Final changes

app.py

@@ -15,7 +15,7 @@ with open("model/sbert_embeddings2.pkl", "rb") as f:
 
 # Load models
 retriever_model = SentenceTransformer("all-mpnet-base-v2")  # More accurate than MiniLM
-reranker_model = CrossEncoder("cross-encoder/all-MiniLM-L6-v2") 
+reranker_model = CrossEncoder("cross-encoder/ms-marco-MiniLM-L-6-v2")  # More accurate ranking
 
 def fetch_summary_duckduckgo(book_title, log):
     """Fetch book summary from DuckDuckGo API (search engine)."""