Class StringConcatOp

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

Inheritance

Object

StringConcatOp

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(string), typeof(string)})]
[Quality(QualityBand.Preview)]
public static class StringConcatOp

Methods

ConcatAverageConditional(StringDistribution, StringDistribution)

EP message to concat.

Declaration

public static StringDistribution ConcatAverageConditional(StringDistribution str1, StringDistribution str2)

Parameters

Type	Name	Description
StringDistribution	str1	Incoming message from str1.
StringDistribution	str2	Incoming message from str2.

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_(str1,str2) p(str1,str2) factor(concat,str1,str2)]/p(concat).

LogAverageFactor(StringDistribution, StringDistribution, StringDistribution)

Evidence message for EP.

Declaration

public static double LogAverageFactor(StringDistribution concat, StringDistribution str1, StringDistribution str2)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
StringDistribution	str1	Incoming message from str1.
StringDistribution	str2	Incoming message from str2.

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,str1,str2) p(concat,str1,str2) factor(concat,str1,str2)).

LogEvidenceRatio(StringDistribution, StringDistribution, StringDistribution)

Evidence message for EP.

Declaration

public static double LogEvidenceRatio(StringDistribution concat, StringDistribution str1, StringDistribution str2)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
StringDistribution	str1	Incoming message from str1.
StringDistribution	str2	Incoming message from str2.

Returns

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

Remarks

The formula for the result is log(sum_(concat,str1,str2) p(concat,str1,str2) factor(concat,str1,str2) / sum_concat p(concat) messageTo(concat)). Adding up these values across all factors and variables gives the log-evidence estimate for EP.

LogEvidenceRatio(String, StringDistribution, StringDistribution)

Evidence message for EP.

Declaration

public static double LogEvidenceRatio(string concat, StringDistribution str1, StringDistribution str2)

Parameters

Type	Name	Description
String	concat	Constant value for concat.
StringDistribution	str1	Incoming message from str1.
StringDistribution	str2	Incoming message from str2.

Returns

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

Remarks

The formula for the result is log(sum_(str1,str2) p(str1,str2) factor(concat,str1,str2)). Adding up these values across all factors and variables gives the log-evidence estimate for EP.

Str1AverageConditional(StringDistribution, StringDistribution)

EP message to str1.

Declaration

public static StringDistribution Str1AverageConditional(StringDistribution concat, StringDistribution str2)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
StringDistribution	str2	Incoming message from str2.

Returns

Type	Description
StringDistribution	The outgoing EP message to the str1 argument.

Remarks

The outgoing message is a distribution matching the moments of str1 as the random arguments are varied. The formula is proj[p(str1) sum_(concat,str2) p(concat,str2) factor(concat,str1,str2)]/p(str1).

Str2AverageConditional(StringDistribution, StringDistribution)

EP message to str2.

Declaration

public static StringDistribution Str2AverageConditional(StringDistribution concat, StringDistribution str1)

Parameters

Type	Name	Description
StringDistribution	concat	Incoming message from concat.
StringDistribution	str1	Incoming message from str1.

Returns

Type	Description
StringDistribution	The outgoing EP message to the str2 argument.

Remarks

The outgoing message is a distribution matching the moments of str2 as the random arguments are varied. The formula is proj[p(str2) sum_(concat,str1) p(concat,str1) factor(concat,str1,str2)]/p(str2).