Added affliations for irt router

Author: shenrunzhang

src/components/DatasetCompositionChart.tsx

@@ -335,11 +335,11 @@ const DatasetCompositionChart: React.FC = () => {
               // Adaptive label radius: farther for sides, closer for top/bottom
               const baseOffset = 60;   // baseline distance beyond pie edge
               const sideBoost = 40;    // extra distance for left/right labels
-              const angleFactor = Math.abs(Math.sin(midAngle * RADIAN)); 
+              const angleFactor = Math.abs(Math.sin(midAngle * RADIAN));
               // 0 for top/bottom, 1 for sides
 
               const radius = CHART_DIMENSIONS.outerRadius + baseOffset + sideBoost * angleFactor;
-                          
+
               // Use exact center coordinates matching Recharts
               const centerX = 400; // Exact center of 800x800 viewBox
               const centerY = 400; // Exact center of 800x800 viewBox

src/data/mockData.ts

@@ -84,7 +84,7 @@ export const routers: Router[] = [
     name: 'MIRT-BERT',
     type: 'academic',
     description: 'Multi-item response theory with BERT embeddings',
-    affiliation: 'Unknown',
+    affiliation: 'USTC',
     metrics: {
       arenaScore: 0.78,
       costRatioScore: 0.75,
@@ -102,7 +102,7 @@ export const routers: Router[] = [
     name: 'NIRT-BERT',
     type: 'academic',
     description: 'Neural item response theory with BERT-based routing',
-    affiliation: 'Unknown',
+    affiliation: 'USTC',
     metrics: {
       arenaScore: 0.76,
       costRatioScore: 0.70,

src/pages/HomePage.tsx

@@ -70,8 +70,7 @@ const HomePage: React.FC = () => {
                 <div className="cta-card">
                   <h3 className="cta-heading">Want to see your router on the leaderboard?</h3>
                   <p className="cta-description">
-                  Open a GitHub issue on our RouterArena platform.
-                  Open a GitHub issue on our RouterArena platform.
+                  Email us or open a GitHub issue on RouterArena.
                   </p>
                   <a href="#contact" className="btn btn-primary">
                     Get Started →
@@ -249,7 +248,7 @@ const HomePage: React.FC = () => {
         <div className="container">
           <h2 className="section-title">Research Team</h2>
           <p className="contact-description">
-            Contact us or submit a GitHub issue to evaluate your router with RouterArena 
+            Contact us or submit a GitHub issue to evaluate your router with RouterArena
           </p>
 
           {/* Action Buttons */}

src/pages/LeaderboardPage.css

@@ -558,7 +558,7 @@
   :root {
     --lb-grid: 70px 250px 120px 100px repeat(5, 120px);
   }
-  
+
   .leaderboard-header,
   .leaderboard-row {
     gap: 0.75rem;

src/pages/LeaderboardPage.tsx

@@ -295,16 +295,16 @@ const LeaderboardPage: React.FC = () => {
             <div className="metric-card">
               <h3>Cost Ratio Score</h3>
               <p>
-                Evaluates routing efficiency relative to an oracle.
-                Routers with higher scores achieve comparable accuracy at lower inference cost.
+              Measures the performance a router achieves per unit of cost compared to the benchmarked routers.
+              A high score means it maintains strong accuracy while spending less on average across all queries.
               </p>
             </div>
 
             <div className="metric-card">
               <h3>Optimality Score</h3>
               <p>
-                Measures how often a router selects the cheapest correct model.
-                Higher values reflect closer alignment to cost-optimal routing behavior.
+              Captures how the router's ability to select the cheapest model that still produces a correct response.
+              High values indicate decisions that closely match ideal, cost-minimizing routing behavior.
               </p>
             </div>