Class

com.twitter.algebird

CMSParams

Related Doc: package algebird

Permalink

case class CMSParams[K](hashes: Seq[CMSHash[K]], eps: Double, delta: Double, maxExactCountOpt: Option[Int] = None) extends Product with Serializable

Configuration parameters for CMS.

K

The type used to identify the elements to be counted.

hashes

Pair-wise independent hashes functions. We need N=depth such functions (depth can be derived from delta).

eps

One-sided error bound on the error of each point query, i.e. frequency estimate.

delta

A bound on the probability that a query estimate does not lie within some small interval (an interval that depends on eps) around the truth.

maxExactCountOpt

An Option parameter about how many exact counts a sparse CMS wants to keep.

Source
CountMinSketch.scala
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. CMSParams
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new CMSParams(hashes: Seq[CMSHash[K]], eps: Double, delta: Double, maxExactCountOpt: Option[Int] = None)

    Permalink

    hashes

    Pair-wise independent hashes functions. We need N=depth such functions (depth can be derived from delta).

    eps

    One-sided error bound on the error of each point query, i.e. frequency estimate.

    delta

    A bound on the probability that a query estimate does not lie within some small interval (an interval that depends on eps) around the truth.

    maxExactCountOpt

    An Option parameter about how many exact counts a sparse CMS wants to keep.

Value Members

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

    Permalink
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Permalink
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

    Permalink
    Definition Classes
    Any
  5. def clone(): AnyRef

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  6. val delta: Double

    Permalink

    A bound on the probability that a query estimate does not lie within some small interval (an interval that depends on eps) around the truth.

  7. val eps: Double

    Permalink

    One-sided error bound on the error of each point query, i.e.

    One-sided error bound on the error of each point query, i.e. frequency estimate.

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

    Permalink
    Definition Classes
    AnyRef
  9. def finalize(): Unit

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]

    Permalink
    Definition Classes
    AnyRef → Any
  11. val hashes: Seq[CMSHash[K]]

    Permalink

    Pair-wise independent hashes functions.

    Pair-wise independent hashes functions. We need N=depth such functions (depth can be derived from delta).

  12. final def isInstanceOf[T0]: Boolean

    Permalink
    Definition Classes
    Any
  13. val maxExactCountOpt: Option[Int]

    Permalink

    An Option parameter about how many exact counts a sparse CMS wants to keep.

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

    Permalink
    Definition Classes
    AnyRef
  15. final def notify(): Unit

    Permalink
    Definition Classes
    AnyRef
  16. final def notifyAll(): Unit

    Permalink
    Definition Classes
    AnyRef
  17. final def synchronized[T0](arg0: ⇒ T0): T0

    Permalink
    Definition Classes
    AnyRef
  18. final def wait(): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  19. final def wait(arg0: Long, arg1: Int): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  20. final def wait(arg0: Long): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped