diff --git a/topomodelx/nn/simplicial/scone.py b/topomodelx/nn/simplicial/scone.py
index bc533eaa..a4fe0ad9 100644
--- a/topomodelx/nn/simplicial/scone.py
+++ b/topomodelx/nn/simplicial/scone.py
@@ -109,6 +109,7 @@ def __init__(
         # Lookup table used to speed up vectorizing of trajectories
         self.edge_lookup_table = {}
         for i, edge in enumerate(self.sc.skeleton(1)):
+            edge = tuple(edge)
             self.edge_lookup_table[edge] = (1, i)
             self.edge_lookup_table[edge[::-1]] = (-1, i)
 
diff --git a/tutorials/cell/ccxn_train.ipynb b/tutorials/cell/ccxn_train.ipynb
index 2005fa75..1c22dd18 100644
--- a/tutorials/cell/ccxn_train.ipynb
+++ b/tutorials/cell/ccxn_train.ipynb
@@ -134,7 +134,6 @@
    "source": [
     "shrec, _ = tnx.datasets.shrec_16(size=\"small\")\n",
     "\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
@@ -634,13 +633,6 @@
     "                flush=True,\n",
     "            )"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
diff --git a/tutorials/cell/cwn_train.ipynb b/tutorials/cell/cwn_train.ipynb
index 55959c8d..58ff2497 100644
--- a/tutorials/cell/cwn_train.ipynb
+++ b/tutorials/cell/cwn_train.ipynb
@@ -154,7 +154,6 @@
    "source": [
     "shrec, _ = tnx.datasets.shrec_16(size=\"small\")\n",
     "\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
@@ -578,13 +577,6 @@
     "                flush=True,\n",
     "            )"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
diff --git a/tutorials/hypergraph/dhgcn_train.ipynb b/tutorials/hypergraph/dhgcn_train.ipynb
index a15d0a74..b9f2b4ef 100644
--- a/tutorials/hypergraph/dhgcn_train.ipynb
+++ b/tutorials/hypergraph/dhgcn_train.ipynb
@@ -100,7 +100,6 @@
    "source": [
     "shrec, _ = tnx.datasets.mesh.shrec_16(size=\"small\")\n",
     "\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
@@ -109,26 +108,6 @@
     "simplexes = shrec[\"complexes\"]"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 4,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "((100,), (100, 750, 10), (100, 500, 7), (100,), (100,))"
-      ]
-     },
-     "execution_count": 4,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "x_0s.shape, x_1s.shape, x_2s.shape, ys.shape, simplexes.shape"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": 5,
diff --git a/tutorials/hypergraph/hypergat_train.ipynb b/tutorials/hypergraph/hypergat_train.ipynb
index cc7bdf59..329752dd 100644
--- a/tutorials/hypergraph/hypergat_train.ipynb
+++ b/tutorials/hypergraph/hypergat_train.ipynb
@@ -114,7 +114,6 @@
    "source": [
     "shrec, _ = tnx.datasets.shrec_16(size=\"small\")\n",
     "\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
diff --git a/tutorials/simplicial/sccnn_train.ipynb b/tutorials/simplicial/sccnn_train.ipynb
index 27c14178..4cc140a4 100644
--- a/tutorials/simplicial/sccnn_train.ipynb
+++ b/tutorials/simplicial/sccnn_train.ipynb
@@ -113,7 +113,7 @@
    ],
    "source": [
     "shrec, _ = tnx.datasets.shrec_16(size=\"small\")\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
+    "\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
@@ -977,13 +977,6 @@
     "            )\n",
     "            print(f\"Test_acc: {test_accuracy:.4f}\", flush=True)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
diff --git a/tutorials/simplicial/scn2_train.ipynb b/tutorials/simplicial/scn2_train.ipynb
index b42778f5..7b37e0ec 100644
--- a/tutorials/simplicial/scn2_train.ipynb
+++ b/tutorials/simplicial/scn2_train.ipynb
@@ -93,7 +93,6 @@
    "source": [
     "shrec, _ = tnx.datasets.shrec_16(size=\"small\")\n",
     "\n",
-    "shrec = {key: np.array(value) for key, value in shrec.items()}\n",
     "x_0s = shrec[\"node_feat\"]\n",
     "x_1s = shrec[\"edge_feat\"]\n",
     "x_2s = shrec[\"face_feat\"]\n",
@@ -461,13 +460,6 @@
     "                test_loss = loss_fn(y_hat, y)\n",
     "            print(f\"Test_loss: {test_loss:.4f}\", flush=True)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
diff --git a/tutorials/simplicial/scone_train.ipynb b/tutorials/simplicial/scone_train.ipynb
index 3d8b023a..7fb73b42 100644
--- a/tutorials/simplicial/scone_train.ipynb
+++ b/tutorials/simplicial/scone_train.ipynb
@@ -191,6 +191,7 @@
     "    \"\"\"\n",
     "    # Plot triangles\n",
     "    for idx in sc.skeleton(2):\n",
+    "        idx = tuple(idx)\n",
     "        pts = np.array([coords[idx[0]], coords[idx[1]], coords[idx[2]]])\n",
     "        poly = plt.Polygon(pts, color=\"green\", alpha=0.25)\n",
     "        plt.gca().add_patch(poly)\n",
@@ -397,6 +398,7 @@
     "        # Lookup table used to speed up vectorizing of trajectories\n",
     "        self.edge_lookup_table = {}\n",
     "        for i, edge in enumerate(self.sc.skeleton(1)):\n",
+    "            edge = tuple(edge)\n",
     "            self.edge_lookup_table[edge] = (1, i)\n",
     "            self.edge_lookup_table[edge[::-1]] = (-1, i)\n",
     "\n",