Object/Class

org.apache.spark.ml.recommendation

ALS

Related Docs: class ALS | package recommendation

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object ALS extends Logging with Serializable

:: DeveloperApi :: An implementation of ALS that supports generic ID types, specialized for Int and Long. This is exposed as a developer API for users who do need other ID types. But it is not recommended because it increases the shuffle size and memory requirement during training. For simplicity, users and items must have the same type. The number of distinct users/items should be smaller than 2 billion.

Annotations
@DeveloperApi()
Linear Supertypes
Serializable, Serializable, Logging, AnyRef, Any
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  1. ALS
  2. Serializable
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Type Members

  1. case class Rating[ID](user: ID, item: ID, rating: Float) extends Product with Serializable

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    :: DeveloperApi :: Rating class for better code readability.

    :: DeveloperApi :: Rating class for better code readability.

    Annotations
    @DeveloperApi()

Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    AnyRef → Any

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

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    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

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    Any

  5. def clone(): AnyRef

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

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

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    Definition Classes
    AnyRef

  7. def equals(arg0: Any): Boolean

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    AnyRef → Any

  8. def finalize(): Unit

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

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

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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    Any

  12. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging

  13. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging

  14. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  15. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  16. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    protected
    Definition Classes
    Logging

  17. def logError(msg: ⇒ String): Unit

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    protected
    Definition Classes
    Logging

  18. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    protected
    Definition Classes
    Logging

  19. def logInfo(msg: ⇒ String): Unit

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    protected
    Definition Classes
    Logging

  20. def logName: String

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    protected
    Definition Classes
    Logging

  21. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    protected
    Definition Classes
    Logging

  22. def logTrace(msg: ⇒ String): Unit

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    protected
    Definition Classes
    Logging

  23. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    protected
    Definition Classes
    Logging

  24. def logWarning(msg: ⇒ String): Unit

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    protected
    Definition Classes
    Logging

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

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    Definition Classes
    AnyRef

  26. final def notify(): Unit

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    Definition Classes
    AnyRef

  27. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    AnyRef

  29. def toString(): String

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    Definition Classes
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  30. def train[ID](ratings: RDD[Rating[ID]], rank: Int = 10, numUserBlocks: Int = 10, numItemBlocks: Int = 10, maxIter: Int = 10, regParam: Double = 1.0, implicitPrefs: Boolean = false, alpha: Double = 1.0, nonnegative: Boolean = false, intermediateRDDStorageLevel: StorageLevel = StorageLevel.MEMORY_AND_DISK, finalRDDStorageLevel: StorageLevel = StorageLevel.MEMORY_AND_DISK, checkpointInterval: Int = 10, seed: Long = 0L)(implicit arg0: ClassTag[ID], ord: Ordering[ID]): (RDD[(ID, Array[Float])], RDD[(ID, Array[Float])])

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    :: DeveloperApi :: Implementation of the ALS algorithm.

    :: DeveloperApi :: Implementation of the ALS algorithm.

    Annotations
    @DeveloperApi()

  31. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    AnyRef
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    @throws( ... )

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

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    AnyRef
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    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Logging

Inherited from AnyRef

Inherited from Any

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