About
This Site
Welcome to Hippocampus's Garden! My name is Shion Honda and I am the administrator of this blog. On this blog, I write about machine learning, statistics, programming, and sometimes my hobbies.
Author
I am a machine learning engineer at Recruit Co., Ltd.
I completed my M.S. in Information Science and Technology at the University of Tokyo.
Opinions presented here are my own and not the views of my employer.

See LinkedIn for my work experience and Google Scholar for publications.
News
- Dec 2022: The book "A Practical Guide to Developing Data Platforms" (original title: "[実践]データ活用システム開発ガイド"), which I co-authored, has been published.
- Dec 2021: I passed the Applied Information Technology Engineer Examination (a Japanese national certification).
- May 2021: The book "Python for Programmers by Deitel & Deitel", which I co-translated into Japanese, has been published.
- Apr 2020: Started working at Recruit Co., Ltd. in Tokyo.
- Mar 2020: Completed my Master's course at the University of Tokyo.
External Links
You may also like:- Qiita (all in Japanese). I used to write survey posts here. The topics are somewhat wide: system trading for cryptocurrencies, graph neural networks, deep reinforcement learning, deep generative models, etc.
- AI-SCHOLAR (all in Japanese). I contributed some introductory articles to a web media for non-experts in AI. Popular posts are on MuZero, XLNet, and NGBoost.
- Speaker Deck (all in Japanese) Here are some decks that I used in my talks and presentations.
- SlideShare (mostly in Japanese). More decks.
- Amazon Wish List. Just in case you want to buy me a book.