Gang Liu

Gang Liu

Gang Liu / 刘网

PhD Candidate | On the Job Market 2025

gliu7@nd.edu GitHub Google Scholar πŸ€— Hugging Face LinkedIn

Research Interests: Generative AI, Foundation Models, Data-Centric Learning, AI for Science, Molecular Discovery, Graph Learning

Hi! I am a fifth-year Ph.D. student at the University of Notre Dame, working with Prof. Meng Jiang on generative AI and foundation models for molecular discovery. I have published as (co-)first author in NeurIPS, KDD, ICLR, IEEE TKDE, ACM TKDD, and Cell Reports Physical Science. Our work has been featured by MIT News, Notre Dame Engineering, and Snap Research. I am the lead- or co-author of two books on deep learning for polymers and the creator of torch-molecule, an open-source toolkit for molecular discovery.

My awards include the IBM Ph.D. Fellowship, OpenAI Researcher Access Program, and Kaggle Competition Research Grant. I lead the NeurIPS 2025 Open Polymer Challenge with 10,000+ entrants / 50,000+ submissions from 100+ countries.

I am on the research job market 2025 (TTAP, Postdoc, research lab in industry). I'm always open to collaboration and discussion. Feel free to contact me if you'd like to learn more about my research!

Latest News

2025

2024

2023

2022

Research by Area

View All Publications β†’
Active Generative & Foundation Models Data-Centric Learning Multimodal Learning Representation Learning Scientific Applications Books

1. Generative and Foundation Models for Inverse Molecular Design

We develop generative foundation models for multi-conditional, multi-modal, and synthesizable molecular design. We develop Graph Diffusion Transformers and multimodal large language models (Llamole) to tell us what a molecule looks like and how to synthesize the molecule (retrosynthetic planning).

Related Publications:

Multimodal Large Language Models for Inverse Molecular Design with Retrosynthetic Planning

Gang Liu, Michael Sun, Wojciech Matusik, Meng Jiang, Jie Chen

The International Conference on Learning Representations (ICLR), 2025 [paper] [code] [models] [MIT News]

Graph Diffusion Transformers for Multi-Conditional Molecular Generation

Gang Liu, Jiaxin Xu, Tengfei Luo, Meng Jiang

Conference on Neural Information Processing Systems (NeurIPS), 2024 (Oral) [paper][code]
Llamole Multimodal LLM Demo
Graph Diffusion Transformer

2. Data-Centric Learning for Virtual Screening

We use interpretable rationales (e.g., substructures in molecules) to overcome limited supervision, address imbalanced learning, and advance transfer learning.

Related Publications:

Data-Centric Learning from Unlabeled Graphs with Diffusion Model

Gang Liu, Eric Inae, Tong Zhao, Jiaxin Xu, Tengfei Luo, Meng Jiang

Conference on Neural Information Processing Systems (NeurIPS), 2023 [paper] [code]

Semi-Supervised Graph Imbalanced Regression

Gang Liu, Tong Zhao, Eric Inae, Tengfei Luo, Meng Jiang

Graph Rationalization with Environment-based Augmentations

Gang Liu, Tong Zhao, Jiaxin Xu, Tengfei Luo, Meng Jiang

ACM SIGKDD, 2022 [paper][code]

✨ Try our [online tool] for polymer property prediction!

Data-Centric Transfer Learning
Semi-Supervised Graph Imbalanced Regression
Graph Rationalization with Environment-based Augmentations

3. Translational Impacts

Our research leads to the discovery of new polymer materials for applications in sustainable gas separation. Our research reaches broader communities by open-source toolkits and competitions.

Related Publications:

Superior Polymeric Gas Separation Membrane Designed by Explainable Graph Machine Learning

Jiaxin Xu*, Agboola Suleiman*, Gang Liu*, Michael Perez, Renzheng Zhang, Meng Jiang, Ruilan Guo, Tengfei Luo

Cell Reports Physical Science, 2024 [paper][patent]

✨ New sustainable materials discovered by SGIR (KDD'23) and GREA (KDD'22) for heat-free gas separation! Featured by [Notre Dame News].

Related Competitions:

NeurIPS - Open Polymer Prediction 2025

Gang Liu, Sobin Alosious, Yuhan Liu, Eric Inae, Yihan Zhu, Renzheng Zhang, Jiaxin Xu, Ying Li, Tengfei Luo, Meng Jiang, ... and MarΓ­a Cruz

Accepted by NeurIPS 2025 Competition Track [website][Kaggle]
Cell Reports Physical Science Cover
open polymer challenge

Software & Toolkits

View All Software/Code β†’

Open-source tools and platforms developed for the research community

Awards & Honors

Professional Activities & Service

Media Coverage

Reviewer

  • 2026 ICLR
  • 2025 NeurIPS, KDD (Aug/Feb), ICLR, ICML, AAAI
  • 2024 NeurIPS, KDD, ICLR, ICML, AAAI, WWW, SDM
  • 2023 NeurIPS, KDD, ICML, AAAI
  • 2022 NeurIPS, ICML
  • Journals Pattern Recognition, IEEE TKDE, IEEE TCYB, Information Sciences, Digital Signal Processing

Mentorship

Experience

Education

2021 – 2026
Ph.D. in Computer Science and Engineering
University of Notre Dame, U.S.
Advisor: Prof. Meng Jiang
I also work closely with Prof. Tengfei Luo on deploying ML models and developing foundation models for polymers.
2017 – 2021
B.E. in Software Engineering
Southwest University, China
Advisor: Prof. Yong Deng
Advisor: Prof. Fuyuan Xiao

Internships

05 – 08, 2024
Research Intern, MIT-IBM Watson AI Lab, Boston, U.S.
Worked on LLM+Graph models for molecules with Dr. Jie Chen
02/2024 - 05/2025
Research Intern with Extended Affiliation, Broad Institute of MIT and Harvard, Boston, U.S.
Worked on drug/molecular representation learning with cellular response data with Dr. Anne E. Carpenter and Dr. Shantanu Singh
05 – 08, 2023
Applied Scientist Intern, Amazon, Seattle, U.S.
Worked on Transformers with attribute inputs for sequential recommendations