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Molecules have seemed like a natural fit to deep learning's tendency to handle a complex structure through representation learning, given enough data. However, this often continuous representation is not natural for understanding chemical…

Machine Learning · Computer Science 2021-03-12 Austin Clyde , Arvind Ramanathan , Rick Stevens

Deep generative models are increasingly becoming integral parts of the in silico molecule design pipeline and have dual goals of learning the chemical and structural features that render candidate molecules viable while also being flexible…

Biomolecules · Quantitative Biology 2021-06-08 Yair Schiff , Vijil Chenthamarakshan , Karthikeyan Natesan Ramamurthy , Payel Das

Printed Mathematical expression recognition (PMER) aims to transcribe a printed mathematical expression image into a structural expression, such as LaTeX expression. It is a crucial task for many applications, including automatic question…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Yingnan Fu , Tingting Liu , Ming Gao , Aoying Zhou

For several decades, chemical knowledge has been published in written text, and there have been many attempts to make it accessible, for example, by transforming such natural language text to a structured format. Although the discovered…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Sanghyun Yoo , Ohyun Kwon , Hoshik Lee

SMILES, a crucial textual representation of molecular structures, has garnered significant attention as a foundation for pre-trained language models (LMs). However, most existing pre-trained SMILES LMs focus solely on the single-token level…

Machine Learning · Computer Science 2025-06-10 Kangjie Zheng , Siyue Liang , Junwei Yang , Bin Feng , Zequn Liu , Wei Ju , Zhiping Xiao , Ming Zhang

In drug-discovery-related tasks such as virtual screening, machine learning is emerging as a promising way to predict molecular properties. Conventionally, molecular fingerprints (numerical representations of molecules) are calculated…

Machine Learning · Computer Science 2019-11-13 Shion Honda , Shoi Shi , Hiroki R. Ueda

Chemical databases store information in text representations, and the SMILES format is a universal standard used in many cheminformatics software. Encoded in each SMILES string is structural information that can be used to predict complex…

Machine Learning · Statistics 2018-08-16 Garrett B. Goh , Nathan O. Hodas , Charles Siegel , Abhinav Vishnu

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

Deploying generative machine learning techniques to generate novel chemical structures based on molecular fingerprint representation has been well established in molecular design. Typically, sequential learning (SL) schemes such as hidden…

Biomolecules · Quantitative Biology 2022-04-07 Mohammad Sajjad Ghaemi , Karl Grantham , Isaac Tamblyn , Yifeng Li , Hsu Kiang Ooi

Deep Learning models enjoy considerable success in Natural Language Processing. While deep architectures produce useful representations that lead to improvements in various tasks, they are often difficult to interpret. This makes the…

Computation and Language · Computer Science 2013-04-29 Christian Scheible , Hinrich Schuetze

Identifying the chemical structure from a graphical representation, or image, of a molecule is a challenging pattern recognition task that would greatly benefit drug development. Yet, existing methods for chemical structure recognition do…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Martijn Oldenhof , Edward De Brouwer , Adam Arany , Yves Moreau

Methods for automatic chemical retrosynthesis have found recent success through the application of models traditionally built for natural language processing, primarily through transformer neural networks. These models have demonstrated…

Machine Learning · Computer Science 2025-06-04 Sean Current , Ziqi Chen , Daniel Adu-Ampratwum , Xia Ning , Srinivasan Parthasarathy

In deep learning for drug discovery, chemical data are often represented as simplified molecular-input line-entry system (SMILES) sequences which allow for straightforward implementation of natural language processing methodologies, one…

Machine Learning · Computer Science 2023-10-05 Kathryn E. Kirchoff , Travis Maxfield , Alexander Tropsha , Shawn M. Gomez

In incremental learning, enhancing the generality of knowledge is crucial for adapting to dynamic data inputs. It can develop generalized representations or more balanced decision boundaries, preventing the degradation of long-term…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Hongyang Chen , Shaoling Pu , Lingyu Zheng , Zhongwu Sun

Table structure recognition is an essential part for making machines understand tables. Its main task is to recognize the internal structure of a table. However, due to the complexity and diversity in their structure and style, it is very…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Zhenrong Zhang , Jianshu Zhang , Jun Du

Since the advent of machine learning, interpretability has remained a persistent challenge, becoming increasingly urgent as generative models support high-stakes applications in drug and material discovery. Recent advances in large language…

Machine Learning · Computer Science 2025-12-10 Jaron Cohen , Alexander G. Hasson , Sara Tanovic

We propose a deep metric learning model to create embedded sub-spaces with a well defined structure. A new loss function that imposes Gaussian structures on the output space is introduced to create these sub-spaces thus shaping the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-07 Pedro D. Marrero Fernandez , Tsang Ing Ren , Tsang Ing Jyh , Fidel A. Guerrero Peña , Alexandre Cunha

Understanding the relationship between atomic structure (order) and chemical composition (chemistry) is critical for advancing materials science, yet traditional spectroscopic techniques can be slow and damaging to sensitive samples.…

Materials Science · Physics 2025-08-29 Mridul Kumar , Yevgeny Rakita

Retrosynthesis prediction is fundamental to drug discovery and chemical synthesis, requiring the identification of reactants that can produce a target molecule. Current template-free methods struggle to capture the structural invariance…

Machine Learning · Computer Science 2025-10-21 Jiaxi Zhuang , Yu Zhang , Aimin Zhou , Ying Qian

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