minor nits

index.html

@@ -21,7 +21,7 @@
     <h1>FreshStack Leaderboard</h1>
     <p class="subtitle">Realistic Retrieval Benchmarking on Technical Documentation</p>
     <p class="intro">
-      FreshStack evaluates retrieval models on five domains: <b>LangChain</b>, <b>Yolo v7 &amp; v8</b>, <b>Laravel 10 &amp; 11</b>,
+      FreshStack is a holistic framework for building realistic & challenging RAG benchmarks from community-asked questions and answers on niche and fast-growing domains. FreshStack evaluates retrieval models on five domains: <b>LangChain</b>, <b>Yolo v7 &amp; v8</b>, <b>Laravel 10 &amp; 11</b>,
       <b>Angular 16, 17 &amp; 18</b>, and <b>Godot4</b>. Metrics include <b>alpha-nDCG@10</b>, <b>Coverage@20</b>, and <b>Recall@50</b>.
     </p>
 
@@ -35,9 +35,9 @@
     </div>
 
     <div id="metrics-panel" class="panel hidden">
-      <p><b>alpha-nDCG@10 (α@10)</b>: diversity-aware ranking quality in top results.</p>
-      <p><b>Coverage@20 (C@20)</b>: fraction of nuggets supported by top-20 retrieved chunks.</p>
-      <p><b>Recall@50 (R@50)</b>: fraction of relevant chunks recovered in top-50.</p>
+      <p><b>alpha-nDCG@10 (α@10)</b>: diversity-aware ranking metric based on nDCG@10 but penalizes redundant documents (i.e., documents supporting the same nugget) by a geometric factor of alpha. Read more in <a href="https://dl.acm.org/doi/abs/10.1145/1390334.1390446" target="_blank">[Clarke et al. 2008]</a>.</p>
+      <p><b>Coverage@20 (C@20)</b>: fraction of unique nuggets supported by top-20 retrieved documents. Defined in our <a href="https://openreview.net/forum?id=54TTgXlS2U" target="_blank">[paper]</a>.</p>
+      <p><b>Recall@50 (R@50)</b>: traditional retrieval metric measuring the fraction of relevant documents retrieved in top-50 documents.</p>
     </div>
 
     <div id="submit-panel" class="panel hidden">
@@ -45,11 +45,11 @@
       <p><a href="https://github.com/fresh-stack/fresh-stack.github.io/blob/master/leaderboard_data.json" target="_blank">Open leaderboard_data.json</a></p>
       <textarea readonly rows="14">{
   "info": {
-    "name": "Your Model Name",
-    "size": "600M",
-    "type": "open_source",
-    "date": "2026-04-07",
-    "link": "https://model-or-paper-link"
+    "name": "Your Model Name", // try to follow the format of other models
+    "size": "600M", // in millions (<1B) or billions (7B)
+    "type": "open_source", // open_source, proprietary
+    "date": "2026-04-07", // date of model release
+    "link": "https://model-or-paper-link" // link to model or documentation
   },
   "datasets": {
     "langchain": {"alpha_ndcg_10": 0.000, "coverage_20": 0.000, "recall_50": 0.000},

main.js

@@ -43,6 +43,15 @@ function typeBadge(type) {
   return `<span class="type-pill type-${type}">${labels[type] || type}</span>`;
 }
 
+function isNewModel(dateStr) {
+  if (!dateStr) return false;
+  const modelDate = new Date(dateStr);
+  if (Number.isNaN(modelDate.getTime())) return false;
+  const now = new Date();
+  const daysDiff = (now - modelDate) / (1000 * 60 * 60 * 24);
+  return daysDiff >= 0 && daysDiff <= 90;
+}
+
 function parseSizeToBillions(sizeStr) {
   if (!sizeStr || sizeStr === '-') return null;
   const m = String(sizeStr).trim().match(/^([\d.]+)\s*([BMK])$/i);
@@ -163,7 +172,10 @@ function renderBody() {
   bodyRow.innerHTML = filtered.map((r, idx) => `
     <tr>
       <td>${idx + 1}</td>
-      <td class="model-cell">${r.link ? `<a href="${r.link}" target="_blank">${r.name}</a>` : r.name}</td>
+      <td class="model-cell">
+        ${r.link ? `<a href="${r.link}" target="_blank">${r.name}</a>` : r.name}
+        ${isNewModel(r.date) ? '<span class="new-badge">🆕</span>' : ''}
+      </td>
       <td>${typeBadge(r.type)}</td>
       <td>${r.size || '-'}</td>
       <td>${r.date || '-'}</td>

style.css

@@ -104,6 +104,7 @@ tbody tr:hover { background: #f8fbff; }
 .model-cell { font-weight: 600; max-width: 360px; overflow: hidden; text-overflow: ellipsis; }
 .model-cell a { color: #1d4ed8; text-decoration: none; }
 .model-cell a:hover { text-decoration: underline; }
+.new-badge { margin-left: 6px; font-size: 0.9em; vertical-align: middle; }
 .avg-score { color: #1d4ed8; font-weight: 700; }
 .type-pill {
   display: inline-flex;