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Nearest neighbors in high-dimensional data?
...for a polar coordinate system is a good idea (e.g., London to Vienna is is 2.5 hours, Vienna to St. Petersburg is another 3 hrs, more or less in the same direction, yet London to St. Petersburg isn't 5.5 hours, instead, is a little over 3 hrs.)
But apart from those cases in which your data belongs ...
How to enable local network users to access my WAMP sites?
...See the end of this post for how to do this in WAMPServer 3
For WampServer 2.5 and previous versions
WAMPServer is designed to be a single seat developers tool. Apache is therefore configure by default to only allow access from the PC running the server i.e. localhost or 127.0.0.1 or ::1
But as it i...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
... were more or less expecting this.
Then, I let x be constant (I set it to 2.5), and I looped n from 0 to 19 a hundred million times. This time, quite unexpectedly, glibc pow won, and by a landslide! It took only 2.0 user seconds. My pown took 9.6 seconds, and pown_l took 12.2 seconds. What happened...
How to calculate moving average using NumPy?
...5., 16., 17., 18.])
>>> moving_average(a, n=4)
array([ 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5,
10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5])
So I guess the answer is: it is really easy to implement, and maybe numpy is already a little bloated wit...
Why are C# 3.0 object initializer constructor parentheses optional?
...new[] { 1, 10, 100, 1000 }; // int[]
var b = new[] { 1, 1.5, 2, 2.5 }; // double[]
var c = new[] { "hello", null, "world" }; // string[]
var d = new[] { 1, "one", 2, "two" }; // Error
Reference: http://msdn.microsoft.com/en-us/library/ms364047%28VS.80%29.aspx
...
Why is the order in dictionaries and sets arbitrary?
...anted an ordered set, you can install the oset package; it works on Python 2.5 and up.
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Peak signal detection in realtime timeseries data
...,1.2,1,1.5,1,3,2,5,3,2,1,1,1,0.9,1,1,3,
2.6,4,3,3.2,2,1,1,0.8,4,4,2,2.5,1,1,1])
# Settings: lag = 30, threshold = 5, influence = 0
lag = 30
threshold = 5
influence = 0
# Run algo with settings from above
result = thresholding_algo(y, lag=lag, threshold=threshold, influence=influence)
# Plo...
深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...se 到 IDTR.base + IDTR.limit（含）之外，将会产生 #GP 异常。
2.5 请求访问 interrupt handler 时的权限检查
访问权限的检查是 x86/x64 体系中保护措施中非常重要的一环，它控制着访问者是否有权限进行访问，在访问 interrupt handler 过程权...
Should I use px or rem value units in my CSS? [closed]
... <div> - 10px
<div> - 5px
<div> - 2.5px
<div> - 1.25px
The CSS3 rem, which is always relative only to the root html element, is now supported on 96% of all browsers in use.
The Opinion
I think everyone agrees that it's good to design...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...步”。
以广州为例。广州出租车起步价10元，起价里程2.5公里，续租价每公里2.6元。同样的里程，使用人民优步比出租车便宜两成左右。
与专车竞争对手相比，Uber也有其优势。一位不愿透露姓名的专车司机向《中国新闻周刊...