com.indeed.vw.wrapper.api.example

Class ExampleBuilder.NamespaceBuilder

java.lang.Object

com.indeed.vw.wrapper.api.example.ExampleBuilder.NamespaceBuilder

Enclosing class:

ExampleBuilder

public static class ExampleBuilder.NamespaceBuilder
extends Object

Builder for namespace.

Method Summary

Modifier and Type	Method and Description
ExampleBuilder.NamespaceBuilder	addCategoricalFeature(Object feature) Add a categorical feature to this namespace (e.g.
ExampleBuilder.NamespaceBuilder	addCategoricalFeature(String subNamespace, Object categoricalValue) Add a categorical feature to this namespace (e.g.
ExampleBuilder.NamespaceBuilder	addNumericalFeature(String featureName, double numericalValue) Add numerical feature to this namespace (e.g.
ExampleBuilder.NamespaceBuilder	addTextAsFeatures(String text) Add text feature to this namespace (e.g.
ExampleBuilder.NamespaceBuilder	namespaceWeight(double weight) Namespace weight acts as a global scaling of all the values of the features in this namespace.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

namespaceWeight

public ExampleBuilder.NamespaceBuilder namespaceWeight(double weight)

Namespace weight acts as a global scaling of all the values of the features in this namespace.

If value is omitted, the default is 1.

Parameters:

weight - namespace weight

Returns:

builder

addCategoricalFeature

public ExampleBuilder.NamespaceBuilder addCategoricalFeature(@Nonnull
                                                             Object feature)

Add a categorical feature to this namespace (e.g. userId, jobId)

Parameters:

feature - categorical feature

Returns:

builder

addCategoricalFeature

public ExampleBuilder.NamespaceBuilder addCategoricalFeature(@Nonnull
                                                             String subNamespace,
                                                             @Nonnull
                                                             Object categoricalValue)

Add a categorical feature to this namespace (e.g. userId, jobId)

Parameters:

subNamespace - sub namespace - e.g. namespace=person, subNamespace=gender, feature=Female

categoricalValue - - categorical value

Returns:

builder

addTextAsFeatures

public ExampleBuilder.NamespaceBuilder addTextAsFeatures(@Nonnull
                                                         String text)

Add text feature to this namespace (e.g. job description)

Parameters:

text - raw text

Returns:

builder

addNumericalFeature

public ExampleBuilder.NamespaceBuilder addNumericalFeature(@Nonnull
                                                           String featureName,
                                                           double numericalValue)

Add numerical feature to this namespace (e.g. time series previous values)

Also you may use this method to add categorical feature with weight

(e.g. bag of words model with tf-idf weights)

Parameters:

featureName - name of numerical feature (e.g. ctr)

numericalValue - value of numerical feature (e.g. 0.032)

Returns:

builder

toString

public String toString()

Overrides:

toString in class Object