Class BeliefPropagationGateEnterOneOp

Provides outgoing messages for EnterOne<T>(Int32, T, Int32), given random arguments to the function.

Inheritance
Object
BeliefPropagationGateEnterOneOp
Inherited Members
Namespace: Microsoft.ML.Probabilistic.Factors
Assembly: Microsoft.ML.Probabilistic.dll
Syntax
[FactorMethod(typeof(Gate), "EnterOne<>", new Type[]{null, typeof(int), null, typeof(int)})]
[Quality(QualityBand.Stable)]
public static class BeliefPropagationGateEnterOneOp
Remarks

The message operators contained in this class assume that the distribution of the variable entering the gate can represent mixtures exactly.

Methods

ValueAverageConditional<TDist>(TDist, Discrete, TDist, Int32, TDist)

EP message to value.

Declaration
public static TDist ValueAverageConditional<TDist>([SkipIfAllUniform] TDist enterOne, Discrete selector, TDist value, int index, TDist result)
    where TDist : ICloneable, SettableToUniform, SettableToWeightedSum<TDist>, SettableTo<TDist>, CanGetLogAverageOf<TDist>, CanGetLogNormalizer
Parameters
Type Name Description
TDist enterOne

Incoming message from enterOne. Must be a proper distribution. If uniform, the result will be uniform.
Discrete selector

Incoming message from selector.
TDist value

Incoming message from value.
Int32 index

Constant value for index.
TDist result

Modified to contain the outgoing message.
Returns
Type Description
TDist

result
Type Parameters
Name Description
TDist

The type of the distribution over the variable entering the gate.
Remarks

The outgoing message is a distribution matching the moments of value as the random arguments are varied. The formula is proj[p(value) sum_(enterOne,selector) p(enterOne,selector) factor(enterOne,selector,value,index)]/p(value).

Exceptions
Type Condition
ImproperMessageException

enterOne is not a proper distribution.