Update backend/semantic_search.py

backend/semantic_search.py

@@ -45,9 +45,9 @@ def openai_embedding(text, key = None):
   return rs.data[0].embedding
 
 minilm = SentenceTransformer('sentence-transformers/all-MiniLM-L6-v2')
-gtelarge = SentenceTransformer('thenlper/gte-large')
+mpnet = SentenceTransformer('sentence-transformers/all-mpnet-base-v2')
 retrievers['MiniLM'] = lambda t, key: minilm.encode(t)
-retrievers['GteLarge'] = lambda t, key: gtelarge.encode(t)
+retrievers['mpnet'] = lambda t, key: mpnet.encode(t)
 retrievers['OpenAI'] = openai_embedding
 
 # db