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<a href="/2024/12/18/%E5%A6%82%E4%BD%95%E6%89%A9%E6%95%A3/" class="post-title-link" itemprop="url">如何扩散？</a>
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<span class="post-meta-item-text">发表于</span>
<time title="创建时间：2024-12-18 13:00:28 / 修改时间：13:36:50" itemprop="dateCreated datePublished" datetime="2024-12-18T13:00:28+08:00">2024-12-18</time>
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<a href="/categories/%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0/" itemprop="url" rel="index"><span itemprop="name">学习笔记</span></a>
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<span id="/2024/12/18/%E5%A6%82%E4%BD%95%E6%89%A9%E6%95%A3/" class="post-meta-item leancloud_visitors" data-flag-title="如何扩散？" title="阅读次数">
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<span class="post-meta-item-text">Valine：</span>
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<p>本栏用于收集作者在学习扩散模型过程中接触到的优质学习资源，包括视频、论文、网站等，争取从基础到进阶全覆盖。</p>
<ol>
<li>B站视频：<a target="_blank" rel="noopener" href="https://www.bilibili.com/video/BV1sRHwe8ERa?t=1.7">概率背后的关键方程</a><ol>
<li>YouTube 原视频: <a target="_blank" rel="noopener" href="https://www.youtube.com/watch?v=KHVR587oW8I">The Key Equation Beyond Probability</a></li>
<li>介绍了建模概率分布来采样生成数据的动机</li>
<li>介绍了交叉熵、KL 散度的概念，以及为什么机器学习算法选择两者作为优化目标</li>
</ol>
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<a href="/2024/11/01/thoughts/" class="post-title-link" itemprop="url">thoughts</a>
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<time title="创建时间：2024-11-01 14:07:24" itemprop="dateCreated datePublished" datetime="2024-11-01T14:07:24+08:00">2024-11-01</time>
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<time title="修改时间：2024-12-18 13:35:02" itemprop="dateModified" datetime="2024-12-18T13:35:02+08:00">2024-12-18</time>
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<a href="/categories/%E9%9A%8F%E6%83%B3/" itemprop="url" rel="index"><span itemprop="name">随想</span></a>
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<h2 id="2024-11-01"><a href="#2024-11-01" class="headerlink" title="2024-11-01"></a>2024-11-01</h2><p>忘了什么时候开始隐隐觉得，真正赚钱的生意是卖情绪，而情绪的根本是认同；卖情绪的高级版本是卖体验、卖价值。</p>
<p>今天听到<a target="_blank" rel="noopener" href="https://www.xiaoyuzhoufm.com/episode/668cce0eae8e21859a8b921c">一期播客节目</a>《中国好生意》，主持人说：梁宁说过，情绪才是流量。不太清楚这个人，貌似是个比较厉害的产品经理。看来我也有点产品经理的思维了。</p>
<h2 id="2024-12-18"><a href="#2024-12-18" class="headerlink" title="2024-12-18"></a>2024-12-18</h2><p>世界真是一个 <a target="_blank" rel="noopener" href="https://www.youtube.com/watch?v=Uot4Ul5-p-g">Perfect Circle</a>。前几天刚接触到能解释高中时期对反证法的不信任的理论——构造主义数学，现在尝试做的线上兼职要求使用的 LEAN 4 编程语言就是依赖于构造主义数学中的 Dependent Type Theory 形成的。难道说 Type Thoery 的创建就是为了让计算机更好地理解数学？</p>
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<p>B站视频地址：<a target="_blank" rel="noopener" href="https://www.bilibili.com/video/BV1oz1eYVECp/?spm_id_from=333.337.search-card.all.click&vd_source=eae193446d18b44e3dd89f9d03f37981">【喵星考拉】傅里叶变换究极入门课程_哔哩哔哩_bilibili</a></p>
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<h2 id="复数及其表示"><a href="#复数及其表示" class="headerlink" title="复数及其表示"></a>复数及其表示</h2><h3 id="复数的概念及代数运算"><a href="#复数的概念及代数运算" class="headerlink" title="复数的概念及代数运算"></a>复数的概念及代数运算</h3><p>$z=x+iy$<br>和、差、积、商</p>
<h3 id="复数的几何表示"><a href="#复数的几何表示" class="headerlink" title="复数的几何表示"></a>复数的几何表示</h3><p>复平面、模<br>用平行四边形法则求复数的和差<br>三角不等式<br>幅角、幅角主值<br>三角表示：$z=r(\cos\theta+i\sin\theta)$<br>指数表示：$z=re^{i\theta}$<br>乘积：模相乘、幅角相加</p>
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<h2 id="关于播客"><a href="#关于播客" class="headerlink" title="关于播客"></a>关于播客</h2><p>愈发觉得，播客会是很有发展潜力的一个平台/媒介。视频平台目前似乎已经瓶颈，而其对策却是进一步强化视觉刺激、呈现视觉奇观（创新的，或烂俗的），内容上越来越没有营养。也许未来随着更高超的技术的到来会暂时缓解这一瓶颈，但这不过是提高了兴奋阈值，其发展方向仍是错误的。</p>