googology by satya
TRANSCRIPT
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Googology
-Presentation by Uday Satya
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"Googol" is the mathematical term for a 1 followed by 100 zeros.
Google is a Web search engine owned by Google.Inc, and is the most used search engine on the Web. Google receives several hundred million queries each day through its various services.
What is Google…???
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History………
Google began in January 1996 as a research project by Larry Page, a Ph.D. student at Stanford he was soon joined by Sergey Brin, a fellow Stanford Ph.D. student
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Google Headquarters at california
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Database Google is Searching
Search terms are in bold
Ads selected by Google based on your search terms
Approximate # of webpages found and time google took to collect those pages
Advanced search
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What happens when you Google?
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What is Page Ranking ???
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When you search for multiple keywords, Google first searches for all of your keywords as a phrase
So, if your keywords are loyola junior college, any pages on which those words appear as a phrase receive a score of X.
How Google Works1. Phrases
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Google then measures the adjacency between your keywords and gives those pages a score of Y
How Google Works
2. Adjacency
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will receive a higher adjacency score than a page that saysAlwal is also home to some of the famous schools and colleges in secunderabad like the St.Ann's High School, Bolarum which was set up in 1876 by a group of nuns from Italy. The other schools in the area are Valerian Grammar School (Bollarum), Loyola Academy, Model Mission High School, KV Bolarum and the Raja Praja High School…
A page that says Loyola Academy, Degree and Post Graduate College as well as Loyola Academy Junior College were founded by Rev. Fr. T. Balaiah, S.J. in 1976 at Old Alwal, ...
How Adjacency Works
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How Google Works
Then, Google measures the number of times your keywords appear on the page (the keywords’ “weights”) and gives those pages a score of Z.
A page that has the word Loyola four times, Junior three times, and College seven times would receive a higher weights score than a page that only has those words once
3. Weights
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Google takes
The phrase hits (the Xs), The adjacency hits (the Ys), The weights hits (the Zs), and About 100 other secret variables calculated by different algorithmsAnd, finally, displays the top 1,000 in order.
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Be specific ... because if you aren’t specific, you’ll end up with a bunch of garbage!
Google Tip #1
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Use quotes to search for phrasesGoogle Tip #2
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Use the - sign to excludeGoogle Tip #3
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Use the + sign to excludeGoogle Tip #4
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Boolean Logics
ba
dc
c b
a AND b
c OR d
c NOT b b
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Default is ANDIf you search for more than one keyword at a time, Google will automatically search for pages that contain ALL of your keywords
A search for Loyola College Alwal is the same as searching for Loyola AND College AND Alwal
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#5 Boolean OR (|)Sometimes the default AND gets in the way. That’s
where OR comes in.
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#6 How Insensitive!Google is not case sensitive. So, the following searches all yield exactly the same
results: Hero Honda Karizma
hero honda karizmaHERO HONDA KARIZMAhErO hOnDa kArIzMa
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#7 Google’s 10 Word LimitUntil recently, Google wouldn’t accept more
than 10 keywords at a time.– Any keyword past 10 was simply ignored.
Google now accepts up to 32 keywords.– But better Stick with 10.
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#8 WildcardsAs for wildcards, Google doesn’t offer
stemming wildcards but rather offers “full-word” wildcards.
For example, if you search Google for it’s a * world, Google shows you all of
the pages in its database that contain the phrase “it’s a small world” … and “it’s a nano world” … and “it’s a Linux world” … and so on.
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#9 Order of Your Keywords MattersBecause Google searches for phrases first, the order of your keywords matters
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Advanced OperatorsQuery modifiers
• filetype:• intitle:• inurl:• site:• Synonyms(~)
Alternative query types• cache:• link:• related:• info:
Other information needs• phonebook:• stocks:• define:• Google Calculator• Weather:• movie:
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#10 filetype:
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#11 inurl:
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#12 site:
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#13 Synonyms (~)
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#14 link:
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#15 define:
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#16 Calculator
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#17 Converter
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#18 weather:
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#19 movie:
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Combine all these symbols as often as possible Remember Tip #1 ?
Google Tip #20
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Future…
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