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Chemical structure extraction from documents remains a hard problem due to both false positive identification of structures during segmentation and errors in the predicted structures. Current approaches rely on handcrafted rules and…

Machine Learning · Computer Science 2018-02-15 Joshua Staker , Kyle Marshall , Robert Abel , Carolyn McQuaw

Graph based molecular representation learning is essential for accurately predicting molecular properties in drug discovery and materials science; however, it faces significant challenges due to the intricate relationships among molecules…

Computational Engineering, Finance, and Science · Computer Science 2025-05-28 Zhengyang Zhou , Yunrui Li , Pengyu Hong , Hao Xu

Recent works have explored text-guided image editing using diffusion models and generated edited images based on text prompts. However, the models struggle to accurately locate the regions to be edited and faithfully perform precise edits.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Qian Wang , Biao Zhang , Michael Birsak , Peter Wonka

In recent years, molecular graph representation learning (GRL) has drawn much more attention in molecular property prediction (MPP) problems. The existing graph methods have demonstrated that 3D geometric information is significant for…

Machine Learning · Computer Science 2022-12-01 Hao Zhang , Nan Zhang , Ruixin Zhang , Lei Shen , Yingyi Zhang , Meng Liu

Molecular Relational Learning (MRL) is widely applied in natural sciences to predict relationships between molecular pairs by extracting structural features. The representational similarity between substructure pairs determines the…

Machine Learning · Computer Science 2026-05-25 Peiliang Zhang , Jingling Yuan , Qing Xie , Yongjun Zhu , Lin Li

Machine learning has the potential to automate molecular design and drastically accelerate the discovery of new functional compounds. Towards this goal, generative models and reinforcement learning (RL) using string and graph…

Machine Learning · Computer Science 2022-02-02 Daniel Flam-Shepherd , Alexander Zhigalin , Alán Aspuru-Guzik

The generation of drug-like molecules is crucial for drug design. Existing reinforcement learning (RL) methods often overlook structural information. However, feature engineering-based methods usually merely focus on binding affinity…

Machine Learning · Computer Science 2024-11-25 Xiangyu Zhang

Generative models of graphs based on discrete Denoising Diffusion Probabilistic Models (DDPMs) offer a principled approach to molecular generation by systematically removing structural noise through iterative atom and bond adjustments.…

Machine Learning · Computer Science 2025-11-03 Matteo Ninniri , Marco Podda , Davide Bacciu

We introduce a new graph diffusion model for small molecule generation, DMol, which outperforms the state-of-the-art DiGress model in terms of validity by roughly 1.5% across all benchmarking datasets while reducing the number of diffusion…

Machine Learning · Computer Science 2025-11-04 Peizhi Niu , Yu-Hsiang Wang , Vishal Rana , Chetan Rupakheti , Abhishek Pandey , Olgica Milenkovic

Molecular representation learning is crucial for the problem of molecular property prediction, where graph neural networks (GNNs) serve as an effective solution due to their structure modeling capabilities. Since labeled data is often…

Machine Learning · Computer Science 2023-09-26 Cameron Diao , Kaixiong Zhou , Zirui Liu , Xiao Huang , Xia Hu

Understanding molecular structure and related knowledge is crucial for scientific research. Recent studies integrate molecular graphs with their textual descriptions to enhance molecular representation learning. However, they focus on the…

Artificial Intelligence · Computer Science 2025-06-02 Yibo Li , Yuan Fang , Mengmei Zhang , Chuan Shi

Instruction-based image editing has made a great process in using natural human language to manipulate the visual content of images. However, existing models are limited by the quality of the dataset and cannot accurately localize editing…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Tiancheng Li , Jinxiu Liu , Huajun Chen , Qi Liu

Masked diffusion language models enable parallel token generation and offer improved decoding efficiency over autoregressive models. However, their performance degrades significantly when generating multiple tokens simultaneously, due to a…

Computation and Language · Computer Science 2026-05-12 Houxing Ren , Mingjie Zhan , Zimu Lu , Ke Wang , Yunqiao Yang , Haotian Hou , Junting Pan , Hongsheng Li

Generating precise 3D molecular geometries is crucial for drug discovery and material science. While prior efforts leverage 1D representations like SELFIES to ensure molecular validity, they fail to fully exploit the rich chemical knowledge…

Machine Learning · Computer Science 2025-12-15 Zhanpeng Chen , Weihao Gao , Shunyu Wang , Yanan Zhu , Hong Meng , Yuexian Zou

Designing new molecules with a set of predefined properties is a core problem in modern drug discovery and development. There is a growing need for de-novo design methods that would address this problem. We present MolecularRNN, the graph…

Machine Learning · Computer Science 2019-06-03 Mariya Popova , Mykhailo Shvets , Junier Oliva , Olexandr Isayev

Small molecules are essential to drug discovery, and graph-language models hold promise for learning molecular properties and functions from text. However, existing molecule-text datasets are limited in scale and informativeness,…

Biomolecules · Quantitative Biology 2025-06-03 Yihan Zhu , Gang Liu , Eric Inae , Meng Jiang

Chemical representation learning has gained increasing interest due to the limited availability of supervised data in fields such as drug and materials design. This interest particularly extends to chemical language representation learning,…

Chemical Physics · Physics 2024-08-06 Jun-Hyung Park , Yeachan Kim , Mingyu Lee , Hyuntae Park , SangKeun Lee

The integration of deep learning, particularly AI-Generated Content, with high-quality data derived from ab initio calculations has emerged as a promising avenue for transforming the landscape of scientific research. However, the challenge…

Machine Learning · Computer Science 2024-12-11 Kaiwei Zhang , Yange Lin , Guangcheng Wu , Yuxiang Ren , Xuecang Zhang , Bo wang , Xiaoyu Zhang , Weitao Du

Accurately predicting molecular properties is a challenging but essential task in drug discovery. Recently, many mono-modal deep learning methods have been successfully applied to molecular property prediction. However, the inherent…

Machine Learning · Computer Science 2024-09-16 Xiaohua Lu , Liangxu Xie , Lei Xu , Rongzhi Mao , Shan Chang , Xiaojun Xu

Molecule representation learning (MRL) methods aim to embed molecules into a real vector space. However, existing SMILES-based (Simplified Molecular-Input Line-Entry System) or GNN-based (Graph Neural Networks) MRL methods either take…

Machine Learning · Computer Science 2021-09-23 Hongwei Wang , Weijiang Li , Xiaomeng Jin , Kyunghyun Cho , Heng Ji , Jiawei Han , Martin D. Burke