Hariom Lohar — Lab Notebook No.01 · Blog & Daily Logs https://hariomlohardev.github.io/blog.html Daily AGI research logs and articles by Hariom Lohar (hariomlohardev) — Python, Django, Flutter, Harvard CS50P 2026. en-IN Mon, 10 Aug 2026 09:04:28 GMT Day 040 — Multi-Head, Residual & Layernorm by Hand https://hariomlohardev.github.io/blog/p/day-040-multi-head-residual/ https://hariomlohardev.github.io/blog/p/day-040-multi-head-residual/ Stacked 4-head attention + residual + layernorm forward/backward in NumPy — same mask, new choreography, grads checked at 1e-4. Sun, 09 Aug 2026 18:30:00 GMT daily-log Transformers attention NumPy Day 039 — Attention by Hand https://hariomlohardev.github.io/blog/p/day-039-attention-by-hand/ https://hariomlohardev.github.io/blog/p/day-039-attention-by-hand/ Derived scaled dot-product attention forward/backward in NumPy — QKᵀ, causal mask, softmax, and the gradient through it. Fri, 07 Aug 2026 18:30:00 GMT daily-log Transformers attention NumPy Spam Classifier Shipped — 5,572 Messages, Zero Mock https://hariomlohardev.github.io/blog/p/spam-classifier-shipped/ https://hariomlohardev.github.io/blog/p/spam-classifier-shipped/ Shipped a live Naive Bayes bench that tokenises, scores, and stamps P(spam|message) in your browser via Pyodide — nothing mocked. Tue, 04 Aug 2026 18:30:00 GMT article Naive Bayes NLP Pyodide ship Day 032 — CNN from Scratch, No Autograd https://hariomlohardev.github.io/blog/p/day-032-cnn-from-scratch/ https://hariomlohardev.github.io/blog/p/day-032-cnn-from-scratch/ Built 2D convolution forward + backward in pure NumPy — im2col, stride, padding, and the gradient that makes it learn. Fri, 31 Jul 2026 18:30:00 GMT daily-log CNN NumPy backprop Hello, Daily Logs — Day 001 https://hariomlohardev.github.io/blog/p/hello-daily-logs-day-001/ https://hariomlohardev.github.io/blog/p/hello-daily-logs-day-001/ Day 001 — why I chose the long road after 12th and how this public lab notebook works. Tue, 30 Jun 2026 18:30:00 GMT daily-log AGI first-principles