no code implementations • 1 Nov 2023 • Sandeep K. Chaudhuri, Qinyang Li, Krishna C. Mandal, Jianjun Hu
Photon counting radiation detectors have become an integral part of medical imaging modalities such as Positron Emission Tomography or Computed Tomography.
no code implementations • 30 Sep 2023 • Rongzhi Dong, Nihang Fu, dirisuriya M. D. Siriwardane, Jianjun Hu
Based on the DFT calculation results, six new materials, including Ti2HfO5, TaNbP, YMoN2, TaReO4, HfTiO2, and HfMnO2, with formation energy less than zero have been found.
no code implementations • 13 Sep 2023 • Sadman Sadeed Omee, Lai Wei, Jianjun Hu
While crystal structure prediction (CSP) remains a longstanding challenge, we introduce ParetoCSP, a novel algorithm for CSP, which combines a multi-objective genetic algorithm (MOGA) with a neural network inter-atomic potential (IAP) model to find energetically optimal crystal structures given chemical compositions.
1 code implementation • 10 Jul 2023 • Qin Li, Nihang Fu, Sadman Sadeed Omee, Jianjun Hu
This issue is well known in the field of bioinformatics for protein function prediction, in which a redundancy reduction procedure (CD-Hit) is always applied to reduce the sample redundancy by ensuring no pair of samples has a sequence similarity greater than a given threshold.
1 code implementation • 14 Jan 2023 • Rongzhi Dong, Yuqi Song, Edirisuriya M. D. Siriwardane, Jianjun Hu
Recently, deep learning, data-mining, and density functional theory (DFT)-based high-throughput calculations are widely performed to discover potential new materials for diverse applications.
1 code implementation • 29 Nov 2022 • Nihang Fu, Jeffrey Hu, Ying Feng, Gregory Morrison, Hans-Conrad zur Loye, Jianjun Hu
This work proposes a novel deep learning based BERT transformer language model BERTOS for predicting the oxidation states of all elements of inorganic compounds given only their chemical composition.
1 code implementation • 4 Nov 2022 • Daniel Varivoda, Rongzhi Dong, Sadman Sadeed Omee, Jianjun Hu
Uncertainty quantification (UQ) has increasing importance in building robust high-performance and generalizable materials property prediction models.
1 code implementation • 20 Sep 2022 • Lai Wei, Nihang Fu, Yuqi Song, Qian Wang, Jianjun Hu
Self-supervised neural language models have recently found wide applications in generative design of organic molecules and protein sequences as well as representation learning for downstream structure classification and functional prediction.
1 code implementation • 27 Jun 2022 • Nihang Fu, Lai Wei, Yuqi Song, Qinyang Li, Rui Xin, Sadman Sadeed Omee, Rongzhi Dong, Edirisuriya M. Dilanga Siriwardane, Jianjun Hu
We also find that the properties of the generated samples can be tailored by training the models with selected training sets such as high-bandgap materials.
no code implementations • 25 Apr 2022 • Lai Wei, Qinyang Li, Yuqi Song, Stanislav Stefanov, Edirisuriya M. D. Siriwardane, Fanglin Chen, Jianjun Hu
Here we propose BLMM Crystal Transformer, a neural network based probabilistic generative model for generative and tinkering design of inorganic materials.
1 code implementation • 27 Mar 2022 • Yong Zhao, Edirisuriya M. Dilanga Siriwardane, Zhenyao Wu, Nihang Fu, Mohammed Al-Fahdi, Ming Hu, Jianjun Hu
Discovering new materials is a challenging task in materials science crucial to the progress of human society.
1 code implementation • 12 Dec 2021 • Daniel Gleaves, Edirisuriya M. Dilanga Siriwardane, Yong Zhao, Nihang Fu, Jianjun Hu
For synthesizability prediction, our model significantly increases the baseline PU learning's true positive rate from 87. 9\% to 97. 9\% using 1/49 model parameters.
no code implementations • 7 Dec 2021 • Yong Zhao, Edirisuriya MD Siriwardane, Jianjun Hu
Deep learning based generative models such as deepfake have been able to generate amazing images and videos.
no code implementations • 10 Nov 2021 • Nghia Nguyen, Steph-Yves Louis, Lai Wei, Kamal Choudhary, Ming Hu, Jianjun Hu
Our work demonstrates the capability of deep graph neural networks to learn to predict phonon spectrum properties of crystal structures in addition to phonon density of states (DOS) and electronic DOS in which the output dimension is constant.
1 code implementation • 25 Sep 2021 • Sadman Sadeed Omee, Steph-Yves Louis, Nihang Fu, Lai Wei, Sourin Dey, Rongzhi Dong, Qinyang Li, Jianjun Hu
Machine learning (ML) based materials discovery has emerged as one of the most promising approaches for breakthroughs in materials science.
no code implementations • 9 Sep 2021 • Jianjun Hu, Stanislav Stefanov, Yuqi Song, Sadman Sadeed Omee, Steph-Yves Louis, Edirisuriya M. D. Siriwardane, Yong Zhao
The availability and easy access of large scale experimental and computational materials data have enabled the emergence of accelerated development of algorithms and models for materials property prediction, structure prediction, and generative design of materials.
no code implementations • 20 Apr 2021 • Wenhui Yang, Edirisuriya M. Dilanga Siriwardane, Rongzhi Dong, Yuxin Li, Jianjun Hu
Our experimental results show that our proposed algorithm CMCrystalHS can effectively solve the problem of inconsistent contact map dimensions and predict the crystal structures with high symmetry.
1 code implementation • 2 Mar 2021 • Alireza Nasiri, Jianjun Hu
Our extensive benchmark experiments show that our hybrid deep network models trained with combined contrastive and cross-entropy loss achieved the state-of-the-art performance on three benchmark datasets ESC-10, ESC-50, and US8K with validation accuracies of 99. 75\%, 93. 4\%, and 86. 49\% respectively.
2 code implementations • 28 Feb 2021 • Rui Xin, Edirisuriya M. D. Siriwardane, Yuqi Song, Yong Zhao, Steph-Yves Louis, Alireza Nasiri, Jianjun Hu
Our experiments show that while active learning itself may sample chemically infeasible candidates, these samples help to train effective screening models for filtering out materials with desired properties from the hypothetical materials created by the generative model.
1 code implementation • 17 Feb 2021 • Steph-Yves Louis, Alireza Nasiri, Fatima J. Rolland, Cameron Mitro, Jianjun Hu
While there exists a wide variety of graph neural networks (GNN) for node classification, only a minority of them adopt mechanisms that effectively target noise propagation during the message-passing procedure.
1 code implementation • 2 Feb 2021 • Jianjun Hu, Yong Zhao, Wenhui Yang, Yuqi Song, Edirisuriya MD Siriwardane, Yuxin Li, Rongzhi Dong
To our knowledge, AlphaCrystal is the first neural network based algorithm for crystal structure contact map prediction and the first method for directly reconstructing crystal structures from materials composition, which can be further optimized by DFT calculations.
Protein Structure Prediction
Materials Science
no code implementations • 1 Jan 2021 • Steph-Yves Louis, Alireza Nasiri, Fatima Christina Rolland, Cameron Mitro, Jianjun Hu
In this paper we propose the NODE-SELECT graph neural network (NSGNN): a novel and flexible graph neural network that uses subsetting filters to learn the contribution from the nodes selected to share their information.
no code implementations • 16 Dec 2020 • Yuqi Song, Edirisuriya M. Dilanga Siriwardane, Yong Zhao, Jianjun Hu
Two dimensional (2D) materials have emerged as promising functional materials with many applications such as semiconductors and photovoltaics because of their unique optoelectronic properties.
1 code implementation • 30 Oct 2020 • Yuxin Li, Wenhui Yang, Rongzhi Dong, Jianjun Hu
Lattice constants such as unit cell edge lengths and plane angles are important parameters of the periodic structures of crystal materials.
Materials Science Computational Physics
no code implementations • 21 Jun 2020 • Changchang Zeng, Shaobo Li, Qin Li, Jie Hu, Jianjun Hu
Machine Reading Comprehension (MRC) is a challenging Natural Language Processing(NLP) research field with wide real-world applications.
no code implementations • 17 Mar 2020 • Yong Zhao, Kunpeng Yuan, Yinqiao Liu, Steph-Yves Louis, Ming Hu, Jianjun Hu
Extensive benchmark experiments over 2, 170 Fm-3m face-centered-cubic (FCC) materials show that our ECD based CNNs can achieve good performance for elasticity prediction.
1 code implementation • 11 Mar 2020 • Steph-Yves Louis, Yong Zhao, Alireza Nasiri, Xiran Wong, Yuqi Song, Fei Liu, Jianjun Hu
Machine learning (ML) methods have gained increasing popularity in exploring and developing new materials.
no code implementations • 26 Feb 2020 • Yuqi Song, Joseph Lindsay, Yong Zhao, Alireza Nasiri, Steph-Yves Louis, Jie Ling, Ming Hu, Jianjun Hu
Noncentrosymmetric materials play a critical role in many important applications such as laser technology, communication systems, quantum computing, cybersecurity, and etc.
no code implementations • 12 Nov 2019 • Yabo Dan, Yong Zhao, Xiang Li, Shaobo Li, Ming Hu, Jianjun Hu
The percentage of chemically valid (charge neutral and electronegativity balanced) samples out of all generated ones reaches 84. 5% by our GAN when trained with materials from ICSD even though no such chemical rules are explicitly enforced in our GAN model, indicating its capability to learn implicit chemical composition rules.
no code implementations • 21 Feb 2019 • Guiying Zhang, Yuxin Cui, Yong Zhao, Jianjun Hu
State-of-the-art face recognition algorithms are able to achieve good performance when sufficient training images are provided.
no code implementations • 7 Mar 2018 • Yuxin Cui, Guiying Zhang, Zhonghao Liu, Zheng Xiong, Jianjun Hu
A nucleus-boundary model is introduced to predict nuclei and their boundaries simultaneously using a fully convolutional neural network.