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Large language models (LLMs) have achieved impressive performance on code generation. Although prior studies enhanced LLMs with prompting techniques and code refinement, they still struggle with complex programming problems due to rigid…

Software Engineering · Computer Science 2024-09-10 Huan Zhang , Wei Cheng , Yuhan Wu , Wei Hu

Writing code requires significant time and effort in software development. To automate this process, researchers have made substantial progress for code generation. Recently, large language models (LLMs) have demonstrated remarkable…

Software Engineering · Computer Science 2025-11-19 Jia Li , Xianjie Shi , Kechi Zhang , Ge Li , Zhi Jin , Lei Li , Huangzhao Zhang , Jia Li , Fang Liu , Yuwei Zhang , Zhengwei Tao , Yihong Dong , Yuqi Zhu , Chongyang Tao

Large language models (LLMs) have achieved strong performance in code generation, but most methods rely on autoregressive decoding without global planning, often leading to locally coherent yet globally suboptimal solutions (e.g., failing…

Artificial Intelligence · Computer Science 2026-05-26 Zhihao Dou , Qinjian Zhao , Zhongwei Wan , Xiaoyu Xia , Sumon Biswas

Ensuring truthfulness in large language models (LLMs) remains a critical challenge for reliable text generation. While supervised fine-tuning and reinforcement learning with human feedback have shown promise, they require a substantial…

Machine Learning · Computer Science 2026-03-17 Manh Nguyen , Sunil Gupta , Hung Le

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

Code generation refers to automatically producing executable programs from user requirements. Recently, researchers have explored approaches to enhance the correctness of generated code with advanced large language models. Although…

Software Engineering · Computer Science 2026-04-20 Jia Li , Ruiqi Bai , Yangkang Luo , Yiran Zhang , Wentao Yang , Zeyu Sun , Tiankuo Zhao , Dongming Jin , Lei Li , Zhi Jin

Code completion, which aims to predict the following code token(s) according to the code context, can improve the productivity of software development. Recent work has proved that statistical language modeling with transformers can greatly…

Software Engineering · Computer Science 2022-03-16 Shuai Lu , Nan Duan , Hojae Han , Daya Guo , Seung-won Hwang , Alexey Svyatkovskiy

The rapid evolution of software libraries creates a significant challenge for Large Language Models (LLMs), whose static parametric knowledge often becomes stale post-training. While retrieval-augmented generation (RAG) is commonly used to…

Software Engineering · Computer Science 2026-04-13 Ahmed Nusayer Ashik , Shaowei Wang , Tse-Hsun Chen , Muhammad Asaduzzaman , Yuan Tian

The efficient processing of long context poses a serious challenge for large language models (LLMs). Recently, retrieval-augmented generation (RAG) has emerged as a promising strategy for this problem, as it enables LLMs to make selective…

Computation and Language · Computer Science 2025-02-18 Kun Luo , Zheng Liu , Peitian Zhang , Hongjin Qian , Jun Zhao , Kang Liu

Large language models (LLMs) like GitHub Copilot and ChatGPT have emerged as powerful tools for code generation, significantly enhancing productivity and accelerating software development. However, existing benchmarks primarily focus on…

Software Engineering · Computer Science 2024-09-27 Yixi Wu , Pengfei He , Zehao Wang , Shaowei Wang , Yuan Tian , Tse-Hsun Chen

Repository-level code generation aims to generate code within the context of a specified repository. Existing approaches typically employ retrieval-augmented generation (RAG) techniques to provide LLMs with relevant contextual information…

Software Engineering · Computer Science 2025-11-04 Yang Liu , Li Zhang , Fang Liu , Zhuohang Wang , Donglin Wei , Zhishuo Yang , Kechi Zhang , Jia Li , Lin Shi

Current search techniques are limited to standard RAG query-document applications. In this paper, we propose a novel technique to expand the code and index for predicting the required APIs, directly enabling high-quality, end-to-end code…

Software Engineering · Computer Science 2025-10-01 Esakkivel Esakkiraja , Denis Akhiyarov , Aditya Shanmugham , Chitra Ganapathy

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

Thanks to unprecedented language understanding and generation capabilities of large language model (LLM), Retrieval-augmented Code Generation (RaCG) has recently been widely utilized among software developers. While this has increased…

Computation and Language · Computer Science 2024-11-26 Geonmin Kim , Jaeyeon Kim , Hancheol Park , Wooksu Shin , Tae-Ho Kim

Retrieval-augmented generation (RAG) techniques have emerged as a promising solution to enhance the reliability of large language models (LLMs) by addressing issues like hallucinations, outdated knowledge, and domain adaptation. In…

Computation and Language · Computer Science 2025-01-28 Weihang Su , Yichen Tang , Qingyao Ai , Junxi Yan , Changyue Wang , Hongning Wang , Ziyi Ye , Yujia Zhou , Yiqun Liu

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

While Retrieval-Augmented Generation (RAG) systems enhance Large Language Models (LLMs) by incorporating external knowledge, they still face persistent challenges in retrieval inefficiency and the inability of LLMs to filter out irrelevant…

Computation and Language · Computer Science 2025-02-13 Ruobing Yao , Yifei Zhang , Shuang Song , Yuhua Liu , Neng Gao , Chenyang Tu

The performance of repository-level code completion depends upon the effective leverage of both general and repository-specific knowledge. Despite the impressive capability of code LLMs in general code completion tasks, they often exhibit…

Software Engineering · Computer Science 2024-09-16 Wei Liu , Ailun Yu , Daoguang Zan , Bo Shen , Wei Zhang , Haiyan Zhao , Zhi Jin , Qianxiang Wang

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by incorporating external documents at inference time, enabling up-to-date knowledge access without costly retraining. However, conventional RAG methods retrieve…

Computation and Language · Computer Science 2025-07-08 Ting-Wen Ko , Jyun-Yu Jiang , Pu-Jen Cheng

Large Language Models (LLMs) exhibit remarkable code generation capabilities but falter when adapting to frequent updates in external library APIs. This critical limitation, stemming from reliance on outdated API knowledge from their…

Computation and Language · Computer Science 2025-11-25 Haoze Wu , Yunzhi Yao , Wenhao Yu , Ningyu Zhang