Ji-Tzay Yang, Jiun-Long Huang, Feng-Jian Wang
and William C. Chu*
Department of Computer Science and Information Engineering
National Chiao Tung University
Hsinchu, 300 Taiwan
E-mail: {jjyang, jlhuang, fjwang}@csie.nctu.edu.tw
*Department of Computer Information Science
TungHai University
Taichung, 400 Taiwan
E-mail: chu@cis.thu.edu.tw