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Tutorial: Build your first neural network from scratch

9 minute read

Published:

In this episode, we want to investigate a simple working neural network (NN) anatomically, without the use of any deep learning package. You might find it very interesting to design every single element that is essential to perform forward and backward propagation. Every piece of component can be put up together like playing a LEGO game!

LaTeX on Github Pages+minimal mistakes+MathJax

3 minute read

Published:

To have $\LaTeX$ equations on this website, which is run on Github Pages using Jekyll and AcademicPages (a fork of Minimal Mistakes), I had to make a few guesses, so here are the secrets.

music

HKGNA Concert

Concert, Jockey Club Auditorium, the Hong Kong Polytechnic University, 2023

Featured Music:

  • Borodin Polovetsian Dances from Prince Igor, Act II No. 8 & 17
  • Russo Street Music, Op. 65, 1st & 4th mvt
    Intermission
  • J. Williams Escapades for saxophone and orchestra
  • A. L. Webber The Phantom of the Opera (arranged by C.Cluster)

portfolio

publications

Adaptive debiased lasso in high-dimensional GLMs with streaming data

Published in submitted, 2024

Real-time learning from streaming data! We propose a one-pass, time- and memory-efficient method for high-dimensional GLMs—Adaptive Debiased Lasso (ADL)—that updates coefficients and standard errors on arrival via stochastic gradients with online debiasing.

Adaptive debiased lasso in high-dimensional GLMs with streaming data

Recommended citation: Han, R., Luo, L., Luo, Y., Lin, Y., & Huang, J. (2024). Adaptive debiased lasso in high-dimensional GLMs with streaming data. To submit.

Learning guarantee of reward modeling using deep neural networks

Published in KDD2026, 2025

Architecture‑dependent, non-asymptotic regret bounds that can be sharpened under a simple margin condition (when human preferences are more “clear” than you think).

Learning guarantee of reward modeling using deep neural networks

Recommended citation: Luo, Y., Ge, Y., Han, R. & Shen, G. (2025). Learning Guarantee of Reward Modeling Using Deep Neural Networks. arXiv preprint arXiv:2505.06601.

talks

teaching