no code implementations • 22 Mar 2024 • Jian Li, Pu Ren, Yang Liu, Hao Sun
Object-centric learning aims to break down complex visual scenes into more manageable object representations, enhancing the understanding and reasoning abilities of machine learning systems toward the physical world.
no code implementations • 28 Feb 2024 • R. Bailey Bond, Pu Ren, Jerome F. Hajjar, Hao Sun
There is growing interest in using machine learning (ML) methods for structural metamodeling due to the substantial computational cost of traditional simulations.
no code implementations • 24 Feb 2024 • Wuyang Chen, Jialin Song, Pu Ren, Shashank Subramanian, Dmitriy Morozov, Michael W. Mahoney
To reduce the need for training data with simulated solutions, we pretrain neural operators on unlabeled PDE data using reconstruction-based proxy tasks.
no code implementations • 4 Oct 2023 • Ilan Naiman, N. Benjamin Erichson, Pu Ren, Michael W. Mahoney, Omri Azencot
In this work, we introduce Koopman VAE (KVAE), a new generative framework that is based on a novel design for the model prior, and that can be optimized for either regular and irregular training data.
1 code implementation • 24 Jun 2023 • Pu Ren, N. Benjamin Erichson, Shashank Subramanian, Omer San, Zarija Lukic, Michael W. Mahoney
Super-Resolution (SR) techniques aim to enhance data resolution, enabling the retrieval of finer details, and improving the overall quality and fidelity of the data representation.
no code implementations • 9 May 2023 • Pu Ren, Chengping Rao, Hao Sun, Yang Liu
In this paper, we present a PINN framework for seismic wave inversion in layered (1D) semi-infinite domain.
no code implementations • 6 Dec 2022 • R. Bailey Bond, Pu Ren, Jerome F. Hajjar, Hao Sun
Clustering analysis of sequence data continues to address many applications in engineering design, aided with the rapid growth of machine learning in applied science.
no code implementations • 25 Oct 2022 • Pu Ren, Chengping Rao, Su Chen, Jian-Xun Wang, Hao Sun, Yang Liu
In this paper, we present a novel physics-informed neural network (PINN) model for seismic wave modeling in semi-infinite domain without the nedd of labeled data.
1 code implementation • 2 Aug 2022 • Pu Ren, Chengping Rao, Yang Liu, Zihan Ma, Qi Wang, Jian-Xun Wang, Hao Sun
High-fidelity simulation of complex physical systems is exorbitantly expensive and inaccessible across spatiotemporal scales.
no code implementations • ICLR 2022 • Chengping Rao, Pu Ren, Yang Liu, Hao Sun
There have been growing interests in leveraging experimental measurements to discover the underlying partial differential equations (PDEs) that govern complex physical phenomena.
2 code implementations • 26 Jun 2021 • Pu Ren, Chengping Rao, Yang Liu, JianXun Wang, Hao Sun
Partial differential equations (PDEs) play a fundamental role in modeling and simulating problems across a wide range of disciplines.
2 code implementations • 9 Jun 2021 • Chengping Rao, Pu Ren, Qi Wang, Oral Buyukozturk, Hao Sun, Yang Liu
Modeling complex spatiotemporal dynamical systems, such as the reaction-diffusion processes, have largely relied on partial differential equations (PDEs).
no code implementations • 1 Jul 2020 • Pu Ren, Xinyu Chen, Lijun Sun, Hao Sun
To address this fundamental issue, this paper presents an incremental Bayesian tensor learning method for reconstruction of spatiotemporal missing data in SHM and forecasting of structural response.