| domain | optimization |
| ---------------------------------- | --------------------------- |
| [[real]] / "[[continuous]]" | [[continuous optimization]] |
| finite / "[[power set\|discrete]]" | [[discrete optimization]] |
for [[machine learning]]:
| branch | "hypothesis class" / "architecture" |
| -------------------------- | ------------------------------------------ |
| [[unsupervised]] | [[statistical model]] |
| [[supervised]] | [[prediction rule\|prediction rule class]] |
| [[reinforcement learning]] | [[policy]] class |
see [[interpolate]]