com.intel.analytics.bigdl.optim

NDCG

class NDCG[T] extends ValidationMethod[T]

Normalized Discounted Cumulative Gain(NDCG). NDCG accounts for the position of the hit by assigning higher scores to hits at top ranks.

Linear Supertypes
ValidationMethod[T], Serializable, Serializable, AnyRef, Any
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Inherited
  1. NDCG
  2. ValidationMethod
  3. Serializable
  4. Serializable
  5. AnyRef
  6. Any
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Visibility
  1. Public
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Instance Constructors

  1. new NDCG(k: Int = 10, negNum: Int = 100)(implicit arg0: ClassTag[T], ev: TensorNumeric[T])

    k

    top k.

    negNum

    number of negative items.

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 apply(output: Activity, target: Activity): ValidationResult

    Output and target should belong to the same user.

    Output and target should belong to the same user. And have (negNum + 1) elements. Target should have only one positive label, means one element is 1, others are all 0. A couple of output and target will be count as one record.

    Definition Classes
    NDCG → ValidationMethod

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def clone(): ValidationMethod[T]

    Definition Classes
    ValidationMethod → AnyRef

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

    Definition Classes
    AnyRef

  10. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  11. def finalize(): Unit

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

  12. def format(): String

    Definition Classes
    NDCG → ValidationMethod

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

    Definition Classes
    AnyRef → Any

  14. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  17. final def notify(): Unit

    Definition Classes
    AnyRef

  18. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  20. def toString(): String

    Definition Classes
    ValidationMethod → AnyRef → Any

  21. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from ValidationMethod[T]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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