About Me

Naohiro TAWARA (Ph.D.) / 俵 直弘 (博士)

I am a Researcher at the Signal Processing Research Group, Media Information Laboratory, NTT Communication Science Laboratories, Kyoto, Japan.

I received B.S., M.S., and Ph.D. from Waseda University in Tokyo, Japan in 2010, 2012, and 2017. In 2016, I joined Waseda University where I served as a research assistant, assistant professor and then as a lecturer. Since 2019, I am now working as a research scientist at NTT Communication Science Laboratories.

I am a member of the Institute of Electrical and Electronics Engineering (IEEE), Institute of Electronics, Information and Communication Engineers (IEICE), Information Processing Society of Japan (IPSJ) and Acoustic Society of Japan (ASJ). I received the Awaya Prize Young Researcher Award from the ASJ in 2018 and Yamashita SIG Research Award from the IPSJ in 2019.

LinkedIn | Google Scholar | ResearchGate | dblp


Waseda University, Tokyo, Japan

Apr. 2012 - Mar. 2016
Ph.D. in Computer Science and Engineering
  • Research Topic: Fully Bayesian method for speaker recognition and clustering
  • Supervisor and chief examiner: Tetsunori Kobayashi
  • Sub-chief examiner: Tetsuji Ogawa, Yasuo Matsuyama (Waseda Univ.), Daichi Mochihashi (Institute of Statistical Mathematics)
Apr. 2010 - Mar. 2012
M.S. in Computer Science and Engineering
  • Research Topic: Markov Monte Carlo methods for speech processing
  • Supervisor: Tetsunori Kobayashi
Apr. 2006 - Mar. 2010
B.E. in Computer Science and Engineering
  • Research Topic: Computer vision for upper-body tracking
  • Supervisor: Tetsunori Kobayashi


Apr. 2019 - Present

NTT Communication Science Laboratories, Kyoto

Researcher Apr. 2020 - Present
Research associate Apr. 2019 - 2020
Apr. 2016 - Present

Waseda University, Tokyo

Visiting Researcher Apr. 2019 - Present
Lecturer Apr. 2018 - Mar. 2019
Assistant professor Apr. 2017 - Mar. 2018
Research associate Apr. 2016 - Mar. 2017
Oct. 2015 - Dec. 2015

Toyota Technological Institute at Chicago (TTIC)

Visiting students Oct. 2015 - Dec. 2015


Journal paper (peer-reviewed)

International conference (peer-reviewed)

Competitive research funding (KAKEN)



NTT Communication Science Laboratories
Media Information Laboratory,
Signal Processing Research Group,
2-4, Hikaridai, Seika-cho, "Keihanna Science City", Kyoto, 619-0237, Japan
naohiro (dot) tawara (dot) ex (at) hco.ntt.co.jp