http://blog.csdn.net/garfielder007/article/details/51480525 New (draft) survey paper: Labeled Faces in the Wild: A SurveyErik Learned-Miller, Gary Huang, Aruni RoyChowdhury, Haoxiang Li, Gang Hua The camera-ready has not yet been submitted. If you se…

手把手教你吧Python应用到实际开发 不再空谈悟法☝☝☝ 想用python做机器学习吗,是不是在为从哪开始挠头?这里我假定你是新手,这篇文章里咱们一起用Python完成第一个机器学习项目.我会手把手教你以下内容: 下载python,numpy,SciPy之类软件并安装,这些是python里机器学习方面最有用的软件包. 加载一个数据集,通过统计摘要(statistical summaries)和数据可视化来了解数据集的结构. 创建6个机器学习模型,选择这里边最好的,然后介绍通过何种方法来确定选出…

学习机器学习相关技术的最好方式就是先自己设计和完成一些小项目. Python 是一种非常流行和强大的解释性编程语言.不像 R 语言,Python 是个很完整的语言和平台,你既可以用来做研发,也可以用来开发产品体系. 而且,Python 还有很多模块和程序库供我们选择,从而针对一个任务能有很多个解决方案.怎么样,听起来还是很厉害的吧? 如果用 Python 执行机器学习,刚开始时最好方式就是先完成一个小项目,为什么这么说呢? 因为这会让你先懂得如何安装和启动 Python 解释器(这是最起码的要求…

Compare algorithms for heapq.smallest « Python recipes « ActiveState Code http://code.activestate.com/recipes/577573-compare-algorithms-for-heapqsmallest/…

锁(lock)的代价 锁是用来做并发最简单的方式,当然其代价也是最高的.内核态的锁的时候需要操作系统进行一次上下文切换,加锁.释放锁会导致比较多的上下文切换和调度延时,等待锁的线程会被挂起直至锁释放.在上下文切换的时候,cpu之前缓存的指令和数据都将失效,对性能有很大的损失.操作系统对多线程的锁进行判断就像两姐妹在为一个玩具在争吵,然后操作系统就是能决定他们谁能拿到玩具的父母,这是很慢的.用户态的锁虽然避免了这些问题,但是其实它们只是在没有真实的竞争时才有效. Java在JDK1.5之前都是靠s…

http://aggregate.org/MAGIC/ The Aggregate Magic Algorithms There are lots of people and places that create and collect algorithms of all types (here are a few WWW sites). Unfortunately, in building systems hardware and software, we in The Aggregate o…

About Cache Eviction Algorithms A cache eviction algorithm is a way of deciding which element to evict when the cache is full. In Ehcache , the memory store and the off-heap store might be limited in size. When these stores get full, elements are evi…

Feature selection is a process of extracting valuable features that have significant influence ondependent variable. This is still an active field of research and machine wandering. In this post I compare few feature selection algorithms: traditional…

https://www.topcoder.com/community/data-science/data-science-tutorials/maximum-flow-augmenting-path-algorithms-comparison/ 存档用... By  Zealint– TopCoder Member Discuss this article in the forums With this article, we’ll revisit the so-called “max-flow…

Automatic Parameter Tuning of Motion Planning Algorithms 运动规划算法的自动参数整定 Jos´e Cano, Yiming Yang, Bruno Bodin, Vijay Nagarajan, and Michael O’Boyle 张宁 Automatic Parameter Tuning of Motion Planning Algorithms https://pan.baidu.com/s/17rNCxNp3Lqbtqt-sO1x…