Many users of Azure AI Document Intelligence experience challenges with the accuracy of data extraction. This article addresses a key reason for these challenges: the reliance on a singular model approach.
As businesses turn to AI for extracting data from documents, Azure AI Document Intelligence stands out as a preferred solution. It boasts an impressive mix of user-friendly features and sophisticated AI capabilities, tailored to accommodate a variety of data processing demands. However, the platform's versatility sometimes leads users to a common misunderstanding—that a single, all-encompassing model can meet all their needs.
In this article, we highlight the limitations of this approach and suggest an alternative within Azure AI Document Intelligence. Specifically, we'll advocate the advantages of developing custom models and the significance of tailoring these models to the specific types of documents being processed. We will also cover the role of classification models in improving the precision of data extraction.
The challenges posed by the singular model problem are significant. When dealing with diverse document types, such as contracts, invoices, and resumes, a one-size-fits-all approach struggles to maintain accuracy. In the next section, we’ll explore a practical design to address these issues effectively.
Our recommended design involves a shift towards a more composed approach, utilizing multiple custom extraction models and a classification model to enhance the accuracy and efficiency of document processing. Based on this, consider the following:
Use multiple extraction models for differing document structures: Train and deploy separate custom extraction models, each specifically designed for a particular type of document structure. This ensures that each model is highly optimized for its intended document type, improving accuracy in data extraction.
Create a classification model to determine extraction model route: Implement a custom classification model to serve as the initial layer of processing. This model categorizes documents based on their structure and content, ensuring that each document is routed to the most appropriate model for further processing.
Perform pre-processing techniques to optimize accuracy for multi-page documents: For documents consisting of multiple pages with diverse structures, divide them into smaller segments, each representing a distinct document type. Process each segment with the model best suited to its structure. This approach is particularly effective for composite documents that act more like collections of various document types rather than a single, uniform entity.
It is important to recognize that each of your document types require their own techniques for accurate data extraction. Azure AI Document Intelligence is a powerful AI tool to provide this capability, but it our experiences, alongside various ISVs and Digital Natives, revealed a critical insight: the pursuit of a singular, catch-all model falls short of expectations.
The key takeaway is to move beyond the one-model myth and embrace custom models tailored to the unique structures of your documents. By applying a practice of aligning document intelligence capabilities with the specific needs of your documents, this change can significantly enhance the accuracy of your data extraction with Azure AI Document Intelligence.
Thank you for taking the time to read this article. We are sharing our insights for ISVs and Digital Natives that enable document intelligence in their AI-powered solutions, based on real-world challenges we encounter. We invite you to continue your learning through our additional insights in this series.
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