Copyright	(c) Fabricio Olivetti de Franca 2022
License	GPL-3
Maintainer	fabricio.olivetti@gmail.com
Stability	experimental
Portability	POSIX
Safe Haskell	Safe-Inferred

MachineLearning.TIR.Mutation

Description

Mutation operators.

Synopsis

toss :: Rnd Bool
randomChoice :: Rnd a -> Rnd a -> Rnd a
trd :: Pi -> [(Int, Int)]
countVars :: Sigma -> Int
applyMut :: MutationCfg -> Individual -> (MutationCfg -> TIR -> Rnd TIR) -> Rnd Individual
multiMut :: MutationCfg -> Individual -> Rnd Individual
insertNode :: MutationCfg -> TIR -> Rnd TIR
removeNode :: MutationCfg -> TIR -> Rnd TIR
changeVar :: MutationCfg -> TIR -> Rnd TIR
changeExponent :: MutationCfg -> TIR -> Rnd TIR
changeFun :: MutationCfg -> TIR -> Rnd TIR
replaceSubTree :: MutationCfg -> TIR -> Rnd TIR

Documentation

toss :: Rnd Bool Source #

randomChoice :: Rnd a -> Rnd a -> Rnd a Source #

trd :: Pi -> [(Int, Int)] Source #

countVars :: Sigma -> Int Source #

applyMut :: MutationCfg -> Individual -> (MutationCfg -> TIR -> Rnd TIR) -> Rnd Individual Source #

multiMut :: MutationCfg -> Individual -> Rnd Individual Source #

Multi-mutation, it applies one of the following mutations at random:

insertNode
removeNode
changeVar
changeExponent
changeFun

insertNode :: MutationCfg -> TIR -> Rnd TIR Source #

inserts a random node

removeNode :: MutationCfg -> TIR -> Rnd TIR Source #

removes a random node

changeVar :: MutationCfg -> TIR -> Rnd TIR Source #

changes the index of a random variable node.

changeExponent :: MutationCfg -> TIR -> Rnd TIR Source #

changes a random exponent.

changeFun :: MutationCfg -> TIR -> Rnd TIR Source #

changes a random transformation function.

replaceSubTree :: MutationCfg -> TIR -> Rnd TIR Source #

replaces a subtree at random (not yet implemented).