1. Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hong Kong.
2. Research Assistant, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hong Kong.
3. Researcher, Dept. of Land Surveying and Geo-Informatics, Hong Kong Polytechnic Univ., Hong Kong.
4. Associate Professor, Dept. of Land Surveying and Geo-Informatics, Hong Kong Polytechnic Univ., Hong Kong.
5. PhD Candidate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hong Kong.