Principles of searching algorithms used by search engines: Difference between revisions

Revision as of 09:07, 5 January 2018

Web Science^[1]

Most popular search algorithms establish a "page rank" based on how many other pages link to it. Search algorithms weight the links between pages. A page which has 10 links to it has a higher weight than a page which has 2 links to it.

Note: from the IB: Students will be expected to understand only the principles of the PageRank and HITS algorithms

PageRank (a search algorithm used by google) works by counting the number and quality of links to a page to determine a rough estimate of how important the website is. The underlying assumption is that more important websites are likely to receive more links from other websites.^[2]

HITS (Hyperlink-Induced Topic Search) assigns two scores for each page: its authority, which estimates the value of the content of the page, and its hub value, which estimates the value of its links to other pages.

Do you understand this?[edit]

Standards[edit]

Outline the principles of searching algorithms used by search engines.

References[edit]

[1] ttp://www.flaticon.com/

[2] ttps://en.wikipedia.org/wiki/PageRank

[1]

[2]

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 [[file:Connection.png|right|frame|Web Science<ref>http://www.flaticon.com/</ref>]]
-Most popular search algorithms establish a "page rank" based on how many other pages link to it. There is a more complex process of crawling and indexing that is not in the scope of this page.
+ Most popular search algorithms establish a "page rank" based on how many other pages link to it. Search algorithms weight the links between pages. A page which has 10 links to it has a higher weight than a page which has 2 links to it.
 ''Note: from the IB: Students will be expected to understand only the principles of the PageRank and HITS algorithms''