HG-Bench: A Benchmark for Multi-Page Handwritten Answer-Region Grounding in Automated Homework Assessment
Researchers introduce HG-Bench, a benchmark dataset of 500 annotated homework samples for evaluating automated grading systems' ability to locate and decompose handwritten student answers across multiple pages. Current AI models, including frontier VLMs, achieve less than 55% accuracy on complete answer localization, revealing a significant capability gap in understanding spatial reasoning structures in handwritten documents.