chimtrangbu/HandwritenFormularToLatex

Converting handwritten formulas to LaTeX

HandwritenFormularToLatex

Converting handwritten formulas to LaTeX

• References:

  • Handwritten equations to LaTeX

  • On Machine Understanding of Online Handwritten Mathematical Expressions

  • Image-to-Markup Generation with Coarse-to-Fine Attention

• Download dataset of 85 diffirent math symbols in handwriting from Kaggle -> folder 'extracted_images'

• Create dataset of mathematical formulas by Generator

  • Extracting 23 symbols ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '+', '=', 'leq', 'neq', 'geq', 'alpha', 'beta', 'lambda', 'lt', 'gt', 'x', 'y'] from Kaggle's dataste

  • Normalization of symbols -> folder normalized

    • Removing the border

    • Scale to at most 40 × 40

    • Center the mass in a 48 × 48 image

    • Subtract mean and divide by standard deviation

  • Combining symbols to easy formula -> folder formulas

• Generate sequences

  • Available files: source

    • train_images_std.npy

    • train_images_mean.npy

    • Latex/Latex.py

    • Seq2SeqModel/Seq2SeqModel.py

  • Generate latex sequences from filenames using Sequence-to-sequence model -> output files: oseq_n.npy, iseq_n.npy, files.json

-> output files: drive

• Train and test the seq2seq model: https://github.com/Wikunia/HE2LaTeX/blob/master/Seq2Seq.ipynb -> Accuracy on test set ~ 62%

• To be continue