How Do Document Parsers Break? Auditing Structural Vulnerability in Document Intelligence

Document Layout Analysis (DLA) pipelines are crucial for generating structured representations in document intelligence systems, yet their robustness evaluation has been limited. A new framework named ProSA has been proposed to address this issue by auditing structural vulnerabilities in document parsers, utilizing metrics such as Block-level Structural Loss Rate (B-SLR) and exposure descriptors to analyze failures in structural identity and their propagation across document layouts.

The introduction of ProSA is significant as it enhances the understanding of how document parsers can fail, which is essential for improving the reliability of document intelligence systems. By identifying specific vulnerabilities and their causes, this framework could lead to more resilient document processing technologies, ultimately benefiting applications in retrieval-augmented generation and long-document question answering.