kumulant/com.eignex.kumulant.bandit.contextual/KnnArmResult

KnnArmResult

@Serializable

@SerialName(value = "KnnArmResult")

data class KnnArmResult(val contexts: List<DoubleArray>, val rewards: DoubleArray, val weights: DoubleArray, val totalWeight: Double) : Result(source)

Per-arm snapshot for KnnContextualBandit: the retained history of (context, reward, weight) triples plus the cumulative observation weight.

The arrays are parallel (same length, indexed by sample). Merging is append-then-trim: foreign samples are concatenated to the local history and the oldest entries roll off if the result exceeds maxHistoryPerArm.

Constructors

KnnArmResult

constructor(contexts: List<DoubleArray>, rewards: DoubleArray, weights: DoubleArray, totalWeight: Double)

Properties

contexts

val contexts: List<DoubleArray>

Retained contexts (each a copy of the submitted VectorView).

rewards

val rewards: DoubleArray

Per-sample rewards, parallel to contexts.

totalWeight

val totalWeight: Double

Cumulative observation weight folded into this arm.

weights

val weights: DoubleArray

Per-sample weights, parallel to contexts.

KnnArmResult

constructor(contexts: List<DoubleArray>, rewards: DoubleArray, weights: DoubleArray, totalWeight: Double)(source)

contexts

val contexts: List<DoubleArray>(source)

Retained contexts (each a copy of the submitted VectorView).

rewards

val rewards: DoubleArray(source)

Per-sample rewards, parallel to contexts.

totalWeight

val totalWeight: Double(source)

Cumulative observation weight folded into this arm.

weights

val weights: DoubleArray(source)

Per-sample weights, parallel to contexts.