Data-driven discovery and probabilistic modelling of physical systems

About Me

I am a Ph.D. student in the Department of Mechanical Engineering at the University of Southern California, is a highly motivated individual with a passion for high-fidelity simulations, uncertainty quantification, and machine learning, especially in high dimensions and rare data scenarios. Currently, I am engaged in research to build probabilistic models for multiscale simulations using tools including polynomial chaos expansion (PCE) and state-of-art machine learning (ML) methods.

Education

2016-2020 Bachelor's Degree in Energy & Power Engineering, Xi'an Jiaotong University, China

2020-present Ph.D. candidate in Mechanical Engineering, University of Southern California, USA

Research interest

Predictive models for rare events

Multi-scale Stochastic Modeling, Conditioning, and Simulation of rare events

Discovering & Modeling Turbulence and Chemistry Interactions in High Speed Reactive Flows

Publications

Z. Gou, X. Tu, S. Lototsky, R. Ghanem. (2023). ”Multi-scale stochastic modeling and uncertainty quantification using the switching diffusion model.” Submitted.

Invited talks and conferences

Hybrid switching diffusion model on multiscale simulation. Zheming Gou, Roger Ghanem. Astani Research Symposium, September 23, 2022.

A data-driven approach of uncertainty quantification on Reynolds stress based on DNS Simulations. Zheming Gou. DATAWroks, April 25-27, 2023. (Outstanding Student Poster Awards)

Multi-scale stochastic simulation of rare events using the switching diffusion model. Zheming Gou, Sergey Lototsky, Roger Ghanem. Engineering Mechanics Institute (EMI) conference, June 7-9, 2023.

Mesoscale logic mediates microscale chatter and scientific discovery. Roger Ghanem, Zheming Gou. Engineering Mechanics Institute (EMI) conference, June 7-9, 2023.

Random building blocks in the mesoscale inform strength and failure predictions. Zheming Gou, Roger Ghanem. ADVANCES IN COMPUTATIONAL MECHANICS (ACM 2023). A Conference Celebrating the 80th Birthday of Thomas J.R. Hughes. With Special Track: Computational Fluid-Structure Interaction: Frontiers in Methods and Applications (CFSI 2023), Oct 22-26, 2023.

News

Congratulations to my advisor Dr. Ghanem for being inducted as a Distinguished Member of ASCE!

Distinguished Membership of the American Society of Civil Engineers (ASCE) is the highest honor ASCE can bestow, and only 12 people can receive this honor every year. Congratulations, Dr. Ghanem! As a team member, I feel honored and proud to have learned so much from you, not only in research but also in life. Your well-deserved recognition is also an inspiration to us all.

I won the Outstanding Student Poster Awards at the DATAWorks conference!

The Defense and Aerospace Test and Analysis (DATA) Workshop is the result of a multi-organization collaboration with the Director of Operational Test & Evaluation (DOT&E) within the Office of the Secretary of Defense, National Aeronautics and Space Administration (NASA), the Institute for Defense Analyses (IDA), and the Section on Statistics in Defense and National Security (SDNS) of the American Statistical Association (ASA). The workshop is strategically designed to strengthen the community by applying rigorous statistical approaches to test design and data analysis in the fields of defense and aerospace.

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