Computational Chemistry

SVM-HMM Online Classifier for Chemical Symbols

A dual-stage classifier combining SVM and HMM to recognize online handwritten chemical symbols, introducing a reordering …

Computational Chemistry
Unified framework converts handwritten chemical expressions to structured graph representations

Unified Framework for Handwritten Chemical Expressions

A 2009 unified framework for inorganic/organic chemical handwriting recognition using graph search and statistical …

Computational Chemistry
Chemical Structure Reconstruction with chemoCR

Chemical Structure Reconstruction with chemoCR

A hybrid system combining pattern recognition and rule-based expert systems to reconstruct chemical structures from …

Computational Chemistry
ChemReader at TREC 2011 Chemical IR Track

ChemReader at TREC 2011 Chemical IR Track

ChemReader OCR software evaluation on TREC 2011 Chemical IR campaign achieving 93% accuracy on image-to-structure task.

Computational Chemistry
CLEF-IP 2012 Benchmark Overview

CLEF-IP 2012 Benchmark Overview

Overview of the CLEF-IP 2012 benchmarking lab focusing on patent passage retrieval, flowchart recognition, and chemical …

Computational Chemistry

MolRec at CLEF 2012

Overview and failure analysis of the MolRec rule-based chemical structure recognition system submitted to the CLEF 2012 …

Computational Chemistry

OSRA at CLEF-IP 2012

Evaluation of OSRA on patent data showing native image processing outperforms external tools via pairwise-distance …

Computational Chemistry

Overview of TREC 2011 Chemical IR Track

Overview of the 2011 TREC Chemical IR track, establishing benchmarks for patent prior art, technology surveys, and …

Computational Chemistry

Probabilistic OCSR with Markov Logic Networks

A probabilistic approach using Markov Logic Networks to recognize chemical structures from images, improving robustness …

Computational Chemistry
Optical Chemical Structure Recognition workflow visualization

Research on Chemical Expression Images Recognition

A 2015 methodology for Optical Chemical Structure Recognition (OCSR) focusing on improved handling of adhesive symbols …

Computational Chemistry

Chemical Structure Recognition (Rule-Based)

A strictly rule-based expert system (MolRec) for converting raster chemical diagrams into graph representations.

Computational Chemistry
ChemInk: Real-Time Recognition for Chemical Drawings

ChemInk: Real-Time Recognition for Chemical Drawings

A sketch recognition framework for chemical diagrams using a joint CRF model to combine multi-level visual features for …