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Retrieval-Augmented Generation (RAG) systems for biomedical literature are typically evaluated using ranking metrics like Mean Reciprocal Rank (MRR), which measure how well the system identifies the single most relevant chunk. We argue that…

Artificial Intelligence · Computer Science 2026-03-25 Pouria Mortezaagha , Arya Rahgozar

Retrieval-Augmented Generation (RAG) couples a retriever with a large language model (LLM) to ground generated responses in external evidence. While this framework enhances factuality and domain adaptability, it faces a key bottleneck:…

Information Retrieval · Computer Science 2026-01-08 Sherine George

The paper presents a methodology for uncovering knowledge gaps on the internet using the Retrieval Augmented Generation (RAG) model. By simulating user search behaviour, the RAG system identifies and addresses gaps in information retrieval…

Information Retrieval · Computer Science 2023-12-14 Joan Figuerola Hurtado

Recent advancements in Large Language Models (LLMs) have transformed Natural Language Processing (NLP), enabling complex information retrieval and generation tasks. Retrieval-Augmented Generation (RAG) has emerged as a key innovation,…

Information Retrieval · Computer Science 2026-02-27 Teri Rumble , Zbyněk Gazdík , Javad Zarrin , Jagdeep Ahluwalia

Retrieval-Augmented Generation (RAG) improves reliability of large language models by incorporating external knowledge, but the retrieval process can introduce bias that propagates to generated outputs. This issue is particularly…

Databases · Computer Science 2026-05-18 Yingqi Zhao , Vasilis Efthymiou , Jyrki Nummenmaa , Kostas Stefanidis

Text embedding models serve as a fundamental component in real-world search applications. By mapping queries and documents into a shared embedding space, they deliver competitive retrieval performance with high efficiency. However, their…

Computation and Language · Computer Science 2025-11-03 Qi Liu , Yanzhao Zhang , Mingxin Li , Dingkun Long , Pengjun Xie , Jiaxin Mao

Recent advances in self-supervised learning and neural network scaling have enabled the creation of large models, known as foundation models, which can be easily adapted to a wide range of downstream tasks. The current paradigm for…

Machine Learning · Computer Science 2024-01-09 Brandon Duderstadt , Hayden S. Helm , Carey E. Priebe

Retrieval-augmented generation (RAG) is a powerful method for enhancing natural language generation by integrating external knowledge into a model's output. While prior work has demonstrated the importance of improving knowledge retrieval…

Computation and Language · Computer Science 2025-09-03 Xiangci Li , Jessica Ouyang

The rapid growth of medical knowledge and increasing complexity of clinical practice pose challenges. In this context, large language models (LLMs) have demonstrated value; however, inherent limitations remain. Retrieval-augmented…

Retrieval Augmented Generation (RAG) has advanced software engineering tasks but remains underexplored in unit test generation. To bridge this gap, we investigate the efficacy of RAG-based unit test generation for machine learning (ML/DL)…

Software Engineering · Computer Science 2025-10-20 Jiho Shin , Nima Shiri Harzevili , Reem Aleithan , Hadi Hemmati , Song Wang

Large language models (LLMs) excel in question-answering (QA) tasks, and retrieval-augmented generation (RAG) enhances their precision by incorporating external evidence from diverse sources like web pages, databases, and knowledge graphs.…

Information Retrieval · Computer Science 2025-04-10 Yikuan Xia , Jiazun Chen , Yirui Zhan , Suifeng Zhao , Weipeng Jiang , Chaorui Zhang , Wei Han , Bo Bai , Jun Gao

Medical Question Answering systems based on Retrieval Augmented Generation is promising for clinical decision support because they can integrate external knowledge, thus reducing inaccuracies inherent in standalone large language models…

Computation and Language · Computer Science 2025-03-28 Yuelyu Ji , Hang Zhang , Yanshan Wang

Large language models (LLMs) have demonstrated strong capabilities in medical question answering; however, purely parametric models often suffer from knowledge gaps and limited factual grounding. Retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2026-04-09 Nusrat Sultana , Abdullah Muhammad Moosa , Kazi Afzalur Rahman , Sajal Chandra Banik

Biomedical semantic question answering rooted in information retrieval can play a crucial role in keeping up to date with vast, rapidly evolving and ever-growing biomedical literature. A robust system can help researchers, healthcare…

Information Retrieval · Computer Science 2025-07-09 Shashank Verma , Fengyi Jiang , Xiangning Xue

While large language models (LLMs) have achieved state-of-the-art performance on a wide range of medical question answering (QA) tasks, they still face challenges with hallucinations and outdated knowledge. Retrieval-augmented generation…

Computation and Language · Computer Science 2024-02-26 Guangzhi Xiong , Qiao Jin , Zhiyong Lu , Aidong Zhang

Retrieval-Augmented Generation (RAG) systems are essential to contemporary AI applications, allowing large language models to obtain external knowledge via vector similarity search. Nevertheless, these systems encounter a significant…

Cryptography and Security · Computer Science 2026-03-12 Idan Habler , Vineeth Sai Narajala , Stav Koren , Amy Chang , Tiffany Saade

Traditional multimodal retrieval systems rely primarily on bi-encoder architectures, where performance is closely tied to embedding dimensionality. Recent work, Think-Then-Embed (TTE), shows that incorporating multimodal reasoning to elicit…

Recently, Retrieval Augmented Generation (RAG) has shifted focus to multi-retrieval approaches to tackle complex tasks such as multi-hop question answering. However, these systems struggle to decide when to stop searching once enough…

Information Retrieval · Computer Science 2026-04-23 Gabriel Iturra-Bocaz , Petra Galuscakova

Generative AI (GenAI) is expected to play a pivotal role in enabling autonomous optimization in future wireless networks. Within the ORAN architecture, Large Language Models (LLMs) can be specialized to generate xApps and rApps by…

Artificial Intelligence · Computer Science 2025-08-21 Sarat Ahmad , Zeinab Nezami , Maryam Hafeez , Syed Ali Raza Zaidi

Document retrieval techniques are essential for developing large-scale information systems. The common approach involves using a bi-encoder to compute the semantic similarity between a query and documents. However, the scalar similarity…

Information Retrieval · Computer Science 2025-06-02 Haoyu Liu , Shaohan Huang , Jianfeng Liu , Yuefeng Zhan , Hao Sun , Weiwei Deng , Feng Sun , Furu Wei , Qi Zhang