SHENG-WEN WANG1, CHUNG-YUAN HUANG2,* AND CHUEN-TSAI SUN1
1Department of Computer Science
National Chiao Tung University
Hsinchu, 300 Taiwan
E-mail: sww0915@gmail.com; ctsun@cs.nctu.edu.tw
2,*Department of Computer Science and Information Engineering
Chang Gung University
Taoyuan, 333 Taiwan
E-mail: gscott@mail.cgu.edu.tw