Microscopes and machine learning: Azusa Tanaka revolutionizes Japanese book dating at UW
July 15, 2025
During her 2024-2025 research leave, Japan Studies Librarian Azusa Tanaka addressed a longstanding challenge in Japanese book history: dating premodern books (pre-1868) that lack publication dates. Traditional methods are often subjective or invasive, but Tanaka used a novel, non-invasive approach combining microscopic imaging and machine learning. Using a digital microscope, Tanaka captured over 13,000 images