no code implementations • 13 Mar 2023 • Parshin Shojaee, Kazem Meidani, Amir Barati Farimani, Chandan K. Reddy
To address this, we propose TPSR, a Transformer-based Planning strategy for Symbolic Regression that incorporates Monte Carlo Tree Search into the transformer decoding process.
1 code implementation • 3 Mar 2023 • Yuyang Wang, Changwen Xu, Zijie Li, Amir Barati Farimani
These results highlight the potential for leveraging denoise pre-training approaches to build more generalizable neural potentials for complex molecular systems.
1 code implementation • 2 Dec 2022 • Cooper Lorsung, Amir Barati Farimani
Current machine learning techniques often require substantial computational cost for training data generation, and are restricted in scope to the training data flow regime.
1 code implementation • 26 Nov 2022 • Dule Shu, Zijie Li, Amir Barati Farimani
Machine learning models are gaining increasing popularity in the domain of fluid dynamics for their potential to accelerate the production of high-fidelity computational fluid dynamics data.
1 code implementation • 25 Oct 2022 • Zhonglin Cao, Rishikesh Magar, Yuyang Wang, Amir Barati Farimani
Furthermore, we revealed that MOFormer can be more data-efficient on quantum-chemical property prediction than structure-based CGCNN when training data is limited.
1 code implementation • 29 Sep 2022 • Yue Jian, Yuyang Wang, Amir Barati Farimani
Fingerprint works on graph structure at the feature extraction stage, while GNNs directly handle molecule structure in both the feature extraction and model prediction stage.
no code implementations • 22 Sep 2022 • Abraham George, Alison Bartsch, Amir Barati Farimani
The use of human demonstrations in reinforcement learning has proven to significantly improve agent performance.
1 code implementation • 19 Sep 2022 • Keqin Wang, Alison Bartsch, Amir Barati Farimani
In this work, we introduce a Deep Reinforcement Learning (DRL) algorithm call Multi-Action Networks (MAN) Learning that addresses the challenge of high-dimensional large discrete action spaces.
no code implementations • 12 Sep 2022 • Yuyang Wang, Zijie Li, Amir Barati Farimani
Graph neural networks (GNNs), which are capable of learning representations from graphical data, are naturally suitable for modeling molecular systems.
1 code implementation • 3 Sep 2022 • Changwen Xu, Yuyang Wang, Amir Barati Farimani
The model learns expressive representations by pretraining on a large unlabeled dataset via masked language modeling, followed by finetuning the model on downstream datasets concerning various polymer properties.
no code implementations • 21 Aug 2022 • Parand Akbari, Ning-Yu Kao, Amir Barati Farimani
Nonetheless, Machine learning (ML) methods, which are more flexible and cost-effective solutions, can be utilized to predict mechanical properties based on the processing parameters and material properties.
no code implementations • 25 Jul 2022 • AmirPouya Hemmasian, Francis Ogoke, Parand Akbari, Jonathan Malen, Jack Beuth, Amir Barati Farimani
In this work, we create three datasets of single-trail processes using Flow-3D and use them to train a convolutional neural network capable of predicting the behavior of the three-dimensional thermal field of the melt pool solely by taking three parameters as input: laser power, laser velocity, and time step.
no code implementations • 26 May 2022 • Zijie Li, Kazem Meidani, Amir Barati Farimani
Data-driven learning of partial differential equations' solution operators has recently emerged as a promising paradigm for approximating the underlying solutions.
no code implementations • 11 May 2022 • Francis Ogoke, Kyle Johnson, Michael Glinsky, Chris Laursen, Sharlotte Kramer, Amir Barati Farimani
Laser Powder Bed Fusion has become a widely adopted method for metal Additive Manufacturing (AM) due to its ability to mass produce complex parts with increased local control.
no code implementations • 4 May 2022 • Rishikesh Magar, Yuyang Wang, Amir Barati Farimani
Machine learning (ML) models have been widely successful in the prediction of material properties.
1 code implementation • 18 Feb 2022 • Yuyang Wang, Rishikesh Magar, Chen Liang, Amir Barati Farimani
On most benchmarks, the generic GNN pre-trained by iMolCLR rivals or even surpasses supervised learning models with sophisticated architecture designs and engineered features.
no code implementations • 26 Jan 2022 • Parand Akbari, Francis Ogoke, Ning-Yu Kao, Kazem Meidani, Chun-Yu Yeh, William Lee, Amir Barati Farimani
In this work, we introduced a comprehensive framework for benchmarking ML for melt pool characterization.
1 code implementation • 6 Dec 2021 • Zijie Li, Kazem Meidani, Prakarsh Yadav, Amir Barati Farimani
Molecular Dynamics (MD) simulation is a powerful tool for understanding the dynamics and structure of matter.
1 code implementation • 30 Nov 2021 • Rishikesh Magar, Yuyang Wang, Cooper Lorsung, Chen Liang, Hariharan Ramasubramanian, Peiyuan Li, Amir Barati Farimani
Inspired by the success of data augmentations in computer vision and natural language processing, we developed AugLiChem: the data augmentation library for chemical structures.
1 code implementation • ICLR 2022 • Zijie Li, Tianqin Li, Amir Barati Farimani
Our model, Temporal Point cloud Upsampling GAN (TPU-GAN), can implicitly learn the underlying temporal coherence from point cloud sequence, which in turn guides the generator to produce temporally coherent output.
no code implementations • ICLR 2022 • Tianqin Li, Zijie Li, Andrew Luo, Harold Rockwell, Amir Barati Farimani, Tai Sing Lee
To test our proposal, we show in a few-shot image generation task, that having a prototype memory during attention can improve image synthesis quality, learn interpretable visual concept clusters, as well as improve the robustness of the model.
1 code implementation • 9 Jul 2021 • Pranshu Pant, Ruchit Doshi, Pranav Bahl, Amir Barati Farimani
Reduced Order Modelling (ROM) has been widely used to create lower order, computationally inexpensive representations of higher-order dynamical systems.
1 code implementation • 26 Apr 2021 • Yayati Jadhav, Amir Barati Farimani
In this work, we provide a deep-learning framework that extracts relevant information from real-world videos of highly stochastic systems, with no prior knowledge and distills the underlying governing equation representing the system.
no code implementations • 8 Mar 2021 • Yilang Liu, Amir Barati Farimani
Comparing to conventional control strategies, the snake robots controlled by the trained PPO agent can achieve faster movement and more energy-efficient locomotion gait.
1 code implementation • 19 Feb 2021 • Yuyang Wang, Jianren Wang, Zhonglin Cao, Amir Barati Farimani
In this work, we present MolCLR: Molecular Contrastive Learning of Representations via Graph Neural Networks (GNNs), a self-supervised learning framework that leverages large unlabeled data (~10M unique molecules).
no code implementations • 29 Jan 2021 • Francis Ogoke, Amir Barati Farimani
Powder-based additive manufacturing techniques provide tools to construct intricate structures that are difficult to manufacture using conventional methods.
no code implementations • 19 Jan 2021 • Yuyang Wang, Zhonglin Cao, Amir Barati Farimani
Structure and geometry optimization of nanopores on such materials is beneficial for their performances in real-world engineering applications, like water desalination.
no code implementations • 12 Jan 2021 • Yuyang Wang, Kenji Shimada, Amir Barati Farimani
Our model can (1) encode the existing airfoil into a latent vector and reconstruct the airfoil from that, (2) generate novel airfoils by randomly sampling the latent vectors and mapping the vectors to the airfoil coordinate domain, and (3) synthesize airfoils with desired aerodynamic properties by optimizing learned features via a genetic algorithm.
no code implementations • 1 Jan 2021 • Zijie Li, Amir Barati Farimani
We present a data-driven model for fluid simulation under Lagrangian representation.
no code implementations • 3 Dec 2020 • Francis Ogoke, Kazem Meidani, Amirreza Hashemi, Amir Barati Farimani
The ability of the method to predict global properties from spatially irregular measurements with high accuracy is demonstrated by predicting the drag force associated with laminar flow around airfoils from scattered velocity measurements.
1 code implementation • 21 Oct 2020 • Pranshu Pant, Amir Barati Farimani
Large Eddy Simulation (LES) presents a more computationally efficient approach for solving fluid flows on lower-resolution (LR) grids but results in an overall reduction in solution fidelity.
no code implementations • 20 Oct 2020 • Kazem Meidani, Amir Barati Farimani
Many scientific phenomena are modeled by Partial Differential Equations (PDEs).
1 code implementation • 5 Oct 2020 • Rishikesh Magar, Lalit Ghule, Junhan Li, Yang Zhao, Amir Barati Farimani
In this work, we analyze vibration signal data of mechanical systems with bearings by combining different signal processing methods and coupling them with machine learning techniques to classify different types of bearing faults.
Ranked #1 on
Classification
on CWRU Bearing Dataset
no code implementations • 14 Aug 2020 • Mohammadreza Karamad, Rishikesh Magar, Yuting Shi, Samira Siahrostami, Ian D. Gates, Amir Barati Farimani
We benchmarked the performance of the OGCNN model with that of: 1) the crystal graph convolutional neural network (CGCNN), 2) other state-of-the-art descriptors for material representations including Many-body Tensor Representation (MBTR) and the Smooth Overlap of Atomic Positions (SOAP), and 3) other conventional regression machine learning algorithms where different crystal featurization methods have been used.
1 code implementation • 13 May 2020 • Changlin Jiang, Amir Barati Farimani
We developed a general deep learning framework, FluidGAN, that is capable of learning and predicting time-dependent convective flow coupled with energy transport.
no code implementations • 18 Mar 2020 • Rishikesh Magar, Prakarsh Yadav, Amir Barati Farimani
The fast and untraceable virus mutations take lives of thousands of people before the immune system can produce the inhibitory antibody.
no code implementations • 18 Jan 2020 • Juan Vargas, Lazar Andjelic, Amir Barati Farimani
Actor critic methods with sparse rewards in model-based deep reinforcement learning typically require a deterministic binary reward function that reflects only two possible outcomes: if, for each step, the goal has been achieved or not.
no code implementations • 16 Oct 2019 • Juan Carlos Vargas, Malhar Bhoite, Amir Barati Farimani
This capability of DRL generates more human-like behaviour and intelligence when applied to the robots.
no code implementations • 24 Jul 2018 • Rishi Sharma, Amir Barati Farimani, Joe Gomes, Peter Eastman, Vijay Pande
In typical machine learning tasks and applications, it is necessary to obtain or create large labeled datasets in order to to achieve high performance.
no code implementations • 23 Mar 2018 • Amir Barati Farimani, Joseph Gomes, Rishi Sharma, Franklin L. Lee, Vijay S. Pande
Phase segregation, the process by which the components of a binary mixture spontaneously separate, is a key process in the evolution and design of many chemical, mechanical, and biological systems.
no code implementations • 12 Mar 2018 • Evan N. Feinberg, Amir Barati Farimani, Rajendra Uprety, Amanda Hunkele, Gavril W. Pasternak, Susruta Majumdar, Vijay S. Pande
Computational chemists typically assay drug candidates by virtually screening compounds against crystal structures of a protein despite the fact that some targets, like the $\mu$ Opioid Receptor and other members of the GPCR family, traverse many non-crystallographic states.
no code implementations • 7 Sep 2017 • Amir Barati Farimani, Joseph Gomes, Vijay S. Pande
We have developed a new data-driven paradigm for the rapid inference, modeling and simulation of the physics of transport phenomena by deep learning.