PageRank is an algorithm used by Google Search to rank websites in their search results. It works by counting the number and quality of links to a page to determine a website's importance. Websites that receive more links from other important websites are considered more important under this system. The key principles are that links from websites like .edu and .gov domains carry more weight, spam websites can hurt a site's ranking, and it is better to receive a few links from high-quality sites than many links from low-quality sites. While the full details of Google's ranking systems are not known, the basic concept of PageRank focusing on link analysis remains an important part of how Google evaluates websites.

1. Page Rank
200702052
Jongmin Park
2013.03.11
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2. Contents
Introduction
Basic Principle
What I think
Q&A
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3. Introduction
• What is PageRank?
PageRank is an algorithm used by Google Search to rank
websites in their search engine results.
First introduced by Sergey Brin & Larry Page in 1998
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4. Introduction
Google Says :
PageRank 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.
Wikipedia Shows :
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5. 5
http://en.wikipedia.org/wiki/PageRank

6. Hard to understand
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http://en.wikipedia.org/wiki/PageRank

7. Easy Pictures
I got 10/3 * @
10 Score
I got 10/3 * @
I got 10/3 * @
PageRank has assume Random Suffer Model that works visiting every
website.
But the user who want to find good website doesn’t feel good at
chosen website, the user is trying to visit other website.
That probability is going to be ’@’ (Damping Factor)
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8. Basic Principle
1. It is important that who links to you. If low score web site’s
score links your web site, that doesn’t good for your score too
2. Google trusts Government website. It’s good if .edu or .gov
websites make a connection with your website. It’s going to make
your score high
3. If spam websites are trying to make a connection with your
websites, Google is also trying to misunderstand that you’re a
website as a spam.
4. Better : Less, but Higher score web site link your website
Bad : Many, but Small score web site link your website
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9. What I think
In Google search algorithm, We don’t understand whole things
about Google’s strategy though,
The main principle = (Believable web site has big score like .gov
and .edu and if they make links, liked web site’s score have risen)
doesn’t change actually.
Google is the most successful company in the world
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10. Q&A
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11. Thank You
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