<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[yuleicqut的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/yuleicqut</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; yuleicqut]]></copyright><item><title><![CDATA[llaMa模型的创新]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/145865429</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/145865429</guid><author>yuleicqut</author><pubDate>Tue, 25 Feb 2025 23:34:43 +0800</pubDate><description><![CDATA[LLaMa是基于transformer encoder的生成式模型。目前有：LLAMA, LLAMA2, LLAMA3 三个大的版本。]]></description><category></category></item><item><title><![CDATA[RMSNorm]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/145837799</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/145837799</guid><author>yuleicqut</author><pubDate>Tue, 25 Feb 2025 09:06:19 +0800</pubDate><description><![CDATA[RMS Layer Norm， 全称是Root Mean Square Layer Normalization。在 Transformer 的 Layer Normalization 结构中，作者认为 re-scaling 尺度变换，比re-centering 更加重要。假设输入数据的形状为。]]></description><category></category></item><item><title><![CDATA[Java 关键技术汇总-备忘录]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/132334653</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/132334653</guid><author>yuleicqut</author><pubDate>Thu, 17 Aug 2023 10:12:52 +0800</pubDate><description><![CDATA[java线程会缓存变量的值，可能导致缓存值和主内存的值不一致。Java内存模型规定了所有的变量都存储在主内存中，每条线程还有自己的工作内存，线程的工作内存中保存了该线程中是用到的变量的主内存副本拷贝，线程对变量的所有操作都必须在工作内存中进行，而不能直接读写主内存。除了可以保证数据的可见性之外，还有一个强大的功能，那就是他可以禁止指令重排优化等。volatile：保证可见性visibility   （并不能保证原子性）]]></description><category></category></item><item><title><![CDATA[单机安装spark]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/78635652</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/78635652</guid><author>yuleicqut</author><pubDate>Sun, 26 Nov 2017 09:38:48 +0800</pubDate><description><![CDATA[1. 下载 spark
解压：
mkdir /opt/spark
tar zxvf spark-2.2.0-bin-hadoop2.7.tgz
mv spark-2.2.0-bin-hadoop2.7 /opt/spark/


修改/etc/profile文件，在文件末尾添加:
export SPARK_HOME=/opt/spark/spark-2.2.0-bin-hadoop]]></description><category></category></item><item><title><![CDATA[正则表达式- 常用汇总]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/53562153</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/53562153</guid><author>yuleicqut</author><pubDate>Sat, 10 Dec 2016 23:23:03 +0800</pubDate><description><![CDATA[1. 参考：2. 常用：1）替换连续的空		//将字符串中连续的空格去掉
		String str = "Hello, world.   haha  !";


		System.out.println(str.replaceAll(" +", " "));
		System.out.println(str.replaceAll(" {2,}", " "));
		System.out.print]]></description><category></category></item><item><title><![CDATA[React环境搭建之一：sublime编辑器]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52971076</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52971076</guid><author>yuleicqut</author><pubDate>Sun, 30 Oct 2016 23:04:40 +0800</pubDate><description><![CDATA[1. 下载并安装sublime text3
https://www.sublimetext.com/3



2. 安装package control插件
这个插件用来安装其他插件的。
参考官网链接说明，进行安装：https://packagecontrol.io/installation


3. 用package controle: install package 安装：b]]></description><category></category></item><item><title><![CDATA[React环境搭建之二：node.js & npm安装]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52971477</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52971477</guid><author>yuleicqut</author><pubDate>Sun, 30 Oct 2016 12:19:27 +0800</pubDate><description><![CDATA[1. 官网下载并安装node.js
https://nodejs.org/en/

安装完成后，在命令窗口cmd中输入：
node -v  查看node的版本
npm -v 查看npm的版本


Node.js® is a JavaScript runtime built on Chrome's
 V8 JavaScript engine.

node.js中已经集成了npm]]></description><category></category></item><item><title><![CDATA[maven  Hello工程问题：No compiler is provided in this environment. Perhaps you are running on a JRE rath]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52772450</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52772450</guid><author>yuleicqut</author><pubDate>Mon, 10 Oct 2016 00:06:41 +0800</pubDate><description><![CDATA[穿件hello工程，出现以下错误：
 No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?



解决办法：
http://www.awolau.com/java/eclipse-maven-no-compiler-is-provided.html]]></description><category></category></item><item><title><![CDATA[Eclipse：maven安装与搭建]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52675479</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52675479</guid><author>yuleicqut</author><pubDate>Mon, 26 Sep 2016 23:01:43 +0800</pubDate><description><![CDATA[http://www.cnblogs.com/HD/p/4201847.html]]></description><category></category></item><item><title><![CDATA[JAVA多线程实现]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52578420</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52578420</guid><author>yuleicqut</author><pubDate>Sun, 18 Sep 2016 22:57:44 +0800</pubDate><description><![CDATA[来自：
http://blog.youkuaiyun.com/aboy123/article/details/38307539



JAVA多线程实现方式主要有三种：继承Thread类、实现Runnable接口、使用ExecutorService、Callable、Future实现有返回结果的多线程。其中前两种方式线程执行完后都没有返回值，只有最后一种是带返回值的。

1、继承Thread类实]]></description><category></category></item><item><title><![CDATA[Java容器集合类的区别用法]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52566410</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52566410</guid><author>yuleicqut</author><pubDate>Sat, 17 Sep 2016 22:41:12 +0800</pubDate><description><![CDATA[转载链接：http://www.cnblogs.com/sunliming/archive/2011/04/05/2005957.html

Set,List,Map,Vector,ArrayList的区别

JAVA的容器---List,Map,Set 
Collection 
├List 
│├LinkedList 
│├ArrayList 
│└Vector 
│　└St]]></description><category></category></item><item><title><![CDATA[VS2013 运行后闪退]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/52197480</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/52197480</guid><author>yuleicqut</author><pubDate>Sat, 13 Aug 2016 08:31:22 +0800</pubDate><description><![CDATA[按照以下设置即可：
Linker -> System -> SubSystem -> Console...
如截图：]]></description><category></category></item><item><title><![CDATA[SQL:　Java 连接 MySQL]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51683528</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51683528</guid><author>yuleicqut</author><pubDate>Thu, 16 Jun 2016 16:26:38 +0800</pubDate><description><![CDATA[1. 开发环境
- java: Eclipse
- MySQL 5.7
- MySQL Connect/J
具体的开发环境搭建就不在这里赘述。


 2. 
将Eclipse 项目中加入jar (connector J): 项目属性 -> Java Biuld Path -> add external JARs....]]></description><category></category></item><item><title><![CDATA[Java: 省略System.out]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51692659</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51692659</guid><author>yuleicqut</author><pubDate>Thu, 16 Jun 2016 16:18:24 +0800</pubDate><description><![CDATA[问题：
每次都需要输入 System.out.println() 很麻烦，有没有简化的办法呢？




解决办法：
添加：import static java.lang.System.out;
使用方法：
out.println("Hello, java");]]></description><category></category></item><item><title><![CDATA[Win7安装 boost库]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51682675</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51682675</guid><author>yuleicqut</author><pubDate>Wed, 15 Jun 2016 15:47:05 +0800</pubDate><description><![CDATA[我电脑配置：win7, 64位
1. 下载boost安装包
http://www.boost.org/

我下载了最新版本，boost_1_61_0
2. 解压，可能需要1分钟左右。
3. 双击运行bootstrap.bat文件，会在当前目录下生成bjam.exe
4. 运行 bjam.exe，会执行编译，可能需要一段时间，我的电脑用了大概10分钟。完成后，文件大小为1.54G。]]></description><category></category></item><item><title><![CDATA[Mysql: 基于MySQL API 接口，Viual Studio，访问 Mysql数据库]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51672246</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51672246</guid><author>yuleicqut</author><pubDate>Tue, 14 Jun 2016 16:25:44 +0800</pubDate><description><![CDATA[1. 用VS 访问Mysql数据库
OS: Windows 7, 64位
VS2008
Mysql 5.7




> 准备Mysql
CREATE DATABASE mydb;
SHOW DATABASES;
USE mydb;

CREATE TABLE test_tbl
(id serial,
name VARCHAR(20) NOT NULL);
SHOW TABLE]]></description><category></category></item><item><title><![CDATA[MySQL学习之：用户管理（添加用户，删除用户，添加权限，查看权限，密码等）]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51614506</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51614506</guid><author>yuleicqut</author><pubDate>Thu, 09 Jun 2016 17:37:10 +0800</pubDate><description><![CDATA[什么是规划？
数据库对象与数据库用户账户的相关联


1. 新建用于规划
CREATE SCHEMA [SCHEMA_NAME] [USER_ID]
[ ];
2. 删除规划
DROP SCHEMA SCHEMA_NAME {RESTRICT | CASCADE}




3. 调整用户
新建用户，例如：

CREATE USER 'test'@'%' IDENTI]]></description><category></category></item><item><title><![CDATA[MySQL 自学笔记之：数据库查询 DQL（Data Query Lanuage）汇总函数]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51613526</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51613526</guid><author>yuleicqut</author><pubDate>Wed, 08 Jun 2016 15:40:39 +0800</pubDate><description><![CDATA[> DQL (Data Query Lanuage)  汇总函数
COUNT
SUM
MAX
MIN
AVG
练习：
mysql> select *
    -> from em_tbl
    -> where salary is not null;
+----+--------+------+----------+
| id | name   | age  | salary]]></description><category></category></item><item><title><![CDATA[MySQL 自学笔记之：数据库查询 DQL（Data Query Lanuage）数据分类（where 子语句）]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51612735</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51612735</guid><author>yuleicqut</author><pubDate>Wed, 08 Jun 2016 15:31:17 +0800</pubDate><description><![CDATA[> DQL (Data Query Lanuage)  （使用操作符对）数据进行分类
操作符是一个保留字或者字符，主要用于 DQL 的where 子语句。
1. 比较操作符
equal: = 
not equal:　
less than: 
larger than: >
other: =


2. 逻辑操作符
IS NULL：用于和NULL比较
BETWEEN：用于寻找位于]]></description><category></category></item><item><title><![CDATA[MySQL 自学笔记之：数据库查询 DQL（Data Query Lanuage）基本查询]]></title><link>https://blog.youkuaiyun.com/yuleicqut/article/details/51603230</link><guid>https://blog.youkuaiyun.com/yuleicqut/article/details/51603230</guid><author>yuleicqut</author><pubDate>Tue, 07 Jun 2016 14:52:08 +0800</pubDate><description><![CDATA[> DQL (Data Query Lanuage)
基于查询语句，由select 语句及其子语句组成。
SELECT: 基本语句
FROM: 必备子语句
WHERE: 可选子语句
ORDER BY: 可选子语句
主要（典型）语法syntax:
SELECT [* | ALL | DISTINCT column1， colum2 ]
FROM TABLE1 [, TABLE2]]]></description><category></category></item></channel></rss>