internet resources discovery

Internet Resources Discovery

Mastering Google

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Contents• Basics

– Query options– Results page– Advanced search– Preferences

• Services• Advanced Operators

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Basics• AND implied – Google returns only pages that

match all the search terms.• OR - | - “search engine” Notess OR Bates• Google is not case sensitive.• 32 words limit (* excluded).

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Exact Term Matching• If you search for…• cheap• TV• effects• children• car• Calif OR CA• NYC

• Google won’t find…• inexpensive• television• influences• kids• automobile• California• New York City

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Finding Synonyms~ • Example: • ~inexpensive will return:

– inexpensive, cheap, affordable, low cost

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Word Variation – Automatic Stemming

• A technique to search on the stem/root that has multiple endings.

• Example: Child Bicycle– Child: children children’s– Bicycle: bicycle bicycles bicycle’s bicycling

bicyclists• + or “” will disable stemming.• No variations with single term.

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Google Ignores Common Words• Called “stop words”.• Example: on, where, how, la, …• Use + to include stop words.• If only stop words are queried – all will be included.

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More…• Google favors results that have your search terms near

each other.• Google gives higher priority to pages that have the

terms in the same order as in your query:– New York library – vs. – new library of York

• Google ignores some punctuation and special characters including ,.;?[]()@/#:– Dr. Ruth is the same as Dr Ruth.

• A term with ‘ won’t match a term without:– we’re won’t match were.

• A term with diacritic (accent) won’t match a term without:– Schr?der won’t match Schroder

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Hyphens”-“ • When Google encounters a hyphen (-) it matches:

– The term with the hyphen.– The term without the hyphen.– The term with the hyphen replaced by a space.

• Example 1:– part-time matches “part-time”, “part time” and “parttime”.– part time matches “part-time” and “part time”.– Parttime matches parttime.

• Example 2:– e-mail matches “e-mail”, “e mail”, and “email”– email matches email

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Exact phrase matching• “” exact phrase matching:

– “search engine”– “to be or not to be”

• Google does not perform automatic stemming on phrases.

• Google indexes only the first 101KB of a page (example: http://www.esefer.net/kabala.html).

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Forcing a term + or removing- • + forces a term/stop word.• Example: Star Wars +I• Disables automatic stemming.• - will remove a term from the results.

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*wildcards• * replaces a word in a phrase.• Examples:

– “Francis * Coppola”– California election “Oct * 2003” OR

“10/*/03” OR “October * 2003”• Not counted as part of the 32 words limit.

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Results Page

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More on the Results Page

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Results - Tip

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Translate this page

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Advanced Search Interface (1)

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Advanced Search Interface (2)

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Google Preferences (1)

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Google Preferences (2)

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Google Services

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Google Directory

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Google News

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Google Images

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Google Groups (1)

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Google Groups (2)

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Froogle (1)

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Froogle (2)

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Catalogs (1)

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Catalogs (2)

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Google Maps

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Google Local

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Google Local Search Result

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Google Scholar (1)

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Google Scholar (2)

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Specialized Searches

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Google Calculator

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Calculator and Conversions• 5+2*2 • 2^20 • sqrt(-4) • half a cup in teaspoons • 160 pounds * 4000 feet in Calories

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Search By Number• UPS tracking numbers: "1Z9999W99999999999"• FedEx tracking numbers: "999999999999“

• USPS tracking numbers: "9999 9999 9999 9999 9999 99" • Vehicle ID (VIN) numbers: "AAAAA999A9AA99999" • UPC codes example: "073333531084“• Telephone area codes: "650“• Patent numbers: "patent 5123123“

Remember to put the word "patent" before your patent number.

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GoogleAlert

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Google Answers

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Google Desktop/Toolbar

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Numrange”..“ • 1..4• 987.6..1001.34 • numrange:1-4 or numrange:1..4• plain number search also will match a number with a

comma: – 2001 will match 2001 and 2,001

• numrange will also find fractions in the range:– 1..4 will also match 2.4

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Pricerange• $250..$1000• pricerange: 250-1000• Only $, no other currencies supported

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Advanced Search Operators• filetype: file Format

– filetype:pdf• define

– define:Internet• Occurences

– intitile: allintitle: in the title– intext: allintext: in the text– inurl: allinurl: in the URL– inanchor: allinanchor: in the links

• site: domain• related: similar• link: links

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Examples• Larry Page search engine site:stanford.edu• Volunteering site:org• Link:www.doctorswithoutborders.org• Allintitle:detect plagiarism• Google tutorial OR introduction OR review OR

help• Bush –george –kate• Web page evaluation checklist filetype:pdf

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Non-combining Operators• All the search operators beginning with "allin“:

– e.g., allinanchor:, allintext:, allintitle:, and allinurl:. • Syntax that requests special information:

– e.g., define:, phonebook, bphonebook, rphonebook, stocks:.

• Page-specific search operators:– e.g., cache:, info:, related

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Comments• Hebrew Google is not perfect

– example: /מלך is not the same word during המלךthe search.

– Having problems with Visual Hebrew.• &filter=0 removes Google filtering/extend

results.• site:google.com inurl:isbn OR inurl:articleid

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Almost Google Services = Fun!• Guide to cool Google sites http://www.googleism.com/ • Some nice projects/demos http://douweosinga.com/projects• Google Visualizer http://

www.touchgraph.com/TGGoogleBrowser.html • Soople expert search http://www.soople.com/• www.staggernation.com gaps garbo gawsh• Query statistics Google/press/zeitgeist• GoogleFan http://googlefan.com/• CantFindOnGoogle www.cantfindongoogle.com • GoogleRankings www.googlerankings.com • GoogleWhack www.googlewhack.com • GoogleFight www.googlefight.com

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Google Tutorial Links1. Google Help Index http://

www.google.com/help/index.html2. Google Guide  http://www.googleguide.com3. Preferences http://

www.googleguide.com/preferences.html4. Feature History

http://www.googleguide.com/feature_history.html5. Google Review

http://www.searchengineshowdown.com/features/google/index.shtml