Teiko Arai

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Describes a parallel link manipulator built for application to an underground excavation task. The specifications of both the manipulator and the controller are explained. The kinematics of the manipulator are analyzed to develop a control algorithm. The workspace of the manipulator is analyzed by simulation. The singularity problem for parallel(More)
A reading skill test to diagnose basic language skills is introduced. The test is designed to measure six component skills relevant to reading in comparison with those of state-ofthe-art natural language processing technologies. The results of the first large-scale experiments using the test are reported. Surprisingly, almost half of Japanese junior high(More)
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