no code implementations • 21 Apr 2024 • Weiheng Zhong, Hadi Meidani
However, the training of neural operators typically demands large training datasets, the acquisition of which can be prohibitively expensive.
no code implementations • 19 Oct 2023 • Tong Liu, Hadi Meidani
The traffic assignment problem is one of the significant components of traffic flow analysis for which various solution approaches have been proposed.
no code implementations • 1 May 2023 • Weiheng Zhong, Hadi Meidani, Jane Macfarlane
Traffic forecasting is an important issue in intelligent traffic systems (ITS).
no code implementations • 28 Mar 2023 • Rini Jasmine Gladstone, Helia Rahmani, Vishvas Suryakumar, Hadi Meidani, Marta D'Elia, Ahmad Zareei
Physics-based deep learning frameworks have shown to be effective in accurately modeling the dynamics of complex physical systems with generalization capability across problem inputs.
no code implementations • 25 Oct 2022 • Rini J. Gladstone, Mohammad A. Nabian, N. Sukumar, Ankit Srivastava, Hadi Meidani
Physics-Informed Neural Networks (PINNs) are a class of deep learning neural networks that learn the response of a physical system without any simulation data, and only by incorporating the governing partial differential equations (PDEs) in their loss function.
no code implementations • 21 Oct 2022 • Amir Kazemi, Hadi Meidani
A framework is proposed for the unconditional generation of synthetic time series based on learning from a single sample in low-data regime case.
no code implementations • 12 Oct 2022 • Tong Liu, Hadi Meidani
Rapid reliability assessment of transportation networks can enhance preparedness, risk mitigation, and response management procedures related to these systems.
1 code implementation • 27 Sep 2022 • Weiheng Zhong, Tanwi Mallick, Hadi Meidani, Jane Macfarlane, Prasanna Balaprakash
Moreover, most of the existing deep learning traffic forecasting models are black box, presenting additional challenges related to explainability and interpretability.
1 code implementation • 21 Mar 2022 • Weiheng Zhong, Hadi Meidani
We propose a new class of physics-informed neural networks, called physics-informed Variational Autoencoder (PI-VAE), to solve stochastic differential equations (SDEs) or inverse problems involving SDEs.
no code implementations • 19 Jul 2021 • Rini Jasmine Gladstone, Mohammad Amin Nabian, Vahid Keshavarzzadeh, Hadi Meidani
Robust topology optimization (RTO) also incorporates the effect of input uncertainties and produces a design with the best average performance of the structure while reducing the response sensitivity to input uncertainties.
no code implementations • 26 Apr 2021 • Mohammad Amin Nabian, Rini Jasmine Gladstone, Hadi Meidani
This importance sampling approach is straightforward and easy to implement in the existing PINN codes, and also does not introduce any new hyperparameter to calibrate.
no code implementations • 11 Aug 2020 • Amir Kazemi, Hadi Meidani
Increasing use of sensor data in intelligent transportation systems calls for accurate imputation algorithms that can enable reliable traffic management in the occasional absence of data.
no code implementations • 3 Aug 2020 • Mohammad Amin Nabian, Hadi Meidani
In this paper, we propose the Adaptive Physics-Informed Neural Networks (APINNs) for accurate and efficient simulation-free Bayesian parameter estimation via Markov-Chain Monte Carlo (MCMC).
no code implementations • 11 Oct 2018 • Mohammad Amin Nabian, Hadi Meidani
In this paper, we introduce a physics-driven regularization method for training of deep neural networks (DNNs) for use in engineering design and analysis problems.
no code implementations • 8 Jun 2018 • Mohammad Amin Nabian, Hadi Meidani
Developing efficient numerical algorithms for the solution of high dimensional random Partial Differential Equations (PDEs) has been a challenging task due to the well-known curse of dimensionality.
no code implementations • 28 Aug 2017 • Mohammad Amin Nabian, Hadi Meidani
This paper presents a deep learning framework for accelerating infrastructure system reliability analysis.