Avatamsaka Game Experiment as a Nonlinear Polya Urn Process. - Yuji Aruka (JSAI Workshops, 2001)

Guest Editors' Introduction. - Akira Namatame; Yuji Aruka (Adv. Complex Syst., 2003)

Proceedings in Adaptation, Learning and Optimization. - Masao Kubo; Hiroshi Sato; Akihiro Yamaguchi; Yuji Aruka (IES, 2016)

Detection of changes in the employment environment in Japan based on the numbers of people leaving and entering employment using NMF. - Masao Kubo; Hiroshi Sato; Akihiro Yamaguchi; Yuji Aruka (J. Robotics Netw. Artif. Life, 2017)

The Rise of Smart Contract and Its Complex Impacts on the Digital Ecosystem. - Yuji Aruka (IES, 2019)