About the Authors

Eiichi Hoshino

Affiliations Department of Computational Intelligence and System Science, Tokyo Institute of Technology, Nagatsuta-cho, Midori-ku, Yokohama, Japan, Sony Computer Science Laboratories, Higashi-gotanda, Shinagawa-ku, Tokyo, Japan

Ken Mogi

kenmogi@qualia-manifesto.com

Affiliation Sony Computer Science Laboratories, Higashi-gotanda, Shinagawa-ku, Tokyo, Japan

Competing Interests

Sony Computer Science Laboratories provided support in the form of salaries for author K.M., but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of authors are articulated in the 'author contributions' section. The commercial affiliation of author K.M. with Sony Computer Science Laboratories does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: EH KM. Data curation: EH. Formal analysis: EH. Funding acquisition: EH KM. Investigation: EH. Methodology: EH. Project administration: KM. Resources: EH KM. Software: EH. Supervision: KM. Validation: EH KM. Visualization: EH. Writing – original draft: EH KM. Writing – review & editing: EH KM.