https://terms-en.ai-term-hub.com/zh/tags/vectors/Recent content in Vectors on 中文AI术语词典Hugozh-cnSat, 18 Jul 2026 11:44:44 +0000https://terms-en.ai-term-hub.com/zh/terms/embedding/Sat, 18 Jul 2026 07:44:46 +0000https://terms-en.ai-term-hub.com/zh/terms/embedding/<h2 id="definition">Definition</h2> <p>嵌入是数据的稠密向量表示，其中语义关系在几何空间中得以保留。通过将分类或高维输入转换为固定长度的向量，模型能够捕捉数据背后的深层含义。</p> <h3 id="summary">Summary</h3> <p>一种将单词或图像等离散对象映射到连续向量空间的技术。</p> <h2 id="key-concepts">Key Concepts</h2> <ul> <li>向量空间</li> <li>语义相似性</li> <li>降维</li> <li>连续表示</li> </ul> <h2 id="use-cases">Use Cases</h2> <ul> <li>情感分析等自然语言处理任务</li> <li>用于用户-物品匹配推荐系统</li> <li>基于视觉相似性的图像检索</li> </ul> <h2 id="code-example">Code Example</h2> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-python" data-lang="python"><span style="display:flex;"><span><span style="color:#f92672">import</span> numpy <span style="color:#66d9ef">as</span> np </span></span><span style="display:flex;"><span><span style="color:#75715e"># Simulating a simple embedding lookup</span> </span></span><span style="display:flex;"><span>embeddings <span style="color:#f92672">=</span> np<span style="color:#f92672">.</span>random<span style="color:#f92672">.</span>rand(<span style="color:#ae81ff">100</span>, <span style="color:#ae81ff">128</span>) </span></span><span style="display:flex;"><span>word_index <span style="color:#f92672">=</span> <span style="color:#ae81ff">5</span> </span></span><span style="display:flex;"><span>vector <span style="color:#f92672">=</span> embeddings[word_index] </span></span></code></pre></div><h2 id="related-terms">Related Terms</h2> <ul> <li><a href="https://terms-en.ai-term-hub.com/en/terms/word2vec-%E8%AF%8D%E5%90%91%E9%87%8F%E6%A8%A1%E5%9E%8B/">Word2Vec (词向量模型)</a></li> <li><a href="https://terms-en.ai-term-hub.com/en/terms/transformer-%E5%8F%98%E6%8D%A2%E5%99%A8%E6%9E%B6%E6%9E%84/">Transformer (变换器架构)</a></li> <li><a href="https://terms-en.ai-term-hub.com/en/terms/%E6%BD%9C%E5%9C%A8%E7%A9%BA%E9%97%B4-latent-space/">潜在空间 (Latent Space)</a></li> <li><a href="https://terms-en.ai-term-hub.com/en/terms/%E5%90%91%E9%87%8F%E6%95%B0%E6%8D%AE%E5%BA%93/">向量数据库</a></li> </ul>