https://www.xin800.com/tags/%E4%BD%99%E5%BC%A6%E7%9B%B8%E4%BC%BC%E5%BA%A6/Recent content in 余弦相似度 on 标准答案Hugozh-CNFri, 31 Jul 2026 00:00:00 +0000https://www.xin800.com/post/what-is-cosine-similarity/Fri, 31 Jul 2026 00:00:00 +0000https://www.xin800.com/post/what-is-cosine-similarity/余弦相似度是衡量两段文本语义相似程度的打分方法，只对比方向不看长短，是文本语义匹配的首选方案。https://www.xin800.com/post/how-to-judge-vector-proximity/Fri, 31 Jul 2026 00:00:00 +0000https://www.xin800.com/post/how-to-judge-vector-proximity/详解向量相似度判断的底层逻辑：向量不是逐字编码，而是整体语义的打包。通过余弦相似度衡量方向重合度。https://www.xin800.com/post/dot-product-vs-cosine/Fri, 31 Jul 2026 00:00:00 +0000https://www.xin800.com/post/dot-product-vs-cosine/通过Q-K点积自动算出任意两条业务信息之间关联程度，详解Thing、query-vector、key-vec等概念，区分点积与余弦相似度的本质差异。