Interface IRankFeatureSigmoidFunction

is an extension of saturation which adds a configurable exponent. Scores are computed as S^exp^ / (S^exp^ + pivot^exp^). Like for the saturation function, pivot is the value of S that gives a score of 0.5 and scores are in (0, 1).

exponent must be positive, but is typically in [0.5, 1]. A good value should be computed via training. If you don’t have the opportunity to do so, we recommend that you stick to the saturation function instead.

Namespace: OpenSearch.Client
Assembly: OpenSearch.Client.dll
Syntax
public interface IRankFeatureSigmoidFunction : IRankFeatureFunction

Properties

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Exponent

The exponent. Must be positive

Declaration
[DataMember(Name = "exponent")]
float Exponent { get; set; }
Property Value
Type Description
float
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Pivot

Declaration
[DataMember(Name = "pivot")]
float Pivot { get; set; }
Property Value
Type Description
float

Extension Methods