kdrant-core/dev.kdrant.model/Expression/Companion

Companion

object Companion

Properties

score

val score: Expression

The candidate's vector score.

Functions

condition

fun condition(filter: Filter): Expression

expDecay

fun expDecay(x: Expression, target: Expression? = null, scale: Double? = null, midpoint: Double? = null): Expression

Decay x towards zero as it moves away from target, reaching midpoint at a distance of scale. The classic use is recency: x is a datetime key, scale a number of seconds.

gaussDecay

fun gaussDecay(x: Expression, target: Expression? = null, scale: Double? = null, midpoint: Double? = null): Expression

As expDecay, with a Gaussian curve.

geoDistance

fun geoDistance(origin: GeoPoint, to: String): Expression

key

fun key(name: String): Expression

A payload key, e.g. popularity or a nested seller.rating.

linDecay

fun linDecay(x: Expression, target: Expression? = null, scale: Double? = null, midpoint: Double? = null): Expression

As expDecay, with a linear curve.

mult

fun mult(vararg operands: Expression): Expression

fun of(value: Number): Expression

sum

fun sum(vararg operands: Expression): Expression