Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Matsutani Kanji and Kumano Masahito and Kimura Masahiro and Saito Kazumi and Ohara Kouzou and Motoda Hiroshi,Extracting Cooperative Structure among Online Items from Share-Event Sequence,Transactions of the Japanese Society for Artificial Intelligence,1346-0714,The Japanese Society for Artificial Intelligence,2018-05-01,33,3,A-HA1_1,https://cir.nii.ac.jp/crid/1390282680083270144,https://doi.org/10.1527/tjsai.a-ha1