http://hzjavaeyer.group.iteye.com/group/wiki?category_id=283 上面这个url非常适合javascript初学者阅读,感谢原作者的分享 什么是script? A script is a series of instructions that a computer can follow to achieve a goal. A browser may use different parts of the script depending o…

非常好的文章: http://javascriptissexy.com/javascript-prototype-in-plain-detailed-language/ jan. 25 2013 147 Prototype is a fundamental concept that every JavaScript developer must understand, and this article aims to explain JavaScript’s prototype in plain…

Generics The term "generic" means "pertaining or appropriate to large groups of classes." While using someone else's generic type is fairly easy, when creating your own you will encounter a number of surprises. Comparison with C++ Unde…

After working with DCC software for so many years, I saw the realtime solution went forward so much, also more and more low-level. As the game engine, 10 hears ago the game engine was such a challenge that now everything become so cheap, everybody co…

@interface MyClass : NSObject { NSString *name; NSArray *items; Something *something; IBOutlet NSTextField *myTextField; } @property (nonatomic, retain) NSString *name; @property (nonatomic, retain) NSArray *items; in the iPhone world, there's no gar…

这些小技巧之所以特别,是因为这些信息通常吧不能在C++书籍或者网站上找到.比如说,成员指针,即使对于高级程序员也是比较棘手,和易于产生bugs的,是应该尽量避免的问题之一. <翻 by凌云健笔> What makes these tips special is that the information they provide usually cannot be found in C++ books or Web sites. For example, pointers to members…

一.Training of a Single-Layer Neural Network 1 Delta Rule Consider a single-layer neural network, as shown in Figure 2-11. In the figure, d i is the correct output of the output node i. Long story short, the delta rule adjusts the weight as the follow…

原文地址:http://blogs.msdn.com/b/wenlong/archive/2006/11/22/virtual-application-vs-virtual-directory.aspx. People are always confused by these two IIS concepts, especially for the new IIS7/WAS. These are not new concepts. They are available since IIS6 on…

https://www.quora.com/How-do-I-learn-mathematics-for-machine-learning   How do I learn mathematics for machine learning? Promoted by Time Doctor Software for productivity tracking. Time tracking and productivity improvement software with screenshots…

近期做了一个简单的demo需求,搭建一个http server,支持简单的qa查询.库中有10000个qa对,需要支持每秒10000次以上的查询请求. 需求比较简单,主要难点就是10000+的RPS.首先使用python + uwsgi写了个简单的demo,压测后发现,RPS只有几千,达不到性能要求.后来部署了多个服务,使用nginx做负载均衡才勉强达到需求. Japronto 后来经过google 搜索,发现了Japronto,github地址https://github.com/squeak…