise of advanced language models. These models sometimes face difficulties, like providing inaccurate information, commonly…

Information Retrieval · Computer Science 2025-03-20 Julien Pierre Edmond Ghali , Kosuke Shima , Koichi Moriyama , Atsuko Mutoh , Nobuhiro Inuzuka

Retrieval-Augmented Generation (RAG) enhances the accuracy of Large Language Model (LLM) responses by leveraging relevant external documents during generation. Although previous studies noted that retrieving many documents can degrade…

Computation and Language · Computer Science 2025-12-01 Shahar Levy , Nir Mazor , Lihi Shalmon , Michael Hassid , Gabriel Stanovsky

Retrieval-augmented generation (RAG) enables large language models (LLMs) to dynamically access external information, which is powerful for answering questions over previously unseen documents. Nonetheless, they struggle with high-level…

Artificial Intelligence · Computer Science 2026-04-21 Chi-Hsiang Hsiao , Yi-Cheng Wang , Tzung-Sheng Lin , Yi-Ren Yeh , Chu-Song Chen

Retrieval-Augmented Generation (RAG) has emerged as a promising technology for legal document consultation, yet its application in Chinese legal scenarios faces two key limitations: existing benchmarks lack specialized support for joint…

Computation and Language · Computer Science 2026-03-13 Yaocong Li , Qiang Lan , Leihan Zhang , Le Zhang

Information Retrieval (IR) systems are crucial tools for users to access information, which have long been dominated by traditional methods relying on similarity matching. With the advancement of pre-trained language models, generative…

Information Retrieval · Computer Science 2025-03-05 Xiaoxi Li , Jiajie Jin , Yujia Zhou , Yuyao Zhang , Peitian Zhang , Yutao Zhu , Zhicheng Dou

Large language models (LLMs) frequently generate confident yet factually incorrect content when used for language generation (a phenomenon often known as hallucination). Retrieval augmented generation (RAG) tries to reduce factual errors by…

Information Retrieval · Computer Science 2026-04-01 Dobrik Georgiev , Kheeran Naidu , Alberto Cattaneo , Federico Monti , Carlo Luschi , Daniel Justus

A Comparison of Independent and Joint Fine-tuning Strategies for Retrieval-Augmented Generation Download PDF Neal Gregory Lawton, Alfy Samuel, Anoop Kumar, Daben Liu Published: 20 Aug 2025, Retrieval augmented generation (RAG) is a popular…

Computation and Language · Computer Science 2025-10-21 Neal Gregory Lawton , Alfy Samuel , Anoop Kumar , Daben Liu