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What is “entropy and information gain”?
...he place to start is this (freely available online) book by David Mackay:
http://www.inference.phy.cam.ac.uk/mackay/itila/
Those inference methods are really far more general than just text mining and I can't really devise how one would learn how to apply this to NLP without learning some of the g...
Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...网上搜索到的方法对比 发现SCSI总线不一样。
参考文档http://www.doc88.com/p-5416264066182.html
按照网上的方法，修改SCSI 控制1的总线为LSI Logic 并行。修改好后，开启虚拟机的电源，发现机器进不了操作系统。
SCSI控制器0 和SCSI...
How to create composite primary key in SQL Server 2008
...
create table my_table (
column_a integer not null,
column_b integer not null,
column_c varchar(50),
primary key (column_a, column_b)
);
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游戏中的算法与计算思维 03：用洗牌理解随机与循环 · App Inventor 2 中文网
... 实例名
组件
本课配置
标签_标题
标签
Width=Fill parent；FontSize=24；TextColor=#183153；Text=记忆翻牌 · 第 3课
逐步搭建
先生成完整成对牌组，再从 length(牌) 到 2 倒序循...
Error :: duplicate files during packaging of APK
...
I think the string comparison is case sensitive. try with exclude 'META-INF/notice.txt'
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Manually adding a Userscript to Google Chrome
...alog:
Click Add.
Notes:
Scripts installed this way have limitations compared to a Greasemonkey (Firefox) script or a Tampermonkey script. See Cross-browser user-scripting, Chrome section.
Controlling the Script and name:
By default, Chrome installs scripts in the Extensions folder1, ful...
backbone.js & underscore.js CDN recommendation?
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http://www.cdnjs.com hosts a lot of less popular JavaScript frameworks, including:
backbone.js: //cdnjs.cloudflare.com/ajax/libs/backbone.js/1.0.0/backbone-min.js (HTTP | HTTPS)
underscore.js: //cdnjs.cloudflare.com/ajax/li...
Get final URL after curl is redirected
...re
looking for.
Something like
curl -Ls -o /dev/null -w %{url_effective} http://google.com
More info
-L Follow redirects
-s Silent mode. Don't output anything
-o FILE Write output to <file> instead of stdout
-w FORMAT What to output after completion
More
You might ...
find filenames NOT ending in specific extensions on Unix?
...ing like this:
## data section, list undesired extensions here
declare -a _BADEXT=(xml dll)
## code section, this never changes
BADEXT="$( IFS="|" ; echo "${_BADEXT[*]}" | sed 's/|/\\|/g' )"
find . -type f ! -regex ".*\.\($BADEXT\)"
Which results in:
./a/1.txt
./a/b/2.txt
./a/b/c/3.txt
./a/d/4....
Convert seconds to Hour:Minute:Second
...
here you go
function format_time($t,$f=':') // t = seconds, f = separator
{
return sprintf("%02d%s%02d%s%02d", floor($t/3600), $f, ($t/60)%60, $f, $t%60);
}
echo format_time(685); // 00:11:25
...