kumulant

knnDistanceRegistry

val knnDistanceRegistry: Map<String, (VectorView, VectorView) -> Double>(source)

Built-in distance functions referenced by KnnContextualSpec.distance. Extend by passing a custom map when constructing the bandit programmatically.

materialize

fun <R : Result> BanditPolicySpec<R>.materialize(): BanditPolicy<R>(source)

Build a live BanditPolicy from its spec.

Arm and Posterior are themselves @Serializable sealed hierarchies, so ThompsonSamplingSpec consumes them directly without an intermediate factory hop.

fun MultiArmedSpec<*>.materialize(random: Random = Random.Default): MultiArmedBandit<Result>(source)

Build a live UnivariateBandit from its spec.

fun RouletteWheelSpec.materialize(random: Random = Random.Default): RouletteWheelBandit(source)

Build a live RouletteWheelBandit from its spec.

fun BoltzmannSpec.materialize(random: Random = Random.Default): BoltzmannBandit(source)

Build a live BoltzmannBandit from its spec.

fun Exp3Spec.materialize(random: Random = Random.Default): Exp3Bandit(source)

Build a live Exp3Bandit from its spec, resolving null eta / gamma to defaults.

fun <R : Result> TopTwoThompsonSpec<R>.materialize(random: Random = Random.Default): TopTwoThompsonBandit<R>(source)

Build a live TopTwoThompsonBandit from its spec.

fun UnivariateBanditSpec.materialize(random: Random = Random.Default): Bandit(source)

Dispatch any UnivariateBanditSpec to its concrete bandit.

fun RegressionContextualSpec.materialize(random: Random = Random.Default, concurrency: Concurrency = Concurrency.None): RegressionContextualBandit<out LinearRegressionResult>(source)

Build a live RegressionContextualBandit from its spec.

fun KnnContextualSpec.materialize(random: Random = Random.Default, distanceRegistry: Map<String, (VectorView, VectorView) -> Double> = knnDistanceRegistry): KnnContextualBandit(source)

Build a live KnnContextualBandit from its spec, resolving the distance function via distanceRegistry (defaults to knnDistanceRegistry).

fun ContextualBanditSpec.materialize(random: Random = Random.Default, concurrency: Concurrency = Concurrency.None): Bandit(source)

Dispatch any ContextualBanditSpec to its concrete bandit.