Create README.md

README.md

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+---
+language:
+- fr
+license: apache-2.0
+size_categories:
+- 1M<n<10M
+task_categories:
+- text2text-generation
+tags:
+- postocr
+- ocr
+dataset_info:
+  features:
+  - name: input
+    dtype: string
+  - name: output
+    dtype: string
+  splits:
+  - name: train
+    num_bytes: 8945325563
+    num_examples: 2101890
+  download_size: 4113768600
+  dataset_size: 8945325563
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*
+---
+# Synthetic OCR Correction Dataset <700 input length
+This dataset is a synthetic dataset generated for post-OCR correction tasks. It contains over 1,000,000 rows of French text pairs and follows the Croissant format. It is designed to train small language models (LLMs) for text correction.
+
+## Description
+To ensure the dataset closely resembles OCR-malformed texts, we applied various transformations randomly. This approach helps avoid the LLM identifying specific patterns and encourages it to select the correct word based on the surrounding context. Below are some of the transformations applied:
+
+```bash
+alterations = [
+    lambda x: re.sub(r'[aeiouAEIOU]', '', x),  # Remove vowels
+    lambda x: re.sub(r'\s+', ' ', x),          # Replace multiple spaces with a single space
+    lambda x: re.sub(r'\b\w\b', '', x),        # Remove single letters
+    lambda x: re.sub(r'[^\w\s]', '', x),       # Remove punctuation
+    lambda x: ''.join(random.choice((char, '')) for char in x),  # Randomly drop characters
+    lambda x: ' '.join([
+        ''.join(random.sample(word, len(word))) if random.random() < X else word  # Scramble words with X% probability
+        for word in x.split()
+    ])  # Randomly scramble words
+]
+```
+
+In addition to the transformations listed above, we also modify punctuation, add words, and create repetitions. Feel free to customize these transformations as needed.
+
+## Recipe
+Each word in the text has a 60% chance of being selected for alteration.
+A random number of alterations is applied to the selected words.
+In this release, between 30% and 60% of the words in each text can be altered.
+We welcome community feedback to improve this dataset further. Please feel free to share your thoughts or suggestions!
+
+
+
+