Crate optimal_pbil 

Population-based incremental learning (PBIL).

Examples

use optimal_pbil::*;

println!(
    "{:?}",
    UntilProbabilitiesConvergedConfig::default()
        .start(Config::start_default_for(16, |point| point.iter().filter(|x| **x).count()))
        .argmin()
);

Structs

AdjustRate

Degree to adjust probabilities towards best point during steps.

AdjustRateFromStrError

Error returned when failing to convert from a string or into ‘AdjustRate’.

Config

PBIL configuration parameters.

InvalidNumSamplesError

Error returned when ‘NumSamples’ is given a value below lower bound.

MismatchedLengthError

Error returned when problem length does not match state length.

MutationAdjustRate

Degree to adjust probability towards random value when mutating.

MutationAdjustRateFromStrError

Error returned when failing to convert from a string or into ‘MutationAdjustRate’.

MutationChance

Probability for each probability to mutate, independently.

MutationChanceFromStrError

Error returned when failing to convert from a string or into ‘MutationChance’.

NumSamples

Number of samples generated during steps.

NumSamplesFromStrError

Error returned when failing to convert from a string or into ‘NumSamples’.

Pbil

A running PBIL optimizer.

Probability

Probability for a sampled bit to be true.

ProbabilityFromStrError

Error returned when failing to convert from a string or into ‘Probability’.

ProbabilityThreshold

PBIL can be considered done when all probabilities are above this threshold or below the inverse.

State

PBIL state.

UntilProbabilitiesConverged

PBIL runner to check for converged probabilities.

UntilProbabilitiesConvergedConfig

Config for PBIL runner to check for converged probabilities.

Enums

InvalidAdjustRateError

Error returned when ‘AdjustRate’ is given an invalid value.

InvalidMutationAdjustRateError

Error returned when ‘MutationAdjustRate’ is given an invalid value.

InvalidMutationChanceError

Error returned when ‘MutationChance’ is given an invalid value.

InvalidProbabilityError

Error returned when ‘Probability’ is given an invalid value.

InvalidProbabilityThresholdError

Error returned when ‘ConvergedThreshold’ is given an invalid value.

StateKind

PBIL state kind.

Traits

Optimizer

Running optimizer methods independent of configuration and state.

OptimizerExt

An extension trait adding methods to StreamingIterator for optimization.

Probabilities

A type containing an array of probabilities.

StreamingIterator

An interface for dealing with streaming iterators.

StreamingIteratorExt

An extension trait adding methods to StreamingIterator.