441970
Description
Mind Map by Steve Hiscock, updated more than 1 year ago
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Created by Steve Hiscock
about 12 years ago
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Sampling
- Simple Random Sample
- Seed number. The chance of selection is equal
- Elements selected independently
- Elements selected independently
- Seed number. The chance of selection is equal
- Systematic
- Taking every nth observation
- Taking every nth observation
- Take the first n examples
- Stratified - Classifying
the data, and taking
random samples
- Unbalanced stratified
- Taking a random sample, from each class not proportional to the class sizes
- Taking a random sample, from each class not proportional to the class sizes
- Unbalanced stratified
- Overfitting
- Perfect fits to the data,
when its like in reality unlike
to be perfect
- Perfect fits to the data,
when its like in reality unlike
to be perfect
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