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We often observe a phenomenon that stochastic characteristics of the software failure-occurrence time or software failure-occurrence time-interval changes notably in an actual testing-phase of a software development process. The testing-time when such phenomenon is observed is called change-point. It is said that the effect of change-point on the software reliability growth process influences accuracy...
Hierarchical menus are widely used as a standard user interface in modern applications that use GUIs. The performance of the menu depends on many factors: structure, layout, colors and so on. There has been extensive research on novel menus, but there has been little work on improving performance by optimizing the menupsilas structure. This paper proposes algorithms based on the genetic algorithm...
Improvement of localization technique for wireless sensor nodes is an important challenge to realize free applications of wireless sensor networks. Effective utilization of range data is necessary because constraints on their hardware resources are very hard and specific on their situations. Utilization of wireless connection strengths (WCS) is efficient strategy; however, localization performances...
The authors have studied a linear pulse motor-driven artificial heart (LAH-S91) with left and right blood pumps, with the goal of implantation and use. The requirements on the LAH of small size and high-thrust actuators pose challenging problems for the evaluation method. The results of performance tests of the LAH-S91 are: 1). Driving characteristics of the LAH-S91 were calculated using a cardiovascular...
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