nodeWord.setAssignment(data.get(i)); nodeWord.getSufficientStatistics().multiplyBy(data.get(i).getValue(wordCountAtt));
nodeWord.setAssignment(data.get(i)); nodeWord.getSufficientStatistics().multiplyBy(data.get(i).getValue(wordCountAtt));
private double computeELBO() { double elbo = this.vmp.getNodes().parallelStream().filter(node -> node.isActive() && !node.isObserved()).mapToDouble(node -> this.vmp.computeELBO(node)).sum(); elbo += this.vmp.getNodes() .parallelStream() .filter(node -> node.isActive() && node.isObserved()).mapToDouble(node -> { EF_BaseDistribution_MultinomialParents base = (EF_BaseDistribution_MultinomialParents) node.getPDist(); Variable topicVariable = (Variable) base.getMultinomialParents().get(0); Map<Variable, MomentParameters> momentParents = node.getMomentParents(); double localELBO = 0; MomentParameters topicMoments = momentParents.get(topicVariable); int wordIndex = (int) node.getAssignment().getValue(node.getMainVariable())%node.getMainVariable().getNumberOfStates(); for (int i = 0; i < topicMoments.size(); i++) { EF_SparseMultinomial_Dirichlet dist = (EF_SparseMultinomial_Dirichlet)base.getBaseEFConditionalDistribution(i); MomentParameters dirichletMoments = momentParents.get(dist.getDirichletVariable()); localELBO += node.getSufficientStatistics().get(wordIndex)*dirichletMoments.get(wordIndex)*topicMoments.get(i); } return localELBO; }).sum(); return elbo; }
EF_SparseMultinomial_Dirichlet dist = (EF_SparseMultinomial_Dirichlet)base.getBaseEFConditionalDistribution(i); MomentParameters dirichletMoments = momentParents.get(dist.getDirichletVariable()); localELBO += node.getSufficientStatistics().get(wordIndex)*dirichletMoments.get(wordIndex)*topicMoments.get(i);