Searching for information on-line...iClicker Question I know a lot about searching for information...
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Searching for information on-line
Transcript of Searching for information on-line...iClicker Question I know a lot about searching for information...
Searchingforinformationon-line
iClicker QuestionIknowalotaboutsearchingforinformationon-line.
A. StronglyagreeB. AgreeC. Don’tagreeordisagreeD. DisagreeE. Stronglydisagree
Overview
• Backgroundofinformationavailabilityon-line• Booleansearchingstrategies• Google(searchengine)specificstrategies• Scholarlysources– LibraryDatabases– GoogleScholar
• Searchreliability
iClicker QuestionWhenyousearchGoogleoranyothersearchengine,howmanypagesofresultsdoyoulookatbeforeendingyoursearch?
A. <1pageB. 1pageC. 2pagesD. 3pagesE. >3pages
Informationavailability
• Searchenginesaccountforroughly10%ofcontentavailableontheInternet
• Whatistheother90%thatwecannotfindby“Googling”forinformation?– Webcontentthatcannotbeindexed
SearchEngines10%
DeepWeb90%
Internet
Indexedinformation(searchable)• SearchenginesindextheWeb(typicallybyfollowinglinkswithcrawlersalsoknownasspiders)
• Spidersfollowlinksonwebpagestootherpagestodeterminewhatexistsanditsimportance
• Themorelinkstoapagetypicallyindicateshowimportantitisandhelpswithitssearchengineranking
Whatisnotindexed?• Librarycatalogs• Bankaccountinformation• Storeaccountinformation• BasicallyanyWebsitethatispasswordprotected
• Othersiteschoosetobeomittedfromsearchresults
• Few“darknet”servicessuchasTor(anonymousnetwork)
Howdowefindinformation?
SearchEngines10%
DeepWeb90%
Internet
Thoughtquestion
• Howdowesearchfor:
UniversityofHawai‘iatMānoa
Booleansearchingstrategies
• AND:resultmustincludetermscombinedbytheAND
• OR:resultmustincludeanytermsseparatedbyanOR
• NOT:resultexcludesspecifictermsaftertheNOT• (parenthesis):performthesetasksbeforeothers• “Quotes”:resultmustincludeanexactcharacterstring
Searchstrategies
Cats Dogs
ANDcatsANDdogs
ORcatsORdogs
NOTcatsNOTdogs
NOTdogsNOTcats
(Parenthesis)(catsANDdogs)NOTpets
“Quotes”“Feralcats”
Feralcats
Practice
• HowwouldyousearchforItaliancuisinewithoutbread?
Practice
• HowwouldyousearchforItaliancuisinewithoutbread?
(ItalianANDcuisine)NOTbread
Practice
• HowwouldyousearchforItaliancuisinewithoutbread?
Practice
• HowwouldyousearchforItaliancuisinewithoutbread?
(ItalianANDcuisine)NOTbread
Workspace1(workbooks)
• HowwouldyousearchforItalianorFrenchcuisinewithouthighcaloriedishes?– Drawtheanillustrationdemonstratingthesearchandincludethesearchstring
Exampleillustration:
Examplestring:(ItalianANDcuisine)NOTbread
Practice
• HowwouldyousearchforItalianorFrenchcuisinewithouthighcaloriedishes?
ItalianORFrench
Practice
• HowwouldyousearchforItalianorFrenchcuisinewithouthighcaloriedishes?
(ItalianORFrench)ANDcuisine
Practice
• HowwouldyousearchforItalianorFrenchcuisinewithouthighcaloriedishes?
((ItalianORFrench)ANDcuisine)NOT“highcaloriedishes”
Practice• HowwouldyousearchforItalianorFrenchcuisinewithouthighcaloriedishes?
((ItalianORFrench)ANDcuisine)NOT“highcaloriedishes”
“Italiancuisine”OR“Frenchcuisine”NOT“highcaloriedishes”
(“Italiancuisine”OR“Frenchcuisine”)NOT“highcaloriedishes”
iClicker QuestionWhichofthefollowingsearchesbestreflectsthefollowingsearchillustration?
A. ((ItalianANDFrench)ORcuisine)AND“highcaloriedishes”B. ((ItalianANDFrench)ORcuisine)NOT“highcaloriedishes”C. cuisineAND“highcaloriedishes”ANDItalianANDFrenchD. (ItalianANDFrenchANDcuisine)NOT“highcaloriedishes”E. (ItalianANDFrenchANDcuisine)AND“highcaloriedishes”
iClicker QuestionWhichofthefollowingsearchesbestreflectsthefollowingsearchillustration?
A. ((ItalianANDFrench)ORcuisine)AND“highcaloriedishes”B. ((ItalianANDFrench)ORcuisine)NOT“highcaloriedishes”C. cuisineAND“highcaloriedishes”ANDItalianANDFrenchD. (ItalianANDFrenchANDcuisine)NOT“highcaloriedishes”E. (ItalianANDFrenchANDcuisine)AND“highcaloriedishes”
Workspace2(workbooks)
• Drawthefollowingillustration
• Writewhatyouaresearchingforinnaturallanguage
• Writeacorrectsearchstring
Workspace2(workbooks)
• Drawthefollowingillustration
• IamsearchingforhighcaloriedishesthatareItaliannotFrenchorcuisine
• ItalianAND“highcaloriedishes”NOTFrenchNOTcuisine
Googlesearchingstrategies
• Conversions/calculations:convertingvariablesorcalculatingvalues
• Regions:searchingbyregion• Lastupdate:searchingbasedontime• Site:searchingwithinaspecificsite
Conversions/calculations
• 5+10-8*10
Conversions/calculations
• 1600metersinmiles
Conversions/calculations
• 88FahrenheitinCelsius(FinC)
Region
• Searchforinformationfromaspecificlocation• Acquireinformationfromaregion’sperspective–WriteapaperontheJapanTsunamiin2011fromthepeople’sperspectiveinJapan
– PairwithGoogletranslatetogiveyouagoodideaofwhattheperspectivewasatthetime
Region
Translate
Lastupdate
• Goodforcurrentinformationthatchangesquickly
• TherewereincorrectreportsofGabrielleGiffords’shooting,wherenewsoutletsreportedthatshediedinashooting– Basedonthetimeoftheupdate,youmaygetonereportingherdeathandanotherreportingthatshewasshotandincriticalcondition
Lastupdate
Sitesearching
• Searchforinformationwithinasite• Goodforlocatinginformationthatyouknowisinaspecificsite– Example:searchingforthefinalexamschedulewithinwww.hawaii.edu
– Searchterms:site:www.hawaii.edu manoa finalexamschedule
Sitesearching
Thinkaboutit• Whenwouldyouusethefollowingsearchstrategiesinengines:– Conversions/calculations– Region– Lastupdate– Sitesearching
• Therearealotmoresearchrefinementtools.Formore,checktheGoogleAdvancedsearchpage(settings>AdvancedsearchinanyGooglesearch)
• Keyisknowingwhatoptionsareavailableandhowyoumayputthemtogether
Scholarlysources
• GoogleScholar– SimilartoGooglesearch(scholar.google.com)
• UHMLibrarydatabases
Librarydatabases
• Hostingcompany(EBSCOHost)• Database(AcademicSearchComplete)
Librarydatabasesearchstrategies
• Boolean• Fieldlimiters– Text(TX)– Author(AU)– Title(TI)– Subjectheading(SU)
• Readingasearchresult
Fieldlimiters
Searchresults
Searchresults
Searchresult
Searchresult
Thoughtquestion
• Howwouldyousearchforinformationforareportwithinyourmajor?
• Whattypesofsubjectheadings(SU)aretypicalforyourarea?
Searchreliability
• Scholarlysources:typicalforschoolpapers• GoogleScholar– QuickandmirrorsGoogle’ssearchengine–Mayhaveinaccurateresults
• Librarydatabases– Limitedtocontentinthedatabase– Accurateresults
iClicker QuestionAccordingtoGoogleScholar,howmanyarticlesarepublishedintheyears2020-2050withthekeywordschool?
A. 0B. 1-10C. 11-50D. 51-100E. >100
Searchreliabilityexamples
Librarydatabases
iClicker QuestionWhichofthefollowingsearchesshouldhavethemostsearchresultsusingGoogle?
A. businessethicshumanitiesB. businessethicshumanities-artC. businessethicshumanities-artsD. A,B,andChavethesameresultsE. Cannotdeterminebasedoninformationgiven
Workspace3• BrieflydescribethefollowingGooglesearchlimiters:– Conversions/calculations– Regions– Lastupdate– Site
• BrieflydescribethefollowingEBSCOHost databaselimiters– Text(TX)– Author(AU)– Title(TI)– Subjectheading(SU)
• Describepossibleissueswithsearchreliability
iClicker QuestionIlearnedalotaboutsearchingforinformationon-line.
A. StronglyagreeB. AgreeC. Don’tagreeordisagreeD. DisagreeE. Stronglydisagree
Italian French
cuisine
highcaloriedishes
