Exploring the Potential of ChatGPT in Automated Code Refinement: An Empirical Study

• URL: http://arxiv.org/abs/2309.08221v1
• Date: Fri, 15 Sep 2023 07:41:33 GMT
• Title: Exploring the Potential of ChatGPT in Automated Code Refinement: An Empirical Study
• Authors: Qi Guo (Tianjin University), Junming Cao (Fudan University), Xiaofei Xie (Singapore Management University), Shangqing Liu (Nanyang Technological University), Xiaohong Li (Tianjin University), Bihuan Chen (Fudan University), Xin Peng (Fudan University)
• Abstract summary: ChatGPT, a cutting-edge language model, has demonstrated impressive performance in various natural language processing tasks. We conduct the first empirical study to understand the capabilities of ChatGPT in code review tasks. Our results show that ChatGPT achieves higher EM and BLEU scores of 22.78 and 76.44 respectively, while the state-of-the-art method achieves only 15.50 and 62.88 on a high-quality code review dataset.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Code review is an essential activity for ensuring the quality and maintainability of software projects. However, it is a time-consuming and often error-prone task that can significantly impact the development process. Recently, ChatGPT, a cutting-edge language model, has demonstrated impressive performance in various natural language processing tasks, suggesting its potential to automate code review processes. However, it is still unclear how well ChatGPT performs in code review tasks. To fill this gap, in this paper, we conduct the first empirical study to understand the capabilities of ChatGPT in code review tasks, specifically focusing on automated code refinement based on given code reviews. To conduct the study, we select the existing benchmark CodeReview and construct a new code review dataset with high quality. We use CodeReviewer, a state-of-the-art code review tool, as a baseline for comparison with ChatGPT. Our results show that ChatGPT outperforms CodeReviewer in code refinement tasks. Specifically, our results show that ChatGPT achieves higher EM and BLEU scores of 22.78 and 76.44 respectively, while the state-of-the-art method achieves only 15.50 and 62.88 on a high-quality code review dataset. We further identify the root causes for ChatGPT's underperformance and propose several strategies to mitigate these challenges. Our study provides insights into the potential of ChatGPT in automating the code review process, and highlights the potential research directions.

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