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Large-scale molecular representation methods have revolutionized applications in material science, such as drug discovery, chemical modeling, and material design. With the rise of transformers, models now learn representations directly from…

Computational Engineering, Finance, and Science · Computer Science 2024-10-17 Indra Priyadarsini , Seiji Takeda , Lisa Hamada , Emilio Vital Brazil , Eduardo Soares , Hajime Shinohara

Large-scale pre-training methodologies for chemical language models represent a breakthrough in cheminformatics. These methods excel in tasks such as property prediction and molecule generation by learning contextualized representations of…

Machine Learning · Computer Science 2025-07-18 Eduardo Soares , Victor Shirasuna , Emilio Vital Brazil , Renato Cerqueira , Dmitry Zubarev , Kristin Schmidt

Molecular property prediction has gained significant attention due to its transformative potential in multiple scientific disciplines. Conventionally, a molecule graph can be represented either as a graph-structured data or a SMILES text.…

Machine Learning · Computer Science 2023-07-17 Chen Qian , Huayi Tang , Zhirui Yang , Hong Liang , Yong Liu

Deep generative models have recently been applied to molecule design. If the molecules are encoded in linear SMILES strings, modeling becomes convenient. However, models relying on string representations tend to generate invalid samples and…

Machine Learning · Computer Science 2020-10-20 Bo Pang , Tian Han , Ying Nian Wu

We introduce Functional Group-Aware Representations for Small Molecules (FARM), a novel foundation model designed to bridge the gap between SMILES, natural language, and molecular graphs. The key idea behind FARM is the incorporation of…

Machine Learning · Computer Science 2026-04-29 Thao Nguyen , Kuan-Hao Huang , Ge Liu , Martin D. Burke , Ying Diao , Heng Ji

There is more and more evidence that machine learning can be successfully applied in materials science and related fields. However, datasets in these fields are often quite small ($\ll1000$ samples). It makes the most advanced machine…

Computational Physics · Physics 2022-02-25 Guillaume Lambard , Ekaterina Gracheva

In the field of chemical structure recognition, the task of converting molecular images into machine-readable data formats such as SMILES string stands as a significant challenge, primarily due to the varied drawing styles and conventions…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Yufan Chen , Ching Ting Leung , Yong Huang , Jianwei Sun , Hao Chen , Hanyu Gao

Large language models (LLMs) are increasingly recognized as powerful tools for scientific discovery, particularly in molecular science. A fundamental requirement for these models is the ability to accurately understand molecular structures,…

Machine Learning · Computer Science 2025-05-23 Yunhui Jang , Jaehyung Kim , Sungsoo Ahn

Molecular property prediction is crucial for drug discovery and materials science, yet existing approaches suffer from limited interpretability, poor cross-task generalization, and lack of chemical reasoning capabilities. Traditional…

Machine Learning · Computer Science 2025-10-20 Jiaxi Zhuang , Yaorui Shi , Jue Hou , Yunong He , Mingwei Ye , Mingjun Xu , Yuming Su , Linfeng Zhang , Ying Qian , Linfeng Zhang , Guolin Ke , Hengxing Cai

In recent years, artificial intelligence has played an important role on accelerating the whole process of drug discovery. Various of molecular representation schemes of different modals (e.g. textual sequence or graph) are developed. By…

Machine Learning · Computer Science 2022-11-28 Tianyu Wu , Yang Tang , Qiyu Sun , Luolin Xiong

Transformer-based models trained on large and general purpose datasets consisting of molecular strings have recently emerged as a powerful tool for successfully modeling various structure-property relations. Inspired by this success, we…

Biomolecules · Quantitative Biology 2025-04-02 Jerret Ross , Brian Belgodere , Samuel C. Hoffman , Vijil Chenthamarakshan , Jiri Navratil , Youssef Mroueh , Payel Das

We seek to automate the design of molecules based on specific chemical properties. Our primary contributions are a simpler method for generating SMILES strings guaranteed to be chemically valid, using a combination of a new context-free…

Machine Learning · Computer Science 2018-11-29 Egor Kraev

Deep learning is now widely used in drug discovery, providing significant acceleration and cost reduction. As the most fundamental building block, molecular representation is essential for predicting molecular properties to enable various…

Machine Learning · Computer Science 2024-04-22 Haoqiang Guo , Sendong Zhao , Haochun Wang , Yanrui Du , Bing Qin

Purpose: Large Language Models (LLMs) like GPT (Generative Pre-trained Transformer) from OpenAI and LLaMA (Large Language Model Meta AI) from Meta AI are increasingly recognized for their potential in the field of cheminformatics,…

Biomolecules · Quantitative Biology 2024-05-22 Shaghayegh Sadeghi , Alan Bui , Ali Forooghi , Jianguo Lu , Alioune Ngom

Molecule generation is key to drug discovery and materials science, enabling the design of novel compounds with specific properties. Large language models (LLMs) can learn to perform a wide range of tasks from just a few examples. However,…

Computation and Language · Computer Science 2025-09-30 Wen Tao , Jing Tang , Alvin Chan , Bryan Hooi , Baolong Bi , Nanyun Peng , Yuansheng Liu , Yiwei Wang

Descriptor generation methods using latent representations of encoder$-$decoder (ED) models with SMILES as input are useful because of the continuity of descriptor and restorability to the structure. However, it is not clear how the…

Chemical Physics · Physics 2023-04-14 Shumpei Nemoto , Tadahaya Mizuno , Hiroyuki Kusuhara

Molecular property prediction is essential in chemistry, especially for drug discovery applications. However, available molecular property data is often limited, encouraging the transfer of information from related data. Transfer learning…

Machine Learning · Computer Science 2022-07-07 Johan Broberg , Maria Bånkestad , Erik Ylipää

In this work, we propose a simple transformer-based baseline for multimodal molecular representation learning, integrating three distinct modalities: SMILES strings, 2D graph representations, and 3D conformers of molecules. A key aspect of…

Machine Learning · Computer Science 2024-10-25 Andrei Manolache , Dragos Tantaru , Mathias Niepert

Molecules are graphs, but large language models~(LLMs) are usually asked to reason about them through linear strings. The most popular molecular representation, SMILES, compresses atoms, bonds, branches and rings into a compact sequence in…

Biomolecules · Quantitative Biology 2026-05-19 Zhiyuan Yan , Chen Liu , Boxuan Zhao , Kaiqing Lin , Jixiang Zhao , Yimi Wang , Liuzhenghao Lv , Hao Li , Shanzhuo Zhang , Li Yuan , Fanyang Mo

In drug discovery, predicting the absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties of small-molecule drugs is critical for ensuring safety and efficacy. However, the process of accurately predicting these…

Machine Learning · Computer Science 2026-03-27 Bohao Xu , Yingzhou Lu , Chenhao Li , Ling Yue , Xiao Wang , Tianfan Fu , Minjie Shen , Lulu Chen