https://blog.yushi91.com/blog/semantic-search/Recent content in Semantic-Search on Yushi's BlogHugoen-USCopyright © 2025, Yushi Cui.Wed, 15 Apr 2026 10:00:00 +1200https://blog.yushi91.com/blog/first-rag-solution-semantic-search/Wed, 15 Apr 2026 10:00:00 +1200https://blog.yushi91.com/blog/first-rag-solution-semantic-search/<p><img src="https://blog.yushi91.com/rag-solution.webp" alt="My First RAG Solution" loading="lazy"> </p> <h2 id="what-i-just-built">What I just built</h2> <p>I just finished my first RAG solution. RAG, as in Retrieval-Augmented Generation. I know the rabbit hole goes deep with this stuff, but getting the first version working? Way smoother than I expected. Some of the ideas behind it genuinely caught me off guard.</p> <h2 id="the-problem-with-keyword-search">The problem with keyword search</h2> <p>Regular search is keyword-based. You type &ldquo;ruby&rdquo; and it scans for the exact word &ldquo;ruby.&rdquo; If that string isn&rsquo;t in the document, you get nothing.</p>