of;
Science;
and;
Technology,;
Phranakhon;
Si;
Ayutthaya;
Rajabhat;
University,;
Phranakhon;
Si;
Ayutthaya;
13000,;
Thailand;
of;
Engineering,;
King;
Mongkut's;
Institute;
of;
Technology;
Ladkrabang;
(KMITL),;
Bangkok;
10520,;
Thailand;
School;
of;
Information;
Science;
and;
Technology,;
Hokkaido;
University,;
Sapporo;
060-0814,;
Japan;