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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
...们将基于单机内存算法，研究Mahout的推荐引擎的结构。
2. 标准化的程序开发过程
以UserCF的推荐算法为例，官方建议我们的开发过程：
图片摘自Mahout in Action
从上图中我们可以看到，算法是被模块化的，通过1,2,3,4的过程进行...
Is there a way to recover from an accidental “svn revert”?
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edited Jul 7 '15 at 12:51
answered Oct 5 '09 at 17:36
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How do I add a delay in a JavaScript loop?
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edited Apr 22 at 17:33
double-beep
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Concept of void pointer in C programming
...ype must be aligned at boundary of the size of data type (e.g. pointer to 32-bit integer must be aligned at 4-byte boundary to be dereferenced).
For example, reading uint16_t from void*:
/* may receive wrong value if ptr is not 2-byte aligned */
uint16_t value = *(uint16_t*)ptr;
/* portable way of...
What's the difference between Task.Start/Wait and Async/Await?
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answered Mar 1 '12 at 16:04
Eric LippertEric Lippert
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Java Regex Capturing Groups
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The issue you're having is with the type of quantifier. You're using a greedy quantifier in yo...
How can I open Java .class files in a human-readable way?
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jd-gui is the best decompiler at the moment. it can handle newer features in Java, as compared...
Eclipse/Java code completion not working
I've downloaded, unzipped and setup Eclipse 3.4.2 with some plugins (noteable, EPIC, Clearcase, QuantumDB, MisterQ).
23 An...
Hour from DateTime? in 24 hours format
... this DateTime? and what i want to do is to obtain the hour but show it in 24 hours format.
For example:
If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it.
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Check if a file exists with wildcard in shell script [duplicate]
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21 Answers
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