arXiv Computation and Language By Saifullah Saifullah, David Dembinsky, Stefan Agne, Andreas Dengel, Sheraz Ahmed

DocXEval: A Systematic Evaluation of Explainability in Multimodal Document Understanding

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DocXEval is the first comprehensive framework that adapts existing explainable AI methods and evaluation metrics to multimodal document understanding, covering text, layout, and image modalities. The authors systematically evaluate 13 XAI methods across 3 tasks, 8 datasets, 4 models, and 17 metrics, finding that Occlusion consistently performs best in faithfulness and interpretability. The study also provides meta‑evaluation insights, diagnostic analyses of modality contributions, spatial attribution patterns, and potential dataset biases, offering a benchmark and practical guide for future research.

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