Update app.py

app.py

@@ -56,9 +56,8 @@ def main():
     num_results = st.sidebar.slider("Number of search results", 1, 50, 5)
 
     vector = query([user_input])
-    st.write(f"**vector**: {vector}")
     # Fetch results
-    if False:
+    if user_input:
         # Get paper IDs
         _, I = faiss_index.search(np.array(vector).astype("float32"), k=num_results)