nak.data

TfidfBatchFeaturizer

class TfidfBatchFeaturizer[L] extends BatchFeaturizer[L, String, String]

A BatchFeaturizer that computes the tf-idf score of the terms in each Example. Also performs basic feature selection by pruning words/features that don't pass a given count.

Linear Supertypes
BatchFeaturizer[L, String, String], Serializable, Serializable, (Seq[Example[L, String]]) ⇒ Seq[Example[L, Seq[FeatureObservation[String]]]], AnyRef, Any
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Inherited
  1. TfidfBatchFeaturizer
  2. BatchFeaturizer
  3. Serializable
  4. Serializable
  5. Function1
  6. AnyRef
  7. Any
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Visibility
  1. Public
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Instance Constructors

  1. new TfidfBatchFeaturizer(minimumUnigramCount: Int = 2, stopwords: Set[String] = ..., addDefault: Boolean = false)

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  6. def andThen[A](g: (Seq[Example[L, Seq[FeatureObservation[String]]]]) ⇒ A): (Seq[Example[L, String]]) ⇒ A

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  7. def apply(examples: Seq[Example[L, String]]): Seq[Example[L, Seq[FeatureObservation[String]]]]

    Definition Classes
    TfidfBatchFeaturizer → Function1

  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  9. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  10. def compose[A](g: (A) ⇒ Seq[Example[L, String]]): (A) ⇒ Seq[Example[L, Seq[FeatureObservation[String]]]]

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  11. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  12. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  13. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  14. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  15. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  16. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  17. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  18. final def notify(): Unit

    Definition Classes
    AnyRef

  19. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  20. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  21. def toString(): String

    Definition Classes
    Function1 → AnyRef → Any

  22. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  23. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  24. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from BatchFeaturizer[L, String, String]

Inherited from Serializable

Inherited from Serializable

Inherited from (Seq[Example[L, String]]) ⇒ Seq[Example[L, Seq[FeatureObservation[String]]]]

Inherited from AnyRef

Inherited from Any

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