bm = 40, semantic = 50. hybrid = 40

index_retriever.py

@@ -16,12 +16,12 @@ def create_query_engine(vector_index):
     try:
         bm25_retriever = BM25Retriever.from_defaults(
             docstore=vector_index.docstore, 
-            similarity_top_k=30  
+            similarity_top_k=40  
         )
         
         vector_retriever = VectorIndexRetriever(
             index=vector_index, 
-            similarity_top_k=45,  
+            similarity_top_k=50,  
             similarity_cutoff=0.7
         )
         

utils.py

@@ -279,7 +279,7 @@ def answer_question(question, query_engine, reranker, current_model, chunks_df=N
             question,  
             all_nodes, 
             reranker, 
-            top_k=25,
+            top_k=20,
             min_score_threshold=0.5, 
             diversity_penalty=0.3
         )