Computational Chemistry
Density plot showing training vs generated physicochemical property distribution

Molecular Sets (MOSES): A Generative Modeling Benchmark

MOSES introduces a comprehensive benchmarking platform for molecular generative models, offering standardized datasets, evaluation metrics, and baselines. By providing a unified measuring stick, it aims to resolve reproducibility challenges in chemical distribution learning.

Document Processing
Statistics of the PubMed-OCR dataset including number of articles, pages, words, and bounding boxes.

PubMed-OCR: PMC Open Access OCR Annotations

PubMed-OCR provides 1.5M pages of scientific articles with comprehensive OCR annotations and bounding boxes to support layout-aware modeling and document analysis.

Computational Chemistry
Chemical structures and molecular representations feeding into a neural network model that processes atomized chemical knowledge

ChemDFM-R: Chemical Reasoning LLM with Atomized Knowledge

ChemDFM-R is a 14B-parameter chemical reasoning model that integrates a 101B-token dataset of atomized chemical knowledge. Using a mix-sourced distillation strategy and domain-specific reinforcement learning, it outperforms similarly sized models and DeepSeek-R1 on ChemEval.

Computational Chemistry
ChemBERTa masked language modeling visualization showing SMILES string CC(=O)O with masked tokens

ChemBERTa: Molecular Property Prediction via Transformers

This paper introduces ChemBERTa, a RoBERTa-based model pretrained on 77M SMILES strings. It systematically evaluates the impact of pretraining dataset size, tokenization strategies, and input representations (SMILES vs. SELFIES) on downstream MoleculeNet tasks, finding that performance scales positively with data size.

Computational Chemistry
MERMaid pipeline diagram showing PDF processing through VisualHeist segmentation, DataRaider VLM mining, and KGWizard graph construction to produce chemical knowledge graphs

MERMaid: Multimodal Chemical Reaction Mining from PDFs

MERMaid leverages fine-tuned vision models and VLM reasoning to mine chemical reaction data directly from PDF figures and tables. By handling context inference and coreference resolution, it builds high-fidelity knowledge graphs with 87% end-to-end accuracy.

Computational Chemistry
AtomLenz learns atom-level detection from hand-drawn molecular images with weak supervision

AtomLenz: Atom-Level OCSR with Limited Supervision

Introduces AtomLenz, an OCSR tool that combines object detection with a molecular graph constructor. Features a novel weakly supervised training scheme (ProbKT*) to learn atom-level localization from SMILES-only data, achieving state-of-the-art results on hand-drawn images.

Computational Chemistry
Overview of the ChemReco pipeline showing synthetic data generation and EfficientNet+Transformer architecture for hand-drawn chemical structure recognition

ChemReco: Hand-Drawn Chemical Structure Recognition

ChemReco automates the recognition of hand-drawn chemical structures using a synthetic data pipeline and an EfficientNet+Transformer architecture, achieving 96.90% accuracy on C-H-O molecules.

Computational Chemistry
Overview of the DECIMER.ai platform combining segmentation, classification, and image-to-SMILES recognition

DECIMER.ai: Optical Chemical Structure Recognition

DECIMER.ai addresses the lack of open tools for Optical Chemical Structure Recognition (OCSR) by providing a comprehensive, deep-learning-based workflow. It features a novel data generation pipeline (RanDepict), a web application, and models for segmentation and recognition that rival or exceed proprietary solutions.

Computational Chemistry
MolGrapher: Graph-based Visual Recognition of Chemical Structures

MolGrapher: Graph-based Chemical Structure Recognition

MolGrapher introduces a three-stage pipeline (keypoint detection, supergraph construction, GNN classification) for recognizing chemical structures from images. It achieves 91.5% accuracy on USPTO by treating molecules as graphs, and introduces the USPTO-30K benchmark.

Computational Chemistry
Handwritten chemical structure recognition with RCGD and SSML

Handwritten Chemical Structure Recognition with RCGD

Proposes a Random Conditional Guided Decoder (RCGD) and a Structure-Specific Markup Language (SSML) to handle the ambiguity and complexity of handwritten chemical structure recognition, validated on a new benchmark dataset (EDU-CHEMC) with 50,000 handwritten images.

Computational Chemistry

MolMiner: Deep Learning OCSR with YOLOv5 Detection

MolMiner replaces traditional rule-based vectorization with a deep learning object detection pipeline (YOLOv5) to extract chemical structures from PDFs. It outperforms open-source baselines on four benchmarks and introduces a new real-world dataset of 3,040 images.

Computational Chemistry
4-chlorofluorobenzene molecular structure diagram for SwinOCSR

SwinOCSR: End-to-End Chemical OCR with Swin Transformers

Proposes an end-to-end architecture replacing standard CNN backbones with Swin Transformer to capture global image context. Introduces Multi-label Focal Loss to handle severe token imbalance in chemical datasets.