Class

breeze.optimize

TruncatedNewtonMinimizer

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class TruncatedNewtonMinimizer[T, H] extends Minimizer[T, SecondOrderFunction[T, H]] with SerializableLogging

Implements a TruncatedNewton Trust region method (like Tron). Also implements "Hessian Free learning". We have a few extra tricks though... :)

Linear Supertypes
SerializableLogging, Serializable, Serializable, Minimizer[T, SecondOrderFunction[T, H]], AnyRef, Any
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  4. Serializable
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Visibility
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Instance Constructors

  1. new TruncatedNewtonMinimizer(maxIterations: Int = 1, tolerance: Double = 1E-6, l2Regularization: Double = 0, m: Int = 0)(implicit space: MutableVectorField[T, Double], mult: linalg.operators.OpMulMatrix.Impl2[H, T, T])

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Type Members

  1. case class History(memStep: IndexedSeq[T] = IndexedSeq.empty, memGradDelta: IndexedSeq[T] = IndexedSeq.empty) extends Product with Serializable

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  2. case class State(iter: Int, initialGNorm: Double, delta: Double, x: T, fval: Double, grad: T, h: H, adjFval: Double, adjGrad: T, stop: Boolean, accept: Boolean, history: History) extends Product with Serializable

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Value Members

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def chooseDescentDirection(state: State): T

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    protected

  6. def clone(): AnyRef

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    @throws( ... )

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

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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

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

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  11. def hashCode(): Int

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  12. def initialHistory(f: DiffFunction[T], x: T): History

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    protected

  13. final def isInstanceOf[T0]: Boolean

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  14. def iterations(f: SecondOrderFunction[T, H], initial: T): Iterator[State]

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  15. def logger: LazyLogger

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    protected
    Definition Classes
    SerializableLogging

  16. def minimize(f: SecondOrderFunction[T, H], initial: T): T

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    Definition Classes
    TruncatedNewtonMinimizer → Minimizer

  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. def updateHistory(newX: T, newGrad: T, newVal: Double, oldState: State): History

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    Attributes
    protected

  23. final def wait(): Unit

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    @throws( ... )

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

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    @throws( ... )

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

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Inherited from SerializableLogging

Inherited from Serializable

Inherited from Serializable

Inherited from Minimizer[T, SecondOrderFunction[T, H]]

Inherited from AnyRef

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