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While Retrieval-Augmented Generation (RAG) is increasingly adopted to ground Large Language Models (LLMs) in software artifacts, the optimal configuration of its components remains an open question for software engineering (SE) tasks. The…

Software Engineering · Computer Science 2026-05-15 Qiang Ke , Yanjie Zhao , Hongjin Leng , Shengming Zhao , Haoyu Wang

Retrieval Augmented Generation (RAG) systems are a widespread application of Large Language Models (LLMs) in the industry. While many tools exist empowering developers to build their own systems, measuring their performance locally, with…

Information Retrieval · Computer Science 2024-12-02 Rafael Teixeira de Lima , Shubham Gupta , Cesar Berrospi , Lokesh Mishra , Michele Dolfi , Peter Staar , Panagiotis Vagenas

Recent advancements in Retrieval-Augmented Generation (RAG) have revolutionized natural language processing by integrating Large Language Models (LLMs) with external information retrieval, enabling accurate, up-to-date, and verifiable text…

Computation and Language · Computer Science 2025-04-22 Aoran Gan , Hao Yu , Kai Zhang , Qi Liu , Wenyu Yan , Zhenya Huang , Shiwei Tong , Guoping Hu

Retrieval-Augmented Generation (RAG) merges retrieval methods with deep learning advancements to address the static limitations of large language models (LLMs) by enabling the dynamic integration of up-to-date external information. This…

Information Retrieval · Computer Science 2026-05-19 Yizheng Huang , Jimmy Huang

This study presents a method for implementing generative AI services by utilizing the Large Language Models (LLM) application architecture. With recent advancements in generative AI technology, LLMs have gained prominence across various…

Artificial Intelligence · Computer Science 2024-01-03 Cheonsu Jeong

We proposed an end-to-end system design towards utilizing Retrieval Augmented Generation (RAG) to improve the factual accuracy of Large Language Models (LLMs) for domain-specific and time-sensitive queries related to private…

Computation and Language · Computer Science 2024-03-18 Jiarui Li , Ye Yuan , Zehua Zhang

Large language models (LLMs) in biomedicine face a fundamental conflict between static parameter knowledge and the dynamic nature of clinical evidence. Retrieval-Augmented Generation (RAG) addresses this by grounding generation in external…

Other Quantitative Biology · Quantitative Biology 2025-12-19 Jiawei He , Boya Zhang , Hossein Rouhizadeh , Yingjian Chen , Rui Yang , Jin Lu , Xudong Chen , Nan Liu , Douglas Teodoro

Recent advances in large language models (LLMs) have significantly improved automated code generation. While existing approaches have achieved strong performance at the function and file levels, real-world software engineering requires…

Software Engineering · Computer Science 2026-05-21 Yicheng Tao , Yuante Li , Yao Qin , Yepang Liu

This article provides a comprehensive systematic literature review of academic studies, industrial applications, and real-world deployments from 2018 to 2025, providing a practical guide and detailed overview of modern Retrieval-Augmented…

Information Retrieval · Computer Science 2026-01-12 Dean Wampler , Dave Nielson , Alireza Seddighi

Requirements Engineering (RE) plays a pivotal role in software development, encompassing tasks such as requirements elicitation, analysis, specification, and change management. Despite its critical importance, RE faces challenges including…

Software Engineering · Computer Science 2024-09-04 Malik Abdul Sami , Muhammad Waseem , Zheying Zhang , Zeeshan Rasheed , Kari Systä , Pekka Abrahamsson

Accuracy and safety are paramount in Offshore Wind (OSW) maintenance, yet conventional Large Language Models (LLMs) often fail when confronted with highly specialised or unexpected scenarios. We introduce RAGuard, an enhanced…

Artificial Intelligence · Computer Science 2025-09-05 Connor Walker , Koorosh Aslansefat , Mohammad Naveed Akram , Yiannis Papadopoulos

Retrieval-Augmented Generation (RAG) offers a promising solution to address various limitations of Large Language Models (LLMs), such as hallucination and difficulties in keeping up with real-time updates. This approach is particularly…

Computation and Language · Computer Science 2024-06-18 Shuting Wang , Jiongnan Liu , Shiren Song , Jiehan Cheng , Yuqi Fu , Peidong Guo , Kun Fang , Yutao Zhu , Zhicheng Dou

Retrieval augmented generation (RAG) has been applied in many scenarios to augment large language models (LLMs) with external documents provided by retrievers. However, a semantic gap exists between LLMs and retrievers due to differences in…

Computation and Language · Computer Science 2024-10-31 Fuda Ye , Shuangyin Li , Yongqi Zhang , Lei Chen

Retrieval-Augmented Generation (RAG) systems are usually defined by the combination of a generator and a retrieval component that extracts textual context from a knowledge base to answer user queries. However, such basic implementations…

Computation and Language · Computer Science 2026-04-21 Pietro Ferrazzi , Milica Cvjeticanin , Alessio Piraccini , Davide Giannuzzi

Large Language Models (LLMs) showcase impressive capabilities but encounter challenges like hallucination, outdated knowledge, and non-transparent, untraceable reasoning processes. Retrieval-Augmented Generation (RAG) has emerged as a…

Computation and Language · Computer Science 2024-03-28 Yunfan Gao , Yun Xiong , Xinyu Gao , Kangxiang Jia , Jinliu Pan , Yuxi Bi , Yi Dai , Jiawei Sun , Meng Wang , Haofen Wang

Implementing Retrieval-Augmented Generation (RAG) systems is inherently complex, requiring deep understanding of data, use cases, and intricate design decisions. Additionally, evaluating these systems presents significant challenges,…

Computation and Language · Computer Science 2024-08-06 Daniel Fleischer , Moshe Berchansky , Moshe Wasserblat , Peter Izsak

Retrieval-Augmented Generation (RAG) has become a standard architectural pattern for incorporating domain-specific knowledge into user-facing chat applications powered by Large Language Models (LLMs). RAG systems are characterized by (1) a…

Computation and Language · Computer Science 2025-01-17 Robert Friel , Masha Belyi , Atindriyo Sanyal

Retrieval Augmented Generation (RAG) complements the knowledge of Large Language Models (LLMs) by leveraging external information to enhance response accuracy for queries. This approach is widely applied in several fields by taking its…

Large language models (LLMs) with retrieval augmented-generation (RAG) have been the optimal choice for scalable generative AI solutions in the recent past. Although RAG implemented with AI agents (agentic-RAG) has been recently…

Artificial Intelligence · Computer Science 2024-11-19 Sohini Roychowdhury , Marko Krema , Anvar Mahammad , Brian Moore , Arijit Mukherjee , Punit Prakashchandra

Retrieval Augmented Generation (RAG) has emerged as a crucial technique for enhancing the accuracy of Large Language Models (LLMs) by incorporating external information. With the advent of LLMs that support increasingly longer context…

Machine Learning · Computer Science 2024-11-07 Quinn Leng , Jacob Portes , Sam Havens , Matei Zaharia , Michael Carbin