private String getEdgeString(FeatureTree tree, TreeNode parentNode) {
StringBuilder sb = new StringBuilder();
for (TreeNode child : parentNode.getChildren()) {
if (child.getCost() != 0) {
sb.append(getNodeTypeAndDatabaseIdString(tree, parentNode));
sb.append(getNodeTypeAndDatabaseIdString(tree, child));
String value = String.valueOf(child.getValueOfCandidateFeature());
value = fixPlusAndMinusSigns(value);
EdgeLabels.FEATURE_VALUE.setAttributeValue(value);
sb.append(EdgeLabels.FEATURE_VALUE.getDefaultValueString());
sb.append(EdgeLabels.FEATURE_VALUE.toString());
value = String.valueOf(parentNode.getAppliedCandidate());
value = fixPlusAndMinusSigns(value);
EdgeLabels.CANDIDATE_USED.setAttributeValue(value);
sb.append(EdgeLabels.CANDIDATE_USED.toString());
sb.append("\n");
}
}
return sb.toString();
}
private String getNodeString(FeatureTree tree, TreeNode parentNode) {
StringBuilder sb = new StringBuilder();
// each node line begins with this
sb.append("# _attributes ");
String language = tree.getLanguage();
// the default name of the node; here the name of the feature
sb.append(getNodeTypeAndDatabaseIdString(tree, parentNode));
if (parentNode.isRootNode()) {
// add some extra attributes for root node
sb.append(getAttributeString(NodeLabels.TOTAL_COST_OF_TREE, tree.getTotalTreeCost()));
sb.append(getAttributeString(NodeLabels.MODEL_COST_OF_TREE, tree.getModelCost()));
sb.append(getAttributeString(NodeLabels.DATA_COST_OF_TREE, tree.getDataCost()));
sb.append(getAttributeString(NodeLabels.FEATURE_NAME, tree.getFeatureName()));
sb.append(
getAttributeString(
NodeLabels.TREE_LEVEL, tree.getBabyTreeType().toString() + ":" + language));
sb.append(getAttributeString(NodeLabels.TREE_TYPE, tree.getTreeType()));
sb.append(getAttributeString(NodeLabels.COLUMN_LABELS, tree.getColumnLabels()));
if (tree.getClass() == JointlyCodingFeatureTree.class) {
sb.append(getAttributeString(NodeLabels.ROW_LABELS, tree.getRowLabels()));
sb.append(getAttributeString(NodeLabels.ALIGNMENT_TYPE, tree.getAlignmentType()));
}
if (tree.getBabyTreeType() != BabyTreeType.JOINT) {
sb.append(getAttributeString(NodeLabels.POS, getRootNodePositionString(tree, parentNode)));
}
sb.append("queryset=root ");
} else {
// not root node
sb.append(
getAttributeString(
NodeLabels.FILL,
getColor(minEntropy, maxEntropy, computeEntropy(parentNode.getCountMatrix()))));
}
// default label, if not defined, the getNodeDatabaseIdString is shown in nodes instead
sb.append(getAttributeString(NodeLabels.LABEL, getMatrixString(tree, parentNode)));
// attributes that all nodes share
sb.append(getAttributeString(NodeLabels.MATRIX_COST, parentNode.getCost()));
sb.append(getAttributeString(NodeLabels.MATRIX, getMatrixString(tree, parentNode)));
sb.append(
getAttributeString(
NodeLabels.FEATURE_VALUE_IN_PREVIOUS_SPLIT, parentNode.getValueOfCandidateFeature()));
sb.append(
getAttributeString(NodeLabels.NUMBER_OF_CANDIDATES, parentNode.getCandidates().size()));
sb.append(getAttributeString(NodeLabels.ENTROPY, computeEntropy(parentNode.getCountMatrix())));
// inner nodes have been split
if (parentNode.getAppliedCandidate() != null) {
sb.append(getAttributeString(NodeLabels.BEST_CANDIDATE, parentNode.getAppliedCandidate()));
sb.append(
getAttributeString(
NodeLabels.BEST_CANDIDATE_COST, parentNode.getAppliedCandidate().getCost()));
}
sb.append("\n");
return sb.toString();
}
