28 lines
723 B
Markdown
28 lines
723 B
Markdown
# Downsampling the Training Data
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Downsampling is a very simple way to improve the efficiency of your evolutionary runs. It might allow for deeper evolutionary searches and a greater success rate.
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Using Downsampled-Lexicase selection with propeller is easy:
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Set the :parent-selection argument to :ds-lexicase as follows
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```clojure
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lein run -m propeller.problems.simple-regression :parent-selection :ds-lexicase <ARGS>
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```
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Arguments:
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- Case Downsampling function:
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- Random sampling (default)
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- Case tournament selection
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```clojure
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:ds-function :case-tournament
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```
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- Case Lexicase Selection
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WIP
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- Downsample Rate:
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```clojure
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:downsample-rate 0.1
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```
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