rlevo_evolution::algorithms::metaheuristic::pso

Struct PsoConfig

pub struct PsoConfig {
    pub pop_size: usize,
    pub genome_dim: usize,
    pub bounds: (f32, f32),
    pub inertia: f32,
    pub c1: f32,
    pub c2: f32,
    pub v_max: f32,
    pub variant: PsoVariant,
}

Expand description

Static configuration for a ParticleSwarm run.

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§pop_size: usize

Number of particles in the swarm.

§genome_dim: usize

Genome (position) dimensionality.

§bounds: (f32, f32)

Search-space bounds for initialization and position clamping.

§inertia: f32

Inertia weight (only used by PsoVariant::Inertia).

§c1: f32

Cognitive coefficient (personal-best pull).

§c2: f32

Social coefficient (global-best pull).

§v_max: f32

Per-dimension velocity clamp. Classical PSO literature recommends ~half the search-space extent.

§variant: PsoVariant

Variant.

Implementations§

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impl PsoConfig

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pub fn default_for(pop_size: usize, genome_dim: usize) -> Self

Default configuration matching Shi & Eberhart’s canonical settings (ω = 0.7298, c1 = c2 = 1.49618) — the constriction-equivalent values so Inertia and Constriction variants agree in behaviour under the same default.

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pub fn constriction_chi(&self) -> f32

Constriction factor χ = 2 / |2 − φ − √(φ² − 4φ)|.

Trait Implementations§

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impl Clone for PsoConfig

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fn clone(&self) -> PsoConfig

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for PsoConfig

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for PsoConfig

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impl<T> Adaptor<()> for T

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fn adapt(&self)

Adapt the type to be passed to a metric.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoComptime for T

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fn comptime(self) -> Self

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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