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This paper focuses on the local variable names and comments that are major artifacts reflecting the programmer's preference. It conducts an empirical analysis on the usefulness of those artifacts in assessing the software quality from the perspective of change-proneness in Java methods developed in six popular open source software products. The empirical results show: (1) a method having a longer...
Radiation simulations have been widely used in high energy physics, nuclear physics, accelerator physics, medical science, and space science. The simulations generate particle trajectories and physical quantities in detectors, equipment or a human body. Therefore, visualization system has to process and draw complex and huge data in such simulations. We have been developing visualization software...
In recent years, many open source software (OSS) products have become popular and widely used in the information technology (IT) business. To successfully run IT business, it is important to properly understand the OSS development status. Having a proper understanding of development status is necessary to evaluate and predict the product quality. However, the OSS development status is not easy to...
The Virtual Organization (VO) called “PPJ - Particle Physics in Japan” for the accelerator science has been federated among domestic institutes. We have developed a monitoring and diagnostic system over this VO. The system is designed not only for checking site status but also for aiding site administrators by automatically navigating to appropriate documents in their site operation. We will describe...
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