com.intel.analytics.bigdl.dataset

Transformer

trait Transformer[A, B] extends Serializable

Transform a data stream of type A to type B. It is usually used in data pre-process stage. Different transformers can compose a pipeline. For example, if there're transformer1 from A to B, transformer2 from B to C, and transformer3 from C to D, you can compose them into a bigger transformer from A to D by transformer1 -> transformer2 -> transformer 3.

The purpose of transformer is for code reuse. Many deep learning share many common data pre-process steps. User needn't write them every time, but can reuse others work.

Transformer can be used with RDD(rdd.mapPartition), iterator and DataSet.

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B

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Abstract Value Members

  1. abstract def apply(prev: Iterator[A]): Iterator[B]

Concrete Value Members

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

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

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  3. final def ##(): Int

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  4. def ->[C](other: Transformer[B, C]): Transformer[A, C]

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

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

    Definition Classes
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  7. def apply(dataset: RDD[A])(implicit evidence: ClassTag[B]): RDD[B]

    Apply this transformer to rdd

    Apply this transformer to rdd

    dataset

  8. final def asInstanceOf[T0]: T0

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  9. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  10. def cloneTransformer(): Transformer[A, B]

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

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  12. def equals(arg0: Any): Boolean

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  13. def finalize(): Unit

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    @throws( classOf[java.lang.Throwable] )
  14. final def getClass(): Class[_]

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  15. def hashCode(): Int

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  16. final def isInstanceOf[T0]: Boolean

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

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  18. final def notify(): Unit

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  19. final def notifyAll(): Unit

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

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  21. def toString(): String

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  22. final def wait(): Unit

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

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

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