1. Ph.D. Student, Institute for Robotics and Intelligent Machines, Georgia Institute of Technology, 777 Atlanta Dr. N.W., Atlanta, GA 30332-0355.
2. Postdoctoral Associate, Rinker School of Construction Management, Univ. of Florida, Gainesville, FL 32611.
3. Associate Professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlanta Dr. N.W., Atlanta, GA 30332-0355.