diff --git a/level_4/cognitive_architecture/database/graph_database/graph.py b/level_4/cognitive_architecture/database/graph_database/graph.py
index 3bf827a26..e76cc6531 100644
--- a/level_4/cognitive_architecture/database/graph_database/graph.py
+++ b/level_4/cognitive_architecture/database/graph_database/graph.py
@@ -17,7 +17,7 @@ import openai
 import instructor
 from openai import OpenAI
 from openai import AsyncOpenAI
-
+import pickle
 
 from abc import ABC, abstractmethod
 
@@ -582,10 +582,23 @@ class Neo4jGraphDB(AbstractGraphDB):
             return None
 
 
-class NetworkXGraphDB(AbstractGraphDB):
-    def __init__(self):
-        self.graph = nx.Graph()
-        # Initialize other necessary properties or configurations
+class NetworkXGraphDB:
+    def __init__(self, filename='networkx_graph.pkl'):
+        self.filename = filename
+        try:
+            self.graph = self.load_graph()  # Attempt to load an existing graph
+        except (FileNotFoundError, EOFError, pickle.UnpicklingError):
+            self.graph = nx.Graph()  # Create a new graph if loading failed
+
+    def save_graph(self):
+        """ Save the graph to a file using pickle """
+        with open(self.filename, 'wb') as f:
+            pickle.dump(self.graph, f)
+
+    def load_graph(self):
+        """ Load the graph from a file using pickle """
+        with open(self.filename, 'rb') as f:
+            return pickle.load(f)
 
     def create_base_cognitive_architecture(self, user_id: str):
         # Add nodes for user and memory types if they don't exist
@@ -599,19 +612,24 @@ class NetworkXGraphDB(AbstractGraphDB):
         self.graph.add_edge(user_id, f"{user_id}_episodic", relation='HAS_EPISODIC_MEMORY')
         self.graph.add_edge(user_id, f"{user_id}_buffer", relation='HAS_BUFFER')
 
+        self.save_graph()  # Save the graph after modifying it
+
     def delete_all_user_memories(self, user_id: str):
         # Remove nodes and edges related to the user's memories
         for memory_type in ['semantic', 'episodic', 'buffer']:
             memory_node = f"{user_id}_{memory_type}"
             self.graph.remove_node(memory_node)
 
+        self.save_graph()  # Save the graph after modifying it
+
     def delete_specific_memory_type(self, user_id: str, memory_type: str):
         # Remove a specific type of memory node and its related edges
         memory_node = f"{user_id}_{memory_type.lower()}"
         if memory_node in self.graph:
             self.graph.remove_node(memory_node)
 
-    # Methods for retrieving semantic, episodic, and buffer memories
+        self.save_graph()  # Save the graph after modifying it
+
     def retrieve_semantic_memory(self, user_id: str):
         return [n for n in self.graph.neighbors(f"{user_id}_semantic")]
 
@@ -621,6 +639,35 @@ class NetworkXGraphDB(AbstractGraphDB):
     def retrieve_buffer_memory(self, user_id: str):
         return [n for n in self.graph.neighbors(f"{user_id}_buffer")]
 
+    def generate_graph_semantic_memory_document_summary(self, document_summary, unique_graphdb_mapping_values, document_namespace, user_id):
+        for node, attributes in unique_graphdb_mapping_values.items():
+            self.graph.add_node(node, **attributes)
+            self.graph.add_edge(f"{user_id}_semantic", node, relation='HAS_KNOWLEDGE')
+        self.save_graph()
+
+    def generate_document_summary(self, document_summary, unique_graphdb_mapping_values, document_namespace, user_id):
+        self.generate_graph_semantic_memory_document_summary(document_summary, unique_graphdb_mapping_values, document_namespace, user_id)
+
+    async def get_document_categories(self, user_id):
+        return [self.graph.nodes[n]['category'] for n in self.graph.neighbors(f"{user_id}_semantic") if 'category' in self.graph.nodes[n]]
+
+    async def get_document_ids(self, user_id, category):
+        return [n for n in self.graph.neighbors(f"{user_id}_semantic") if self.graph.nodes[n].get('category') == category]
+
+    def create_document_node(self, document_summary, user_id):
+        d_id = document_summary['d_id']
+        self.graph.add_node(d_id, **document_summary)
+        self.graph.add_edge(f"{user_id}_semantic", d_id, relation='HAS_DOCUMENT')
+        self.save_graph()
+
+    def update_document_node_with_namespace(self, user_id, vectordb_namespace, document_id):
+        if self.graph.has_node(document_id):
+            self.graph.nodes[document_id]['vectordbNamespace'] = vectordb_namespace
+        self.save_graph()
+
+    def get_namespaces_by_document_category(self, user_id, category):
+        return [self.graph.nodes[n].get('vectordbNamespace') for n in self.graph.neighbors(f"{user_id}_semantic") if self.graph.nodes[n].get('category') == category]
+
 class GraphDBFactory:
     def create_graph_db(self, db_type, **kwargs):
         if db_type == 'neo4j':