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With the rapid development of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) has become a predominant method in the field of professional knowledge-based question answering. Presently, major foundation model companies…

Artificial Intelligence · Computer Science 2024-01-24 Demiao Lin

Retrieval Augmented Generation (RAG) is a technique used to augment Large Language Models (LLMs) with contextually relevant, time-critical, or domain-specific information without altering the underlying model parameters. However,…

Information Retrieval · Computer Science 2024-08-20 Laurent Mombaerts , Terry Ding , Adi Banerjee , Florian Felice , Jonathan Taws , Tarik Borogovac

Large Language Models (LLMs) excel in data synthesis but can be inaccurate in domain-specific tasks, which retrieval-augmented generation (RAG) systems address by leveraging user-provided data. However, RAGs require optimization in both…

Computation and Language · Computer Science 2024-11-05 Kazi Ahmed Asif Fuad , Lizhong Chen

Multimodal large language models (MLLMs) have recently shown great progress in text-rich image understanding, yet they still struggle with complex, multi-page visually-rich documents. Traditional methods using document parsers for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Jian Chen , Ruiyi Zhang , Yufan Zhou , Tong Yu , Franck Dernoncourt , Jiuxiang Gu , Ryan A. Rossi , Changyou Chen , Tong Sun

Document Visual Question Answering (DocVQA) is a practical yet challenging task, which is to ask questions based on documents while referring to multiple pages and different modalities of information, e.g, images and tables. To handle…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Chelsi Jain , Yiran Wu , Yifan Zeng , Jiale Liu , S hengyu Dai , Zhenwen Shao , Qingyun Wu , Huazheng Wang

Retrieval-augmented generation (RAG) is increasingly deployed in enterprise search and document-centric assistants, where responses must be grounded in long and complex source materials. In practice, verifying that generated answers…

Computation and Language · Computer Science 2026-03-26 Xunzhuo Liu , Bowei He , Xue Liu , Haichen Zhang , Huamin Chen

Retrieval-Augmented Generation (RAG) systems extend large language models (LLMs) with external knowledge sources but introduce new attack surfaces through the retrieval pipeline. In particular, adversaries can poison retrieval corpora so…

Cryptography and Security · Computer Science 2026-03-20 Scott Thornton

In this paper, we introduce a new embedding model called M3-Embedding, which is distinguished for its versatility in \textit{Multi-Linguality}, \textit{Multi-Functionality}, and \textit{Multi-Granularity}. It provides a uniform support for…

Computation and Language · Computer Science 2025-12-15 Jianlv Chen , Shitao Xiao , Peitian Zhang , Kun Luo , Defu Lian , Zheng Liu

Retrieval-augmented generation is increasingly used for financial question answering over long regulatory filings, yet reliability depends on retrieving the exact context needed to justify answers in high stakes settings. We study a…

Computation and Language · Computer Science 2026-02-23 Amine Kobeissi , Philippe Langlais

Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

Computation and Language · Computer Science 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Multi-step LLM pipelines can solve complex tasks, but jointly optimizing prompts across steps remains challenging due to missing step-level supervision and inter-step dependency. We propose ADOPT, an adaptive dependency-guided joint prompt…

Computation and Language · Computer Science 2026-04-09 Minjun Zhao , Xinyu Zhang , Shuai Zhang , Deyang Li , Ruifeng Shi

Current general-purpose large language models (LLMs) commonly exhibit knowledge hallucination and insufficient domain-specific adaptability in domain-specific tasks, limiting their effectiveness in specialized question answering scenarios.…

Information Retrieval · Computer Science 2025-09-16 Mengzheng Yang , Yanfei Ren , David Osei Opoku , Ruochang Li , Peng Ren , Chunxiao Xing

Medical large vision-language Models (Med-LVLMs) have shown promise in clinical applications but suffer from factual inaccuracies and unreliable outputs, posing risks in real-world diagnostics. While RAG has emerged as a potential solution,…

Computation and Language · Computer Science 2026-05-05 Zhe Chen , Yusheng Liao , Zhiyuan Zhu , Haolin Li , Hongcheng Liu , Yanfeng Wang , Yu Wang

Retrieval-Augmented Generation (RAG) enables Large Language Models (LLMs) to extend their existing knowledge by dynamically incorporating external information. However, practical deployment is fundamentally constrained by the LLM's finite…

Information Retrieval · Computer Science 2026-03-24 Jiarui Guo , Yuemeng Xu , Zongwei Lv , Yangyujia Wang , Xiaolin Wang , Kan Liu , Tao Lan , Lin Qu , Tong Yang

Retrieval-Augmented Generation (RAG) enhances the factual grounding of Large Language Models by conditioning their outputs on external documents. However, standard embedding-based retrievers treat naturally structured corpora, such as…

Information Retrieval · Computer Science 2026-05-11 Giorgia Bolognesi , Claudio Estatico , Ulderico Fugacci , Isabella Mastroianni , Claudio Muselli , Luca Oneto

Multimodal Retrieval-Augmented Generation (RAG) has emerged as an effective paradigm for enhancing Large Language Models (LLMs) with external knowledge. However, existing multimodal RAG systems predominantly rely on coarse-grained…

Information Retrieval · Computer Science 2026-05-25 Yifan Zhu , Yu Mi , Yue Lu , Yanchu Guan , Zhixuan Chu

Case-based reasoning (CBR) is an experience-based approach to problem solving, where a repository of solved cases is adapted to solve new cases. Recent research shows that Large Language Models (LLMs) with Retrieval-Augmented Generation…

Artificial Intelligence · Computer Science 2025-01-10 Ofir Marom

The rapid expansion of space activities has led to an unprecedented accumulation of technical documentation, operational guidelines, and scientific literature, creating challenges for timely decision-making in space operations. Effective…

Information Retrieval · Computer Science 2026-05-28 Ruben Belo , Marta Guimarães , Cláudia Soares

VLM-based OCR models have become the de facto choice for document parsing, as they can accurately extract page-level elements (e.g., paragraphs within individual pages) together with their bounding boxes and textual content. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Bangrui Xu , Ziyang Miao , Xuanhe Zhou , Yiming Lin , Zirui Tang , Xiaomeng Zhao , Fan Wu , Cheng Tan , Fan Wu , Bin Wang , Conghui He

Large Language Model (LLM)-based passage expansion has shown promise for enhancing first-stage retrieval, but often underperforms with dense retrievers due to semantic drift and misalignment with their pretrained semantic space. Beyond…

Information Retrieval · Computer Science 2025-08-26 Huanwei Xu , Lin Xu , Liang Yuan