#725 added new query to notebook to add direct edge

Author: charlesivie

src/graph_notebook/notebooks/02-Neptune-Analytics/04-OpenCypher-Over-RDF/02-Air-Routes-GeoNames.ipynb

@@ -63,7 +63,6 @@
    "execution_count": null,
    "id": "98bf6d5e82a415f6",
    "metadata": {
-    "collapsed": false,
     "jupyter": {
      "outputs_hidden": false
     },
@@ -277,6 +276,39 @@
     "RETURN gn_country, matches, ar_country"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "31766ec9",
+   "metadata": {},
+   "source": [
+    "### Modifying the linked data graph\n",
+    "\n",
+    "We can use openCypher to insert new edges, creating alternative connections within the data to simplify querying and pathfinding.\n",
+    "\n",
+    "Execute the following query to extend the model. It adds a direct edge between airports whenever a direct route exists, allowing for more efficient traversal.\n",
+    "\n",
+    "This modification, known as \"edge shortcutting\" or \"transitive edge creation,\" is a common technique in graph data modeling to enhance pathfinding efficiency and speed up queries. It is particularly useful when integrating large graphs into a unified structure."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "b8e296aa",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%%oc\n",
+    "\n",
+    "PREFIX nepo: <http://neptune.aws.com/ontology/airroutes/>\n",
+    "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n",
+    "\n",
+    "MATCH (origin: nepo::Airport)\n",
+    "        <-[:nepo::source]-(r: nepo::Route)-[:nepo::destination]->\n",
+    "      (destination: nepo::Airport)\n",
+    "\n",
+    "CREATE (origin)-[:nepo::hasDirectRouteTo]->(destination)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "e19cbac4",
@@ -328,7 +360,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.13"
+   "version": "3.10.8"
   }
  },
  "nbformat": 4,