Examples with Factor com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor used on opensource projects

Example 1 with Factor

use of com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor in project aic-praise by aic-sri-international.

the class Polytopes method makeProductOfFactors.

private static Factor makeProductOfFactors(List<? extends AtomicPolytope> convexHulls) {
    List<Factor> factors = collectFactorsFromIntensionalPolytopes(convexHulls);
    Factor productOfFactors = Factor.multiply(factors);
    return productOfFactors;
}

Example 2 with Factor

use of com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor in project aic-praise by aic-sri-international.

the class Polytopes method makeProjectedPolytopeOfIntensionalConvexHull.

private static Polytope makeProjectedPolytopeOfIntensionalConvexHull(List<? extends Variable> variablesToBeSummedOut, List<Polytope> dependentOfVariablesToBeSummedOut) {
    List<Variable> simplexVariables = collectSimplexVariables(dependentOfVariablesToBeSummedOut);
    List<Variable> indicesFromConvexHulls = collectIndicesFromIntensionalPolytopes(dependentOfVariablesToBeSummedOut);
    List<Factor> factors = collectFactorsFromIntensionalPolytopes(dependentOfVariablesToBeSummedOut);
    Factor productOfFactors = Factor.multiply(factors);
    List<? extends Variable> variablesToBeSummedOutOnceSimplexesAreDealtWith = subtract(variablesToBeSummedOut, simplexVariables);
    Factor projectedFactor = productOfFactors.sumOut(variablesToBeSummedOutOnceSimplexesAreDealtWith);
    List<Variable> finalIndices = union(indicesFromConvexHulls, simplexVariables);
    Polytope projectedPolytope = new IntensionalConvexHullOfFactors(finalIndices, projectedFactor);
    return projectedPolytope;
}

Example 3 with Factor

use of com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor in project aic-praise by aic-sri-international.

the class Polytopes method mergeIntensionalConvexHulls.

private static IntensionalConvexHullOfFactors mergeIntensionalConvexHulls(List<? extends AtomicPolytope> convexHulls) {
    List<Variable> indicesFromConvexHulls = collectIndicesFromIntensionalPolytopes(convexHulls);
    Factor productOfFactors = makeProductOfFactors(convexHulls);
    IntensionalConvexHullOfFactors result = new IntensionalConvexHullOfFactors(indicesFromConvexHulls, productOfFactors);
    return result;
}

Example 4 with Factor

use of com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor in project aic-praise by aic-sri-international.

the class ConstantFactor method evaluateAsFactor.

private Factor evaluateAsFactor(Expression expression, Context context) {
    Expression resultFactorExpression = evaluate(expression, context);
    Factor result = makeFactor(resultFactorExpression, context);
    return result;
}

Example 5 with Factor

use of com.sri.ai.praise.core.representation.interfacebased.factor.api.Factor in project aic-praise by aic-sri-international.

the class ConstantFactor method multiply.

@Override
public Factor multiply(Factor another) {
    Factor result = null;
    if (another instanceof ConstantFactor) {
        ConstantFactor anotherConstant = (ConstantFactor) another;
        result = multiplyTwoConstantFactors(anotherConstant);
    } else if (another instanceof ExpressionFactor) {
        ExpressionFactor anotherExpression = (ExpressionFactor) another;
        result = evaluateAsFactor(Times.make(makeSymbol(getConstant()), (Expression) another), anotherExpression.getContext());
    } else if (another instanceof TableFactor) {
        TableFactor anotherTable = (TableFactor) another;
        result = multiplyWithTableFactor(anotherTable);
    } else {
        throw new Error("Unknown class for another : class was " + another.getClass());
    }
    return result;
}