o3de-extras/Gems/MachineLearning/Code/Source/Nodes/ComputeCost.ScriptCanvasNodeable.xml

<?xml version="1.0" encoding="utf-8"?>

<ScriptCanvas Include="Nodes/ComputeCost.h" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <Class Name="ComputeCost"
           QualifiedName="MachineLearning::ComputeCost"
           PreferredClassName="Compute cost gradient"
           Category="MachineLearning"
           Description="Calculates the cost of a machine learning model against a set of activations and a set of expected outputs.">

        <Input Name="In" DisplayGroup="In" Description="Parameters controlling cost calculation">
            <Parameter Name="Model" Type="MachineLearning::INeuralNetworkPtr" Description="The model to compute the cost of."/>
            <Parameter Name="CostFunction" Type="MachineLearning::LossFunctions" Description="The loss function to use to compute the cost."/>
            <Parameter Name="Activations" Type="AZ::VectorN" Description="The set of activation values to apply to the model (must match the models input count)."/>
            <Parameter Name="ExpectedOutput" Type="AZ::VectorN" Description="The expected outputs given the provided inputs (must match the models output count)."/>
            <Return Name="Cost" Type="float" Shared="true"/>
        </Input>
    </Class>
</ScriptCanvas>