update

Author: gitgutgit

index.html

@@ -25,7 +25,7 @@
       <header class="hero">
         <span class="badge">Seeking Full-Time Opportunities</span>
         <h1>Jeewon Kim</h1>
-        <p class="lead">CS @ Columbia (GPA 3.82 · May 2026). Full‑stack developer focused on <strong>AI systems</strong>, <strong>distributed apps</strong>, and <strong>social impact</strong> products. <br>Previously at Generous Health and TVCF, and founder of Tchelp.org.</p>
+        <p class="lead">CS @ Columbia (GPA 3.88 · May 2026). Full‑stack developer focused on <strong>AI systems</strong>, <strong>distributed apps</strong>, and <strong>social impact</strong> products. <br>Previously at Generous Health and TVCF, and founder of Tchelp.org.</p>
         <div class="actions">
           <a class="btn primary" href="mailto:jk4864@columbia.edu">Email Me</a>
           <a class="btn" href="https://github.com/gitgutgit" target="_blank" rel="noopener">GitHub</a>
@@ -46,6 +46,17 @@ <h3>Tchelp.org — Tech Support Platform</h3>
             </ul>
             <p><a href="http://tchelp.org/" target="_blank" rel="noopener">Visit site</a></p>
           </article>
+          <article class="card">
+            <h3>YOLO + PPO Game Agent (Vision → Policy)</h3>
+            <p class="meta">PyTorch · Ultralytics YOLO · Reinforcement Learning</p>
+            <ul class="list">
+              <li>Trained a vision-based agent: YOLO detections are encoded into a 26-D state and fed to a PPO policy.</li>
+              <li>Used behavioral cloning from a heuristic expert to bootstrap PPO and prevent degenerate “camping” behaviors.</li>
+              <li>Implemented a reproducible pipeline: <code>GameCore</code> (training) + <code>web_app</code> (Socket.IO demo).</li>
+            </ul>
+            <p><a href="https://github.com/gitgutgit/YOLO-You-Only-Live-Once" target="_blank" rel="noopener">Visit repo</a></p>
+          </article>
+
           <article class="card">
             <h3>Logical Benchmark — Research</h3>
             <p class="meta">LLM strategic reasoning on rule‑based games (Advisor: Prof. Tony Dear)</p>
@@ -54,6 +65,7 @@ <h3>Logical Benchmark — Research</h3>
               <li>Designed metrics to assess model decision‑making.</li>
             </ul>
           </article>
+
           <article class="card">
             <h3>AI‑Powered Reading Feed</h3>
             <p class="meta">GraphQL middleware + AWS EC2 backend</p>
@@ -118,7 +130,7 @@ <h2 class="section-title">At a Glance</h2>
             <h3>Education</h3>
             <p class="meta">Columbia University — B.S. in Computer Science</p>
             <ul class="list">
-              <li>GPA 3.82 · Expected May 2026</li>
+              <li>GPA 3.88 · Expected May 2026</li>
             </ul>
           </div>
           <div class="card">

styles.css

@@ -36,7 +36,20 @@
 
   section { margin-top: 32px; }
   .section-title { font-size: 20px; letter-spacing: .02em; margin: 0 0 12px; }
-  .cards { display: grid; grid-template-columns: 1fr; gap: 14px; }
+  .cards {
+    display: grid;
+    grid-template-columns: 1fr;
+    gap: 14px;
+    align-items: start; 
+  }
+  
+  @media (min-width: 760px) {
+    .cards { grid-template-columns: repeat(2, 1fr); }
+  }
+
+  @media (min-width: 1040px) {
+    .cards { grid-template-columns: repeat(2, 1fr); }
+  }
   @media (min-width: 760px) { .cards { grid-template-columns: repeat(2, 1fr); } }
   @media (min-width: 1040px) { .cards { grid-template-columns: repeat(3, 1fr); } }