org.apache.spark.streamdm.clusterers.clusters

TreeCoreset

class TreeCoreset extends AnyRef

A TreeCoreset contains the underlying tree structure for the coreset extraction framework. It constructs a tree structure for efficient coreset extraction from an Example stream.

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Instance Constructors

  1. new TreeCoreset()

Type Members

  1. sealed trait CoresetTree extends AnyRef

  2. class CoresetTreeElem extends AnyRef

    Wrap the information in CoresetTreeNode, which will not be modified after a CoresetTreeNode construction.

  3. case class CoresetTreeLeaf(elem: CoresetTreeElem, cost: Double) extends CoresetTree with Product with Serializable

    CoresetTreeLeaf node data structure.

  4. case class CoresetTreeNode(elem: CoresetTreeElem, left: CoresetTree, right: CoresetTree, cost: Double) extends CoresetTree with Product with Serializable

    CoresetTreeNode data structure, a component of the CoresetTree structure.

Value Members

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

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

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  3. final def ##(): Int

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

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

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  6. final def asInstanceOf[T0]: T0

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  7. def buildCoresetTree(points: Array[Example], m: Int): CoresetTree

    Build a coreset tree with the points and having the given coreset size

    Build a coreset tree with the points and having the given coreset size

    points

    for coreset tree construction

    m

    is the coreset size

    returns

    a coreset tree

  8. def clone(): AnyRef

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

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  11. def finalize(): Unit

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

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  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. def retrieveCoreset(root: CoresetTree, coreset: Array[Example]): Array[Example]

    Retrieve a new coreset from a given CoresetTree recursively.

    Retrieve a new coreset from a given CoresetTree recursively. During this process, the returned coreset will be combined with the given coreset.

    root

    the CoresetTree root node

    coreset

    the current coreset

    returns

    the new coreset

  19. def squaredDistance(p1: Example, p2: Example): Double

    A help function for computing the squared distance between two examples

    A help function for computing the squared distance between two examples

    p1

    the source Example

    p2

    the target Example

    returns

    the squared distance

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

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

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