Update README.md

README.md

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-license: cc-by-nc-nd-4.0
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+---
+license: cc-by-nc-nd-4.0
+---
+## Description
+204,522 Images - Test Paper VQA Data, covering multiple subjects, question types and collection devices (mobile phones, scanners), and the text was transcribed, and the formulas and tables were transcribed using latex format. This dataset can be used for tasks such as intelligent exam paper marking and homework tutoring. We strictly adhere to data protection regulations and privacy standards, ensuring the maintenance of user privacy and legal rights throughout the data collection, storage, and usage processes, our datasets are all GDPR, CCPA, PIPL complied.
+
+For more details, please refer to the link: https://www.nexdata.ai/datasets/llm/1574?source=huggingface
+
+## Specifications
+### Date Size
+
+204,522 question images
+
+### Image Resolution
+
+shorter side ≥ 30 pixels; 75% of images have resolution ≥ 300,000 pixels
+
+### Subject Coverage
+
+primary, middle, high school, university, and vocational education
+
+### Question Types
+
+multiple choice (single/multi-select), fill-in-the-blank, short answer, and extended response
+
+### Devices
+
+scanners and smartphones
+
+### Diversity
+
+covers multiple subjects and question types
+
+### Annotations
+
+bounding quadrilaterals and transcriptions for stems, options, answers, and associated diagrams.Note: question explanations are transcribed in JSON without bounding boxes.
+
+### Data Processing
+
+mathematical formulas transcribed in LaTeX
+
+### File Formats
+
+.jpg, .png, .json
+
+
+## Licensing Information
+Commercial License