Update utils.py

utils.py

@@ -226,7 +226,7 @@ def document_loading_splitting():
     docs.extend(loader.load())
     ################################
     # Document splitting
-    text_splitter = RecursiveCharacterTextSplitter(chunk_overlap = 250, chunk_size = 2000)
+    text_splitter = RecursiveCharacterTextSplitter(chunk_overlap = 250, chunk_size = 1000)
     splits = text_splitter.split_documents(docs)
     
     return splits
@@ -311,7 +311,7 @@ def llm_chain2(llm, prompt):
 def rag_chain(llm, prompt, db):
     rag_chain = RetrievalQA.from_chain_type(llm, 
                                             chain_type_kwargs = {"prompt": RAG_CHAIN_PROMPT}, 
-                                            retriever = db.as_retriever(search_kwargs = {"k": 3}), 
+                                            retriever = db.as_retriever(search_kwargs = {"k": 5}), 
                                             return_source_documents = True)
     result = rag_chain({"query": prompt})
     return result["result"]