Copyright	(c) Leon Medvinsky, 2015
License	GPL-3
Maintainer	lmedvinsky@hotmail.com
Stability	experimental
Portability	portable
Safe Haskell	Safe-Inferred
Language	Haskell2010

Neet.Parameters

Description

Synopsis

Documentation

data Parameters Source

The genetic parameters

Constructors

Parameters
Fields mutParams :: MutParams mutParamsS :: MutParams Mutation parameters for small populations largeSize :: Int The minimum size for a species to be considered large specParams :: SpeciesParams Parameters for the distance function dropTime :: Maybe Int Drop a species if it doesn't improve for this long, and it hasn't hosted the most successful genome.

Instances

Show Parameters

defParams :: Parameters Source

The parameters used in the original NEAT paper, except the perturbation amount and threshold for size.

data DistParams Source

Distance Parameters

Constructors

DistParams
Fields dp1 :: Double Coefficient to the number of excess genes dp2 :: Double Coefficient to the number of disjoint genes dp3 :: Double Coefficient to the average weight differences delta_t :: Double How close counts as the same species

Instances

Show DistParams

defDistParams :: DistParams Source

Parameters used for distance in the paper

data MutParams Source

Mutation Parameters

Constructors

MutParams

Fields

mutWeightRate :: Double: How often weights are mutated
newWeightRate :: Double: How often weights are replaced if mutated
pertAmount :: Double: Max amount of perturbation
weightRange :: Double: A new max is between negative this and positive this
addConnRate :: Double: How often new connections are made
addNodeRate :: Double: How often new nodes are added
delConnChance :: Double: How likely it is for a connection to be erased
delNodeChance :: Double: How likely it is for a node to be erased
recurrencies :: Bool: Whether to allow recurrent connections
noCrossover :: Double: Percent of population that mutates without crossover
disableChance :: Double: How likely that a disabled parent results in a disabled child

Instances

Show MutParams

defMutParams :: MutParams Source

Mutation parameters for defParams

defMutParamsS :: MutParams Source

data SpeciesParams Source

Settings for distance. Simple is for fixed distance calculations. Target should be used when you want the threshold value for distance to change to try to meet a desired species count.

Constructors

Simple DistParams
Target DistParams SpeciesTarget

Instances

Show SpeciesParams

distParams :: SpeciesParams -> DistParams Source

data SpeciesTarget Source

How to seek a target species count

Constructors

SpeciesTarget
Fields targetCount :: (Int, Int) Desired range of species count, inclusive adjustAmount :: Double How much to adjust the distance threshold if there are too many/not enough species

Instances

Show SpeciesTarget

data SearchStrat Source

Search Strategy

Constructors

Complexify
Phased PhaseParams

Instances

Show SearchStrat

data PhaseParams Source

Parameters for phased search

Constructors

PhaseParams
Fields phaseAddAmount :: Double How much to add to the mean complexity to get the next complexity phaseWaitTime :: Int How many generations without a drop in complexity warrants going back to a complexify strategy

Instances

Show PhaseParams

data PhaseState Source

State of phasing

Constructors

Complexifying Double	The argument is the current threshold to start pruning at.
Pruning Int Double	The first argument is how many generations the mean complexity has not fallen. The second is the last mean complexity.

Instances

Show PhaseState