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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
从源代码剖析Mahout推荐引擎前言Mahout框架中cf.taste包实现了推荐算法引擎，它提供了一套完整的推荐算法工具集，同时规范了数据结构，并标准化了程序开发过程。应用推...前言
Mahout框架中cf.taste包实现了推荐算法引擎，它提供...
Rolling median algorithm in C
...ing on releasing it under GPL. I would be interested in setting up a R and Python interfaces as well.
– AWB
Aug 21 '09 at 15:45
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
... Solr has many response writers other than xml, including JSON, PHP, Ruby, Python and a java binary format: lucene.apache.org/solr/api/org/apache/solr/request/…
– Mauricio Scheffer
Aug 16 '09 at 20:59
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How do I tell matplotlib that I am done with a plot?
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@JouniK.Seppänen Just to add to your comment, Python will by default warn you if you open many figures: "RuntimeWarning: More than 20 figures have been opened.".
– rph
Sep 14 '18 at 5:26
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C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++虚继承的概念C++中虚拟继承的概念为了解决从不同途径继承来的同名的数据成员在内存中有不同的拷贝造成数据不一致问题，将共同基类设置为虚基类。这时从...C++中虚拟继承的概念
为了解决从不同途径继承来的同名的数据...
Ruby off the rails
...es all the heavy pixel pushing for my photography processing. I was using Python+numpy but when doing artsy stuff, Ruby is just more fun. Also the relative lack of, or lesser maturity of, good image processing libraries makes me feel less like i'm reinventing wheels. I am clueless about Rails, ot...
Proper use of 'yield return'
... to use the yield keyword in C# by reading a presentation on generators in Python: David M. Beazley's http://www.dabeaz.com/generators/Generators.pdf. You don't need to know much Python to understand the presentation - I didn't. I found it very helpful in explaining not just how generators work b...
The Definitive C Book Guide and List
...the draft C11 standard.
The new C standard - an annotated reference (Free PDF) - Derek M. Jones (2009). The "new standard" referred to is the old C99 standard rather than C11.
Rationale for C99 Standard.
Beginner
C Programming: A Modern Approach (2nd Edition) - K. N. King (2008). A good book...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...中调用 boost::asio::io_service::run() 来确保回调是适用于并发编程的.
一个基于asio的程序最好是从单线程入手,但是单线程有如下的限制,这一点在服务器上尤其明显:
当回调耗时较长时,反应迟钝.
在多核的系统上无能为力
如果...
Calculate MD5 checksum for a file
I'm using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file is only containing images. I download the same PDF files everyday, and I want to see if the PDF has been modified. If the text and modification date cannot be obtained, is a ...