Google Scholar Citations Marianne van der Heijden 21-3-2013 Citation Counting: ResearcherID vs Google Scholar Citations

NIOO RESEARCHERS WITH A PROFILE 52 Researcher ID´s 21 Google Citation Profiles Mark your affiliation: Netherlands Institute of Ecology (NIOO-KNAW)

Researcher Profile Publication List Citation metrics SHOW THE OUTSIDE WORLD YOUR PUBLICATIONS SHOW EVERYONE THE IMPACT = I.E. CITATION RATE OF THESE PUBLICATONS

Example: Louise Vet Researcher|ID # pub: 169 # cit: 6232 H-index: 44 Google Scholar Citation # pub: 253 # cit: 8843 H-index : 49

How to make your own profile Researcher-ID Google Scholar Citation Go to Web of Science Login to your personal account Search and select your own publications Click the I wrote these publications button Update regularly (My publications in EndnoteWeb) Got to Google scholar Login to your Google account Click my Citations Search and select your publications Add them to your profile and make it public Updates automatically, check from time to time

Usefull • Evaluation of academic reputation for funders / employers • Presenting your publication list for other scientists to read/cite your papers • Personal Scientific Branding for media /public/other science disciplines to find you as an expert • Web of Science / Google Scholar to improve their database

Differences Database of origin Web of Science Google Scholar Incorporated kind of publication & source Selected Scientific only from Scientific journals Scientific / Congress / Professional / websites/ undetermined Errors and retraceability Possible citation analysis Sometimes missing metadata and source

Database & collection ‘It is the collection from the database that determines your citation metrics’ • the database is to register your publication • the database is to register the publication that cites yours • the citation report should contain the relevant publications • the citation report should contain the relevant filters (years)

Notes • “Combining citations from a largely unregulated space with a tightly regulated space is not just problematic, it corrupts the citation as an evaluative metric.” http://scholarlykitchen.sspnet.org/2012/12/12/gaming-google-scholar-citations-made-simple-and-easy/ • “This is not about competition, this is about providing an open platform for academic research,“ http://www.nature.com/news/2011/110803/full/476018a.html • “However, the h-index will vary considerably depending on a person's number of credited publications and the length of time they've been active” http://www.lib.utexas.edu/chem/info/cited.html

Choose between RID - GSC • At NIOO we go for purely scientific = RID for official reports, Web of Science is leading • At NIOO we care for our public image, therefore we encourage GSC as outreach tool

Citation reports for others “ResearcherID and Google Scholar Citations can only be found if the author has activated them and made them public” • ResearcherID’s database is Web of Science, only to be searched with subscription • Google Scholar Citations’ database is Google Scholar and gives no metrics for other authors except via Publish or Perish software tool

Other citation reports Payed services: • Scifinder Scholar (CAS-chemical), • Scopus (Elsevier - general) Free services: • Microsoft Academic Search http://academic.research.microsoft.com • Altmetrics (non scientific), tools like total-impact, sciencecard, readmeter http://altmetrics.org/tools/

Conclusion (1) ‘Bottom-line: Web of Science has the cleanest database, but is missing big chunks of scientific literature.  Google Scholar is the most complete, but has not merged slightly erroneous citations, and is cluttered with bogus information.’ http://gasstationwithoutpumps.wordpress.com/2010/06/30/google-scholar-vs-web-of-science/

Conclusion (2) ‘Overall, I trust Web of Science more, which is why I have been using it to compile citations to the 2003 NAR paper. However, I use Google Scholar more frequently for quick reference simply because it is free and easy to access.’ http://xiang-jun.blogspot.nl/2011/07/tracking-3dna-citations-google-scholar.html

Literature • Libguides University Utrecht : researcher profiles http://libguides.library.uu.nl/content.php?pid=310987&sid=3058269 • Google Scholar compared to Web of Science: a literature review / Susanne Mikki. https://noril.uib.no/index.php/noril/article/viewFile/10/6 • Publish or Perish ; software and papers / Anne-Wil Harzing http://www.harzing.com/papers.htm

Literature (further reading) • Author identifier and altmetrics / Maurice Vanderfeesten http://www.slideshare.net/maurice.vanderfeesten/author-id-and-altmetrics • Manipulating Google Scholar Citations and Google Scholar Metrics: simple, easy and tempting/ E. Delgado Lopez-Cozar e.a. http://arxiv.org/abs/1212.0638 * Mr RI (Research Impact): Limititation to bibliometrics / Ray O’Neil http://www.youtube.com/watch?v=1OLvh1VMgN8