Dr. Yang Geng is now an assistant researcher at the School of Architecture, Tsinghua University. He received his bachelor's and doctoral degrees from Tsinghua University in 2015 and 2020, respectively. His research focuses on intelligent sensing and control of building energy and indoor environment. He has published more than 30 SCI papers, with over 1500 citations in Web of Science Core Collection, and 4 of his papers have been selected as ESI highly cited papers. He has obtained 5 authorized invention patents and participated in the compilation of 2 standards. He is the Young Editorial Board Member of Building Simulation and Architectural Intelligence, and a scientific editor of Building Energy Efficiency. He has received the First Prize of the Huaxia Construction Science and Technology Award, the First Prize of the China Real Estate Association Science and Technology Award, the First Prize of Beijing Science and Technology Award, the Outstanding Doctoral Dissertation of Tsinghua University, and the Excellent Mentor of Tsinghua University's Carbon Neutrality Practice Project.

• ​Introduction.- Data collection methodology and database.- Macroscopic analysis of operating performances of green office buildings.- Macroscopic correlation between IEQ and energy consumption.- Typical building performance analysis based on statistical regression.- Typical building performance diagnosis based on data mining approach.- Conclusion.

Dr. Yang Geng is now an assistant researcher at the School of Architecture, Tsinghua University. He received his bachelor's and doctoral degrees from Tsinghua University in 2015 and 2020, respectively. His research focuses on intelligent sensing and control of building energy and indoor environment. He has published more than 30 SCI papers, with over 1500 citations in Web of Science Core Collection, and 4 of his papers have been selected as ESI highly cited papers. He has obtained 5 authorized invention patents and participated in the compilation of 2 standards. He is the Young Editorial Board Member of Building Simulation and Architectural Intelligence, and a scientific editor of Building Energy Efficiency. He has received the First Prize of the Huaxia Construction Science and Technology Award, the First Prize of the China Real Estate Association Science and Technology Award, the First Prize of Beijing Science and Technology Award, the Outstanding Doctoral Dissertation of Tsinghua University, and the Excellent Mentor of Tsinghua University's Carbon Neutrality Practice Project.

• ​Introduction.- Data collection methodology and database.- Macroscopic analysis of operating performances of green office buildings.- Macroscopic correlation between IEQ and energy consumption.- Typical building performance analysis based on statistical regression.- Typical building performance diagnosis based on data mining approach.- Conclusion.