Search optimizations (#280)

fix node distance search

Author: prasmussen15

graphiti_core/search/search_utils.py

@@ -229,8 +229,8 @@ async def edge_similarity_search(
 
     query: LiteralString = (
         """
-                                                                            MATCH (n:Entity)-[r:RELATES_TO]->(m:Entity)
-                                                                            """
+                                                                                MATCH (n:Entity)-[r:RELATES_TO]->(m:Entity)
+                                                                                """
         + group_filter_query
         + filter_query
         + """\nWITH DISTINCT r, vector.similarity.cosine(r.fact_embedding, $search_vector) AS score
@@ -765,8 +765,9 @@ async def node_distance_reranker(
     # rerank on shortest distance
     filtered_uuids.sort(key=lambda cur_uuid: scores[cur_uuid])
 
-    # add back in filtered center uuid
-    filtered_uuids = [center_node_uuid] + filtered_uuids
+    # add back in filtered center uuid if it was filtered out
+    if center_node_uuid in node_uuids:
+        filtered_uuids = [center_node_uuid] + filtered_uuids
 
     return filtered_uuids
 

graphiti_core/utils/maintenance/node_operations.py

@@ -172,7 +172,9 @@ async def extract_nodes(
     new_nodes = []
     for name in extracted_node_names:
         entity_type = node_classifications.get(name)
-        labels = ['Entity'] if entity_type is None else ['Entity', entity_type]
+        labels = (
+            ['Entity'] if entity_type is None or entity_type == 'None' else ['Entity', entity_type]
+        )
 
         new_node = EntityNode(
             name=name,

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "graphiti-core"
-version = "0.7.3"
+version = "0.7.4"
 description = "A temporal graph building library"
 authors = [
     "Paul Paliychuk <paul@getzep.com>",

tests/test_graphiti_int.py

@@ -29,6 +29,7 @@
 from graphiti_core.search.search_config_recipes import (
     COMBINED_HYBRID_SEARCH_CROSS_ENCODER,
 )
+from graphiti_core.search.search_filters import SearchFilters
 
 pytestmark = pytest.mark.integration
 
@@ -71,6 +72,7 @@ async def test_graphiti_init():
         'My name is Alice',
         COMBINED_HYBRID_SEARCH_CROSS_ENCODER,
         group_ids=['test'],
+        search_filter=SearchFilters(node_labels=['Entity']),
     )
 
     pretty_results = {