Observed arrival · 2026-10-10
Would You Have Survived the Titanic?
A free, interactive introduction to machine learning that uses Titanic passenger records to teach decision trees, then invites you to test your own hypothetical survival prediction.
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●Pro
◎Niche
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ƒJS
- For
- Beginners learning decision trees without equations
- Worth noticing
- It fills 177 missing passenger ages with the median age of 28, treating data cleanup as part of the lesson.
Field notes
The lesson starts by contrasting hand-written programming rules with patterns learned from examples. It shows how candidate yes/no questions divide passengers into groups, then introduces Gini impurity as a way to compare those splits. The page also reports 62% correct guesses across all 891 records; the supplied evidence does not establish a separate test set.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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