● mastered · kind concept · level 3 · 10h

The objective the optimiser minimises — MSE for regression, cross-entropy for classification. Choosing it encodes what ‘wrong’ means.

In computability theory, a primitive recursive function is, roughly speaking, a function that can be computed by a computer program whose loops are all “for” loops. Primitive recursive functions form a strict subset of those general recursive functions that are also total functions.

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