diff --git a/sam_graph/index.html b/sam_graph/index.html
index 7d650d8..d51af09 100644
--- a/sam_graph/index.html
+++ b/sam_graph/index.html
@@ -26,8 +26,8 @@ <h5>
               <a href="https://pengsida.net" target="_blank">Sida Peng</a><sup>1</sup>,
               <a href="https://github.com/angshine" target="_blank">Yuang Wang</a><sup>1</sup>,
               <a href="https://shenyujun.github.io/" target="_blank">Yujun Shen</a><sup>3</sup>,
-              <a href="https://csse.szu.edu.cn/staff/ruizhenhu/" target="_blank">Ruizhen Hu</a><sup>4</sup>,
-              <a href="https://xzhou.me" target="_blank">Xiaowei Zhou</a><sup>1</sup>
+              <a href="https://csse.szu.edu.cn/staff/ruizhenhu/" target="_blank">Ruizhen Hu</a><sup>4†</sup>,
+              <a href="https://xzhou.me" target="_blank">Xiaowei Zhou</a><sup>1†</sup>
             </h5>
             <p><sup>1</sup>Zhejiang University &nbsp;&nbsp; 
                 <sup>2</sup>Beijing Normal University &nbsp;&nbsp; 
@@ -36,7 +36,9 @@ <h5>
                 <br>
                 <sup>*</sup> Equal contribution.
                 <br>
-                <sup>^</sup> Work done during internship at Zhejiang University. </p>
+                <sup>^</sup> Work done during internship at Zhejiang University. 
+                <br>
+                <sup>†</sup> Corresponding authors. </p>
                 
 
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