Affiliations: Department of Information Systems Engineering, Osaka
Sangyo University, 3-1-1 Nakagaito, Daito, Osaka 574-8530, Japan. E-mail:
[email protected] | Department of Information Systems Engineering, Osaka
Sangyo University, 3-1-1 Nakagaito, Daito, Osaka 574-8530, Japan. E-mail:
[email protected]