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机器学习 - 开发环境安装pycharm + pyspark + spark集成篇
AS WE ALL KNOW,学机器学习的一般都是从python+sklearn开始学,适用于数据量不大的场景(这里就别计较“不大”具体指标是啥了,哈哈) 数据量大了,就需要用到其他技术了,如:spark, tensorflow,当然也有其他技术,此处略过一坨字... 先来看看如何让这3个集成起来吧 ...
分类:其他好文   时间:2019-02-02 10:28:27    阅读次数:251
1058 A+B in Hogwarts (20 分)
If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver ...
分类:其他好文   时间:2019-01-26 21:35:56    阅读次数:163
Karen and Coffee CodeForces - 816B (差分数组+预处理前缀和)
To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the ...
分类:编程语言   时间:2019-01-26 13:17:30    阅读次数:166
~~~~练习~~~~问路程序
person=['B','C','D','E'] know=False def askway(address): #问路 if len(person)>0 and know is False: name=person.pop() def ask(): print('%s,你知道%s怎么走吗?'%(n... ...
分类:其他好文   时间:2019-01-15 14:30:34    阅读次数:134
RocketMQ源码分析之RocketMQ事务消息实现原理中篇----事务消息状态回查
上节已经梳理了RocketMQ发送事务消息的流程(基于二阶段提交),本节将继续深入学习事务状态消息回查,我们知道,第一次提交到消息服务器时消息的主题被替换为RMQ_SYS_TRANS_HALF_TOPIC,本地事务执行完后如果返回本地事务状态为UN_KNOW时,第二次提交到服务器时将不会做任何操作, ...
分类:其他好文   时间:2019-01-08 22:26:25    阅读次数:193
[Unit Testing] Mock a Node module's dependencies using Proxyquire
Sometimes when writing a unit test, you know that the module you're testing imports a module that you would like to observe, or at the very least mock ...
分类:其他好文   时间:2019-01-03 19:33:53    阅读次数:175
12 Best Live Chat Software for Small Business Compared (2019) 最佳的wordpress在线聊天工具推荐插件 来帮你和潜在客户互动
12 Best Live Chat Software for Small Business Compared (2019) Did you know that more than 67% of users on eCommerce websites abandon their shopping ca ...
分类:其他好文   时间:2018-12-31 23:11:38    阅读次数:280
细数Windows 的那些小技巧!
以下整理自知乎 Windows 有哪些你相见恨晚的技巧?和Quora(英文版) What are some secret tricks you should know about Windows? 等。。。以下测试和截图均来自win 10 pro 14393.447,如稍有不同,请自行更改。 0.找 ...
分类:Windows程序   时间:2018-12-31 13:50:09    阅读次数:263
如何看一个python的模块是否安装了
pip list pip freeze pip show <module_name> pip search <module_name> How to know if a python module is installed or not in the system: You can do a ver ...
分类:编程语言   时间:2018-12-30 02:44:37    阅读次数:305
HDU 1097 A hard puzzle(快速幂)
Problem Description lcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and b,how to know the a^b.everybody objects to this BT prob ...
分类:其他好文   时间:2018-12-29 23:20:03    阅读次数:153
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