Class

com.microsoft.ml.spark.vw.featurizer

Featurizer

Related Doc: package featurizer

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abstract class Featurizer extends Serializable

Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
BooleanFeaturizer, MapFeaturizer, MapStringFeaturizer, NumericFeaturizer, StringArrayFeaturizer, StringFeaturizer, StringSplitFeaturizer, VectorFeaturizer
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  1. Featurizer
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Visibility
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Instance Constructors

  1. new Featurizer(fieldIdx: Int)

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Abstract Value Members

  1. abstract val columnName: String

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  2. abstract def featurize(row: Row, indices: ArrayBuilder[Int], values: ArrayBuilder[Double]): Unit

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    Featurize a single row.

    Featurize a single row.

    row

    input row.

    indices

    output indices.

    values

    output values.

    Note

    this interface isn't very Scala idiomatic, but it avoids lots of allocation. Also due to SparseVector limitations we don't support 64bit indices (e.g. indices are signed 32bit ints)

Concrete Value Members

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    @throws( ... )

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

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  7. def equals(arg0: Any): Boolean

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  8. val fieldIdx: Int

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  9. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

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

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  11. def hashCode(): Int

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  12. lazy val hasher: VowpalWabbitMurmurWithPrefix

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    Initialize hasher that already pre-hashes the column prefix.

    Initialize hasher that already pre-hashes the column prefix.

    Attributes
    protected

  13. final def isInstanceOf[T0]: Boolean

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

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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

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  18. def toString(): String

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  19. final def wait(): Unit

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    @throws( ... )

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

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

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Inherited from Serializable

Inherited from Serializable

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