Affiliation: | a Department of Computer Science and Engineering, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan b Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, 1 University Road, Yenchao, Kaohsiung 824, Taiwan c Department of Information Management, Longcyuan Veterans Hospital, VAC, Executive Yuan, 1 Anping Lane 1 Jhaosheng Road, Pingtung 912, Taiwan |