Class CharStringConcatOp

Provides outgoing messages for Concat(Char, String), given random arguments to the function.

Inheritance

Object

CharStringConcatOp

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Microsoft.ML.Probabilistic.Factors

Assembly: Microsoft.ML.Probabilistic.dll

Syntax

[FactorMethod(typeof(Factor), "Concat", new Type[]{typeof(char), typeof(string)})]
[Quality(QualityBand.Experimental)]
public static class CharStringConcatOp

Methods

ChAverageConditional(StringDistribution, StringDistribution)

EP message to ch.

Declaration

public static DiscreteChar ChAverageConditional(StringDistribution concat, StringDistribution str)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
StringDistribution	str	Incoming message from str.

Returns

Type	Description
DiscreteChar	The outgoing EP message to the ch argument.

Remarks

The outgoing message is a distribution matching the moments of ch as the random arguments are varied. The formula is proj[p(ch) sum_(concat,str) p(concat,str) factor(concat,ch,str)]/p(ch).

ConcatAverageConditional(DiscreteChar, StringDistribution)

EP message to concat.

Declaration

public static StringDistribution ConcatAverageConditional(DiscreteChar ch, StringDistribution str)

Parameters

Type	Name	Description
DiscreteChar	ch	Incoming message from ch.
StringDistribution	str	Incoming message from str.

Returns

Type	Description
StringDistribution	The outgoing EP message to the concat argument.

Remarks

The outgoing message is a distribution matching the moments of concat as the random arguments are varied. The formula is proj[p(concat) sum_(ch,str) p(ch,str) factor(concat,ch,str)]/p(concat).

LogAverageFactor(StringDistribution, DiscreteChar, StringDistribution)

Evidence message for EP.

Declaration

public static double LogAverageFactor(StringDistribution concat, DiscreteChar ch, StringDistribution str)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
DiscreteChar	ch	Incoming message from ch.
StringDistribution	str	Incoming message from str.

Returns

Type	Description
Double	Logarithm of the factor's average value across the given argument distributions.

Remarks

The formula for the result is log(sum_(concat,ch,str) p(concat,ch,str) factor(concat,ch,str)).

LogEvidenceRatio(StringDistribution, DiscreteChar, StringDistribution)

Evidence message for EP.

Declaration

public static double LogEvidenceRatio(StringDistribution concat, DiscreteChar ch, StringDistribution str)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
DiscreteChar	ch	Incoming message from ch.
StringDistribution	str	Incoming message from str.

Returns

Type	Description
Double	Logarithm of the factor's contribution the EP model evidence.

Remarks

The formula for the result is log(sum_(concat,ch,str) p(concat,ch,str) factor(concat,ch,str) / sum_concat p(concat) messageTo(concat)). Adding up these values across all factors and variables gives the log-evidence estimate for EP.

LogEvidenceRatio(String, DiscreteChar, StringDistribution)

Evidence message for EP.

Declaration

public static double LogEvidenceRatio(string concat, DiscreteChar ch, StringDistribution str)

Parameters

Type	Name	Description
String	concat	Constant value for concat.
DiscreteChar	ch	Incoming message from ch.
StringDistribution	str	Incoming message from str.

Returns

Type	Description
Double	Logarithm of the factor's contribution the EP model evidence.

Remarks

The formula for the result is log(sum_(ch,str) p(ch,str) factor(concat,ch,str)). Adding up these values across all factors and variables gives the log-evidence estimate for EP.

StrAverageConditional(StringDistribution, DiscreteChar)

EP message to str.

Declaration

public static StringDistribution StrAverageConditional(StringDistribution concat, DiscreteChar ch)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
DiscreteChar	ch	Incoming message from ch.

Returns

Type	Description
StringDistribution	The outgoing EP message to the str argument.

Remarks

The outgoing message is a distribution matching the moments of str as the random arguments are varied. The formula is proj[p(str) sum_(concat,ch) p(concat,ch) factor(concat,ch,str)]/p(str).