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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
...就清楚地知道了Mahout推荐引擎的原理和使用，我们就可以写一个自己的构造器，通过“策略模式”实现，算法的组合。
新建文件：org.conan.mymahout.recommendation.job.RecommendFactory.java
public final class RecommendFactory {
...
}
1). 构造数据...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
... 137
6.3 设计更为复杂的基于锁的数据结构… 148
6.3.1 编写一个使用锁的线程安全查找表… 148
6.3.2 编写一个使用锁的线程安全链表… 153
6.4 小结… 157
第7章 设计无锁的并发数据结构… 159
7.1 定义和结果… 159
7.1.1 无阻塞数据...
Generate random numbers uniformly over an entire range
...values tend to correlate, and the sequence is deterministic). Knuth has an excellent (if hard-to-read) treatise on random number generators, and I recently found LFSR to be excellent and darn simple to implement, given its properties are OK for you.
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The Use of Multiple JFrames: Good or Bad Practice? [closed]
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@ryvantage "Should (Excel) be MDI?" Good question. I feel it should be offered to the user both ways (certainly not only in MDI form). For example: 1) I currently use TextPad, and by configuration at my choice, it opens separate instances, t...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
.../ 可拓展 / 阻塞场景可用
性能依赖 TLS
性能敏感 / 读多写少
C++ 标准库中提供了锁和引用计数方案。锁的缺点很明显，无论是哪种锁，在读的时候都会产生较大的开销。引用计数则相对好一些，但每次读取都需要修改引...
Creating dataframe from a dictionary where entries have different lengths
...ile this does not directly answer the OP's question. I found this to be an excellent solution for my case when I had unequal arrays and I'd like to share:
from pandas documentation
In [31]: d = {'one' : Series([1., 2., 3.], index=['a', 'b', 'c']),
....: 'two' : Series([1., 2., 3., 4.], ind...
Unit testing for C++ code - Tools and methodology [closed]
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Check out an excellent comparison between several available suites. The author of that article later developed UnitTest++.
What I particularly like about it (apart from the fact that it handles exceptions etc. well) is that there is a ve...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...需要对OAuth概念有一定的了解，如不清楚可以参考我以前写的文章：OAuth那些事儿，其次需要注册成为各个微博平台（新浪，腾讯，搜狐，网易）的开发者，拿到属于你自己的CONSUMER_KEY和CONSUMER_SECRET（有时也被称作APP_*）。
下面...
Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
...ver. It works both in 32 bit as well as 64 bit servers. I have used it for Excel file manipulation and it worked fine for me in both the environments. But this driver is in BETA.
You can download this driver from Microsoft Access Database Engine 2010 Redistributable
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Why am I getting 'Assembly '*.dll' must be strong signed in order to be marked as a prerequisite.'?
I'm trying to compile my excel addin using C# 4.0, and started to get this problem when building my project in Visual Studio. It's important to tell you that I haven't had this problem before. What could cause this to happen?
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