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Google搜索引擎的排名原则

    您知道Google一共参考了多少个排名的原则么 ?在google的网站里面 ,Google自己承认超过100个 ,但是实际上呢 ?告诉各位绝对不是只有100个 ,举个例子 ,时间因素没有提 ,镜像因素没有提 ,重复问题没有提 ,网页结构没有提 ,中文的处理>式更不可能提了(其实google对中文的处理还是很幼稚的)...... ,其实Google绝对不会把他们的家底透漏出来 ,否则Google就不用混了 。

各位可以在Google的网站里面找到以下他们承认的一些因素 。

End User Features  

• Google quality and ranking  
  For each query,Google factors in 100 variables, including anchor text, URL patterns, fonts and positioning data to calculate relevance.  
• Dynamic page summaries
  Search result summaries contain dynamically generated snippets of text that show how your query was used on the page.  
• Results grouping
  Multiple results from the same subdirectory are grouped together, making search results easier to read quickly.  
• Automatic spellchecker
  Google's self-learning spellchecker automatically detects misspellings and suggests corrections. Using technology developed by Google, it is far more accurate than industry standard software.  
• Cached pages
  Caches copies of every page in your index, so search results can be viewed when the original sites are down.  
• Hit highlighting
  Query terms are highlighted on cached pages, allowing users to quickly find which parts of a page are relevant to their queries.  
• View as HTML
  Non-HTML search results are automatically reformatted as HTML, enabling users a quick glimpse at the content without having to launch the original application in which the content was created.  
• Sort by date
  Enables users to get at time-sensitive information first. Dates can be identified in any international format.  
• Advanced boolean search
  Offers more than 10 special query terms for advanced search functionality and supports Boolean AND, OR, and NOT searches.  

Administrator Features

• Web-based Admin Console
  The admin console supports multiple logins and administrative roles for crawling, serving, and monitoring with an intuitive, easy-to-use interface.  
• Subcollections  
  Categorize searches according to URL patterns.
• Synonyms
  Define synonyms for company-specific acronyms or terminology and have those terms be displayed as suggested alternative queries.  
• Keymatch
  Define matches between URLs and keywords so that the targeted URL displays above the main set of search results.
• Look and Feel
  Search results customizable using XSLT stylesheets.
• Reporting
  Web-based reports show daily and hourly result sets, top queries, special feature usage, and more. Easily export the reports for use in other reporting tools.  
• URL Tracking
  Analyzes all crawled content and hosts, making it easy for administrators to identify problematic servers, errors, and sources of content.  
• Remote Diagnostics  
  Comes equipped with a modem connection for remote maintenance by Google support if necessary.

Enterprise Integration

• Web Servers  
  The Google Search Appliance maps all the web documents on your network accessible via hypertext transfer protocol (HTTP) in a process known as crawling, then creates an index of those documents.
• Secure Search
  The Google Search Appliance has the capability to crawl password-protected areas and HTTPs content. Secure information protected by basic authentication or NTLM is shown only to users who have access authorization.  
• Proxy Servers
  Crawls content located behind proxy servers.  
• Lotus Domino
  Fast, efficient crawling of Lotus Domino servers.
• Meta Tags
  Supports standard meta tag fields, enabling search narrowing and filtering based on meta tag values. Also can return meta tag data for display in search results.  
• File Types  
  Search more than 200 file types, including HTML, Microsoft Office™, PDF, PostScript, WordPerfect, Lotus, and many others.
• Languages
  Able to restrict searches to any one of 28 languages.



实际上 ,几乎每个月Google都在改变算法 ,如果没有坚持每个月u深入了解 ,不出三个月就被Google剔出搜索引擎专家的行列了 ,这也是为什么国内没有几个人愿意深入研究的原因了 。