Search Engines

Description

A mind map on how to narrow search results and how search engines wrok
Christine Ukah
Mind Map by Christine Ukah , updated more than 1 year ago More Less
Lucy Corlett
Created by Lucy Corlett over 4 years ago
Christine Ukah
Copied by Christine Ukah over 4 years ago
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Resource summary

Search Engines
  1. How do they work?
    1. Spider program
      1. A spider program is an algorithm that a search engine uses to find results that might be useful later. It finds a website and visits any hyperlinks (links to another website) and then follows the hyperlinks from that site and so on until it has visited every website. Ths is why it doesn't take hours to load search results: the computer already has them saved!
      2. AIl
        1. Computers infer what you mean by using AI programming. For instance, if you searched for Travel To Mars, it would automatically get rid of anything to do with the Roman god Mars using information from the other words in your search.
        2. Filter search
          1. Search engines look for keywords in the title of the website or the actual content of the website. This is how search engines decide what to put at the top of the page and what to put further down.
        3. How to narrow a search
          1. File type
            1. To narrow your results, add a file type-like pdf-into your search to limit the results to that type of file
            2. Key words
              1. Only use necessary words in your search. For example, instead of typing "the very best toys for children aged 5", search for "top toys 5-year-olds"
              2. Search settings
                1. Use search settings to narrow your results even further. You can say specific words that have to be included in the website, a range of numbers that have to be included, words that can't be included and many more.
                2. Updates
                  1. You can set a search to have results that have been last updated within a certain range of time like the last five years or the last moth, or something even more specific.
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