Concept - Bootstrapping

Sampling with replacement (s.351). From an initial dataset (slide example: items 1-12), draw bootstrap samples of a fixed size (slide: size 5), e.g. [1, 10, 3, 8, 3], [4, 2, 11, 9, 3], …, [5, 12, 1, 5, 6]. Items can repeat within a sample and some are left out.

	With replacement	Without replacement
Drawn unit	put back into the population	removed from the population
Used for	bootstrap samples in Concept - Bagging	ordinary simple random sample

Related

Concept - Bagging | Concept - Random Forest

Source chunk: 03 Text Classification - Chunk 12 (s.331-360)