private static void computeGraphStatistics(
RDFDataSet tripleStore, ClassificationDataSet ds, boolean[] inference, int[] depths) {
Map<Boolean, Map<Integer, Pair<Double, Double>>> stats =
new HashMap<Boolean, Map<Integer, Pair<Double, Double>>>();
for (boolean inf : inference) {
stats.put(inf, new HashMap<Integer, Pair<Double, Double>>());
for (int depth : depths) {
Set<Statement> st =
RDFUtils.getStatements4Depth(tripleStore, ds.getRDFData().getInstances(), depth, inf);
st.removeAll(ds.getRDFData().getBlackList());
DTGraph<String, String> graph = RDFUtils.statements2Graph(st, RDFUtils.REGULAR_LITERALS);
List<DTNode<String, String>> instanceNodes =
RDFUtils.findInstances(graph, ds.getRDFData().getInstances());
graph = RDFUtils.simplifyInstanceNodeLabels(graph, instanceNodes);
GraphList<DTGraph<String, String>> graphs =
RDFUtils.getSubGraphs(graph, instanceNodes, depth);
double v = 0;
double e = 0;
for (DTGraph<String, String> g : graphs.getGraphs()) {
v += g.nodes().size();
e += g.links().size();
}
v /= graphs.numInstances();
e /= graphs.numInstances();
stats.get(inf).put(depth, new Pair<Double, Double>(v, e));
}
}
for (boolean k1 : stats.keySet()) {
System.out.println("Inference: " + k1);
for (int k2 : stats.get(k1).keySet()) {
System.out.println(
"Depth "
+ k2
+ ", vertices: "
+ (stats.get(k1).get(k2).getFirst())
+ " , edges: "
+ (stats.get(k1).get(k2).getSecond()));
}
}
}
private void init(DTGraph<String, String> graph, List<DTNode<String, String>> instances) {
DTNode<StringLabel, StringLabel> startV;
List<DTNode<String, String>> frontV, newFrontV;
List<Pair<DTNode<StringLabel, StringLabel>, Integer>> vertexIndexMap;
List<Pair<DTLink<StringLabel, StringLabel>, Integer>> edgeIndexMap;
Map<DTNode<String, String>, DTNode<StringLabel, StringLabel>> vOldNewMap =
new HashMap<DTNode<String, String>, DTNode<StringLabel, StringLabel>>();
Map<DTLink<String, String>, DTLink<StringLabel, StringLabel>> eOldNewMap =
new HashMap<DTLink<String, String>, DTLink<StringLabel, StringLabel>>();
instanceVertices = new ArrayList<DTNode<StringLabel, StringLabel>>();
instanceVertexIndexMap =
new HashMap<
DTNode<StringLabel, StringLabel>,
List<Pair<DTNode<StringLabel, StringLabel>, Integer>>>();
instanceEdgeIndexMap =
new HashMap<
DTNode<StringLabel, StringLabel>,
List<Pair<DTLink<StringLabel, StringLabel>, Integer>>>();
rdfGraph = new LightDTGraph<StringLabel, StringLabel>();
for (DTNode<String, String> oldStartV : instances) {
vertexIndexMap = new ArrayList<Pair<DTNode<StringLabel, StringLabel>, Integer>>();
edgeIndexMap = new ArrayList<Pair<DTLink<StringLabel, StringLabel>, Integer>>();
// Get the start node
if (vOldNewMap.containsKey(oldStartV)) {
startV = vOldNewMap.get(oldStartV);
} else {
startV = rdfGraph.add(new StringLabel());
vOldNewMap.put(oldStartV, startV);
}
startV.label().clear();
startV.label().append(oldStartV.label());
instanceVertices.add(startV);
instanceVertexIndexMap.put(startV, vertexIndexMap);
instanceEdgeIndexMap.put(startV, edgeIndexMap);
frontV = new ArrayList<DTNode<String, String>>();
frontV.add(oldStartV);
// Process the start node
vertexIndexMap.add(new Pair<DTNode<StringLabel, StringLabel>, Integer>(startV, depth));
for (int j = depth - 1; j >= 0; j--) {
newFrontV = new ArrayList<DTNode<String, String>>();
for (DTNode<String, String> qV : frontV) {
for (DTLink<String, String> edge : qV.linksOut()) {
if (vOldNewMap.containsKey(edge.to())) { // This vertex has been added to rdfGraph
vertexIndexMap.add(
new Pair<DTNode<StringLabel, StringLabel>, Integer>(
vOldNewMap.get(edge.to()), j));
vOldNewMap.get(edge.to()).label().clear();
vOldNewMap.get(edge.to()).label().append(edge.to().label());
} else {
DTNode<StringLabel, StringLabel> newN = rdfGraph.add(new StringLabel());
newN.label().clear();
newN.label().append(edge.to().label());
vOldNewMap.put(edge.to(), newN);
vertexIndexMap.add(new Pair<DTNode<StringLabel, StringLabel>, Integer>(newN, j));
}
if (eOldNewMap.containsKey(edge)) {
edgeIndexMap.add(
new Pair<DTLink<StringLabel, StringLabel>, Integer>(eOldNewMap.get(edge), j));
eOldNewMap.get(edge).tag().clear();
eOldNewMap.get(edge).tag().append(edge.tag());
} else {
DTLink<StringLabel, StringLabel> newE =
vOldNewMap.get(qV).connect(vOldNewMap.get(edge.to()), new StringLabel());
newE.tag().clear();
newE.tag().append(edge.tag());
eOldNewMap.put(edge, newE);
edgeIndexMap.add(new Pair<DTLink<StringLabel, StringLabel>, Integer>(newE, j));
}
// Add the vertex to the new front, if we go into a new round
if (j > 0) {
newFrontV.add(edge.to());
}
}
}
frontV = newFrontV;
}
}
}
