Guruh talabasi Nurshodbek Shokirov

Mouse Specifications

USB track ball or Optical mouse.

Display (Monitor) Specifications

Screen Resolution	1024 x 768
Colors	256,000
Screen Size	15 inches
Dot Pitch	.27
Refresh Rate	>50hz

5 HOME TASK. Find out more information about Metasearch engines.

Metasearch engine

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Architecture of a metasearch engine
A metasearch engine (or search aggregator) is an online information retrieval tool that uses the data of a web search engine to produce its own results.^[1][2] Metasearch engines take input from a user and immediately query search engines^[3] for results. Sufficient data is gathered, ranked, and presented to the users.
Problems such as spamming reduces the accuracy and precision of results.^[4] The process of fusion aims to improve the engineering of a metasearch engine.^[5]
Examples of metasearch engines include Skyscanner and Kayak.com, which aggregate search results of online travel agencies and provider websites and Excite, which aggregates results from internet search engines.

Contents

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  1History
  
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  2Advantages
  
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  3Disadvantages
  
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  4Operation
  
  • 
    4.1Architecture of ranking
    
  • 
    4.2Fusion
    
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  5Spamdexing
  
  • 
    5.1Content spam
    
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    5.2Link spam
    
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    5.3Cloaking
    
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  6See also
  
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  7References