Ethan Yan Xu

A technologist who is obsessed with programming, focuses on the development of environment-based software tools, and is passionate about spreading programming education.

Ethan Yan Xu

Technology & Projects

Bare Metal Bard, the hand-written CUDA SGEMM.
orgchem drawing both stereoisomers of a structure in three dimensions.
The FTC robot, with its vision camera above the control hub.
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Social Impact & Community

YanLearn analytics: weekly signups, enrollments, hours taught, and donations over time.
Presenting a cheque to the SickKids Foundation outside the Hospital for Sick Children.
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Open the portfolio as a PDF →

Research

The first page of the paper as published in the Columbia Junior Science Journal, volume 11.
At a Glance: 84.38% RMSE improvement, 0.0763 m autoregressive RMSE, 15+1 NOAA stations, four years of verified records, a 30 m DEM, and 22 engineered features.
Performance across all three regimes: the temporal-only LightGBM against the geospatial XGBoost on the validation split, at an unseen station one step ahead, and over a two-day autoregressive forecast.
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Hobbies

Conducting the Junior Concert Band at the Christmas concert.
Carrying a bag out to the range.
Playing badminton at the club, mid-stroke.
The Royal Canadian Air Cadet band in uniform, playing in formation.