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<h1 id="业务案例"><a href="#业务案例" class="headerlink" title="业务案例"></a>业务案例</h1><p> 互联网企业A 为了提高用户对金融产品“小小贷”购买的转化率，想和金融企业B达成合作。互联网企业A有用户上网行为特征X1、X2、X3，金融企业B有用户的信用特征X4、X5和标签Y，这样就可以把两边的特征结合起来，并通过机器学习来提高“小小贷”购买的转化率。但是在合作的过程发现一个问题，那就是<strong>企业之间无法进行互通数据</strong> ！！！</p>
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<h1 id="DeepFM简介"><a href="#DeepFM简介" class="headerlink" title="DeepFM简介"></a>DeepFM简介</h1><p>在推荐系统中CTR预估是至关重要的，CTR预估主要目的是估计用户点击推荐商品的概率。但目前提出的CTR预估模型都有不足之处，而本文提出的DeepFM模型相比于之前的模型有以下明显的优势</p>
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<p>Shell是指一种应用程序，这个应用程序提供了一个界面，用户通过这个界面访问操作系统内核的服务。Shell脚本是一种为Shell编写的脚本程序，一般听到的<strong>shell</strong>通常指<strong>shell脚本</strong>，但是我们要清楚<strong>shell</strong>和<strong>shell脚本</strong>是两个不同的概念，因此为了简洁起见本文出现的<strong>shell编程都是指shell脚本编程</strong>，而不是指开发shell自身</p>
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<h1 id="ESMM简介"><a href="#ESMM简介" class="headerlink" title="ESMM简介"></a>ESMM简介</h1><p>阿里妈妈团队在2018年的SIGIR上发表论文《<a href="https://arxiv.org/abs/1804.07931" target="_blank" rel="noopener">Entire Space Multi-Task Model: An Effective Approach for Estimating Post-Click Conversion Rate</a>》，这篇文章是基于多任务学习的思路提出了新的CVR预估模型ESMM，解决了现实生活中CVR预估面临的样本数据稀疏以及样本选择偏差的问题</p>
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<h1 id="Gremlin简介"><a href="#Gremlin简介" class="headerlink" title="Gremlin简介"></a>Gremlin简介</h1><p>Gremlin 是 Apache TinkerPop 框架下的<strong>图遍历语言</strong>，是目前图数据库领域主流的查询语言，Gremlin支持实时性高的OLTP以及多方面观察信息的OLAP。对于图数据库的Gremlin类似于针对关系型数据库的SQL</p>
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<h1 id="说在前面的话"><a href="#说在前面的话" class="headerlink" title="说在前面的话"></a>说在前面的话</h1><p><a href="https://theme-next.js.org/" target="_blank" rel="noopener">NexT</a>是Hexo上最有名的主题之一，大量的文字留白、简洁的配置项以及清爽的布局使得它的文字阅读体验非常好，接下来小编会向大家介绍Next主题常用的配置方法</p>
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<h1 id="说在前面的话"><a href="#说在前面的话" class="headerlink" title="说在前面的话"></a>说在前面的话</h1><p>Docker 运行在 CentOS 7 上，要求系统为64位、系统内核版本为 3.10 以上</p>
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