About the Authors
- Sho Otsuka
-
* E-mail: otsuka.s@lab.ntt.co.jp
Affiliation NTT Communication Science Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan
- Minoru Tsuzaki
-
Affiliation Kyoto City University of Arts, 13-6 Kutsukake-cho, Oe, Nishikyo-ku, Kyoto 610-1197, Japan
- Junko Sonoda
-
Affiliation Kyoto City University of Arts, 13-6 Kutsukake-cho, Oe, Nishikyo-ku, Kyoto 610-1197, Japan
- Satomi Tanaka
-
Affiliation Kyoto City University of Arts, 13-6 Kutsukake-cho, Oe, Nishikyo-ku, Kyoto 610-1197, Japan
- Shigeto Furukawa
-
Affiliation NTT Communication Science Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan
Competing Interests
Shigeto Furukawa and Sho Otsuka are employed by a commercial company (NTT Corporation). There are no patents, products in development or marketed products to declare. The authors confirm that this does not alter their adherence to PLOS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: SO MT SF. Performed the experiments: SO MT JS ST SF. Analyzed the data: SO SF. Wrote the paper: SO SF MT.