activity
20182024
most citedThe impact of feature importance methods on the interpretation of defect classifiers

132 citations · 250 across the 12 of their papers we have counts for

collaborators

12 papers

cs.SE2024

An Empirical Study of Token-based Micro Commits

Masanari Kondo, Daniel M. German, Yasutaka Kamei +2

In software development, developers frequently apply maintenance activities to the source code that change a few lines by a single commit. A good understanding of the characteristi…

cs.SE2024

OSS Myths and Facts

Yukako Iimura, Masanari Kondo, Kazushi Tomoto +3

We have selected six myths about the OSS community and have tested whether they are true or not. The purpose of this report is to identify the lessons that can be learned from the…

cs.SE2024★ 1 cited

Exploring the Effect of Multiple Natural Languages on Code Suggestion Using GitHub Copilot

Kei Koyanagi, Dong Wang, Kotaro Noguchi +4

GitHub Copilot is an AI-enabled tool that automates program synthesis. It has gained significant attention since its launch in 2021. Recent studies have extensively examined Copilo…

cs.SE2023

Repeated Builds During Code Review: An Empirical Study of the OpenStack Community

Rungroj Maipradit, Dong Wang, Patanamon Thongtanunam +3

Code review is a popular practice where developers critique each others' changes. Since automated builds can identify low-level issues (e.g., syntactic errors, regression bugs), it…

cs.SE2023

When Conversations Turn Into Work: A Taxonomy of Converted Discussions and Issues in GitHub

Dong Wang, Masanari Kondo, Yasutaka Kamei +2

Popular and large contemporary open-source projects now embrace a diverse set of documentation for communication channels. Examples include contribution guidelines (i.e., commit me…

cs.SE2023

Understanding the Role of Images on Stack Overflow

Dong Wang, Tao Xiao, Christoph Treude +3

Images are increasingly being shared by software developers in diverse channels including question-and-answer forums like Stack Overflow. Although prior work has pointed out that t…

cs.SE2022★ 65 cited

The Impact of Using Regression Models to Build Defect Classifiers

Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei +1

It is common practice to discretize continuous defect counts into defective and non-defective classes and use them as a target variable when building defect classifiers (discretize…

cs.SE2022★ 30 cited

Impact of Discretization Noise of the Dependent variable on Machine Learning Classifiers in Software Engineering

Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei +1

Researchers usually discretize a continuous dependent variable into two target classes by introducing an artificial discretization threshold (e.g., median). However, such discretiz…

cs.LG2022★ 132 cited

The impact of feature importance methods on the interpretation of defect classifiers

Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei +1

Classifier specific (CS) and classifier agnostic (CA) feature importance methods are widely used (often interchangeably) by prior studies to derive feature importance ranks from a…

cs.SE2020★ 1 cited

A Quantitative Study of Security Bug Fixes of GitHub Repositories

Daito Nakano, Mingyang Yin, Ryosuke Sato +3

Software is prone to bugs and failures. Security bugs are those that expose or share privileged information and access in violation of the software's requirements. Given the seriou…

cs.SE2018★ 17 cited

Towards effective AI-powered agile project management

Hoa Khanh Dam, Truyen Tran, John Grundy +2

The rise of Artificial intelligence (AI) has the potential to significantly transform the practice of project management. Project management has a large socio-technical element wit…

cs.SE2018★ 4 cited

Bridging Semantic Gaps between Natural Languages and APIs with Word Embedding

Xiaochen Li, He Jiang, Yasutaka Kamei +1

Developers increasingly rely on text matching tools to analyze the relation between natural language words and APIs. However, semantic gaps, namely textual mismatches between words…