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推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...权重如下: 基于模型的算法由于快速、准确,适用于实时性比较高的业务如新闻、广告等,而若是需要这种算法达到更好的效果,则需要人工干预反复的进行属性的组合和筛选,也就是常说的Feature Engineering。而由于新闻的时...
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How to configure heroku application DNS to Godaddy Domain?

...h Heroku, and it worked perfectly. Very clear and well explained. Note: Skip the part about CNAME yourdomain.com. (note the .) and the heroku addons:add "custom domains" http://blog.heroku.com/archives/2009/10/7/heroku_casts_setting_up_custom_domains/ To summarize the video: 1) on GoDaddy and ...
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Are HTTPS headers encrypted?

...ers. That's why SSL on vhosts doesn't work too well - you need a dedicated IP address because the Host header is encrypted. †The Server Name Identification (SNI) standard means that the hostname may not be encrypted if you're using TLS. Also, whether you're using SNI or not, the TCP and IP header...
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Detecting 'stealth' web-crawlers

...I developed examined web server logs for excessive activity from any given IP address and issued firewall rules to block offenders. It included whitelists of IP addresses/ranges based on http://www.iplists.com/, which were then updated automatically as needed by checking claimed user-agent strings ...
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What is /dev/null 2>&1?

... & indicates a file descriptor. There are usually 3 file descriptors - standard input, output, and error. – Testing123 Sep 15 '17 at 17:22 ...
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Nginx reverse proxy causing 504 Gateway Timeout

...ed just fine: server { location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $http_host; proxy_http_version 1.1; proxy_set_header Connection ""; proxy_pass http://localhost:5000; } } Have a look at this posts which exp...
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phpcms与ucenter整合常见问题与解答 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...$member['password']; $email = $member['email']; $ip = $_SERVER['REMOTE_ADDR']; $time = time(); $userdata = array( 'uid'=>$uid, 'username'=>$username, 'password'=>$password, 'email'...
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Has anyone ever got a remote JMX JConsole to work?

...a SSH login. All Communication will be tunneled over the SSH connection. TIP: This Solution works no matter if there is a firewall or not. Disadvantage: Everytime you restart your java process, you will need to do all steps from 4 - 9 again. 1. You need the putty-suite for your Windows machin...
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GIT clone repo across local file system in windows

...gt;/<share>/<path> For example, if your main machine has the IP 192.168.10.51 and the computer name main, and it has a share named code which itself is a git repository, then both of the following commands should work equally: git clone file:////main/code git clone file:////192.168.10...
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内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术

...开销。 虚拟内存环境中的行为。 小的或者大的对象。 实时保证。 每一个实现都有其自身的优缺点集合。在我们的简单的分配程序中,分配非常慢,而回收非常快。 另外,由于它在使用虚拟内存系统方面较差,所以它最适...