Computational Chemistry

String Representations for Chemical Image Recognition

Ablation study comparing SMILES, DeepSMILES, SELFIES, and InChI for OCSR. SMILES achieves highest accuracy; SELFIES …

Computational Chemistry

SwinOCSR: Vision Transformers for Chemical OCR

Deep learning model using Swin Transformer and Focal Loss for OCSR, achieving 98.58% accuracy on synthetic benchmarks.

Computational Chemistry
ChemGrapher pipeline overview showing segmentation and classification stages

ChemGrapher

Deep learning OCSR method using semantic segmentation and classification CNNs to reconstruct chemical graphs with …

Computational Chemistry
DECIMER: Deep Learning for Chemical Image Recognition

DECIMER: Deep Learning for Chemical Image Recognition

Deep learning method for optical chemical structure recognition using image captioning networks trained on millions of …

Computational Chemistry

Deep Learning for Molecular Structure Extraction

An end-to-end deep learning approach using U-Net and CNN-LSTM to segment and predict chemical structures from document …

Computational Chemistry
Handwritten chemical ring recognition neural network architecture

Handwritten Chemical Ring Recognition with NNs

A two-phase neural network approach for recognizing handwritten heterocyclic chemical rings with ~94% accuracy.

Computational Chemistry
Optical chemical structure recognition example

Img2Mol: Accurate SMILES from Molecular Depictions

Two-stage CNN approach for converting molecular images to SMILES using CDDD embeddings and extensive data augmentation.

Computational Chemistry

Kekulé-1 System for Chemical Structure Recognition

Foundational OCSR method combining neural OCR with chemical rule-based post-processing for automated structure …

Computational Chemistry
Visualization of Gabor wavelets and Kohonen networks for chemical image classification

Chemical Machine Vision

Machine vision approach using Gabor wavelets and Kohonen networks to classify chemical raster images and extract …

Machine Learning Fundamentals
Diagram showing distributed representations with three pools of units (AGENT, RELATIONSHIP, PATIENT) connected via role/identity bindings

Distributed Representations

Hinton's 1984 technical report establishing the theoretical efficiency of distributed representations over local …

Computational Chemistry
Optical chemical structure recognition example

IMG2SMI: Translating Molecular Structure Images to SMILES

Campos & Ji's method for converting 2D molecular images to SMILES strings using Transformers and SELFIES representation.

Computational Chemistry

Kekulé: OCR-Optical Chemical Recognition

A seminal 1992 system for Optical Chemical Structure Recognition (OCSR) using neural networks and heuristic graph …