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m.nexdata.datatang.com

1.58M Document OCR Dataset with Structured Analysis

document OCR dataset
document image OCR dataset
document understanding dataset
document layout analysis dataset
document structure dataset

This dataset contains 1,586,458 document data sets covering a wide range of Chinese-language materials, including Chinese textbooks, e-books, and teaching reference materials. The annotation files provide both OCR annotations and structured document analysis. The dataset is suitable for document OCR, document understanding tasks.

Paid Datasets
This is a paid datasets for commercial use, research purpose and more. Licensed ready made datasets help jump-start AI projects.
SpecificationsSpecifications
Data Size
1,586,458 sets, including 1466168 sets of basic analysis data, 15289 sets of precise standard analysis data, 5001 sets of precise analysis data, and 100000 sets of original manual documents.
Data Types
Analysis data (Chinese Textbooks, Chinese E-books, Chinese Teaching Reference Books, Chinese Journals), chinese original manual documents
Data Format
The original document file format is PDF, the document image file format is. png, the OCR annotation file format is JSON, and the structured parsing file format is markdown(Tables and formulas are in Latex format or screenshot links)
Sample Sample
Recommended DatasetsRecommended Dataset
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What types of OCR data does Nexdata provide?

Nexdata provides OCR datasets covering a wide range of data types, including documents, handwriting, invoices, test papers, and forms. The datasets cover diverse languages, layouts, text styles, and real-world scenarios to support OCR model training, text recognition, document analysis, and other document AI applications.

Can Nexdata customize OCR datasets for specific requirements?

Yes. If our off-the-shelf OCR datasets do not fully meet your requirements, Nexdata provides flexible custom data collection, annotation, and quality control services. We can customize datasets based on target languages, document types, handwriting styles, layouts, image conditions, data volume, and annotation specifications for specific OCR applications.

How does Nexdata ensure the quality and scalability of OCR datasets?

Nexdata applies multi-stage quality control throughout data collection, annotation, validation, and delivery. With extensive resources covering documents, handwriting, invoices, test papers, and forms, we can support both large-scale OCR projects and specialized datasets with customized formats, annotation requirements, and quality standards.

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