https://www.chenk.top/en/tags/vector-search/Recent content in Vector Search on Chen Kai BlogHugoenWed, 06 May 2026 09:00:00 +0000https://www.chenk.top/en/aliyun-fullstack/09-opensearch/Wed, 06 May 2026 09:00:00 +0000https://www.chenk.top/en/aliyun-fullstack/09-opensearch/<p>I built my first search engine with Elasticsearch and a pile of synonyms. It took six months to get decent results. Every week, users complained about missing results, so I added more synonyms, broke something else, and added exception rules. The relevance tuning spreadsheet grew to 400 rows. I had custom analyzers for three languages, a boosting config that no one understood (including me), and a reindexing job that took four hours. Then I tried hybrid vector+keyword search on a side project and got better results on day one. Not marginally better — &ldquo;users stopped complaining&rdquo; better. That experience completely changed how I think about search, and it&rsquo;s the reason this article exists.</p>