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https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...得这些年用着还不错的常规指南。 How large is your training set? 训练集有多大? If your training set is small, high bias/low variance classifiers (e.g., Naive Bayes) have an advantage over low bias/high variance classifiers (e.g., kNN), since the latter will overfi...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术

...得这些年用着还不错的常规指南。 How large is your training set? 训练集有多大? If your training set is small, high bias/low variance classifiers (e.g., Naive Bayes) have an advantage over low bias/high variance classifiers (e.g., kNN), since the latter will overfi...
https://www.tsingfun.com/ilife/tech/1096.html 

“90后”夫妻档:用创业圆梦让自己从“小草”成长为“大树” - 资讯 - 清泛...

...艰险也无法阻挡。”带着理想,李瀚等到了与他共成长的伴侣。 与现在的妻子、海归女孩安琪的相识是在一次创业培训活动中。一开始,两人只是互留了微信,李瀚帮安琪解决了几个技术问题。意外得知安琪在创业后,他也参...
https://bbs.tsingfun.com/thread-2229-1-1.html 

无法打包成apk - App应用开发 - 清泛IT社区,为创新赋能!

...写到大半的时候,可以顺利打包测试,现在使用手机上的伴侣,可以顺利测试和运行,就是无法打包 程序写道一半,大约300多k的时候可以顺利打包打包用的哪个平台?报错信息截图看一下App Inventor 2  发表于 2025-03-02 11:2...
https://bbs.tsingfun.com/thread-513-1-1.html 

JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区,...

...处理速度:package thread; import java.util.Vector; public class OneMain {        public static void main(String[] args) throws InterruptedException {             Vector list = new Vector(100);         &n...
https://stackoverflow.com/ques... 

What's the equivalent of use-commit-times for git?

... no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branches?".) The long answer was: I think you're much better off just using multiple repositories instead, if this is something common. Messing with timestamps is not going to work in gen...
https://ullisroboterseite.de/a... 

AI2 SideBar Extension

...d functions can be triggered by a button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all proper...
https://www.tsingfun.com/it/bigdata_ai/422.html 

MongoDB数据导出导入工具:mongoexport,mongoimport - 大数据 & AI - 清泛...

... line -k [ --slaveOk ] arg (=1) use secondaries for export if available, default true 参数说明: -h: 指明数据库宿主机的IP -u: 指明数据库的用户名 -p: 指明数据库的密码 -d: 指明数据库的名字 -c: 指明collection的名字 -f: 指明要导出那些...
https://www.tsingfun.com/it/bigdata_ai/2236.html 

从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...= 2; final static int RECOMMENDER_NUM = 3; public static void main(String[] args) throws IOException, TasteException { String file = "datafile/item.csv"; DataModel model = new FileDataModel(new File(file)); UserSimilarity user = new EuclideanDistanceSimilarity(...
https://bbs.tsingfun.com/thread-1872-1-1.html 

MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

... Labs的Kevin Ashton为了把宝洁的供应链上的RFID标签和互联网连接起来,在1999年第一个提出了IoT这个概念。发明人TCP协议的发明人是Vinton Cerf(下图左,曾在IBM工作过两年)和Robert Elliot Kahn(下图右)。 MQTT的发明人是IBM的Andy Stanf...