

AI by Hand ✍️ Seminar: Foundation (AI Eval)
Registration
Past Event
About Event
In 2026, I’ve made a personal commitment to teach one live AI seminar every week by hand ✍️.
Foundation: intuition, math, and mental models of core AI concepts, for beginners.
Frontier: research papers, algorithm, and architectures used by frontier models, for advanced AI engineers and researchers.
Live attendance is free.
The recordings and Excel workbooks are available for members of the AI by Hand Academy.
This Week's Agenda:
Guest Expert
Ofer Mendelevitch (Vectara)
Foundation
AI Eval Metrics
Perplexity
Cross-Entropy Loss
Negative Log-Likelihood (NLL)
KL Divergence
Accuracy
Precision, Recall, F1
BERTScore
BLEU
UMBRELA
ROUGE
This seminar is sponsored by Vectara.
Previous Seminars:
AI by Hand ✍️ Seminar: Foundation (TPU) → Frontier (GDPO)
AI by Hand ✍️ Seminar: Foundation (Attention) → Frontier (SLM)
AI by Hand ✍️ Seminar: Foundation (Gen AI) → Frontier (mHC)