Documentation
¶
Index ¶
Constants ¶
const ( Weight int = iota Bias LEO )
Constants for the output index
Variables ¶
var ( ErrMissingCppnTranscriber = errors.New("hyperneat transcriber requires a cppn transcriber") ErrMissingCppnTranslator = errors.New("hyperneat transcriber requires a cppn translator") ErrMissingInspector = errors.New("hyperneat transcriber requires an inspector") ErrTemplateNotSet = errors.New("hyperneat template not set") ErrNoInputNodes = errors.New("hyperneat template has no input nodes") ErrNoOutputNodes = errors.New("hyperneat template has no output nodes") ErrHasExistingConns = errors.New("hyperneat template should not have existing connections") ErrInvalidWeightPower = errors.New("hyperneat weight power cannot be zero") )
Known errors
Functions ¶
This section is empty.
Types ¶
type ConstantThreshold ¶
type ConstantThreshold struct {
Threshold float64
}
ConstantThreshold determines the weight and expression of a connection using the weight output compared against a constant threshold value
func (ConstantThreshold) WeightAndExpression ¶
func (ct ConstantThreshold) WeightAndExpression(outputs evo.Matrix, i int, wp float64) (w float64, e float64)
WeightAndExpression returns the weight and expression values for the connection at row i of the matrix. If expression > 0, the HyperNEAT transcriber will create the connection with the given weight
type Experiment ¶
type Experiment struct {
neat.Experiment
Transcriber
Seeder
}
Experiment builds on the NEAT experiment by adding HyperNEAT specific helpers
func NewExperiment ¶
func NewExperiment(cfg config.Configurer) (exp *Experiment)
NewExperiment creates a new Hyper-NEAT experiment using the configuration. Configurations employ the maximum namespace so user can be as specific or lax (depending on depth of namespace used) as desired.
type Inspector ¶
type Inspector interface {
WeightAndExpression(outputs evo.Matrix, idx int, weightPower float64) (w float64, e float64)
}
Inspector describes a helper that provides the weight and expression values for a connection
type LinkExpressionOutput ¶
type LinkExpressionOutput struct{}
LinkExpressionOutput determines the weight and expression of a connection using the LEO output
func (LinkExpressionOutput) WeightAndExpression ¶
func (LinkExpressionOutput) WeightAndExpression(outputs evo.Matrix, i int, wp float64) (w float64, e float64)
WeightAndExpression returns the weight and expression values for the connection at row i of the matrix. If expression > 0, the HyperNEAT transcriber will create the connection with the given weight
type Seeder ¶
type Seeder struct {
NumTraits int
DisconnectRate float64
OutputActivation evo.Activation
SeedLocalityLayer bool
SeedLocalityX bool
SeedLocalityY bool
SeedLocalityZ bool
}
Seeder creates the seed population geared towards Cppns. Each encoded substrate will have 8 inputs, one for each dimension of the source and target nodes, and 3 ouputs: output weight, output enabled check (LEO), and bias value. The bias is used for hidden and output nodes only.
type Transcriber ¶
type Transcriber struct {
// Helpers
CppnTranscriber evo.Transcriber
CppnTranslator evo.Translator
Inspector // used to determine the weight of a connection and if it will be expressed
// Properties
WeightPower float64 // Power by which to multiply the weight's output value
BiasPower float64 // Power by which to multiply the weight's output value
DisableSortCheck bool // Speed things up by disabling sort check on encoded substrate. Use only if sure the incoming substrate is already sorted.
// contains filtered or unexported fields
}
Transcriber decodes an encoded substrate by processing it through a Cppn
func (*Transcriber) SetTemplate ¶
func (t *Transcriber) SetTemplate(tmpl evo.Substrate) (err error)
SetTemplate creates the inner structure of the transcriber using the supplied template.
func (Transcriber) Transcribe ¶
Transcribe creates a cppn network from the encoded substrate and then decodes it
Source Files