大约有 1,340 项符合查询结果(耗时:0.0112秒) [XML]

https://www.tsingfun.com/it/bigdata_ai/634.html 

淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...用计算都是支持的。在现场计算方面,我们对Hbase进行了扩展,Prom要求每个节点返回的数据是已经经过“本地计算”的局部最优解,最终的全局最优解只是各个节点返回的局部最优解的一个简单汇总。很显然,这样的设计思路是...
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Seeding the random number generator in Javascript

... Antti Sykäri's algorithm is nice and short. I initially made a variation that replaced JavaScript's Math.random when you call Math.seed(s), but then Jason commented that returning the function would be better: Math.seed = function(s)...
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When is a language considered a scripting language? [closed]

... @Andrey: Chakra (IE9), TraceMonkey/JägerMonkey (Firefox), Nitro (Safari), Carakan (Opera) all compile JavaScript to bytecode and then some of the bytecode is interpreted and some compiled to native code. V8 (Chrome) skips bytecode and compiles JavaScript strai...
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C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区,为创新赋能!

...2012下编译你会得到一个警告:“arning C4200: 使用了非标准扩展 : 结构/联合中的零大小数组”。那么为什么gcc可以通过而连一个警告都没有?那是因为gcc 为了预先支持C99的这种玩法,所以,让“零长度数组”这种玩法合法了。关...
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Rolling median algorithm in C

...e internally entirely different: \describe{ \item{"Turlach"}{is the Härdle-Steiger algorithm (see Ref.) as implemented by Berwin Turlach. A tree algorithm is used, ensuring performance \eqn{O(n \log k)}{O(n * log(k))} where \code{n <- length(x)} which is asymptoti...
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多媒体组件 · App Inventor 2 中文网

...是空字符串,则应指定现有目录中文件的完整路径,包括扩展名如 .3gp 的文件名。 事件 录制完成时(录音文件路径) 表示新创建的录音已完成,录音文件路径提供录音文件的存储路径。 开始录制时() 表示录音机已启动...
https://www.tsingfun.com/it/tech/1257.html 

快速理解 高频对冲套利自动交易(程式化交易) - 更多技术 - 清泛网 - 专注...

...进入实盘实际交易阶段,目前效果良好,符合预期,逐步扩展应用。 呵呵,没办法,各家期货公司,都喜欢“高频”啊,我是首要目标是能够控制风险的稳定盈利,其次,顺便有点“高频”。 因人而兴、废,那是人治,不...
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AngularJS ui-router login authentication

... @PeterDraexDräxler I was mostly following the documentation. Did you notice any difference by using $stateChangeStart? – M.K. Safi Aug 8 '15 at 14:39 ...
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What is the best collation to use for MySQL with PHP? [closed]

I'm wondering if there is a "best" choice for collation in MySQL for a general website where you aren't 100% sure of what will be entered? I understand that all the encodings should be the same, such as MySQL, Apache, the HTML and anything inside PHP. ...
https://www.tsingfun.com/it/tech/743.html 

Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...一个学期内就能学完,而没有接纳全世界许多人对Minix 的扩展要求。因此这激发了Linus 编写Linux。Linus 正好抓住了这个好时机。      作为一个操作系统,MINIX 并不是优秀者,但它同时提供了用C 语言和汇编语言写的系统源...