Nelson Yalta

3-4-1 · Ohkubo, Shunjuku, Tokyo, 169-8555 · (+81) 070-4066-0339 ·

I am a Ph.D. Student at Waseda University, Tokyo, Japan. I received my B.S. degree in 2009 at Antenor Orrego Private University (UPAO), Trujillo, Peru and received my M.S. degree in 2015 at Waseda University.
I am currently a research student at the Laboratory for Intelligent Dynamics and Representation (advisor: Tetsuya Ogata). I am an adaptable and responsible doctoral student seeking a researcher-level position in public or private companies who will employ the problem-solving, team leading, and critical thinking skills developed through my studies in Waseda University and part-time work during vacations.
My research insterrest includes signal processing, machine learning, deep learning, speech and spoken language processing and robotics.


Information Technology Coordinator

Hilton Tokyo Bay

Part-Time employer who perform both technical and administrative tasks to ensure functionality and efficiency of computer and server systems of the company

September 2016 - July 2017

Operation Supervisor

Garcia E.I.R.L.

Engineer in charge of the installation and setting up of the telemetric, automation, instrumentation projects, where the company provides support, such as Mining Companies.

January 2013 - August 2013

Electric Operator

Garcia E.I.R.L.

Engineer in charge of the electrical installation and setting up of the UCB and PIT projects in GOLD FIELDS Mining Companies.

May 2012 - December 2012


I.E.S.T.Public “Peru –Japan

Teacher of the Technologic Institute “Peru –Japan”, in charge to provide classes to the Electronic, Computer and Research Areas.

March 2011 - December 2011


Waseda University (早稲田大学)

Doctoral Course Student
Graduate School of Fundamental Science and Engineering (基幹理工学研究科表現工学専攻)
April 2017 - March 2020

Waseda University (早稲田大学)

Doctoral Course Student
Graduate Program for Embodiment Informatics
April 2015 - March 2020

Waseda University (早稲田大学)

Master of Engineering
Graduate School of Fundamental Science and Engineering (基幹理工学研究科表現工学専攻)
April 2015 - March 2017

Universidad Privada Antenor Orrego (UPAO)

Bachelor of Electronic Engineering
Department of Engineering
April 2004 - March 2009


  • Jorge Luis Gonzalez, Nelson Yalta, "Procesamiento Digital de Senales implementando HPRC (Digital Signal Processing implementing HPRC)," Bachelor Degree (Feb. 2009)

Journal (Referred) | Peer-Reviewed
  • Nelson Yalta, Kazuhiro Nakadai, and Tetsuya Ogata, "Sound Source Localization Using Deep Learning Models," JRM Vol.29 No.1 (Feb. 20, 2017)

International Conference and Workshop (refereed) | Peer-Reviewed
  • Nelson Yalta, Shinji Watanabe, Kazuhiro Nakadai and Tetsuya Ogata, "Weakly-Supervised Deep Recurrent Neural Networks for Basic Dance Step Generation," IJCNN'19 (accepted), arXiv
  • Jaejin Cho, Murali Karthick Baskar, Ruizhi Li, Matthew Wiesner, Sri Harish Mallidi, Nelson Yalta, Martin Karafiat, Shinji Watanabe and Takaaki Hori, "Multilingual sequence-to-sequence speech recognition: architecture, transfer learning, and language modeling," Proc. SLT'18 (accepted), arXiv, IEEEXplore
  • Naoyuki Kanda, Rintaro Ikeshita, Shota Horiguchi, Yusuke Fujita, Kenji Nagamatsu, Xiaofei Wang, Vimal Manohar, Nelson Enrique Yalta Soplin, Matthew Maciejewski, Szu-Jui Chen, Aswin Shanmugam Subramanian, Ruizhi Li, Zhiqi Wang, Jason Naradowsky, L Paola Garcia-Perera, Gregory Sell, "The Hitachi/JHU CHiME-5 system: Advances in speech recognition for everyday home environments using multiple microphone arrays," The 5th International Workshop on Speech Processing in Everyday Environments (CHiME 2018), Interspeech'18, CHiME-5
  • Shinji Watanabe, Takaaki Hori, Shigeki Karita, Tomoki Hayashi, Jiro Nishitoba, Yuya Unno, Nelson Enrique Yalta Soplin, Jahn Heymann, Matthew Wiesner, Nanxin Chen, Adithya Renduchintala and Tsubasa Ochiai, "ESPnet: End-to-End Speech Processing Toolkit," Proc. Interspeech'18 (accepted), arXiv, ISCA-Speech

Domestic Conference and Publications
  • Nelson Yalta, Shinji Watanabe, Takaaki Hori, Kazuhiro Nakadai, Tetsuya Ogata, "CNN-based MultiChannel End-to-End Speech Recognition for everyday home environments," on arXiv, November 2018.
  • Nelson Yalta, Kazuhiro Nakadai, Tetsuya Ogata, "Sequential Deep Learning for Dancing Motion Generation," SIG-Challenge 2016


Programming Languages & Tools
  • Mobile-First, Responsive Design
  • Cross Functional Teams
  • Agile Development & Scrum


Apart from being a research student, I enjoy my time being outdoors. In the winter, I am a novice skiier. During the warmer months, I enjoy biking and traveling.

When forced indoors, I follow a number of animes, manga. Also sci-fi, animated and fantasy genre movies and television shows, I am an aspiring chef, and I spend a large amount of my free time exploring the latest technolgy advancements.

Awards & Certifications

  • MEXT Scholarship