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How Do Search Engines Work ?


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#1 petrushkagoogol

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Posted 26 April 2018 - 11:18 PM

goobug_Scrin_4.png

 

 
In the graphic, the quoted identifier string search returns 3 records in 0.25 seconds,
whereas, the search based on individual keywords returns 272 records in 0.24 seconds.
 
In T-SQL, this would be inverted I guess, as string to string, character to character matching, with quoted identifiers would be faster.
 
Do you agree ?
 
If this is the case, then how do search engines work ?  :sherlock:


#2 sanctus

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Posted 02 May 2018 - 05:05 AM

In your first example you search for exact matches in the second returned results are scored by how many words of your query match. but that it has to match all is not a requirement



#3 asustechsupport

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Posted 03 May 2018 - 12:36 AM

Search engine optimization is the process of affecting the online visibility of a website or a web page in a web search engine's unpaid results.

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#4 Thoth101

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Posted 29 April 2020 - 09:47 PM

I am not sure how it works. But I use Duckduckgogo because googles new algorithms seem to only bring up mainstream articles when searching for something. It seems to block many things that aren't mainstream now. Last thing I want to do is read mainstream propaganda.