从一段文本中提取关键短语的最佳方法是什么？我正在编写一个关键字提取工具:类似这样的东西.我找到了一些用于Python和Perl的库来提取n-gram,但是我在Node中写这个,所以我需要一个JavaScript解决方案.如果没有任何现有的JavaScript库,有人可以解释如何执行此操作,以便我自己编写吗？
Chrome似乎从边距内部测量元素宽度,包括填充,但Firefox和IE测量边框所在的框宽度(不包括填充但内部边距).从边框测量元素宽度对我来说很有意义,并且在编码时也很有用,因为打开边框会让你很容易看到元素的宽度但我的问题是CSS规范说的是测量宽度的正确方法一个元素,如果铬错误或IE和Firefox是
谢谢你的帮助
只是试图让简单的http服务器运行,并且没有关于ruby的线索
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/backports/uri/common_192.rb:53:in `remove_const': constant URI::WFKV_ not defined (NameError)
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/backports/uri/common_192.rb:53:in `<module:URI>'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/backports/uri/common_192.rb:19:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/utils.rb:12:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/utils.rb:12:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/request.rb:1:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/request.rb:1:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/showexceptions.rb:3:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.5/lib/rack/showexceptions.rb:3:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra/showexceptions.rb:1:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra/showexceptions.rb:1:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra/base.rb:12:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra/base.rb:12:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra.rb:4:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/sinatra-1.3.1/lib/sinatra.rb:4:in `<top (required)>'
from http.rb:1:in `require'
from http.rb:1:in `<main>'
这是我在centos上的ruby版本
ruby 1.9.1p376 (2009-12-07 revision 26041) [x86_64-linux]
任何帮助将非常感激
我正在为SEO写一个免费的工具......从seomoz实现api,旗帜看起来像这样
URL Metric,Bit Flag
Title,1
URL,4
Subdomain,8
Root Domain,16
External Links,32
Links,2048
mozRank,16384
mozTrust,131072
这些只是一些,但我不知道如何计算javascript中的正确位标志...它只是我想要使用的标志的所有整数的OR？一个小片段向我展示如何制作一个包含其中一些标志的var会很棒......
谢谢你的帮助!