update

app.py

@@ -1103,7 +1103,7 @@ with gr.Blocks(theme=theme, css=custom_css) as demo:
                 with gr.Column(scale=1):
                     top_k_dropdown = gr.Dropdown(
                         choices=["3", "5", "10"],
-                        value="5",
+                        value="3",
                         label="Top-K Value",
                         info="Number of most important text segments to highlight"
                     )
@@ -1128,7 +1128,7 @@ with gr.Blocks(theme=theme, css=custom_css) as demo:
             - **Explanation Level**: Determines how the context is segmented for analysis
               - `sentence`: Analyze at sentence level (recommended for most cases)
               - `paragraph`: Analyze at paragraph level (good for longer documents)
-              - `text segment`: Analyze at custom text segments (advanced usage)
+              - `text segment`: Analyze at the level of 100-word text segments (ideal for non-standard document formats)
             
             - **Top-K Value**: Number of most important text segments to highlight in results
               - Higher values show more context but may be less focused