Google and Google Scholar for Research Information
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Presentation on search tools for research information with the emphasis on Google and Google Scholar

Presentation on search tools for research information with the emphasis on Google and Google Scholar

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  • 03/03/13 (c) Karen Blakeman 2013

Google and Google Scholar for Research Information Presentation Transcript

  • 1. Google and Google Scholar for Research Information Tuesday, 26th February 2013 Presenter Karen Blakeman karen.blakeman@rba.co.uk Slides available at http://www.rba.co.uk/as/ and on authorSTREAM and Slideshare03/03/13 This presentation is licensed under a Creative Commons Attribution 3.0 License1 www.rba.co.uk
  • 2. Outline for the session Google vs Google Scholar Five things you need to know about Google Advanced search techniques for research information Google Scholar Other specialist tools Homework! Top 10 Tips03/03/13 www.rba.co.uk 2
  • 3. Google Google ScholarAnything it can find on the web Research information, patents, Web sites, blogs, images, videos, legislation (US) from known podcasts, PDFs, spreadsheets, publishers presentations, discussions Open accessSometimes includes articles fromScholar at the top of the results Institutional repositoriesAuthor self archived repositories(may NOT be included in Scholar) Anything that is structured like an academic paper Separate from main Google03/03/13 www.rba.co.uk 3
  • 4. Five things you need to know about Google1. Google personalises your search Non-personalised search Personalised search03/03/13 www.rba.co.uk 4
  • 5. Five things you need to know about GooglePersonalises search based on – location – past search history – past browsing activity – activity in other areas of Google e.g. YouTube, Google Reader – content from contacts in your personal networks may be given priority – what you and others have ‘liked’, g+103/03/13 www.rba.co.uk 5
  • 6. “Un-personalise” your search Chrome - New incognito window FireFox - Tools, Start Private Browsing Internet Explorer – Tools, InPrivate Browsing Switch off web/search history Log out of your Google account Clear cookies03/03/13 www.rba.co.uk 6
  • 7. Five things you need to know about Google2. Google automatically looks for variations on your termsand omits termsTo force an exact match and inclusion of a term in a search prefixit with ‘intext:’ UK public transport intext:biodiesel statistics“..” around terms does not always workVerbatim – runs your search exactly as you have typed it inGoogle Scholar – does not drop termsGoogle Scholar – can still use ‘+’ before a term to force an exactmatch03/03/13 www.rba.co.uk 7
  • 8. Google VerbatimRun your searchOn the results page select Search tools, All results, Verbatim03/03/13 www.rba.co.uk 8
  • 9. Five things you need to know about Google3. Google web search does not search everythingTwo indexes: main, default index and the supplemental index(lower “quality” material)Supplemental index may contain less popular, unusual,specialist materialSupplemental index comes into play when Google thinks yoursearch has returned too few resultsUsing advanced search commands and Verbatim seems totrigger a search in the supplemental index03/03/13 www.rba.co.uk 9
  • 10. Five things you need to know about Google4. Google changes its algorithms several hundred times ayearSome changes are minor and barely noticeable, others are moresignificant e.g. dropping search termsHow Google makes improvements to its search algorithm -YouTube http://youtu.be/J5RZOU6vK4Q03/03/13 www.rba.co.uk 10
  • 11. Five things you need to know about Google5. We are all Google’s lab ratsGoogle constantly tests changes on users in “live experiments”Just Testing: Google Users May See Up To A DozenExperiments :http://searchengineland.com/just-testing-google-searchers-may-see-upMostly minor effects on search but sometimes totally bizarreresults – Google decides that coots are really lions http://www.rba.co.uk/wordpress/2011/02/12/google-decides-that-coots- – Update on coots vs. lions http://www.rba.co.uk/wordpress/2011/02/21/update-on-coots-vs-lions/03/03/13 www.rba.co.uk 11
  • 12. What I see on my screen will not be what you see on your screen, will not be what your colleagues see on theirs, will not be what your users see. Google Scholar more consistent?03/03/13 www.rba.co.uk 12
  • 13. Google commandsSpeech marks around phrases or titles of articles “Geochemical evaluation of flowback brine from Marcellus gas wells”Note: if Google finds no documents containing your phrase it willignore the speech marksVerbatim – runs your search exactly as you have typed itSearch tools, All results, Verbatim (see earlier slide)intext: before your term – term must be present and exactly asyou have typed it UK public transport intext:biodiesel statistics03/03/13 www.rba.co.uk 13
  • 14. Google commandsThink file format – PDF for research documents, government reports, industry papers – ppt or pptx for presentations, tracking down an expert on a topic – xls or xlsx for spreadsheets containing dataUse the advanced search screen or the filetype: command zeolites environmental remediation filetype:pdf nasa dark energy dark matter filetype:ppt nasa dark energy dark matter filetype:pptx annual average global temperature 1960..2012 filetype:xls annual average global temperature 1960..2012 filetype:xlsx03/03/13 www.rba.co.uk 14
  • 15. Google commandsSite searchFor searching single large sites, or groups of sites by type forexample academic, governmentUse advanced search screen or site: command marcellus gas wells hydraulic fracturing site:psu.edu marcellus gas wells hydraulic fracturing site:edu shale gas hydraulic fracturing earthquakes site:ac.uk shale gas hydraulic fracturing site:gov.uk03/03/13 www.rba.co.uk 15
  • 16. Google commandsNumeric range searchAnything to do with numbers and quantities: years,temperatures, weights, distances, prices etcUse the advanced search screen or type in your two numbersseparated by two full stops as part of your search world oil demand forecasts 2015..2030 world oil demand forecasts 80..100 mb/d 2015..2030 toblerone 1..5 kg03/03/13 www.rba.co.uk 16
  • 17. Google commandsWords in the title – can be single words or phrasesEnsures subject is the main focus of the articleUse advanced search screen or intitle: intitle:”diabetic retinopathy”Words in the URL – can be single words or phrasesUse advanced search screen or inurl: inurl:”diabetic retinopathy”03/03/13 www.rba.co.uk 17
  • 18. Google search optionsDateRestrict your results to information that has been publishedwithin the last hour, day, week, month, year or your own daterangeSearch tools, Any time and select an option03/03/13 www.rba.co.uk 18
  • 19. Google search optionsReading levelChanges the type of material that is returnedRun the search and from the menu above the results selectSearch tools, All results and then Reading level03/03/13 www.rba.co.uk 19
  • 20. Google search options03/03/13 www.rba.co.uk 20
  • 21. Google Scholarhttp://scholar.google.com/“Google Scholar provides a simple way to broadly search for scholarlyliterature. From one place, you can search across many disciplines andsources: articles, theses, books, abstracts and court opinions, fromacademic publishers, professional societies, online repositories,universities and other web sites. Google Scholar helps you findrelevant work across the world of scholarly research”. • Search all scholarly literature from one convenient place • Explore related works, citations, authors, and publications • Locate the complete document through your library or on the web • Keep up with recent developments in any area of research • Check whos citing your publications, create a public author profile03/03/13 www.rba.co.uk 21
  • 22. Google ScholarDoes not cover all key journals in all subjects – no source listTop publications for subjects and languages under Metrics linkon home page orhttp://scholar.google.co.uk/citations?view_op=top_venues&hl=enScholar indexes the full text but you may have to pay to view thewhole articleGroups different versions of an article together03/03/13 www.rba.co.uk 22
  • 23. Google ScholarIncludes open access material, pre-prints, institutionalrepositories (but not necessarily author self archivedrepositories)Includes material that is NOT peer reviewed but is structured andlooks like an academic article (title in large font, authors,affiliations, abstract, keywords, citations)Pre-prints and IR copies may differ from final published version –charts and images may be redacted because of copyrightrestrictions03/03/13 www.rba.co.uk 23
  • 24. Google ScholarDoes NOT use the publishers’ metadataDate and author search looks in the area of the document wherethose elements are usually foundPage numbers, part of an address, data item may be mistakenfor publication yearSometimes gets the author wrong03/03/13 www.rba.co.uk 24
  • 25. Communicating with postgraduate research students: somethemes from the library literaturehttp://www.chuukaku.com/blog/2013/01/communication-with-pgr.htm 03/03/13 www.rba.co.uk 25
  • 26. Jacsó, Péter. “Metadata mega mess in Google Scholar.” OnlineInformation Review 34.1 (2010): 175-191.Jacsó, Péter. Newswire Analysis: Google Scholar’s Ghost Authors,Lost Authors, and Other Problems [Online] 24 September 2009[Accessed 4 February 2013.]http://www.libraryjournal.com/article/CA6698580.htmlJacsó, Péter. “Google Scholar Author Citation Tracker: is it too little, toolate? “Online Information Review 36.1 (2012): 126-141.Jacsó, Péter. “Using Google Scholar for journal impact factors and theh-index in nationwide publishing assessments in academia–sirensongs and air-raid sirens.” Online Information Review 36.3 (2012): 462-478.Jacso – Savvy Searching Columns, Online Information Reviewhttp://www2.hawaii.edu/~jacso/savvy-mcb.htm [Accessed 4 February2013]03/03/13 www.rba.co.uk 26
  • 27. Gray, Jerry E., et al. Scholarish: Google Scholar and its Value to theSciences. Issues in Science and Technology Librarianship. [Online]Summer 2012. [Cited: 11 February 2013.]http://www.istl.org/12-summer/article1.htmlHamilton, Michelle C, Janz, Margaret M and Hauser, Alexandra. Canlibrarians trust resources found on Google Scholar? Yes… and no. Impactof Social Sciences: Maximizing the impact of academic research . [Online]17 September 2012. [Cited: 10 January 2013.]http://blogs.lse.ac.uk/impactofsocialsciences/2012/09/17/can-science-students-anKramer, Bianca and Sieverts, Eric. Beyond coverage #ili2012. Slideshare.[Online] 27 October 2012. [Cited: 10 January 2013.]http://www.slideshare.net/bmkramer/beyond-coverage-ili2012HLWIKI International. Google scholar bibliography. UBC HealthLib Wiki - AKnowledge-Base for Health Librarians. [Online] 1 February 2013. [Cited: 11February 2013.]http://hlwiki.slais.ubc.ca/index.php/Google_scholar_bibliography03/03/13 www.rba.co.uk 27
  • 28. Google Scholar advanced search commandsUse advanced search screen or commands as follows:+ sign before a search term to force an exact match, for example +norne“....” around phrases for example “environmental remediation”intitle: to search for a single word in the title, for example intitle:zeolitesenvironmental remediationallintitle: to search for all of your terms in the title, for exampleallintitle:zeolites environmental remediationauthor: to search on an author’s name, for examplezeolites environmental remediation author:rhodessite: to limit your search to specific institution for examplemarcellus shale site:psu.eduCommands can be combined for a precise search, for exampleauthor:wolford site:psu.edu allintitle:marcellus shale03/03/13 www.rba.co.uk 28
  • 29. h-Indexh-index developed in 2005 by Jorge Hirsch, University of California inSan DiegoAttempts to quantify productivity and apparent scientific impact of ascientist. “A scientist has index h if h of his/her Np papers have at least h citations each, and the other (Np − h) papers have no more than h citations each”.For example, an h-index of 20 means that the researcher has 20papers each of which has been cited 20 or more timesCalculated by Scopus, WoS, Google Scholar, Microsoft AcademicSearch (?) but only for those papers within the database03/03/13 www.rba.co.uk 29
  • 30. g-Index g-index - distribution of citations received by a given researchers publications Devised by Leo Egghe in 2006 “Given a set of articles ranked in decreasing order of the number of citations that they received, the g-index is the (unique) largest number such that the top g articles received (together) at least g2 citations.” g-index - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/G-index03/03/13 www.rba.co.uk 30
  • 31. Other indices i10 Index i10-index is the number of publications with at least 10 citations e-Index PLOS ONE: The e-Index, Complementing the h-Index for Excess Citations http://www.plosone.org/article/info:doi%2F10.1371%2Fjournal.pone.003/03/13 www.rba.co.uk 31
  • 32. Google Scholar h-indexAuthor creates a profile and claims papers03/03/13 www.rba.co.uk 32
  • 33. Google Scholar h-index ScholarHIndexCalculator - mWiki https://www.mat.unical.it/ianni/wiki/ScholarHIndexCalculator Add-on for Chrome (development of new features stopped for Firefox)03/03/13 www.rba.co.uk 33
  • 34. Google Scholar - Scholarometer Scholarometer: Browser Extension and Web Service for Academic Impact Analysis http://scholarometer.indiana.edu/ Firefox and Chrome03/03/13 www.rba.co.uk 34
  • 35. Google Scholar - Scholarometer03/03/13 www.rba.co.uk 35
  • 36. Google Scholar – Publish or PerishPublish or Perish - Anne-Wil Harzing http://www.harzing.com/pop.htmDesktop application 03/03/13 www.rba.co.uk 36
  • 37. Microsoft Academic Searchhttp://academic.research.microsoft.com/Journal articles, pre-prints, post-prints, conference proceedings,reports and white papersFree to use but the full text of some papers can only be viewedon payment of a fee to the original journal publisherAutomatically computes author g and h indexAuthor may have several different profiles and articles may beassigned to wrong author03/03/13 www.rba.co.uk 37
  • 38. Microsoft Academic Search Note: G and H index have now disappeared – uncertain as to whether they’ll return03/03/13 www.rba.co.uk 38
  • 39. Microsoft Academic Search03/03/13 www.rba.co.uk 39
  • 40. Institutional repositoriesBASE - Bielefeld Academic Search Engine http://www.base-search.net/CORE (COnnecting Repositories) http://core.kmi.open.ac.uk/searchDART-Europe E-theses Portalhttp://www.dart-europe.eu/basic-search.phpInstitutional Repository Search (IRS) http://irs.mimas.ac.uk/Open DOAR http://opendoar.org/RIAN - Pathways to Irish Research http://rian.ieROAR - Registry of Open Access Repositories http://roar.eprints.org/03/03/13 www.rba.co.uk 40
  • 41. Specialist search tools for research informationArXiv http://arxiv.org/BioMed Central http://www.biomedcentral.com/Chemistry Central http://www.chemistrycentral.com/ChemSpider http://www.chemspider.com/Deep Web Technologies Mednar http://mednar.com/ Science.gov http://www.science.gov/ Science Research http://scienceresearch.com/ WorldWideScience http://worldwidescience.org/03/03/13 www.rba.co.uk 41
  • 42. Specialist search tools for research informationEurope PubMed Central http://europepmc.org/Mendeley http://www.mendeley.com/Open Biology http://rsob.royalsocietypublishing.org/PhilPapers: Online Research in Philosophy http://philpapers.org/PubMed Central http://www.ncbi.nlm.nih.gov/pmc/Scirus http://www.scirus.com/TechXtra http://www.techxtra.ac.uk/03/03/13 www.rba.co.uk 42