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<a class="article-title" href="/2018/08/17/最近纠结的事/">最近纠结的事</a>

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<h1 id="后台开发和算法工程师的比较"><a href="#后台开发和算法工程师的比较" class="headerlink" title="后台开发和算法工程师的比较"></a>后台开发和算法工程师的比较</h1><h2 id="1、未来问题的提法"><a href="#1、未来问题的提法" class="headerlink" title="1、未来问题的提法"></a>1、未来问题的提法</h2><p>就目前来看，互联网行业内部对于机器学习的消化已经趋于稳定，各类推荐系统，分类器的构建其实已经是一个相对成熟的业务了，然而CV和NLP两个方向，以及这些方向之下细分的业务可能还有很多有待探索的事情，当然，想要去探索，可能需要有较高的要求（顶会论文之类），未来的业务将很可能处处结合算法，而算法的使用门槛肯定会进一步降低，这将会带来，偏向商业的业务中必然带有算法，哪怕你是搞后台的，也会有这部分的任务。 </p>

<p>除了互联网行业内部以外，机器学习更广阔的前景在于机器学习+，这部分很可能需要更好的行业理解能力，而不是要求你把算法研究的多深入。 总之还是要能干活才行。</p>

<p>反观后台方面，现在架构本身已经是千锤百炼非常稳定的一个系统了，业务将仅限于如何提升效率，减少开支方面。以及大量的业务代码方面，将会变成基础设施。即不论你是什么样的业务，多么狂拽酷炫的算法，最终落地的时候，往往还是需要后台，或者其他软件工程师的支持的，这部分需要的员工人数应该是与算法岗不相上下，甚至远期看要更多，这就是最基础的岗位，也就是民工岗。</p>

<h2 id="2、后台开发岗分维度比较"><a href="#2、后台开发岗分维度比较" class="headerlink" title="2、后台开发岗分维度比较"></a>2、后台开发岗分维度比较</h2><ul>

<li>目前进度：有了java基础（但有部分内容有漏洞，需要填补），有了spring核心部分的基础（这部分学的到还不错，但是只是核心部分），数据库马上学完了，包括网络，操作系统，数据结构这些之前也都是学过的。</li>

<li>后续需学习内容：Spring剩余知识，java的漏洞补足，mybatis/hibernate之类的学习，TCP/IP协议的深入学习，hadoop/spark肯定至少要学一个，高并发相关，负载均衡相关，反向代理相关，RPC相关，日志分析相关，数据库的深入学习与优化相关，UNIX网络编程相关，可能还要学一点前端相关的内容，比方什么react之类的。</li>

<li>学习难度：东西确实很多，但是每一项确实难度都不是很大，只要踏踏实实学就够了。</li>

<li>工作内容：拿到问题，不用怎么分析，已经分析好了，直接下手去编写基础的，业务类代码，更多的就是CRUD，设计设计类和包的继承关系顶天了，搬砖感强烈，更多的挑战和快乐出现在技术本身上，比方如何高并发，如何高可用。写一两年业务代码之后，可能会关注一些更高的，更偏向深度技术的问题，例如高并发的解决，高可用什么的。</li>

<li>工作前景：要么一骑绝尘，在技术的路上不回头狂飙，做到架构师，要么干几年之后转向管理，这个转向又有两种转法，一种是项目经理，一种是产品经理。</li>

<li>工作积累：上面所说的学习的每一种技术，每一种框架，都是技术积累，工作之后在项目中，应该可以积累到：代码相关技巧（应用编程范式的东西），业务相关技术的积累（类似于在数梦这种公司干，可能就会积累到云计算相关的一些东西），以及工程积累，也就是工程中的无数细枝末节中积累的一些小tips，技术栈深度和广度的积累（什么都干过之后就可以凭借技术栈去当架构师了）</li>

<li>兴趣度：如果不写前端的话，兴趣其实还算可以，CRUD枯燥是枯燥，写完了各种调BUG也的确让人崩溃，但是总体还是可以，3星的兴趣吧。</li>

<li>总评：后台开发是属于要求大量广度与核心技能深度的岗位，现在已经有着比较成熟的招聘机制，公司要求什么，不要求什么一目了然，方便针对性准备，况且我们已经有了将近一年后台技术的学习和项目的积累。</li>

<h2 id="3、算法岗分维度比较"><a href="#3、算法岗分维度比较" class="headerlink" title="3、算法岗分维度比较"></a>3、算法岗分维度比较</h2><ul>

<li>目前进度：已经掌握的有，线性回归，对率回归，决策树，朴素贝叶斯，bp神经网络，以及K-means,PCA,SVD,协同过滤,及简单的SVM。 所谓已经掌握是指，稍加准备是可以完全手推的，但是对于后续更深刻的数学原理，很多还掌握的不足。框架方面，算是学到了tensorflow的基本用法，以及对于numpy,sklearn有个肤浅的了解。语言方面，python的基础也不牢固，需要这次回学校后，抽时间把一些内容补补课。</li>

<li>后续需学习内容：要补足的基础知识：矩阵分析，概率论和随机过程，更深入的数学基础，高斯混合模型，EM算法，线性分布，马尔科夫决策，强化学习。除基础知识以外，更重要的是要打比赛，要通过打比赛去了解自己，到底喜不喜欢干这份工作。这不比后台开发，好歹我是干了的，这个东西现在我还没干过。如果真的喜欢，真的决定坚持下去做，再去看深度学习。 我们现在所学的东西也并不算浪费，哪怕以后不做算法，这些内容也是其他岗位需要了解掌握的基础知识。</li>

<li>学习难度：要学的东西没有后台那么多，但是相应的，会比较难，而且光学了是没什么用的，必须要能应用下来，拿到成绩才行。</li>

<li>工作内容：类似于打比赛，拿到数据，分析问题，特种工程，建立模型，查找合适的算法，洗数据，应用算法，调参，等等。工作内容本身相对还是比较看重个人对问题的分析的，主观能动性会比较大，干起来会比后台好一点（当然，作为新人，刚进去不论是后台还是算法，必然都不可能把最具挑战也最有意思的东西分给你），更多的挑战是出现在：1.算法知识的广度深度，也就是遇到问题你要知道拿什么算法最合适，拿这个算法怎么做最合适。 2.特征工程和洗数据能力，也就是分析问题，建立模型的这种抽象思维能力。</li>

<li>工作积累：首先积累到的就是算法知识，可能会知道很多算法，以及他们的用途，这就好比你做后台，掌握了很多框架，中间件似的。其次是工程知识，未来像硕士做算法的工程师，一定会大量涉及工程能力，要落地（也就是有代码相关技巧）。再次是在所在行业的知识，特别是特定行业的特征工程知识以及数据挖掘，分析的知识。这些知识是对未来更大发展良好的铺垫（比方说做管理岗，CEO，对数据敏感肯定是更好的一件事）。此外就是一些小tips，例如同样是调参，我就是调的快，这种。</li>

<li>兴趣度：暂时没法给评价</li>

<li>总评：暂时没法给评价</li>

<h2 id="4、产品经理岗分维度比较"><a href="#4、产品经理岗分维度比较" class="headerlink" title="4、产品经理岗分维度比较"></a>4、产品经理岗分维度比较</h2><ul>

<li>目前进度：就有过一段水实习，其中一半是用研，一半是产品策划，策划的东西还是个残废</li>

<li>后续需学习内容：</li>

<li>学习难度：</li>

<li>工作内容：</li>

<li>工作积累：</li>

<li>兴趣度：</li>

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