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ESEC/FSE 2022
Mon 14 - Fri 18 November 2022 Singapore
Mon 14 Nov 2022 15:08 - 15:15 at SRC LT 51 - Community Chair(s): Dirk Riehle

Due to the emergence of large-scale codebases, such as GitHub and Gitee, searching and reusing existing code can help developers substantially improve software development productivity. Over the years, many code search tools have been developed. Early tools leveraged the information retrieval (IR) technique to perform an efficient code search for a frequently changed large-scale codebase. However, the search accuracy was low due to the semantic mismatch between query and code. In the recent years, many tools leveraged Deep Learning (DL) technique to address this issue. But the DL-based tools are slow and the search accuracy is unstable.

In this paper, we presented an IR-based tool CodeMatcher, which inherits the advantages of the DL-based tool in query semantics matching. Generally, CodeMatcher builds indexing for a large-scale codebase at first to accelerate the search response time. For a given search query, it addresses irrelevant and noisy words in the query, then retrieves candidate code from the indexed codebase via iterative fuzzy search, and finally reranks the candidates based on two designed measures of semantic matching between query and candidates. We implemented CodeMatcher as a search engine website. To verify the effectiveness of our tool, we evaluated CodeMatcher on 41k+ open-source Java repositories. Experimental results showed that CodeMatcher can achieve an industrial-level response time (0.3s) with a common server with an Intel-i7 CPU. On the search accuracy, CodeMatcher significantly outperforms three state-of-the-art tools (DeepCS, UNIF, and CodeHow) and two online search engines (GitHub search and Google search).

Mon 14 Nov

Displayed time zone: Beijing, Chongqing, Hong Kong, Urumqi change

14:00 - 15:30
CommunityResearch Papers / Ideas, Visions and Reflections / Demonstrations / Industry Paper at SRC LT 51
Chair(s): Dirk Riehle University of Bavaria, Erlangen
14:00
15m
Talk
In War and Peace: The Impact of World Politics on Software Ecosystems
Ideas, Visions and Reflections
Raula Gaikovina Kula Nara Institute of Science and Technology, Christoph Treude University of Melbourne
DOI
14:15
15m
Talk
A Retrospective Study of One Decade of Artifact Evaluations
Research Papers
Stefan Winter LMU Munich, Christopher Steven Timperley Carnegie Mellon University, Ben Hermann TU Dortmund, J├╝rgen Cito TU Wien, Jonathan Bell Northeastern University, Michael Hilton Carnegie Mellon University, Dirk Beyer LMU Munich
DOI
14:30
15m
Talk
Understanding Skills for OSS Communities on GitHub
Research Papers
Jenny T. Liang University of Washington, Thomas Zimmermann Microsoft Research, Denae Ford Microsoft Research
DOI Pre-print Media Attached
14:45
15m
Talk
Achievement Unlocked: A Case Study on Gamifying DevOps Practices in Industry
Industry Paper
Patrick Ayoup Concordia University, Diego Costa Concordia University, Canada, Emad Shihab Concordia University
DOI
15:00
7m
Talk
iTiger: An Automatic Issue Title Generation Tool
Demonstrations
Ting Zhang Singapore Management University, Ivana Clairine Irsan Singapore Management University, Ferdian Thung Singapore Management University, DongGyun Han Royal Holloway, University of London, David Lo Singapore Management University, Lingxiao Jiang Singapore Management University
15:08
7m
Talk
CodeMatcher: A Tool for Large-Scale Code Search Based on Query Semantics Matching
Demonstrations
Chao Liu Chongqing University, Xuanlin Bao Chongqing University, Xin Xia Huawei, Meng Yan Chongqing University, David Lo Singapore Management University, Ting Zhang Singapore Management University
15:15
15m
Talk
Generating Realistic Vulnerabilities via Neural Code Editing: An Empirical Study
Research Papers
Yu Nong Washington State University, Yuzhe Ou University of Texas at Dallas, Michael Pradel University of Stuttgart, Feng Chen University of Texas at Dallas, Haipeng Cai Washington State University
DOI Pre-print