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History
- Received September 26, 2017
- Revision received December 8, 2017
- Accepted December 11, 2017
- Published online December 18, 2017.
Copyright & Usage
Copyright © 2017 Ikegami and Ganesh This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
Author Information
- 1Center for Information and Neural Networks, National Institute of Information and Communications Technology, 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
- 2CNRS-AIST JRL (Joint Robotics Laboratory), UMI3218/CRT, Intelligent Systems Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
- 3Brain Information Communication Research Laboratory Group, ATR, 2-2-2 Hikaridai, Kyoto 619-0288, Japan Seika-Cho, Soraku-gun
- Correspondence should be addressed to T. Ikegami, Center for Information and Neural Networks, National Institute of Information and Communications Technology, 1-4 Yamadaoka, Suita city, Osaka, 565-0871, Japan. E-mail: ikegami244{at}gmail.com.
Author contributions
Author contributions: T.I and G.G. designed the experiment, collected and analyzed the data, made the figures, and wrote the paper. Both authors reviewed the manuscript.
Disclosures
The authors declare no competing financial interests.
This work was partially supported by JSPS KAKENHI Grant #16H05916 and 26120003 (to T.I.) and #13380602 (to G.G.).
Funding
Japan Society for the Promotion of Science (JSPS)
16H05916; 26120003; 13380602
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