Automatic tagging to geometric problems in Japanese mathematics based on image recognition (The study of the history of mathematics 2018)

In recent years, construction of databases from digitized documents of Japanese mathematics (wasan) has been progressing. We can search documents individually by keywords such as titles and authors in these databases. On the other hand, it is unable to cross-search them from contents such as problems in the documents. To realize this cross-searching based on problems, the authors propose a system to tag images of geometric problems in wasan automatically. In addition, the authors consider generating vector based on tags to evaluate the similarity of geometric problems.
"The study of the history of mathematics 2018". September 18-21, 2018. edited by Shigeru Jochi. The papers presented in this volume of RIMS Kôkyûroku Bessatsu are in final form and refereed.