CoRA: Decomposing and Describing Tangled Code Changes for Reviewer
Code review is an important mechanism for code quality assurance both in open source software and industrial software. Reviewers usually suffer from numerous, tangled and loosely related code changes are bundled in a single commit, which makes code review very difficult. In this paper, we propose CoRA (Code Review Assistant), an automatic approach to decompose a tangled commit into different parts and generate concise descriptions for reviewers. More specifically, CoRA can decompose a commit into independent parts (e.g., bug fixing, new feature adding, or refactoring) by code dependency analysis and tree-based similar-code detection, then identify the most important code changes in each part based on PageRank algorithm and heuristic rules. As a result, CoRA can generate a concise description for each part of the commit. We evaluate our approach in 7 open source software projects and 50 code commits. The results indicate that CoRA can improve the accuracy of decomposing code changes by 6.3% over the state-of-art practice. At the same time, CoRA can identify the important part from the fine-grained code changes with a mean average precision (MAP) of 87.7%. We also conduct a human study with 8 participants to evaluate the performance and usefulness of CoRA, the user feedback indicates that CoRA can effectively help reviewers
Thu 14 NovDisplayed time zone: Tijuana, Baja California change
16:00 - 17:40 | Untangling and MergingResearch Papers at Cortez 2&3 Chair(s): Iftekhar Ahmed University of California at Irvine, USA | ||
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16:40 20mTalk | CLCDSA: Cross Language Code Clone Detection using Syntactical Features and API Documentation Research Papers Kawser Nafi University of Saskatchewan, Tonny Shekha Kar University of Saskatchewan, Canada, Banani Roy University of Saskatchewan, Chanchal K. Roy University of Saskatchewan, Kevin Schneider University of Saskatchewan | ||
17:00 20mTalk | B2SFinder: Detecting Open-Source Software Reuse in COTS Software Research Papers Muyue Feng Institute of Information Engineering, Chinese Academy of Sciences, Zimu Yuan Institute of Information Engineering, Chinese Academy of Sciences, Feng Li Institute of Computing Technology at Chinese Academy of Sciences, China, Gu Ban Institute of Information Engineering, Chinese Academy of Sciences, Yang Xiao Institute of Information Engineering, Chinese Academy of Sciences & School of Cyber Security, University of Chinese Academy of Sciences, Shiyang Wang Institute of Information Engineering, Chinese Academy of Sciences, Qian Tang Institute of Information Engineering, Chinese Academy of Sciences, He Su Institute of Information Engineering, Chinese Academy of Sciences, Chendong Yu University of Chinese Academy of Sciences, Jiahuan Xu Institute of Information Engineering, Chinese Academy of Sciences, Aihua Piao Institute of Information Engineering, Chinese Academy of Sciences, Jingling Xue UNSW Sydney, Wei Huo Institute of Information Engineering, Chinese Academy of Sciences | ||
17:20 20mTalk | CoRA: Decomposing and Describing Tangled Code Changes for Reviewer Research Papers Min Wang Peking University, Zeqi Lin Microsoft Research, China, Yanzhen Zou Peking University, Bing Xie Peking University | ||