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Difference between Search engine and Metasearch engine

 
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 PostPosted: Fri May 10, 2013 3:59 am Reply with quote  
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  yakshithathilak

Joined: 07 May 2013
Posts: 24
Location: United States

A meta-search engine is a search tool that sends user requests to several other search engines and/or databases and aggregates the results into a single list or displays them according to their source. Metasearch engines enable users to enter search criteria once and access several search engines simultaneously. Metasearch engines operate on the premise that the Web is too large for any one search engine to index it all and that more comprehensive search results can be obtained by combining the results from several search engines. This also may save the user from having to use multiple search engines separately.

On the other hand, a subject directory is a catalog of sites collected and organized by humans. Subject directories are often called subject "trees" because they start with a few main categories and then branch out into subcategories, topics, and subtopics. To find the homepage for the Atlanta Braves at Yahoo!, for example, select "Recreation & Sports" at the top level, "Sports" at the next level, "Baseball" at the third level, "Major League Baseball" at the fourth level, "Teams" at the fifth level, then finally "Atlanta Braves."
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