Here is a list of technical papers and conferences related to manga.
The Mangaki Data Challenge is out (as you can see on every page on this website). Subscribe and get a the dataset (350k ratings).
MANPU community has annotated manga illustrations.
Saito, Masaki, and Yusuke Matsui. “Illustration2vec: a semantic vector representation of illustrations.” SIGGRAPH Asia 2015 Technical Briefs. ACM, 2015.
PaintsChainer, by Preferred Networks (implementation using Chainer)
Anime Manga Symposium.
Early July, Anime Expo, Los Angeles, US.
MANPU 2017: The Second International Workshop on
coMics ANalysis, Processing and Understanding.
November 10, 2017 at the Kyoto Manga Museum.