Examples with Polytope com.sri.ai.praise.core.representation.interfacebased.polytope.api.Polytope used on opensource projects

Example 6 with Polytope

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

the class AbstractAEBPTreeNode method computeProductOfFactorAtRootTimesTheIncomingMessages.

private Polytope computeProductOfFactorAtRootTimesTheIncomingMessages(Predicate<Polytope> boxIt) {
    List<Polytope> polytopesToMultiply = new ArrayList<>(children.size());
    for (AEBPTreeNode<ParentNode, RootNode> child : children) {
        polytopesToMultiply.add(child.messageSent(boxIt));
    }
    // P.S: if the root is a factor: add {(on:) root} to the list; if is a non exhausted variable, add a Simplex(root)
    this.addSimplexOrFactortoTheListOfProducts(polytopesToMultiply);
    Polytope result = accumulate(polytopesToMultiply, Polytope::multiply, identityPolytope());
    return result;
}

Example 7 with Polytope

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

the class AnytimeExactBP method getProductOfAllIncomingPolytopesAndFactorAtRoot.

private Polytope getProductOfAllIncomingPolytopesAndFactorAtRoot(List<Approximation<Factor>> subsApproximations) {
    List<Polytope> polytopesToMultiply = getAllPolytopes(subsApproximations);
    Polytope result = accumulate(polytopesToMultiply, Polytope::multiply, identityPolytope());
    return result;
}

Example 8 with Polytope

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

the class GradientAnytimeExactBP method function.

@Override
public Approximation<Factor> function(List<Approximation<Factor>> subsApproximations) {
    Polytope product = getProductOfAllIncomingPolytopesAndFactorAtRoot(subsApproximations);
    Collection<? extends Variable> freeVariables = product.getFreeVariables();
    List<? extends Variable> variablesSummedOut = getBase().determinedVariablesToBeSummedOut(freeVariables);
    Approximation<Factor> result = sumOut(variablesSummedOut, product);
    return result;
}

Example 9 with Polytope

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

the class GradientAnytimeExactBP method getProductOfAllIncomingPolytopesButOne.

private Polytope getProductOfAllIncomingPolytopesButOne(Anytime<Factor> sub, List<Approximation<Factor>> subsApproximations) {
    Polytope subApproximationToRemove = (Polytope) sub.getCurrentApproximation();
    List<Polytope> polytopesToMultiply = getAllPolytopesButOne(subApproximationToRemove, subsApproximations);
    Polytope result = accumulate(polytopesToMultiply, Polytope::multiply, identityPolytope());
    return result;
}

Example 10 with Polytope

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

the class GradientAnytimeExactBP method sumOutWithoutOneSub.

private Polytope sumOutWithoutOneSub(Anytime<Factor> sub) {
    List<Approximation<Factor>> subsApproximations = getSubsApproximation();
    Polytope product = getProductOfAllIncomingPolytopesButOneAndFactorAtRoot(sub, subsApproximations);
    Collection<? extends Variable> freeVariables = product.getFreeVariables();
    List<? extends Variable> variablesSummedOut = getBase().determinedVariablesToBeSummedOut(freeVariables);
    Polytope result = sumOut(variablesSummedOut, product);
    return result;
}