1. Associate Professor of Project Management, Dept. of Construction Engineering, National Taiwan Univ. of Science and Technology, 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan (corresponding author).
2. Assistant Professor of Structural Engineering, Dept. of Construction Engineering, National Taiwan Univ. of Science and Technology, 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan.
3. Ph.D. Candidate, Dept. of Computer Science and Information Engineering, National Taiwan Univ. of Science and Technology, 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan.
4. Doctoral Student, Dept. of Computer Science and Information Engineering, National Taiwan Univ. of Science and Technology, 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan.