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Browsing by Author "Kamei, Yasutaka"

Browsing by Author "Kamei, Yasutaka"

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  • Monden, Akito; Keung, Jacky; Morisaki, Shuji; Kamei, Yasutaka; Matsumoto, Ken-Ichi (IEEE, 2012)
    Background: Association rules are more comprehensive and understandable than fault-prone module predictors (such as logistic regression model, random forest and support vector machine). One of the challenges is that there ...
  • Tsunoda, Masateru; Fushida, Kyohei; Kamei, Yasutaka; Nakamura, Masahide; Mitsui, Kohei; Goto, Keita; Matsumoto, Kenichi (IEEE, 2013)
    In past research, we proposed an authentication method that combines actions with spatiotemporal information such as location, time, and distance. With the method, a user succeeds in authentication when he/she performs ...
  • Morisaki, Shuji; Kamei, Yasutaka; Matsumoto, Kenichi (日本ソフトウェア科学会, 2011-08-26)
    This paper describes an investigation on the impact of selecting a specific defect type in software inspection. We conducted a controlled experiment concerning the effect of selecting a defect type on software inspection. ...
  • Kamei, Yasutaka; Matsumoto, Shinsuke; Maeshima, Hirotaka; Onishi, Yoji; Ohira, Masao; Matsumoto, Ken-ichi (Springer US, 2008)
    Coordination is one of the keys for the success of open source software (OSS) communities because geographically distributed members need to collaborate on their work using communication tools (e.g., mailing lists, bulletin ...
  • Matsumoto, Shinsuke; Kamei, Yasutaka; Monden, Akito; Matsumoto, Ken-ichi (IEEE, 2007)
    In this paper, we experimentally evaluated the effect of outlier detection methods to improve the prediction performance of fault-proneness models. Detected outliers were removed from a fit dataset before building a model. ...
  • Ihara, Akinori; Kamei, Yasutaka; Ohira, Masao; Hassan, Ahmed E.; Ubayashi, Naoyasu; Matsumoto, Ken-ichi (IEEE, 2014)
    There exists two types of developers in Open Source Software (OSS) projects: 1) Committers who have permission to commit edited source code to the Version Control System (VCS), 2) Developers who contribute source code but ...
  • Shihab, Emad; Ihara, Akinori; Kamei, Yasutaka; Ibrahim, Walid M.; Ohira, Masao; Adams, Bram; Hassan, Ahmed E.; Matsumoto, Ken-ichi (IEEE, 2010)
    Bug fixing accounts for a large amount of the software maintenance resources. Generally, bugs are reported, fixed, verified and closed. However, in some cases bugs have to be re-opened. Re-opened bugs increase maintenance ...
  • Shihab, Emad; Ihara, Akinori; Kamei, Yasutaka; Ibrahim, Walid M.; Ohira, Masao; Adams, Bram; Hassan, Ahmed E.; Matsumoto, Ken-ichi (Springer, 2012-09-20)
    Bug fixing accounts for a large amount of the software maintenance resources. Generally, bugs are reported, fixed, verified and closed. However, in some cases bugs have to be re-opened. Re-opened bugs increase maintenance ...
  • Kamei, Yasutaka; Monden, Akito; Matsumoto, Shinsuke; Kakimoto, Takeshi; Matsumoto, Ken-ichi (IEEE, 2007)
    The goal of this paper is to improve the prediction performance of fault-prone module prediction models (fault-proneness models) by employing over/under sampling methods, which are preprocessing procedures for a fit dataset. ...
  • Kakimoto, Takeshi; Monden, Akito; Kamei, Yasutaka; Tamada, Haruaki; Tsunoda, Masateru; Matsumoto, Ken-ichi (ACM, 2006-05-22)
    Software birthmarks are unique and native characteristics of every software component. Two components having similar birthmarks indicate that they are similar in functionality, structure and im-plementation. Questions ...