Rist Kaggle Team

A team of multiple award-winning, world-class Kagglers.
With so many experts here at Rist, we adopted a system that allows for participation in Kaggle activities during work, based on the performance in Kaggle competitions. These Kaggle competitions lead to the improvement of the data analysis team, and of Rist as a whole, and enable us to grow a deeper understanding and appreciation of our customers.

MEMBERS

  • Kazuki Onodera

    Kaggle Grandmaster

    Rist Data Analysis Team AdvisorKazuki Onodera

    Worked on development of core banking systems after graduating from university. Following this, he helped develop an auditing model for financial institutions, while at the same time winning the runner-up prize in the KDD Cup 2015 data-mining contest hosted by ACM/KDD in 2015. In 2017, he would also win the runner-up prize for Kaggle’s Instacart Market Basket Analysis. Currently involved in development of RAPIDS as a Senior Deep Learning Data Scientist at Nvidia, and contributes as a practical business advisor at Rist to further advance the technical skills of the Kaggle team.

  • Hirokazu Takoi

    Kaggle Grandmaster

    Hirokazu Takoi

    Joined Rist in March 2020. He is experienced in data analysis for a wide range of industries, including finance, online commerce, manufacturing, and more. He is a passionate participant in a variety of data analysis competitions both within Japan and abroad and
    He won a championship or being a runner-up,respectively.He currently develops predictive models via the Deep Analytics data analysis service.Promoted to Kaggle Grandmaster in August 2021.

  • Chen Jian

    Kaggle Grandmaster

    Chen Jian

    Joined Rist in April 2020. He has accumulated experience over a wide variety of data analysis competitions.Winner of the Kaggle competition "Sartorius - Cell Instance Segmentation" in January 2022 and "HuBMAP - Hacking the Human Vasculature" in August 2023.He is currently involved with the R&D for imaging AI systems centered on manufacturing.
    Promoted to Kaggle Grandmaster in October 2021.

  • Satoshi Mifune

    Kaggle Grandmaster

    Satoshi Mifune

    Joined Rist in February 2020. He took part in a wide variety of data analysis competitions during his previous position as a system developer. Runner-up in the 2019 SIGNATE Competition for “Iida Sangyo – Land Sale Price Prediction”, as well as grand prize winner of the CA x atmaCup, hosted by atma Co., Ltd. He currently develops predictive models via the Deep Analytics data analysis service.Promoted to Kaggle Grandmaster in November2022.

  • Keiichiro Ishi

    Kaggle Grandmaster

    Keiichiro Ishi

    Joined Rist in May 2021. After graduating from graduate school, he engaged in research and development of MRI sequences at a medical device manufacturer. After that, he was responsible of setting up a machine learning group at a printing press maker. He is currently involved in research and development of image-based AI systems centered on the manufacturing industry.
    Promoted to Kaggle Grandmaster in March 2023.

  • Kohei Ozaki

    Kaggle Grandmaster

    Kohei Ozaki

    D. program at Nara Institute of Science and Technology (NAIST) in 2014 with credits. He has experience in data analysis and research and development in various business areas including insurance, finance, and advertising. He has been active in numerous contests, starting with the KDD Cup 2015, in which he participated as a team. He is the author of the book "Kaggle ni idomu Deep Learning Programming no Gokui" (The Art of Deep Learning Programming for Kaggle) (Kodansha, co-authored).

  • Taiki Yamaguchi

    Kaggle Grandmaster

    Taiki Yamaguchi

    Joined Rist in May 2024. In 2020, He completed his master's degree at Tokyo University, specializing in particle physics. After graduating, he worked at an AI venture, developing products that provide simulators using deep learning models and analyzing data in various fields. He was promoted to Kaggle Grandmaster in 2021. As of May 2024, he has won first place twice and second place three times in Kaggle competitions. In 2023, he earned seven gold medals in a single year. Currently, he is engaged in research and product development, focusing on image AI technology in the manufacturing industry.

  • Yusuke Fujimoto

    Kaggle Master

    Yusuke Fujimoto

    Joined Rist in May 2020. He worked on the development of financial systems before going on to work as a research assistant in personal information anonymization and in database performance tuning. In his previous position, he managed the R&D of medical imaging AI. He is currently involved with the R&D for imaging AI systems centered on manufacturing.

  • Koki Nikaido

    Kaggle Master

    Koki Nikaido

    Joined Rist in September 2022. After graduating from university, he worked in software development for consumer cameras. In his previous job, he was in charge of data analysis/model development for sound such as anomalous sound detection. He currently develops predictive models via the Deep Analytics data analysis service.

  • Hiroyuki Kambe

    Kaggle Master

    Hiroyuki Kambe

    Joined Rist in November 2022. After graduating from graduate school, he worked on projects and R&D related to natural language processing at a SIer company and an AI startup company.
    He has experience in AI projects such as recommendation systems, information extraction from unstructured text, and automatic scoring of written questions.
    In 2021, he was a runner-up in Kaggle's chaii - Hindi and Tamil Question Answering.
    Currently, he is involved in image-based projects and RPipe-Image development, mainly in the manufacturing industry.

  • Shu Zhi Liu

    Kaggle Master

    Shu Zhi Liu

    He joined Rist in April 2021. During his college years, he was interested in developing image-based AI systems and participated in various projects as an intern at Rist. After graduation, he officially joined Rist and worked mainly in the field of robotics AI and reinforcement learning. Currently, he is involved in research and development of image-based AI systems with a focus on supporting the environmental sector of the manufacturing industry.
    Promoted to Kaggle Master in March 2023 and joined the Rist Kaggle Team.
    Translated with www.DeepL.com/Translator (free version)

  • Katsuya Takenouchi

    Kaggle Master

    Katsuya Takenouchi

    Joined Rist in February 2022. Experienced development of various image-based AI systems at Rist as an intern during his college years. After graduating from college, he worked in application development and data analysis for EC. At his previous job, he was in charge of building sales forecasting models. Currently, he is engaged in research and development of image-based AI systems mainly for the manufacturing industry.
    Promoted to Kaggle Master in March 2023 and joined the Rist Kaggle Team.
    Translated with www.DeepL.com/Translator (free version)


There are many more Kaggle Experts in the team, with each of them continuing to improve their skills through a combination of participating in their daily work, competitions, and workshops.

Achievement

  • Total 132
  • Gold 66
  • Silver 47
  • Bronze 19

*The medals are all for Kaggle competitions, and show the total number of medals held by each member of the Rist Kaggle Team.

  • May 2024

    Kaggle Grandmaster Takoi win the gold medal in Kaggle Competition"Enefit - Predict Energy Behavior of Prosumers"; KaggleMaster Nikaido win the silver medal.

  • April 2024

    Kaggle Grandmaster Chen wins the gold medal in Kaggle Competition"The Learning Agency Lab - PII Data Detection"; Team by Kaggle Grandmaster Takoi and Kaggle Master Kanbe wins the bronze medal.

  • April 2024

    Kaggle Grandmaster Ishi,Kaggle Master Nikaido and Tsuji wins the gold medal in Kaggle Competition"HMS - Harmful Brain Activity Classification"; Kaggle Grandmaster Takoi win the silver medal,Team by Kaggle Master Liu and Kaggle Master takenouchi wins the silver medal.

  • February 2024

    Kaggle Master Liu win the gold medal in Kaggle Competition"SenNet + HOA - Hacking the Human Vasculature in 3D";Team by Kaggle Grandmaster Onodera, Kaggle Grandmaster Ozaki and Kaggle Master Fujimoto wins silver medal ; Kaggle Master Takenouchi win the bronze medal.

  • January 2024

    Kaggle Grandmaster Chen,Kaggle Master Liu and takenouchi wins the gold medal in Kaggle Competition"UBC Ovarian Cancer Subtype Classification and Outlier Detection (UBC-OCEAN)".

  • December 2023

    Team Participating in Kaggle Grandmaster Onodera win the gold medal in Kaggle Competition"Stanford Ribonanza RNA Folding".

  • December 2023

    Team Participating in Kaggle Grandmaster Mifune win the gold medal in Kaggle Competition"Child Mind Institute - Detect Sleep States";Kaggle Grandmaster Takoi and Ozaki win the silver medal ;Team by Onodera and Ishi win the silver medal ;Team Participating in Kaggle Master Nikaido wins silver medal.

  • October 2023

    Kaggle Grandmaster Onodera,Kaggle Grandmaster Ozaki and Kaggle Master Nikaido wins the silver medal in Kaggle Competition "Bengali.AI Speech Recognition".

  • October 2023

    Kaggle Master Liu and takenouchi wins the gold medal in Kaggle Competition"RSNA 2023 Abdominal Trauma Detection"; Kaggle Grandmaster Ishi win the silver medal

  • October 2023

    Kaggle Grandmaster Takoi win the gold medal in Kaggle Competition"CommonLit – Evaluate Student Summaries";Kaggle Grandmaster Ozaki win the silver medal ;Team Participating in Kaggle master Kanbe wins silver medal.

  • August 2023

    Kaggle Grandmaster Takoi win the silver medal in Kaggle Competition"ICR - Identifying Age-Related Conditions".

  • August 2023

    Kaggle Grandmaster Chen win the gold medal in Kaggle Competition”Google Research - Identify Contrails to Reduce Global Warming” ,Kaggle Grandmaster Onodera and Ishi win the silver medal.

  • August 2023

    Kaggle Grandmaster Chen win runner up in Kaggle Competition"HuBMAP - Hacking the Human Vasculature" ,Kaggle Master Liu and Takenouchi win the silver medal and Kaggle Master Fujimoto win the bronze medal.

  • July 2023

    Kaggle Grandmaster Takoi win the gold medal in Kaggle Competition"Predict Student Performance from Game Play".

  • June 2023

    Kaggle Grandmaster Ishi &Kaggle Master Takenouchi and liu win the silver medal in Kaggle Competition"Benetech - Making Graphs Accessible".

  • June 2023

    Kaggle Grandmaster Ozaki win the gold medal in Kaggle Competition"Image Matching Challenge 2023".

  • June 2023

    The team including Kaggle Grandmaster Hirokazu Takoi wins the runner-up prize in Kaggle Competition "Parkinson’s Freezing of Gait Prediction".
    The team including Kaggle Master Nikaido win the silver medal.

  • May 2023

    Kaggle Master Nikaido win the silver medal in Kaggle Competition"BirdCLEF 2023".

  • April 2023

    Kaggle Grandmaster Mifune win the Gold medal in Kaggle Competition"March Machine Learning Mania 2023".

  • March 2023

    Kaggle Grandmaster Takoi win the silver medal in Kaggle Competition"Learning Equality - Curriculum Recommendations".
    Kaggle Grandmaster Ozaki and Kaggle Master Kanbe win the bronze medal.

  • March 2023

    The team including Kaggle Master Nikaido wins Gold Medal in Kaggle Competition "1st and Future - Player Contact Detection"; Team Participating in Kaggle Grandmaster Onodera wins Silver Medal

  • March 2023

    Liu and takenouchi wins the runner-up prize in "RSNA Screening Mammography Breast Cancer Detection"; Team Participating in Kaggle Grandmaster Ishi Wins Gold Medal

  • February 2023

    Kaggle Grandmaster Onodera wins the runner-up prize in "OTTO – Multi-Objective Recommender System"; Team Participating in Kaggle Grandmaster Takoi Wins Silver Medal

  • December 2022

    Kaggle Grandmaster Takoi Wins Solo Gold Medal in Kaggle Competition "Feedback Prize - English Language Learning"; Team Participating in Kaggle Master Kambe Wins Gold Medal

  • November 2022

    Mifune wins solo gold medal in "Open Problems - Multimodal Single-Cell Integration" and is promoted to Kaggle Grandmaster.

  • August 2022

    Kaggle Grandmaster Chen's team wins gold medal in the "Feedback Prize - Predicting Effective Arguments".

  • July 2022

    Kaggle Grandmaster Takumi Okoshi and Kaggle Grandmaster Jian Chen and Kaggle Master Yusuke Fujimoto and Kaggle Master Keiichiro Ishi wins runner up in “UW-Madison GI Tract Image Segmentation”.

  • July 2022

    The team including Kaggle Grandmaster Hirokazu Takoi wins runner up in "Foursquare - Location Matching".

  • July 2022

    The team including Kaggle Grandmaster Kazuki Onodera wins the gold medal in "Foursquare - Location Matching".

  • July 2022

    Kaggle Master Satoshi Mifune wins a silver medal in "Foursquare - Location Matching".

  • July 2022

    Kaggle Master Satoshi Mifune wins a silver medal in "Ubiquant Market Prediction".

  • May 2022

    The team including Kaggle Grandmaster Hirokazu Takoi wins the gold medal in "NBME – Score Clinical Patient Notes".

  • May 2022

    The team including Kaggle Grandmaster Kazuki Onodera wins the gold medal in "H&M Personalized Fashion Recommendations".

  • April 2022

    Kaggle Grandmaster Takumi Okoshi and Kaggle Grandmaster Jian Chen and Kaggle Master Keiichiro Ishi wins runner up in “Happywhale – Whale and Dolphin Identification”.

  • March 2022

    The team including Kaggle Grandmaster Hirokazu Takoi wins the gold medal in "Feedback Prize – Evaluating Student Writing".

  • March 2022

    Kaggle Grandmaster Jian Chen wins the gold medal in "Feedback Prize – Evaluating Student Writing".

  • January 2022

    Kaggle Grandmaster Kazuki Onodera and Kaggle Master Yusuke Fujimoto and Keiichiro Ishi wins a gold medal in "PetFinder.my – Pawpularity Contest".

  • December 2021

    Kaggle Grandmaster Takumi Okoshi and Jian Chen wins grand prize at "Sartorius – Cell Instance Segmentation".

  • November 2021

    Kaggle Grandmaster Hirokazu Takoi wins the gold medal in "Google Brain – Ventilator Pressure Prediction".

  • October 2021

    Kaggle Grandmaster Takumi Okoshi and Jian Chen wins a gold medal in "Google Landmark Retrieval 2021".

  • October 2021

    Kaggle Grandmaster Takumi Okoshi and Jian Chen wins a gold medal in "Google Landmark Recognition 2021".

  • August 2021

    Kaggle Grandmaster Hirokazu Takoi wins runner up in “CommonLit Readability Prize”.

  • July 2021

    Kaggle Master Keiichiro Ishi ranked 1st at the #11 atmaCup, followed by Kaggle Grandmaster Takumi Okoshi with the 3rd place.

  • May 2021

    Kaggle Master Jian Chen wins the gold medal in "HuBMAP – Hacking the Kidney".

  • May 2021

    Kaggle Master Satoshi Mifune and Kaggle Master Hirokazu Takoi wins a gold medal in "Indoor Location & Navigation".

  • May 2021

    Kaggle Grandmaster Kazuki Onodera wins a gold medal in "Human Protein Atlas – Single Cell Classification".

  • April 2021

    Kaggle Master Hirokazu Takoi wins a bronze medal in "March Machine Learning Mania 2021 - NCAAM".

  • February 2021

    Kaggle Master Jian Chen wins the gold medal in "Cassava Leaf Disease Classification".

  • January 2021

    Kaggle Master Hirokazu Takoi wins the gold medal in "Riiid! Answer Correctness Prediction".

  • December 2020

    Kaggle Master Satoshi Mifune wins the gold medal in "Google Research Football with Manchester City F.C."

  • November 2020

    Kaggle Grandmaster Takumi Okoshi won the #7 CA x atmaCup, Kaggle Master Hirokazu Takoi won the runner-up prize.

  • October 2020

    Kaggle Grandmaster Kazuki Onodera wins the runner-up prize in “OpenVaccine: COVID-19 mRNA Vaccine Degradation Prediction”.
    Kaggle Master Mifune Satoshi and Kaggle Master Hirokazu Takoi win a silver medal.

  • August 2020

    Kaggle Master Hirokazu Takoi wins a bronze medal in SIIM-ISIC Melanoma Classification.

  • July 2020

    The team including Kaggle Master Yusuke Fujimoto came in 1st out of 1,028 teams in the Prostate cANcer graDe Assessment (PANDA) Challenge.

  • July 2020

    Kaggle Master Chen Jian wins a silver medal in ALASKA2 Image Steganalysis.

  • June 2020

    Kaggle Grandmaster Kazuki Onodera wins runner up in “TReNDS Neuroimaging”.
    The team including Kaggle Master Takoi, Kaggle Master Mifune comes in 5th place, winning a gold medal.

  • June 2020

    Kaggle Master Hirokazu Takoi wins grand prize at atmaCup #5.

  • June 2020

    Kaggle Master Hirokazu Takoi wins a silver medal in M5 Forecasting – Accuracy.

  • June 2020

    Kaggle Expert Masato Umakoshi wins a bronze medal in Jigsaw Multilingual Toxic Comment Classification.

  • June 2020

    Kaggle Expert Masato Umakoshi wins a silver medal in Tweet Sentiment Extraction.

  • May 2020

    Kaggle Master Hirokazu Takoi wins a silver medal in University of Liverpool – Ion Switching.

About the Rist Kaggle Team System

The Rist Kaggle Team System is a system that lets each Rist Kaggle Team use their Rist work hours to join a Kaggle competition, up to a maximum amount of time calculated according to their internal Rist Kaggle Team rank.


Rist’s Internal Kaggle Team Rank

Points have been set up for each category based on indicators for Rank and Participation Type. Ranks are determined according to the number of points earned within a set period.

  1. Ranks (total of 5)
    1st Place, 2nd Place, 3rd Place, Gold, Silver
  2. Participation Type (total of 4)
    Solo, Internal Team (less than 3 people), Internal Team (less than 4), Internal Team*

* A team with one Rist or more employees and team members from another company.

RankConditions of EmploymentConditions for annual renewal (example)
RankSKaggle Work Ratio 50% Kaggle Grandmaster
  • Get third place or higher in a solo competition once
  • Win a competition with a 3-member or less internal team once
  • etc...
RankA+Kaggle Work Ratio 40%  
  • Get one gold medal with fourth place or lower in a solo competition
  • Win one competition and get runner-up in another competition with an internal team with 4 members of more
  • etc...
RankAKaggle Work Ratio 30% Kaggle Master
  • Get one gold medal with an internal team or team with employees from another company with four or more members
  • Earn at least 3 silver medals in solo or with a team
  • etc...

Activities

During routine internal workshops, team members work on past competition themes and share their knowledge.
Team members build up a diverse portfolio of industry expertise by participating in data analysis competitions and putting their imagination and passion to good use.

Formula for Calculating Kaggle Time

Monthly Kaggle time is calculated based on a ratio set by internal rank on the Kaggle team.

Rist work days/monthstandard hours (8 hr/day)
Work ratio based on Kaggle rank

Example: for 20 work days at Rist per month

We also provide support for GPU servers and other computing resources.