About

Senior Data Scientist at Atrae, Inc., and VTubing as data science VTuber AIcia Solid.
PhD (Mathematical Science, the University of Tokyo)

Currently exploring research areas around diffusion models.
As AIcia Solid, I've uploaded 200+ lecture videos for AI, Data Science, and Mathematics.

Research & Publications

Proposal of Individual Equating Algorithm Using Survey Time Series Data (アンケート時系列データを用いた個人別等化アルゴリズムの提案)

Author: AIcia Solid

paper(pdf) - the annual conference of the virtual society 2024 conference paper (unreviewed) 🇯🇵 Japanese 2024

Patent 7633001 (Personalized Survey Analysis System Using IRT-HMM Integration for Work Engagement Measurement) (特許7633001)

Inventor: Satoshi Sugiyama

patent document - Japan Patent Office patent 🇯🇵 Japanese filed 2020 - granted 2024

Definition and Theoretical Analysis of New Information Transmission Efficiency in Organizational Network Analysis (組織ネットワーク分析における新しい情報伝達効率の定義とその理論解析)

Author: AIcia Solid

paper(pdf) - the annual conference of the virtual society 2023 conference paper (unreviewed) 🇯🇵 Japanese 2023

On the Phenomenon of "360° Rotation = -1 Times" in Spin Appearing in 4D Visualization Using VR (Spin における「360°回転 = -1倍」が VRを用いた4次元可視化で出現する現象について)

Author: AIcia Solid

paper(pdf) - the annual conference of the virtual society 2022 conference paper (unreviewed) 🇯🇵 Japanese 2022

On the Natural Emergence of Temperature Concept in Item Response Theory (項目反応理論における温度概念の自然な出現について)

Author: AIcia Solid

paper(pdf) - the annual conference of the virtual society 2020 conference paper (unreviewed) 🇯🇵 Japanese 2020

Fukaya categories in Koszul duality theory

Author: Satoshi Sugiyama

arXiv:1701.00429 2017

On the Fukaya-Seidel categories of surface Lefschetz fibrations

Author: Satoshi Sugiyama

arXiv:1607.02263 2016

Books

Calculus + Linear Algebra for Uncompromising Data Analysis (妥協しないデータ分析のための 微積分+線形代数入門)

Covers definitions, formulas, mathematical foundations, and applications

Introduction to Models for Data Science and AI (本質を捉えたデータ分析のための分析モデル入門)

Covers statistical models, machine learning, deep learning, reinforcement learning, and multivariate analysis

VTubing as AIcia Solid

Experience

Senior Data Scientist

2016.10 - Present

Atrae, Inc.

  • Founded the Data Science Team as the first Data Scientist
  • Managing the ML/DL Study Group since 2019 (hands-on, half-year course, ongoing)
  • Added statistical features to Wevox (Organization Empowering Platform)
  • Obtained patent (Patent 7633001)
  • Introducing MLOps to Green (Job-Hunting service) (ongoing)

Skills Definition Committee Member (スキル定義委員)

2019.09 - Present

Japan Data Scientist Society (データサイエンティスト協会)

  • Update the skill checklist for Data Scientists
  • Involved in the Data Scientist Certification program

Senior Project Researcher (SFC上席所員)

2019.04 - Present

Keio University, Shimazu Lab (慶應義塾大学 総合政策学部 島津明人研究室)

  • Research assistance (gathering survey subjects from company customers, etc.)

Education

Ph.D. in Mathematical Science

2017

the University of Tokyo

Mathematical Physics: Application of type A brane theory in superstring theory to the representation theory of finite dimensional algebra

  • Published research papers in mathematical physics and representation theory
  • Specialized in the intersection of string theory and algebraic structures

Previously, I received my B.S. and M.S. degrees in Mathematical Science at the University of Tokyo in 2012 and 2014 respectively.