About the Authors
- Maki Sakamoto
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* E-mail: sakamoto@inf.uec.ac.jp
Affiliation Department of Informatics and Engineering, The University of Electro-Communications, Tokyo, Japan
- Akira Utsumi
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Affiliation Department of Informatics and Engineering, The University of Electro-Communications, Tokyo, Japan
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: MS. Performed the experiments: MS. Analyzed the data: MS AU. Contributed reagents/materials/analysis tools: MS AU. Wrote the paper: MS.