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RIKEN Center for Advanced Intelligence Project Statistical Astrophysics Team

Team Director: Naoki Yoshida (Ph.D.)

Research Summary

Naoki Yoshida

We develop AI technologies that enable rapid analysis of massive datasets delivered from large telescopes and from physics experiments. We use modern machine learning methods and generative models to extract important signals hidden in noisy data, aiming to discover new celestial objects and phenomena, which may eventually lead to discovery of novel physical laws. We develop an innovative statistical model called “emulator”, which replaces costly nonlinear simulations with ultra-fast evaluation of physical quantities for statistical analysis.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Informatics
  • Astrophysics
  • Data science
  • Computational physics

Keywords

  • Numerical simulation
  • Baysean inference
  • Generative model

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1. *Moriwaki, K., Nishimichi, T., and Yoshida, N.
    "Machine Learning for Observational Cosmology"
    Reports on Progress in Physics, Volume 86, Issue 7, id.076901, 2023
  • 2. *Moriwaki, K. and Yoshida, N.
    "Deep-learning Reconstruction of Three-dimensional Galaxy Distributions with Intensity Mapping Observations"
    The Astrophysical Journal Letters, Volume 923, Issue 1, id.L7, 2021
  • 3. *Yoshikawa, K., Tanaka, S., and Yoshida, N.
    "A 400 Trillion-Grid Vlasov Simulation on Fugaku Supercomputer"
    Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis, November 2021, Article No.5
  • 4. *Miyamoto, K., Yamazaki, S., Uchida, F., Fujisawa, K., and Yoshida, N.
    "Quantum algorithm for the Vlasov simulation of the large-scale structure formation with massive neutrinos"
    Physical Review Ressearch, 6, 013200

Events

Lab Members

Principal investigator

Naoki Yoshida
Team Director

Contact Information

Nihonbashi 1-chome Mitsui Building, 15th floor,
1-4-1 Nihonbashi,
Chuo-ku, Tokyo
103-0027, Japan
Email: naoki.yoshida@riken.jp

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