1. Ph.D. Student, Construction Information Technology Lab, Laing O’Rourke Center, Division D, Dept. of Engineering, Univ. of Cambridge, Trumpington St., Cambridge CB2 1PZ, U.K.
2. Research Associate, Centre for Smart Infrastructure and Construction, Dept. of Engineering, Univ. of Cambridge, Trumpington St., Cambridge CB2 1PZ, U.K.
3. Laing O’Rourke Lecturer, Construction Information Technology Lab, Laing O’Rourke Center, Division D, Dept. of Engineering, Univ. of Cambridge, Trumpington St., Cambridge CB2 1PZ, U.K.
4. Associate Professor, School of Electrical and Computer Engineering, Georgia Institute of Technology, TSRB 441/Van Leer 368, Mail Code 0250, Atlanta, GA 30332.