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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
...是等间距的数据。Mahout中，为皮尔森相关计算提供了一个扩展，通过增加一个枚举类型 （Weighting）的参数来使得重叠数也成为计算相似度的影响因子。
UncenteredCosineSimilarity: 余弦相似度
原理：多维空间两点与所设定的点形...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
...内存模型和原子操作、基于锁和无锁数据结构的构建，再扩展到并行算法、线程管理，最后还介绍了多线程代码的测试工作。
本书的附录部分还对C++11新语言特性中与多线程相关的项目进行了简要的介绍，并提供了C++11线程库的...
Visual Studio popup: “the operation could not be completed”
...o output window == restart VS to fix).
– Thomas Andreè Wang
Jan 22 '16 at 13:45
I still prefer vs 2013 for some thing...
Comparison of Lucene Analyzers
...hing like ["i", "be", "veri", "happi"] produced, and for French "Je suis très heureux" some kind of French analyzer (like SnowballAnalyzer, initialized with "French") will produce ["je", "être", "tre", "heur"]. Of course, if you will use analyzer of one language to stem text in another, rules from...
How can I find out if I have Xcode commandline tools installed?
...since /usr/bin is usually in your PATH.
– Samuel Lelièvre
Jul 25 at 19:18
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What is scope/named_scope in rails?
...ed Feb 2 '11 at 2:17
Michael SchäfermeyerMichael Schäfermeyer
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C++11 std::threads vs posix threads
...hat can be avoided for most applications.
– Erik Alapää
Aug 24 '16 at 8:00
Also, std::thread brings type safety that...
How does the ARM architecture differ from x86? [closed]
...t there was no “as well”, you had to store everything in memory; about ½ of instructions in a program where just to move things about. Whereas in ARM very few instructions are needed to move data about.
– ctrl-alt-delor
Feb 17 '16 at 9:48
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What are the differences between Deferred, Promise and Future in JavaScript?
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@MartinKällman You're right! I hadn't revisited this in a while and have learned a bit. I'll post a separate answer below, but leave this since people seem to have benefited from the usage example.
– fncomp
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How to enable C++11/C++0x support in Eclipse CDT?
...ke the accepted answer more complete.
– Inusable Lumière
Nov 27 '13 at 15:45
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