I am currently a Penn AI Fellow at University of Pennsylvania, working with Prof. Paris Perdikaris and Prof. Nat Trask. My research focuses on developing physics-informed machine learning methods, particularly PINNs and operator learning, and generative models to solve forward and inverse problems across geophysics, fluid dynamics, and beyond. Building on this foundation, I am extending these approaches to Earth, environmental, and material systems, seeking to unify physical modeling and data-driven learning to better understand and forecast coupled processes in the subsurface and engineered systems.

I did my Ph.D. at King Abdullah University of Science and Technology, advised by Prof. Tariq Alkhalifah. I received my Master’s degree from Tongji University, advised by Prof. Yuzhu Liu, and Bachelor’s degree from Jilin university. I also worked as a research intern at Microsoft Research AI4Science and Microsoft Research Asia.

🔥 News

2025.11: 🎉🎉 Our PhysicsCorrect is accepted at AAAI for an Oral presentation!
2025.10: 🎉🎉 Our neuralfwi is published at IEEE TGRS, in which we carefully analyze mechanism responsible for artifacts in operator-learning-based FWI and developed a physics-informed solution!
2025.08: 🎉🎉 Appointment as a Penn AI Fellow!
2025.04: 🎉🎉 Our videodiffco2 is published at JGR: Machine Learning and computation, the first unified probabilistic forecasting and inversion framework for CO2 storage!
2025.03: 🎉🎉 Our neuroseismic is published at GJI, a enhanced operator incorporating seismic knowledge!
2024.10: 🎉🎉 UPenn AIxScience Postdoctoral Fellow!
2024.04: 🎉🎉 Two papers published at Neural Networks, and one paper published at IEEE GRSL!
2024.03: 🎉🎉 PINN using hash encoding is published at JCP, and another paper is published at GP!
2024.02: 🎉🎉 One paper published at IEEE TGRS!
2023.05: 🎉🎉 Receive the KAUST PSE Dean’s award!
2023.04: 🎉🎉 NeuralStagger is accepted at ICML 2023!

📝 Publications

JGR: ML and computation

Diffusion-based subsurface CO2 multiphysics monitoring and forecasting

Xinquan Huang, Fu Wang, Tariq Alkhalifah

Project code

The first unified probabilistic forecasting and inversion framework for CO2 storage, which flexibly incorporates multiple physical processes and data types and enable uncertainty quantification.

JCP

Efficient physics-informed neural networks using hash encoding

Xinquan Huang, Tariq Alkhalifah

Project code

An efficient physics-informed neural network framework using hash encoding, which accelerates the convergence of PINN by at least 10 folds.

IEEE TGRS

Microseismic source imaging using physics-informed neural networks with hard constraints

Xinquan Huang, Tariq Alkhalifah

Project

A direct imaging framework for microseismic source location using physics-informed neural networks with hard constraints, which can achieve high-fidelity source location results without numerical simulation and can apply to both irregular 2D and 3D data. The combination of hard constraints and novel depth causality constraint can further improve the source location accuracy. The first PINN-based realistic application.

IEEE TGRS

A prior regularized full waveform inversion using generative diffusion models

Fu Wang, Xinquan Huang$\dagger$, Tariq Alkhalifah

Project

The first generative diffusion framework combined with full waveform inversion to achieve high-fidelity inversion results, which can further incorporate geological and well prior information by conditioning on geological and well data.

ICML 2023

NeuralStagger: Accelerating physics constrained neural PDE solver with spatial-temporal decomposition

Xinquan Huang, Wenlei Shi, Qi Meng, Yue Wang, Xiaotian Gao, Jia Zhang, Tie-Yan Liu

Project

A novel, simple, and general spatiotemporal decomposition strategy that speeds up the solution of partial differential equations using neural networks.

JGR: Solid Earth

PINNup: Robust neural network wavefield solutions using frequency upscaling and neuron splitting

Xinquan Huang, Tariq Alkhalifah

Project [code]

A novel physics-informed neural network framework using frequency upscaling and neuron splitting, yielding efficient, highly accurate, high-frequency wavefield solutions. The first PINN framework to achieve 32Hz wavefield solutions.

Journals and Major ML Conference Papers ($\dagger$: Corresponding Author)

AAAI, Xinquan Huang and Paris Perdikaris, (2025), PhysicsCorrect: A Training-Free Approach for Stable Neural PDE Simulations, Proceedings of the AAAI Conference on Artificial Intelligence (AAAI), Oral. [code]
GJI Xinquan Huang and Tariq Alkhalifah, (2025), Learned frequency-domain scattered wavefield solutions using neural operators, Geophysical Journal International, 241, 3, 1466-1477. [code]
JGR: ML and Computation Xinquan Huang, Fu Wang, Tariq Alkhalifah, (2025), Diffusion-based subsurface CO$_2$ multiphysics monitoring and forecasting, Journal of Geophysical Research: Machine Learning and Computation, 2(2), e2025JH000603. [code]
IEEE TGRS Xinquan Huang, Fu Wang, Tariq Alkhalifah, (2025), Physics-informed full waveform inversion using learned wavefield solutions, IEEE Transactions on Geoscience and Remote Sensing, vol. 63, pp. 1-14, Art no. 4509314.
Fu Wang$^\star$, Xinquan Huang$^\star$, Tariq Alkhalifah, (2025), Geological and Well prior assisted full waveform inversion using conditional diffusion models, $^\star$: equal contribution.
Earth and Space Science Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah, (2025), Latent representation learning in physics-informed neural networks for full waveform inversion, Earth and Space Science, 12(9), e2024EA004107.
Xianglong Hou, Xinquan Huang, Paris Perdikaris, (2025), CFO: Learning Continuous-Time PDE Dynamics via Flow-Matched Neural Operators, under review.
JCP Xinquan Huang and Tariq Alkhalifah, (2024), Efficient physics-informed neural networks using hash encoding, Journal of Computational Physics, 501: 112760. [code]
Neural Networks Xinquan Huang, Wenlei Shi, Xiaotian Gao, Xinran Wei, Jia Zhang, Jiang Bian, Mao Yang, Tie-Yan Liu, (2024), LordNet: an efficient neural network for learning to solve parametric partial differential equations without simulated data, Neural Networks, 176: 106354.
IEEE TGRS Xinquan Huang and Tariq Alkhalifah, (2024), Microseismic source imaging using physics-informed neural networks with hard constraints, IEEE Transactions on Geoscience and Remote Sensing, vol. 62, pp. 1-11, Art no. 4503011.
GP Xinquan Huang and Yuzhu Liu, (2024), An efficient elastic full-waveform inversion of multiple parameters with ocean-bottom seismometer data, Geophysical Prospecting, 72, 2123–2147.
Neural Networks Tariq Alkhalifah and Xinquan Huang, (2024), Physics-informed neural wavefields with Gabor basis functions, Neural Networks, 175: 106286. [code]
JGR: ML and Computation Fu Wang, Xinquan Huang, Tariq Alkhalifah, (2024), Controllable seismic velocity synthesis using generative diffusion models, Journal of Geophysical Research: Machine Learning and Computation, 1(3), e2024JH000153. [code]
IEEE GRSL Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah, (2024), Multiple Wavefield Solutions in Physics-Informed Neural Networks using Latent Representation, IEEE Geoscience and remote sensing letter, vol. 21, pp. 1-5, (2024), Art no. 7504105. [code]
ICML 2023 Xinquan Huang, Wenlei Shi, Qi Meng, Yue Wang, Xiaotian Gao, Jia Zhang, Tie-Yan Liu, (2023), NeuralStagger: Accelerating physics constrained neural PDE solver with spatial-temporal decomposition, International Conference on Machine Learning (ICML), 13993-14006.
IEEE GRSL Xinquan Huang and Tariq Alkhalifah, (2023), GaborPINN: Efficient physics informed neural networks using multiplicative filtered networks, IEEE Geoscience and remote sensing letter, vol. 20, pp. 1-5, Art no. 3003405. [code]
IEEE TGRS Fu Wang, Xinquan Huang$\dagger$, Tariq Alkhalifah, (2023), A prior regularized full waveform inversion using generative diffusion models, IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-11, Art no. 4509011.
JGR: Solid Earth Xinquan Huang and Tariq Alkhalifah, (2022), PINNup: Robust neural network wavefield solutions using frequency upscaling and neuron splitting, Journal of Geophysical Research: Solid Earth, 127(6), e2021JB023703. [code]
IEEE GRSL Xinquan Huang and Tariq Alkhalifah, (2022), Single reference frequency loss for multi-frequency wavefield representation using physics-informed neural networks, IEEE Geoscience and remote sensing letter, vol. 19, pp. 1-5, Art no. 3007105.
Geophysics Yuzhu Liu, Xinquan Huang$\dagger$, Jizhong Yang, Xueyi Liu, Bin Li, Liangguo Dong, Jianhua Geng, Jiubing Cheng, (2021), Multi-parameter model building in the Qiuyue structure with four-component OBS data, Geophysics, 86(5): B291-B301.
Patent Xinquan Huang and Yuzhu Liu, (2020), A source-receiver reciprocal elastic full-waveform inversion for multicomponent OBS data, Patent, patent number: ZL202010499751.8.
CJG Yuzhu Liu, Xinquan Huang, Xianwu Wan, Minao Sun, Liangguo Dong, (2019), Elastic multi-parameter full-waveform inversion for anisotropic media, Chinese Journal of Geophysics(in Chinese), 62(5): 1809-1823.
GPP Yuzhu Liu, Shilin Wu, Weigang Liu, Xinquan Huang, Zheng Wu, (2020), A review of seismic tomographic methods for the inversion of near-surface models, Geophysical Prospecting for Petroleum, 59(1): 1-11.

Conference Papers

SEG 2024 Xinquan Huang, Tariq Alkhalifah, Fu Wang, (2024), Physics-informed full-waveform inversion using learned wavefield solutions, SEG Technical Program Expanded Abstracts, 983-987.
SEG 2024 Fu Wang, Tariq Alkhalifah, Xinquan Huang, (2024), A prior regularized 3D full-waveform inversion using 2D generative diffusion models, SEG Technical Program Expanded Abstracts, 988-992.
SEG 2024 Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah, (2024), Full-waveform inversion using velocity-encoded physics-informed neural networks, SEG Technical Program Expanded Abstracts, 2142-2146.
EAGE 2024 Xinquan Huang and Tariq Alkhalifah, (2024), Diffusion-based subsurface multiphysics monitoring and forecasting, 85th EAGE Annual Conference and Exhibition, No. 1, pp. 1-5.
EAGE 2024 Xinquan Huang and Tariq Alkhalifah, (2024), Learned frequency-domain scattered wavefield solutions using neural operator, 85th EAGE Annual Conference and Exhibition, No. 1, pp. 1-5.
EAGE 2024 Fu Wang, Xinquan Huang, Tariq Alkhalifah, (2024), Controllable velocity synthesis using generative diffusion models, 85th EAGE Annual Conference and Exhibition, No. 1, pp. 1-5.
EAGE 2024 Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah, (2024), Wavefield Solutions Using a Physics-Informed Neural Network as a Function of Velocity, 85th EAGE Annual Conference and Exhibition, No. 1, pp. 1-5.
EAGE 2023 Xinquan Huang and Tariq Alkhalifah, (2023), Microseismic source imaging using physics-informed neural networks with hard constraints: a field application, 84th EAGE Annual Conference and Exhibition, Volume 2023, p.1-5.
EAGE 2023 Xinquan Huang and Tariq Alkhalifah, (2023), GaborPINN: Efficient physics informed neural networks using multiplicative filtered networks, 84th EAGE Annual Conference and Exhibition, Volume 2023, p.1-5.
EAGE 2023 Fu Wang, Xinquan Huang, Tariq Alkhalifah, (2023), Prior probability regularized FWI using generative diffusion models, 84th EAGE Annual Conference and Exhibition, Volume 2023, p.1-5.
SEG 2022 Xinquan Huang and Tariq Alkhalifah, (2022), Source location using physics-informed neural networks with hard constraints, SEG Technical Program Expanded Abstracts: 1770-1774.
EAGE 2022 Xinquan Huang, Tariq Alkhalifah, and Fu Wang, (2022), High-dimensional wavefield solutions using physics-informed neural networks with frequency-extension, 83rd EAGE Annual Conference and Exhibition, Volume 2022, p.1-5.
ICIP 2022 Tariq Alkhalifah and Xinquan Huang, (2022), Direct imaging using physics-informed neural networks IEEE International Conference on Image Processing, pp. 2781-2785.
NeurIPS 2021 workshop Xinquan Huang and Tariq Alkhalifah, (2021), Single Reference Frequency Loss for Multi-frequency Wavefield Representation using Physics-Informed Neural Networks, NeurIPS 2021 Workshop AI4Science.
SEG 2021 Xinquan Huang, Tariq Alkhalifah, Chao Song, (2021), A modified physics-informed neural network with positional encoding, SEG Technical Program Expanded Abstracts: 2480-2484.
SEG 2021 Tariq Alkhalifah, Chao Song, and Xinquan Huang, (2021), High-dimensional wavefield solutions based on neural network functions, SEG Technical Program Expanded Abstracts: 2440-2444.
SEG 2020 Fu Wang, Huazhong Wang, and Xinquan Huang$\dagger$, (2020), Rotation invariant CNN using scattering transform for seismic facies classification, SEG Technical Program Expanded Abstracts: 1646-1650.
SEG 2019 Xinquan Huang, Yuzhu Liu,and Fu Wang, (2019), A robust full waveform inversion using dictionary learning, SEG Technical Program Expanded Abstracts:1506-1510.
SEG 2019 Yuzhu Liu and Xinquan Huang $\dagger$, (2019), Full waveform inversion of an OBS dataset acquired from Q field in East China Sea, SEG Technical Program Expanded Abstracts : 1655-1659.

💻 Experience

2024.10 - present, Penn AI Fellow/AIxScience Fellow at University of Pennsylvania, Philadelphia.
2022.08 - 2023.03, research intern at Microsoft Research AI4Science, Beijing.
2022.05 - 2022.08, research intern at Microsoft Research, machine learning Group, Beijing.

📖 Educations

2020 - 2024, King Abdullah University of Science and Technology
2017 - 2020, Tongji University
2013 - 2017, Jilin University

🎖 Honors and Awards

2025.08 Penn AI Fellows
2024.11 UPenn AIxScience Postdoctoral Fellowship
2024.11 KAUST PSE Annual Best Dissertation Award finalists
2023.05 KAUST PSE Dean’s award
2021.06 KAUST virtual workshop Lightning talk contest Honorable Mention
2020.04 Outstanding graduate, Tongji University
2019.12 Guanghua Scholarship, Tongji University
2019.12 Geophysics Scholarshi, Tongji University
2019.12 Outstanding student paper, Annual Meeting of Chinese Geoscience Union (CGU)
2019.09 Third prize, China Petroleum Society 2019 geophysical exploration technology symposium
2018.12 Third prize (Leader), ”HUAWEI Cup” The 15th Post-Graduate Mathematical Contest In Modeling
2018.12 Geophysics Scholarship, Tongji University
2017.04 National Excellent Project, ”Undergraduate Innovation and Entrepreneurship Training Program”: Innovation Training, Jilin University
2016.08 The Sanhe Aroundwave Software CO. Scholarship, Jilin University
2016.08 First Place, Practical Skills Competition of Geophysics, Jilin University

‍🏫 Teaching

2023.01 – 2023.05, Teaching Assistant, Advanced Full waveform inversion, KAUST
2021.08 – 2021.12, Teaching Assistant, Seismic Imaging, KAUST
2019.07 – 2019.08, Teaching Assistant, High-Performance Computing, Tongji University

💬 Invited Talks

2025.11, Bridging AI and Physics for Scientific Discovery: From Neural PDE Solvers to Generative Inversion, Yongriver Forum, Eastern Institute of Technology, China
2025.09, Learning to Solve PDEs with Physics-Informed machine learning, SLB (Schlumberger), USA
2025.02, Physics-informed Machine Learning: neural PDE Solvers and their Applications in Subsurface Monitoring, Peking University Intelligent Youth Forum, Peking University, China
2025.02, Physics-informed Machine Learning: neural PDE Solvers and their Applications in Subsurface Monitoring, The Youth Forum of Beijing Zhongguancun Academy, China
2024.03, Physics-informed Machine Learning: neural PDE Solvers and their Applications in Subsurface Monitoring, Earth and Energy Division, Lawrence Livermore National Laboratory, USA
2023.10, Accelerating Physics-constrained Neural PDE Solver with Spatial-temporal Decomposition, Purdue University, USA
2021.06, Physics-informed neural network for high-frequency wavefield representation, KAUST Virtual Workshop Intelligent illumination of the Earth