private GraphNet LoadSparqlGraphNet()
{
var gn = new SparqlSyntaxNet();
//gn.MaxNumberOfPaths = 5;
//gn.MaxPathLenght = 10;
gn.RegisterDynamic("parse", (node, graph) => {
node.ShortId = node.ShortId.Replace(SparqlSyntaxNet.IRI_PREFIX, "");
var q = new QueryGraphNet("x")
{
QueryText = node.ShortId
};
var current = q.LastWordAsNode();
if (current != null)
{
node.AddEdge(graph.Node("current"), graph.Node(current.ShortId));
}
Node.BaseOnAdd(node, graph);
});
gn.DefaultInput = "parse";
gn.TrainFromQueries(
"select * where { ?s ?p ?o }",
"select ?p where { ?s ?p ?o }",
"select * where { ?s <http://test.com/name> ?name }",
"select * where { ?s <http://test.com/other> ?other }"
);
return(gn);
}
private GraphNet LoadQueryNet()
{
var gn = new QueryGraphNet("Test_Query");
gn.LimitNumberOfPaths = true;
gn.PrefixLoader = (uri, graph) =>
{
//TODO: I think this loader should just return the nodes should this
var net = graph as PredicateNet;
if (net != null)
{
net.Add("p:name", "http://www.w3.org/2000/01/rdf-schema#domain", "p:Place");
net.Add("p:code", "http://www.w3.org/2000/01/rdf-schema#domain", "p:Place");
net.Add(net.GetPrefixNamespaceNode(), net.Node("has"), graph.Node("p:name"));
net.Add(net.GetPrefixNamespaceNode(), net.Node("has"), graph.Node("p:code"));
}
};
gn.RegisterDynamic("parse", (node, graph) => {
gn.QueryText = node.ShortId.ToString().Replace("http://graph.network.com/ld/", "");
node.ShortId = gn.QueryText;
var lastWord = gn.LastWordAsNode();
if (lastWord != null && node.Edges.Count == 0)
{
node.AddEdge(graph.Node("current"), lastWord);
}
Node.BaseOnAdd(node, graph);
});
gn.DefaultInput = "parse";
gn.TrainFromQueries(
"PREFIX p: <http://test.com/places/> select * where { ?s a p:City . ?s p:mayor ?mayor }",
"PREFIX p: <http://test.com/places/> select * where { ?s a p:Country . ?s p:flag ?flag }",
"select * where { ?s p:name ?name }",
"select * where { ?s ?p ?o }"
);
return(gn);
}
public void TestSimpleQuery()
{
var gn = new QueryGraphNet("Test_Query", maxNumberOfPaths: 10, maxPathLenght: 20);
gn.LimitNumberOfPaths = true;
gn.PrefixLoader = (uri, graph) =>
{
graph.Add("p:name", "http://www.w3.org/2000/01/rdf-schema#domain", "p:Place");
graph.Add("p:code", "http://www.w3.org/2000/01/rdf-schema#domain", "p:Place");
var net = graph as PredicateNet;
net.Add(net.GetPrefixNamespaceNode(), net.Node("has"), graph.Node("p:name"));
net.Add(net.GetPrefixNamespaceNode(), net.Node("has"), graph.Node("p:code"));
};
//TODO: move this code into the QueryGraphNet as really it is core to how it works
gn.RegisterDynamic("parse", (node, graph) => {
gn.QueryText = node.ShortId.ToString().Replace("http://graph.network.com/ld/", "");
var lastWord = gn.LastWordAsNode();
if (lastWord != null && node.Edges.Count == 0)
{
node.AddEdge(graph.Node("current"), lastWord);
}
Node.BaseOnAdd(node, graph);
});
gn.DefaultInput = "parse";
gn.TrainFromQueries(
"PREFIX p: <http://test.com/places/> select * where { ?s a p:City . ?s p:name ?mayor }",
"PREFIX p: <http://test.com/places/> select * where { ?s a p:Country . ?s p:name ?flag }"
);
Assert.AreEqual("where", gn.Predict("PREFIX p: <http://test.com/places/> SELECT *"));
Assert.AreEqual("{", gn.Predict("PREFIX p: <http://test.com/places/> SELECT * WHERE"));
Assert.AreEqual("name", gn.Predict("PREFIX p: <http://test.com/places/> SELECT * WHERE {?s p:}"));
//TODO: Assert.AreEqual("p:name", gn.Predict("PREFIX p: <http://test.com/places/> SELECT * WHERE {?s }"));
}