Module neuroevolution 

Topology-evolving neuroevolution (NEAT) — the host-side graph data model.

This module holds the building blocks shared by NEAT: the graph genome (topology), the per-run innovation registry (innovation), speciation (species), and the phenotype builders (phenotype). The NeatStrategy custom harness that drives them lives in crate::algorithms::neuroevolution::neat.

These types are graphs, not tensors: unlike the Strategy genomes elsewhere in the crate, TopologyGenome is plain host-side data (and is Clone). A genome is scored either one at a time, through the interpreted InterpretedBuilder reference path, or a whole population at once, through the device-batched DensePaddedEvaluator; the two agree to float epsilon.

Orientation

NEAT is maximization (higher fitness is better) — matching the crate-wide maximise convention. Species best/stagnation tracking, fitness sharing, and the GraphFitnessFn seam all treat higher as better; a cost objective is reconciled into canonical space by the harness/adapter chokepoint, not by hand here.

Re-exports

pub use innovation::InnovationRegistry;

pub use innovation::NodeSplit;

pub use phenotype::BatchPhenotypeEvaluator;

pub use phenotype::DensePaddedEvaluator;

pub use phenotype::InterpretedBuilder;

pub use phenotype::InterpretedPhenotype;

pub use phenotype::Phenotype;

pub use phenotype::PhenotypeBuilder;

pub use species::Species;

pub use species::SpeciesId;

pub use species::allocate_offspring;

pub use species::compatibility_distance;

pub use species::remove_stagnant;

pub use species::speciate;

pub use topology::ActivationFn;

pub use topology::ConnectionGene;

pub use topology::InnovationId;

pub use topology::NodeGene;

pub use topology::NodeId;

pub use topology::NodeKind;

pub use topology::TopologyGenome;

Modules

innovation

Innovation-number bookkeeping — the per-run registry that assigns the historical markers NEAT crossover aligns on.

phenotype

Phenotype construction — turning a TopologyGenome into a callable network.

species

Speciation — compatibility distance, the representative-assignment pass, fitness sharing, stagnation, and offspring apportionment.

topology

NEAT topology genome — a direct graph encoding of node and connection genes.