Luca Zanussi

Latest storyA Forest of Questions, part 02

Teaching a tree to stop asking

A decision tree that never stops asking questions ends up memorizing its data. How do we tell it when to stop?

Read the story27 Oct 2026 · 3 min

Journey / A Forest of Questions / Part 01The tree that predictsHow can a tree help you guess how many ice creams you'll sell, given the weather?20 Oct 2026 · 5 min

Journey / Morocco 2026 / Part 02First impressions of another cultureWhat I was able to notice in my first days in Fez.13 Aug 2026 · 8 min

Journey / Morocco 2026 / Part 01On the persistence of memoriesThoughts before starting the journey, and about what to do to remember it.10 Aug 2026 · 3 min

Journeys

Routes told in parts over time, each with a start, an order, and an end I have not reached yet.

All 2 journeys

2 out · 8 coming · October 2026— · 3 roads

A Forest of Questions

How machines learn to predict, one yes-or-no question at a time: a single decision tree, then boosting, then random forests, all grown in your browser.

01The tree that predicts
02Teaching a tree to stop asking
03Many small trees · Not written yet

2 more roads, not written yet: Random forests, XGBoost

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2 out · 3 coming · 9–21 August 2026

Morocco 2026

A road trip in inland Morocco's cities and culture.

01On the persistence of memories
02First impressions of another culture
03What they tell you about the desert · Not written yet

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Areas

Six things I keep coming back to. An area is an interest, not a folder — a piece can sit in several.

All 2 areas

2 refsTravelExploring other cultures

3 refs · 1 journeyArtificial IntelligenceHow machines learn