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What is the difference between bottom-up and top-down?
...97 linked a dynamic programming example of finding the maximum independent set in a tree, which corresponds to filling in the blanks in a tree.
(At it's most general, in a "dynamic programming" paradigm, I would say the programmer considers the whole tree, then writes an algorithm that implements...
常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...gout,shutdown,reboot,useradd,passwd,ls,ll,cd,mkdir,vi,cp,rm,mv,chmod,chown,find,grep,tail,tar,gzip,fdisk,kill,netstat等。一、注销，关机，重启，新建用户、删除用户
1. 注销系统的命令
logout 、exit
这两个命令都可以用来退出当前所登录的服务器，若想...
How to find patterns across multiple lines using grep?
...P Use perl compatible regular expressions (PCRE).
-z Treat the input as a set of lines, each terminated by a zero byte instead of a newline. i.e. grep treats the input as a one big line.
-l list matching filenames only.
(?s) activate PCRE_DOTALL, which means that '.' finds any character or newlin...
Find all files with a filename beginning with a specified string?
... editor after snippets, if snippets enabled
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Impossible to make a cached thread pool with a size limit?
...
This does work, Matt. You set the core size to 0, that's why you only had 1 thread. The trick here is to set the core size to the max size.
– T-Gergely
Apr 19 '16 at 12:18
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python plot normal distribution
...
I believe that is important to set the height, so created this function:
def my_gauss(x, sigma=1, h=1, mid=0):
from math import exp, pow
variance = pow(sdev, 2)
return h * exp(-pow(x-mid, 2)/(2*variance))
Where sigma is the standard deviatio...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
...ing some things on neural networks and I understand the general principle of a single layer neural network. I understand the need for aditional layers, but why are nonlinear activation functions used?
...
Can I multiply strings in Java to repeat sequences? [duplicate]
...ems. In this case, I'm using maven on my current project. I have a pom.xml set up with the commons-lang dependency. It made it easier for me to answer his question, in short. And I'm not exactly sure what I'd do if I wasn't using maven - I guess I'd have to create a custom location for my jar files ...
JavaScript string newline character?
...s, and Firefox 3.0 on Linux) use \n. They can all handle \n just fine when setting the value, though IE and Opera will convert that back to \r\n again internally. There's a SitePoint article with some more details called Line endings in Javascript.
Note also that this is independent of the actual l...
Shell command to tar directory excluding certain files/folders
...it off by default on most unix based OS's. From Bash manual: "globstar: If set, the pattern ** used in a filename expansion context will match all files and zero or more directories and subdirectories. If the pattern is followed by a ‘/’, only directories and subdirectories match."
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