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(JSCE), Vol. 68, No. 2, pp. 62-79 (in Japanese).Nam, L. T., Kaito, K., Kobayashi,
K., Okizuka, R. (2012). “A Posson hidden Markov model for pavement deterioration prediction.”
J. of Japan Society of Civil Engineers (JSCE), Vol. 68, No. 2, pp. 62-79 (in Japanese).