Search Results for author: Tengfei Luo

Found 8 papers, 4 papers with code

Inverse Molecular Design with Multi-Conditional Diffusion Guidance

1 code implementation24 Jan 2024 Gang Liu, Jiaxin Xu, Tengfei Luo, Meng Jiang

We extensively validate our model for multi-conditional polymer and small molecule generation.

Denoising Drug Discovery

DiffHybrid-UQ: Uncertainty Quantification for Differentiable Hybrid Neural Modeling

no code implementations30 Dec 2023 Deepak Akhare, Tengfei Luo, Jian-Xun Wang

Addressing this gap, we introduce a novel method, DiffHybrid-UQ, for effective and efficient uncertainty propagation and estimation in hybrid neural differentiable models, leveraging the strengths of deep ensemble Bayesian learning and nonlinear transformations.

Uncertainty Quantification

Probabilistic Physics-integrated Neural Differentiable Modeling for Isothermal Chemical Vapor Infiltration Process

no code implementations13 Nov 2023 Deepak Akhare, Zeping Chen, Richard Gulotty, Tengfei Luo, Jian-Xun Wang

Due to the complexities and limited experimental data of the isothermal CVI densification process, we have developed a data-driven predictive model using the physics-integrated neural differentiable (PiNDiff) modeling framework.

Uncertainty Quantification

Semi-Supervised Graph Imbalanced Regression

1 code implementation20 May 2023 Gang Liu, Tong Zhao, Eric Inae, Tengfei Luo, Meng Jiang

The training data balance is achieved by (1) pseudo-labeling more graphs for under-represented labels with a novel regression confidence measurement and (2) augmenting graph examples in latent space for remaining rare labels after data balancing with pseudo-labels.

Graph Regression regression

Data-Centric Learning from Unlabeled Graphs with Diffusion Model

1 code implementation17 Mar 2023 Gang Liu, Eric Inae, Tong Zhao, Jiaxin Xu, Tengfei Luo, Meng Jiang

A conventional approach is training a model with the unlabeled graphs on self-supervised tasks and then fine-tuning the model on the prediction tasks.

Denoising Graph Property Prediction +2

Graph Rationalization with Environment-based Augmentations

1 code implementation6 Jun 2022 Gang Liu, Tong Zhao, Jiaxin Xu, Tengfei Luo, Meng Jiang

Rationale is defined as a subset of input features that best explains or supports the prediction by machine learning models.

Graph Regression Property Prediction +1

Predicting Defects in Laser Powder Bed Fusion using in-situ Thermal Imaging Data and Machine Learning

no code implementations16 Dec 2021 Sina Malakpour Estalaki, Cody S. Lough, Robert G. Landers, Edward C. Kinzel, Tengfei Luo

In addition to using the thermal features of each voxel to predict its own state, the thermal features of neighboring voxels are also included as inputs.

Binary Classification Feature Importance

Impact of Surface and Pore Characteristics on Fatigue Life of Laser Powder Bed Fusion Ti-6Al-4V Alloy Described by Neural Network Models

no code implementations28 Aug 2021 Seunghyun Moon, Ruimin Ma, Ross Attardo, Charles Tomonto, Mark Nordin, Paul Wheelock, Michael Glavicic, Maxwell Layman, Richard Billo, Tengfei Luo

For the grit-blasted samples, the contour laser scan in the LPBF strategy led to a pore-depletion zone isolating surface and internal pores with different features.

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