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Yutaka HAYASHI
Konan Univ., Faculty of Sci. and Engng.
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Hidetoshi NAKAYASU
Konan Univ., Faculty of Sci. and Engng.
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Kimihiro YAMANAKA
Tokyo Metropolitan Univ., Faculty of System Design
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Tetsuya MIYOSHI
Toyohashi Sozo College, Faculty of Management and Inf. Sci.