** February 01, 2017 Publication [#y95fb51c] //> &ref(20150601_1.jpg,nolink); > February 01, 2017~ [[The article>https://www.jstage.jst.go.jp/article/ieiceissjournal/21/4/21_10/_pdf]] by Keiichi Tokuda was published in [[IEICE INFORMATION AND SYSTEMS SOCIETY JOURNAL>https://www.jstage.jst.go.jp/browse/ieiceissjournal/21/4/_contents]] [[The article>https://www.jstage.jst.go.jp/article/ieiceissjournal/21/4/21_10/_pdf]] by Keiichi Tokuda was published in [[IEICE INFORMATION AND SYSTEMS SOCIETY JOURNAL>https://www.jstage.jst.go.jp/browse/ieiceissjournal/21/4/_contents]]. > by Natsumi Koike