Search Results for author: Chaoran Cheng

Found 11 papers, 4 papers with code

Hard Constraint Guided Flow Matching for Gradient-Free Generation of PDE Solutions

no code implementations2 Dec 2024 Chaoran Cheng, Boran Han, Danielle C. Maddix, Abdul Fatir Ansari, Andrew Stuart, Michael W. Mahoney, Yuyang Wang

Generative models that satisfy hard constraints are crucial in many scientific and engineering applications where physical laws or system requirements must be strictly respected.

Geometric Point Attention Transformer for 3D Shape Reassembly

no code implementations26 Nov 2024 Jiahan Li, Chaoran Cheng, Jianzhu Ma, Ge Liu

Shape assembly, which aims to reassemble separate parts into a complete object, has gained significant interest in recent years.

Pose Estimation

Hotspot-Driven Peptide Design via Multi-Fragment Autoregressive Extension

no code implementations26 Nov 2024 Jiahan Li, Tong Chen, Shitong Luo, Chaoran Cheng, Jiaqi Guan, Ruihan Guo, Sheng Wang, Ge Liu, Jian Peng, Jianzhu Ma

To address these challenges, we introduce PepHAR, a hot-spot-driven autoregressive generative model for designing peptides targeting specific proteins.

Training Free Guided Flow Matching with Optimal Control

no code implementations23 Oct 2024 Luran Wang, Chaoran Cheng, Yizhen Liao, Yanru Qu, Ge Liu

Moreover, existing methods predominately focus on Euclidean data manifold, and there is a compelling need for guided flow methods on complex geometries such as SO(3), which prevails in high-stake scientific applications like protein design.

Image Manipulation Protein Design

Neural P$^3$M: A Long-Range Interaction Modeling Enhancer for Geometric GNNs

no code implementations26 Sep 2024 Yusong Wang, Chaoran Cheng, Shaoning Li, Yuxuan Ren, Bin Shao, Ge Liu, Pheng-Ann Heng, Nanning Zheng

Geometric graph neural networks (GNNs) have emerged as powerful tools for modeling molecular geometry.

Full-Atom Peptide Design based on Multi-modal Flow Matching

1 code implementation2 Jun 2024 Jiahan Li, Chaoran Cheng, Zuofan Wu, Ruihan Guo, Shitong Luo, Zhizhou Ren, Jian Peng, Jianzhu Ma

Peptides, short chains of amino acid residues, play a vital role in numerous biological processes by interacting with other target molecules, offering substantial potential in drug discovery.

Drug Discovery

Categorical Flow Matching on Statistical Manifolds

1 code implementation26 May 2024 Chaoran Cheng, Jiahan Li, Jian Peng, Ge Liu

We introduce Statistical Flow Matching (SFM), a novel and mathematically rigorous flow-matching framework on the manifold of parameterized probability measures inspired by the results from information geometry.

Equivariant Neural Operator Learning with Graphon Convolution

1 code implementation NeurIPS 2023 Chaoran Cheng, Jian Peng

We propose a general architecture that combines the coefficient learning scheme with a residual operator layer for learning mappings between continuous functions in the 3D Euclidean space.

Operator learning

Equivariant Point Cloud Analysis via Learning Orientations for Message Passing

1 code implementation CVPR 2022 Shitong Luo, Jiahan Li, Jiaqi Guan, Yufeng Su, Chaoran Cheng, Jian Peng, Jianzhu Ma

In this work, we propose a novel and simple framework to achieve equivariance for point cloud analysis based on the message passing (graph neural network) scheme.

Graph Neural Network

Orientation-Aware Graph Neural Networks for Protein Structure Representation Learning

no code implementations28 Jan 2022 Jiahan Li, Shitong Luo, Congyue Deng, Chaoran Cheng, Jiaqi Guan, Leonidas Guibas, Jian Peng, Jianzhu Ma

In this work, we propose the Orientation-Aware Graph Neural Networks (OAGNNs) to better sense the geometric characteristics in protein structure (e. g. inner-residue torsion angles, inter-residue orientations).

Representation Learning

DeepVar: An End-to-End Deep Learning Approach for Genomic Variant Recognition in Biomedical Literature

no code implementations5 Jun 2020 Chaoran Cheng, Fei Tan, Zhi Wei

We consider the problem of Named Entity Recognition (NER) on biomedical scientific literature, and more specifically the genomic variants recognition in this work.

Feature Engineering named-entity-recognition +2

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