| --- |
| license: openrail |
| task_categories: |
| - image-to-text |
| tags: |
| - ocr |
| - latex-ocr |
| - image2latex |
| dataset_info: |
| - config_name: cleaned_formulas |
| features: |
| - name: image |
| dtype: image |
| - name: latex_formula |
| dtype: string |
| splits: |
| - name: train |
| num_bytes: 2918992848.46 |
| num_examples: 552340 |
| download_size: 2778067493 |
| dataset_size: 2918992848.46 |
| - config_name: raw_formulas |
| features: |
| - name: latex_formula |
| dtype: string |
| splits: |
| - name: train |
| num_bytes: 240965616 |
| num_examples: 1006245 |
| download_size: 89507618 |
| dataset_size: 240965616 |
| configs: |
| - config_name: cleaned_formulas |
| data_files: |
| - split: train |
| path: cleaned_formulas/train-* |
| - config_name: raw_formulas |
| data_files: |
| - split: train |
| path: raw_formulas/train-* |
| --- |
| |
| # 𝑩𝑰𝑮 𝑵𝑬𝑾𝑺‼️ |
|
|
| 📮 [2025-08] We have updated to a larger dataset, which contains nearly 80 million samples, with significant improvements in both data quality and diversity. **[[link](https://huggingface.co/datasets/OleehyO/latex-formulas-80M)]** |
|
|
| 📮 [2024-02] We trained a formula recognition model, [𝐓𝐞𝐱𝐓𝐞𝐥𝐥𝐞𝐫](https://github.com/OleehyO/TexTeller?tab=readme-ov-file), using the latex-formulas dataset. It can convert LaTeX formulas into images and boasts **high accuracy** and **strong generalization capabilities**, covering **most formula recognition scenarios**. |
|
|
| > For more details, please refer to the [𝐓𝐞𝐱𝐓𝐞𝐥𝐥𝐞𝐫 GitHub repository](https://github.com/OleehyO/TexTeller?tab=readme-ov-file). |
|
|
| # Dataset Description |
| > [中文版本](./README_zh.md) |
|
|
| There are two datasets: **raw_formulas** and **cleaned_formulas**(This dataset has **550K formula-image pairs**). |
|
|
| We scraped approximately 1 million LaTeX formula image-text pairs from *arxiv* that were uncleaned and without text segmentation to create the *raw_formulas* dataset. After cleaning the *raw_formulas* dataset and integrating it with the [im2latex-100K](https://zenodo.org/records/56198#.V2px0jXT6eA) dataset, we obtained the *cleaned_formulas* dataset, which has **550K** formula-image pairs. |
|
|
| To render the images corresponding to the formulas, the following external packages are needed: |
| * amsmath |
| * amsfonts |
| * amssymb |
| * mathtools |
|
|
| ## Usage |
| for **raw_formulas** dataset: |
| |
| ```python |
| from datasets import load_dataset |
| data = load_dataset("OleehyO/latex-formulas", "raw_formulas") |
| ``` |
| |
| for **cleaned_formulas** dataset: |
| ```python |
| from datasets import load_dataset |
| data = load_dataset("OleehyO/latex-formulas", "cleaned_formulas") |
| ``` |
| |
| ## Details About the *raw_formulas* Dataset |
| We scraped LaTeX formulas containing the following environments: |
| * equation |
| * align |
| * align* |
| * gather |
| * gather* |
| |
| The formulas do not include the following content: |
| * \label |
| * % |
| * \quad |
| * \qquad |
| * \vspace |
| * \hspace |
| * \resizebox |
| * \scalebox |
| * \rotatebox |
| * \parbox |
| * \fbox |
| * \makebox |
| * \raisebox |
| * \addvspace |
| * \hfill |
| * \vfill |
| * \textwidth |
| * \textheight |
| * \rule |
| |
| ## Preprocessing Details of the *cleaned_formulas* Dataset |
| ### Cleaning |
| * We removed some useless junk data from both *raw_formulas* and [im2latex-100K](https://zenodo.org/records/56198#.V2px0jXT6eA). |
| * We deleted overly complex formulas from both *raw_formulas* and [im2latex-100K](https://zenodo.org/records/56198#.V2px0jXT6eA): |
| * Formulas were deleted if the aspect ratio of the corresponding rendered image was greater than 0.8. |
| * Formulas with a character length greater than 200 were deleted. |
| * In the formulas from both *raw_formulas* and [im2latex-100K](https://zenodo.org/records/56198#.V2px0jXT6eA), the following content was removed: |
| * \tag |
| * \text |
| * \begin{split} |
| * \end{split} |
| * \nonumber |
| * \notag |
| * The `equation`, `equation*`, `align`, `\[...\]` environments in *raw_formulas* were all replaced with the `align*` environment. |
| * We deleted formulas from *raw_formulas* that contained custom macros. |
| |
