update

app.py

@@ -362,7 +362,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
             )
             type_of_nns_dropdown = gr.Dropdown(
                 label="Type of NNs",
-                choices=["top1", "topK"],
+                choices=["top1", "topk"],
                 value="top1",
             )