6月底final,还有很多课内的知识没总结，总之，加快脚步复习总结吧。

开始机器学习的学习啦！

5.1 The hiring problem

昨天在知乎上看到一个问题，“你为什么讨厌鸣人？”

当fitness landscape不再是单峰的，而是“四峰”的，结果又会如何呢？ f(x)=50-x1^2-x2^2。 书上给出了4种方案猜想：

1. EV will converge to a homogeneous fixed point as before. However, there are now four peaks of attraction. Which one it converges near will depend on the randomly generated initial conditions.
2. EV will converge to a stable fixed point in which the population is made up of subpopulations (species), each clustered around one of the peaks.
3. EV will not converge as before, but will oscillate indefinitely among the peaks.
4. The symmetry of the fitness landscape induces equal but opposing pressures to increment and decrement both feature values. This results in a dynamic equilibrium in which the average fitness of the population changes very little from its initial value.

从最简单的进化系统开始研究：EV。

本周星期三去参加了一场论文分享会，论文是遗传算法相关的，因为之前对这个领域只是一知半解，所以很多内容听的不是很懂，不如在每次分享会之前先把要研讨的论文看一遍，相信会受益更多。

之前写过一篇博文，利用github pages五分钟建好个人网站+个人博客 ，在这篇 博文里，做了一件什么事呢？

1. 利用github pages和Jekyll创建了个人网站，这个个人网站的原始域名是: logos23333.github.io
2. 在aliyun购买了logos23333.top域名
3. 将logos23333.top与logos23333.github.io绑定，当用户在浏览器键入logos23333.top时，自动解析到logos23333.github.io

Chapter 1了解一些基本概念即可。