Class: Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec

Inherits:
Object
  • Object
show all
Extended by:
Protobuf::MessageExts::ClassMethods
Includes:
Protobuf::MessageExts
Defined in:
proto_docs/google/cloud/discoveryengine/v1/search_service.rb

Overview

Boost specification to boost certain documents.

Defined Under Namespace

Classes: ConditionBoostSpec

Instance Attribute Summary collapse

Instance Attribute Details

#condition_boost_specs ⇒ ::Array<::Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec::ConditionBoostSpec>

Returns Condition boost specifications. If a document matches multiple conditions in the specifictions, boost scores from these specifications are all applied and combined in a non-linear way. Maximum number of specifications is 20.

Returns:



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# File 'proto_docs/google/cloud/discoveryengine/v1/search_service.rb', line 443

class BoostSpec
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # Boost applies to documents which match a condition.
  # @!attribute [rw] condition
  #   @return [::String]
  #     An expression which specifies a boost condition. The syntax and
  #     supported fields are the same as a filter expression. See
  #     {::Google::Cloud::DiscoveryEngine::V1::SearchRequest#filter SearchRequest.filter}
  #     for detail syntax and limitations.
  #
  #     Examples:
  #
  #     * To boost documents with document ID "doc_1" or "doc_2", and
  #     color "Red" or "Blue":
  #     `(document_id: ANY("doc_1", "doc_2")) AND (color: ANY("Red", "Blue"))`
  # @!attribute [rw] boost
  #   @return [::Float]
  #     Strength of the condition boost, which should be in [-1, 1]. Negative
  #     boost means demotion. Default is 0.0.
  #
  #     Setting to 1.0 gives the document a big promotion. However, it does
  #     not necessarily mean that the boosted document will be the top result
  #     at all times, nor that other documents will be excluded. Results
  #     could still be shown even when none of them matches the condition.
  #     And results that are significantly more relevant to the search query
  #     can still trump your heavily favored but irrelevant documents.
  #
  #     Setting to -1.0 gives the document a big demotion. However, results
  #     that are deeply relevant might still be shown. The document will have
  #     an upstream battle to get a fairly high ranking, but it is not
  #     blocked out completely.
  #
  #     Setting to 0.0 means no boost applied. The boosting condition is
  #     ignored. Only one of the (condition, boost) combination or the
  #     boost_control_spec below are set. If both are set then the global boost
  #     is ignored and the more fine-grained boost_control_spec is applied.
  # @!attribute [rw] boost_control_spec
  #   @return [::Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec::ConditionBoostSpec::BoostControlSpec]
  #     Complex specification for custom ranking based on customer defined
  #     attribute value.
  class ConditionBoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specification for custom ranking based on customer specified attribute
    # value. It provides more controls for customized ranking than the simple
    # (condition, boost) combination above.
    # @!attribute [rw] field_name
    #   @return [::String]
    #     The name of the field whose value will be used to determine the
    #     boost amount.
    # @!attribute [rw] attribute_type
    #   @return [::Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec::ConditionBoostSpec::BoostControlSpec::AttributeType]
    #     The attribute type to be used to determine the boost amount. The
    #     attribute value can be derived from the field value of the specified
    #     field_name. In the case of numerical it is straightforward i.e.
    #     attribute_value = numerical_field_value. In the case of freshness
    #     however, attribute_value = (time.now() - datetime_field_value).
    # @!attribute [rw] interpolation_type
    #   @return [::Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec::ConditionBoostSpec::BoostControlSpec::InterpolationType]
    #     The interpolation type to be applied to connect the control points
    #     listed below.
    # @!attribute [rw] control_points
    #   @return [::Array<::Google::Cloud::DiscoveryEngine::V1::SearchRequest::BoostSpec::ConditionBoostSpec::BoostControlSpec::ControlPoint>]
    #     The control points used to define the curve. The monotonic function
    #     (defined through the interpolation_type above) passes through the
    #     control points listed here.
    class BoostControlSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # The control points used to define the curve. The curve defined
      # through these control points can only be monotonically increasing
      # or decreasing(constant values are acceptable).
      # @!attribute [rw] attribute_value
      #   @return [::String]
      #     Can be one of:
      #     1. The numerical field value.
      #     2. The duration spec for freshness:
      #     The value must be formatted as an XSD `dayTimeDuration` value (a
      #     restricted subset of an ISO 8601 duration value). The pattern for
      #     this is: `[nD][T[nH][nM][nS]]`.
      # @!attribute [rw] boost_amount
      #   @return [::Float]
      #     The value between -1 to 1 by which to boost the score if the
      #     attribute_value evaluates to the value specified above.
      class ControlPoint
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end

      # The attribute(or function) for which the custom ranking is to be
      # applied.
      module AttributeType
        # Unspecified AttributeType.
        ATTRIBUTE_TYPE_UNSPECIFIED = 0

        # The value of the numerical field will be used to dynamically update
        # the boost amount. In this case, the attribute_value (the x value)
        # of the control point will be the actual value of the numerical
        # field for which the boost_amount is specified.
        NUMERICAL = 1

        # For the freshness use case the attribute value will be the duration
        # between the current time and the date in the datetime field
        # specified. The value must be formatted as an XSD `dayTimeDuration`
        # value (a restricted subset of an ISO 8601 duration value). The
        # pattern for this is: `[nD][T[nH][nM][nS]]`.
        # For example, `5D`, `3DT12H30M`, `T24H`.
        FRESHNESS = 2
      end

      # The interpolation type to be applied. Default will be linear
      # (Piecewise Linear).
      module InterpolationType
        # Interpolation type is unspecified. In this case, it defaults to
        # Linear.
        INTERPOLATION_TYPE_UNSPECIFIED = 0

        # Piecewise linear interpolation will be applied.
        LINEAR = 1
      end
    end
  end
end