<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[HolidayMorning的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/HolidayMorning</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; HolidayMorning]]></copyright><item><title><![CDATA[动态规划——learning now]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/120347959</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/120347959</guid><author>HolidayMorning</author><pubDate>Fri, 17 Sep 2021 21:18:28 +0800</pubDate><description><![CDATA[哪些题可以用动态规划来做？

计数

有多少种方式走到右下角
有多少种方法选出k个数使得和是Sum


求最大最小值

从左上角走到右下角路径的最大数字和
最长上升序列长度


求存在性

取石子游戏，先手是否必胜
能不能选出k个数使得和是Sum




DP算法
动态规划的意义就是通过采用递推（或者分而治之）的策略，
通过解决大问题的子问题从而解决整体的做法。
动态规划的核心思想是巧妙的将问题拆分成多个子问题，通过计算子问题而得到整体问题的解。
而子问题又可以拆分成更多的子问题，从而用类似递推迭代的方法解]]></description><category></category></item><item><title><![CDATA[leedcode刷题日志]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/119464856</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/119464856</guid><author>HolidayMorning</author><pubDate>Sat, 07 Aug 2021 00:49:11 +0800</pubDate><description><![CDATA[两数之和
复杂度
https://zhuanlan.zhihu.com/p/52896960
题
class Solution {
    public int[] twoSum(int[] nums, int target) {
    
}

输入：nums = [2,7,11,15], target = 9
输出：[0,1]
解释：因为 nums[0] + nums[1] == 9 ，返回 [0, 1] 。
class Solution {
    public int[] twoSum(int[] ]]></description><category></category></item><item><title><![CDATA[nlp学习日志]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/112057445</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/112057445</guid><author>HolidayMorning</author><pubDate>Fri, 01 Jan 2021 00:30:56 +0800</pubDate><description><![CDATA[nltk下载
nltk.org 官网
nltk_data
a
打开全局梯子再进行命令行输入：
python
&gt;&gt;&gt; import nltk
&gt;&gt;&gt; form nltk import *
&gt;&gt;&gt; nltk.download()

b
http://www.nltk.org/nltk_data/
c
https://pan.baidu.com/s/1oUsf-FgVAZnQAtZWRwiK4w 提取码：9sor
下载解压放到nltk.download()显示]]></description><category></category></item><item><title><![CDATA[raspberry + eap8266 学习笔记]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/111655534</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/111655534</guid><author>HolidayMorning</author><pubDate>Thu, 24 Dec 2020 20:49:14 +0800</pubDate><description><![CDATA[arduino下载：
https://www.arduino.cc/en/software
下载 linux 64bits  的 . .tar.xz文件
解压与安装
解压
cd 到下载的文件夹
unxz  **.tar.xz
ls **.tar.xz
**.tar.xz

安装
cd 到解压文件夹
命令行输入:
chmod +x install.sh

sudo ./install.sh
```




...]]></description><category></category></item><item><title><![CDATA[Rapsberry install mosquitto mqtt server(1)]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/109077665</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/109077665</guid><author>HolidayMorning</author><pubDate>Wed, 14 Oct 2020 16:53:25 +0800</pubDate><description><![CDATA[安装mosquitto mqtt 服务器
https://www.switchdoc.com/2018/02/tutorial-installing-and-testing-mosquitto-mqtt-on-raspberry-pi/
https://learn.adafruit.com/diy-esp8266-home-security-with-lua-and-mqtt/configuring-mqtt-on-the-raspberry-pi
https://blog.youkuaiyun.com/zintige]]></description><category></category></item><item><title><![CDATA[dlib 安装失败过来看！]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/106877270</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/106877270</guid><author>HolidayMorning</author><pubDate>Sat, 20 Jun 2020 20:29:55 +0800</pubDate><description><![CDATA[python3.7 试了各种方法
终极奥义！
下载对应3.7的whl
链接: https://pan.baidu.com/s/1e9FwiUpOQTb6UV44fHzdeg 提取码: qnbw
pip install …
successfully! 马惹法！

]]></description><category></category></item><item><title><![CDATA[数据可视化日记：使用pdfminder3k批量提取英文pdf文献内容_再使用wordcloud作词云]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/105330710</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/105330710</guid><author>HolidayMorning</author><pubDate>Mon, 06 Apr 2020 10:01:01 +0800</pubDate><description><![CDATA[应老师要求改论文 让加个高大上的图 word cloud 和co-occurrence map
词云库
pip3 install wordcloud
# mask = np.array(Image.open(path.join(d, "kk.png"))),
cloud_mask = np.array(Image.open('kkk.png'))
file = 'aa.txt'
txt = ope...]]></description><category></category></item><item><title><![CDATA[树莓派日记一：无显示屏使用树莓派]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/105239233</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/105239233</guid><author>HolidayMorning</author><pubDate>Wed, 01 Apr 2020 10:36:21 +0800</pubDate><description><![CDATA[工作环境及使用工具
step 1 烧录系统
硬件
tf卡—闪迪16G
tf卡读卡器
pc
软件
树莓派官方网站下载的系统文件：2020-02-13-raspbian-buster-full.img
DiskGenius.exe
Win32DiskImager.exe
工作
a
打开diskgenius，选择tf卡分区，删除分区，保存操作，新建分区，保存操作，会自动提醒格式化，确定，保存，退出（及其...]]></description><category></category></item><item><title><![CDATA[机器学习实战源码和数据集下载]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/104756754</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/104756754</guid><author>HolidayMorning</author><pubDate>Mon, 09 Mar 2020 17:21:18 +0800</pubDate><description><![CDATA[https://blog.youkuaiyun.com/sinat_29957455/article/details/79123394

]]></description><category></category></item><item><title><![CDATA[带线性回归最佳拟合线的散点图/抖动图/散点图]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103245164</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103245164</guid><author>HolidayMorning</author><pubDate>Mon, 25 Nov 2019 20:43:05 +0800</pubDate><description><![CDATA[1、import data
	df = pd.readcsv(r"D\mpg_ggplot2.csv")
	seclet_data =df.loc[df.cyl.isin([4,8]),:) 

2、Plot
sns.set_style("white")

gridobj = sns.implot( x="displ",y = "hwy",hue = "cyl",data=data_select,...]]></description><category></category></item><item><title><![CDATA[py数据分析学习日志_电信客户流失数据]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103089460</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103089460</guid><author>HolidayMorning</author><pubDate>Fri, 15 Nov 2019 17:55:46 +0800</pubDate><description><![CDATA[此文转载，原文https://learning.snssdk.com/feoffline/toutiao_wallet_bundles/toutiao_learning_wap/online/article.html?item_id=6738628737799045646&amp;app_name=news_article
注意：原文使用的pandas为0.17版本之前，在新版的pd一部分函数已...]]></description><category></category></item><item><title><![CDATA[大话数据结构学习笔记_(4)]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037493</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037493</guid><author>HolidayMorning</author><pubDate>Tue, 12 Nov 2019 20:04:17 +0800</pubDate><description><![CDATA[栈的引用/四则运算表达式求值


]]></description><category></category></item><item><title><![CDATA[大话数据结构学习笔记_(3)]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037120</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037120</guid><author>HolidayMorning</author><pubDate>Tue, 12 Nov 2019 19:42:47 +0800</pubDate><description><![CDATA[线性表/指针/链表


]]></description><category></category></item><item><title><![CDATA[大话数据结构学习笔记_(2)]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037074</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037074</guid><author>HolidayMorning</author><pubDate>Tue, 12 Nov 2019 19:40:59 +0800</pubDate><description><![CDATA[算法概述及度量方法/算法复杂度



]]></description><category></category></item><item><title><![CDATA[大话数据结构学习笔记_(1)]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037000</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103037000</guid><author>HolidayMorning</author><pubDate>Tue, 12 Nov 2019 19:35:08 +0800</pubDate><description><![CDATA[术语/抽象数据类型/


]]></description><category></category></item><item><title><![CDATA[Machine Learning_FatureScaling]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/103015097</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/103015097</guid><author>HolidayMorning</author><pubDate>Mon, 11 Nov 2019 18:38:47 +0800</pubDate><description><![CDATA[在梯度下降算法运用中，如果能保证不同特征的取值在相同或者相近的范围内，比如都处于0-1之间，那么梯度下降算法将会能很很快的收敛。
例如，一个含有两个特征的训练样本集，其中

X2=number of bedrooms(1-5)
此时，X1 是远远大于X2的，所以此时对应的轮廓图将很瘦很高，如下图所示：

这样造成的结果很可能就是，梯度在下降过程中走了很多的“弯路”，来回震荡，收敛速度很慢，解决办法...]]></description><category></category></item><item><title><![CDATA[智能商贸java代码实现——学习笔记day02]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/94839519</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/94839519</guid><author>HolidayMorning</author><pubDate>Tue, 09 Jul 2019 23:14:11 +0800</pubDate><description><![CDATA[结构图
自定义一个Repository,     它是JpaRepository的功能基础上继承增强
如自定义接口 BaseRepository 继承JpaRepository,增加自己想要的功能
然后在接口BaseRepository上加@NoRepositoryBean注解
SpringDataJpa就不会干扰自定义接口，使此接口有原本的功能；

...]]></description><category></category></item><item><title><![CDATA[java匿名对象理解]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/89678306</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/89678306</guid><author>HolidayMorning</author><pubDate>Mon, 29 Apr 2019 16:50:35 +0800</pubDate><description><![CDATA[匿名对象
1匿名对象：没有名字的实体，也就是该实体没有对应的变量名引用。
2匿名对象的用途
1，当对象对方法进行一次调用的时候，可以使用匿名对象对代码进行简化。
为什么只对方法，而不调用属性呢？因为匿名对象调用属性没意义。
如果对象要多成员进行多次调用，必须给对象起个名字。不能在使用匿名         对象。
2，匿名对象可以实际参数进行传递。
2：匿名对象的简单演示
    1：new Car...]]></description><category></category></item><item><title><![CDATA[java 常用类]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/89678243</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/89678243</guid><author>HolidayMorning</author><pubDate>Mon, 29 Apr 2019 16:48:35 +0800</pubDate><description><![CDATA[正则表达式
正则表达式描述了一种字符串匹配的模式，可以用来检查一个串是否含有某种子串、将匹配的子串做替换或者从某个串中取出符合某个条件的子串等。
1、快速入门
通过一个例子“只允许输入数字”，比较没有使用正则表达式和使用正则表达式的差异。
（1）只能输入数字
这里使用一个for循环和if判断结合起来，实现只允许输入数字的判断。
public void testNumber1() {
       ...]]></description><category></category></item><item><title><![CDATA[下载安装并配置JDK环境变量]]></title><link>https://blog.youkuaiyun.com/HolidayMorning/article/details/89676979</link><guid>https://blog.youkuaiyun.com/HolidayMorning/article/details/89676979</guid><author>HolidayMorning</author><pubDate>Mon, 29 Apr 2019 16:05:07 +0800</pubDate><description><![CDATA[一、JDK的下载安装
(1)下载JDK
首先第一步需要查看自己计算机的系统位数，在桌面右键计算机–&gt;属性就可以看到计算机的系统位数了。
登录oracle官网就可以页面中看到很多JDK的版本了，我选择的是JDK1.8版本的，点击下载。
(2)安装JDK
下载完成后双击下载好的.exe文件。选择安装目录我选择是的D盘。等java安装完后整个JDK的安装就此
结束，点击关闭即可。
(3)测试是否安...]]></description><category></category></item></channel></rss>