CHAPTER 08 / 40
When Models Meet Data
3 lessons · Explore, experiment and understand.
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Empirical risk, generalization and the bias–variance trade-off explain why models that fit training data perfectly can still fail on new data — and how to fix it.
- train/test split
- regularization
- cross-validation
- Step 42~20m2Code · 15⚡Challenge
Data, Models, and Learning
The previous seven chapters built a mathematical toolbox. Chapter 8 turns the key and opens the door to machine learning proper. Three ingre…
Open lesson - Step 43~20m3D · 12Code · 25★Most cinematic⚡Challenge
Parameter Estimation (MLE and MAP)
Probabilistic models recast learning as parameter estimation. Assume the data is generated by — a family of distributions indexed by . Given…
Open lesson - Step 44~20m3D · 12Code · 15★Most cinematic⚡Challenge
Probabilistic Modeling and Model Selection
Once you accept a probabilistic view, every modeling decision — the functional form, the noise distribution, the prior — is a modeling assum…
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