Update app.py

app.py

@@ -46,8 +46,8 @@ class PDFQAProcessor:
     # )
 
     embeddings = GoogleGenerativeAIEmbeddings(model="models/embedding-001")
-    CHUNK_SIZE = 400
-    CHUNK_OVERLAP = 50
+    CHUNK_SIZE = 450
+    CHUNK_OVERLAP = 80
     text_splitter = RecursiveCharacterTextSplitter(chunk_size=CHUNK_SIZE,chunk_overlap = CHUNK_OVERLAP)
     # persist_directory="./chroma_db"
 
@@ -81,7 +81,7 @@ class PDFQAProcessor:
                 splits,
                 self.embeddings
             )
-            self.retriever = self.vectorstore.as_retriever(search_kwargs={"k": 18})
+            self.retriever = self.vectorstore.as_retriever(search_kwargs={"k": 20})
             return "PDFs processed successfully! Ask your questions now."
         
         except Exception as e: