1. National Tsing Hua University,Department of Computer Science,Hsinchu,Taiwan R.O.C.,300044
2. National Tsing Hua University,Institute of Service Science,Hsinchu,Taiwan R.O.C.,300044
3. Taipei Veterans General Hospital,Department of Physical Medicine and Rehabilitation,Taipei,Taiwan R.O.C.,11217
4. National Tsing Hua University,Department of Industrial Engineering and Engineering Management,Hsinchu,Taiwan R.O.C.,300044
5. National Taiwan University of Science and Technology,Department of Electrical Engineering,Taipei,Taiwan R.O.C.,106335