NeurIPS - Ariel Data Challenge 2025 Review
7th place. First gold medal.
IceCube - Neutrinos in Deep Ice
The top 3% of all participating teams globally. First Silver Medal. My story in the competition.
First time with the astronomical telescope.
Try to calibrate astronomical telescopes and make observations of Jupiter and Saturn.
Engineering Innovation competition -- 1 place in Shanghai
A rare team competition, an interesting experience.
Finite Difference Analysis (FDA) and cosine_similarity
Using a custom lgbm loss as the example, how finite differences approximate the gradient and Hessian.