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EFFECTIVE
Google-ing
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Presented By:
AKHIL KAUSHIKDeptt. of C.S.E,
T.I.T&S Bhiwani
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How Old is Google?
• Answer: 13 years
• In September of 1998, Google Inc. opened its door in Menlo Park, CA. http://www.google.com/intl/en/corporate/history.html#1995)
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More About Google
• “Google” is a play on the word “googol”which is the mathematical term for 1followed by 100 zeros and “…reflects thecompany's mission to organize theimmense, seemingly infinite amount ofinformation available on the web.”
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A Unique Company
Both are Stanford Graduate students who built a search engine
called “BackRub” that used links to determine the importance of
individual web pages.
By 1998 they had formalized their work with 25 million pages,
creating the company you know today as Google.
Google founders
Sergey BrinLarry Page
Source: http://www.google.com/intl/en/corporate/tenthings.html
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A Unique Company
Worldwide, Google employed 10,000 full-time employees as of now
In 2007, Google introduced Universal Search
Work Environment:
Informal: Lava lamps, seashores as desks, exercise balls for chairs,
and dogs roaming the halls…
Google: The interface is clear and simple.
Pages load instantly.
Placement in search results is never sold to anyone.
Advertising on the site must offer relevant content and not be a distraction.
No pop-up ads allowed.
Google founders
Sergey BrinLarry Page
Why do we love Google?
• Size and scope: Now indexing over 20 billion web pages (conservative estimate).
• Relevance of Results: PageRank
• Diversity of Search: Image, News, Book Search, Scholar, Blog Search, Finance, Video . . . and much, much more.
• Other Tools: Google Maps, Picasa, Blogger, Gmail, Calendar, Docs & Spreadsheets . . .
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But…
• We may love Google, but few users know how to use full search capabilities.
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Effective Googling
• How does Google interpret basic search?
– Google places “AND” operator between all search terms entered in basic search box.
– Automatically searches for some plural/singular and grammatical variants.
• You enter: news reader
• Google searches: news AND reader OR readers
• Does not search as exact phrase unless quotes present!
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Expand Search With Synonym? Use a “tilde”e.g.: “~infosys” finds IT companies similar to Infosys
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Search by filetype (pdf, ppt, xls, doc) e.g.: “.Net Framework” filetype:ppt
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Negative Search Termse.g.: “nano –car” will return the results with word ‘nano’ but not Tata Nano car
Limit your search results to a particular web sitee.g.: “sparsh site:infosys.com” will get the pages from infosys.com where the
word ‘sparsh’ is referred `
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Search for sites that link to a particular website:e.g.: “link:infosys.com”
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You’ve found a useful website & want to find other sites like it:
e.g.: “related:www.infosys.com”
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Google is a DictionaryFind definition of a word or a phrase?
e.g.: define: administration
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Google is a Calculator as well
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Google is Converter too..!Convert currency, units and a lot more
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Use Specialty Search Functions
• Google News: news.google.com
• Google Images: images.google.com
• Google Blog Search: blogsearch.google.com
• Google Finance: finance.google.com
• Google Scholar: scholar.google.com
• Google Book Search: books.google.com
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Google News Alerts
• Tracking an event in the news?
• Create your own Google News alert – it’sfree!
• Can choose to monitor latestdevelopments on web pages, blogs,Google news, Google discussion grouppages, or all of these sources.
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Google Scholar
• Covers: law, medicine, social sciences,arts, humanities, business, & finance.
• Included items: peer-reviewed papers,theses, book excerpts, abstracts & full-textarticles
• Sources for items: academic publisherweb pages, professional societies, preprintrepositories, universities, & otherscholarly organizations.
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Google Book Search
• Searches full textof indexed books.
• Library partners:UC, Princeton,Stanford, Univ. ofMichigan, Univ.of Texas, Oxford,UVA, Univ. ofWisconsin, ……
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Something exciting at last….
•Localized search
•Movie search
•Code search
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local.google.co.inEffective localized search solution
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google.co.in/movies Find theatres running your desired movies in your city..wow
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google.com/codesearch
search public source code
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Interesting stuff
• Gmail
• Google Docs
• Google Blogger
• Google +
• Google Picnic
• Google Picasa
• Google Panorama
• Google Mobile Apps and so on…
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PageRank
• Google interprets a link on page A goingto page B as a vote - by page A, for page B.
• Google also analyzes the page that caststhe vote.
• Votes cast by pages that are themselves"important" weigh more heavily.
• PageRank is just one of the criteria now.
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Working of Dr. Google• Google continuously traverses the web in real
time with software programs called webspiders, crawlers, or “Googlebots”.
• A crawler visits a page, copies the content andfollows the links from that page to the pageslinked to it, repeating this process over andover.
• Next Google processes these pages and createsan index, much like the index in the back of abook.
• The index is parceled into manageable sectionsand stored across a large network of computersaround the world.
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Working of Dr. Google
• The query is sent to Google machines andcompared with all the documents stored inindex to identify the most relevant matches.
• In a split second, Google prepares a list of themost relevant pages and also determines therelevant sections and bits of text, images,videos and more.
• We get a list of search results with relevantinformation excerpted in “snippets” (short textsummary) beneath each result.
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