added Hybrid Search with BM25

app.py

@@ -272,7 +272,11 @@ class BSIChatbot:
         #print(vectorstore.index_to_docstore_id)
         print(vectorstore)
         # Iteriere über alle IDs im index_to_docstore_id
-        for doc_id in vectorstore.index_to_docstore_id.values():
+
+        docs = vectorstore.max_marginal_relevance_search("",9999,9999,0)
+
+        #for doc_id in vectorstore.index_to_docstore_id.values():
+        for doc_id in docs:
             # Hole das Dokument aus dem docstore
             #print("DBG:"+doc_id)
             document = vectorstore.get_by_ids(doc_id)