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.

  • Takumi Okoshi

    Kaggle Grandmaster

    Takumi Okoshi

    Joined Rist in November 2020. In 2019, he won the Kaggle PetFinder.my Adoption Prediction competition, as well as Naver AI RUSH 2019 and atmaCup #1, hosted by atma Co., Ltd. He is currently involved in the development of AI Pipeline to improve company-wide work efficiency.

  • 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. Outside of work, he is a passionate participant in a variety of data analysis competitions both within Japan and abroad. He won the grand prize at atmaCup #5 in June 2020. He currently develops predictive models via the Deep Analytics data analysis service.

  • Chen Jian

    Kaggle Grandmaster

    Chen Jian

    Joined Rist in April 2020. He has accumulated experience over a wide variety of data analysis competitions, winning the grand prize in the 2019 SIGNATE Competition for “Japan Tobacco – Tobacco Product Image Detection” as well as the “2nd AI Edge Contest” in 2020. He is currently involved with the R&D for imaging AI systems centered on manufacturing.

  • Yuichi Inoue

    Kaggle Grandmaster

    Yuichi Inoue

    Joined Rist as an intern in April 2019. While studying biological systems at the Graduate School of Pharmaceutical Sciences, Kyoto University, he has gained experience by actively participating in various data analysis competitions. He is engaged in research and development of image-based AI systems.

  • Satoshi Mifune

    Kaggle Master

    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.

  • 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.

  • Keiichiro Ishi

    Kaggle Master

    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.


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 100
  • Gold 35
  • Silver 42
  • Bronze 23

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

  • October 2021

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

  • October 2021

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

  • August 2021

    Kaggle Master Yuichi Inoue wins the gold medal in "SIIM-FISABIO-RSNA COVID-19 Detection"

  • 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 and Kaggle Master Inoue Yuichi 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 Master Yuichi Inoue wins a silver medal in “RSNA STR Pulmonary Embolism Detection Classify Pulmonary Embolism cases in chest CT scans”.

  • 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, and Intern Kaggle Expert Inoue 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.

  • December 2019

    Kaggle Expert Yuichi Inoue wins a bronze medal in ASHRAE – Great Energy Predictor III.

  • November 2019

    Student Cup 2019: Kaggle Expert Yuichi Inoue wins the Idea Award for Rental Property Rent Prediction.

  • October 2019

    Kaggle Expert Yuichi Inoue wins a gold medal in TAKEDA Pharmaceutical Company x SIGNATE.

  • September 2019

    Kaggle Expert Yuichi Inoue wins a bronze medal in Recursion Cellular Image Classification.

  • September 2019

    Kaggle Expert Yuichi Inoue wins a silver medal in APTOS 2019 Blindness Detection.

  • August 2019

    Kaggle Expert Yuichi Inoue wins a bronze medal in Generative Dog Images.

The Rist Kaggle Team System

The Rist Kaggle Team System allows members to participate in Kaggle activities based on individual Kaggle ranks, during work.


Kaggle Team Internal Ranking

kaggle ranking graph

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