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Introducing Crossref Similarity Check

Vanessa Fairhurst and Susan Collins present an introduction to Crossref's Similarity Check service. The presentation covers what is meant by plagiarism, how to use Turnitin's iThenticate tool, and how to participate in the Crossref service with information about fees and where to find further help.

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Introducing Crossref Similarity Check

  1. 1. Introducing Crossref Similarity Check
  2. 2. Who is already participating in Similarity Check?
  3. 3. Our Similarity Check service offers publishers with a way to actively engage in efforts to prevent plagiarism. Members are provided with access to Turnitin’s powerful text comparison tool, iThenticate. This allows them to compare their own documents against the largest comparison database of scientific, technical and medical content in the world. Similarity Check members contribute their own published content into iThenticate’s database of full-text literature. Similarity Check
  4. 4. • Turnitin’s plagiarism detection software • Text-based screening • Contains content indexed from over 1 billion web pages, 57 million items from Crossref members, and a further 105 million items from other content partners such as Pearson, Cengage, EBSCOHost etc. What is iThenticate?
  5. 5. How the service works • Upload a document to iThenticate • A similarity report is produced • Compare side-by-side • Editor makes a decision about whether the similarity detected is legitimate or if further investigation is required • When members publish new content, they provide a link to their full-text which Turnitin use to index the item and add it into their database
  6. 6. Who’s using Similarity Check? Over 1,700 participating Crossref members Average 298,962 manuscripts screened every month this year Increase in usage from publishers in Japan, Brazil, South Korea and Turkey Publishers are putting more time and effort into their plagiarism policies • resources (staff and time) • cost • workflow • education • follow-up action
  7. 7. Doc-to-doc comparison • Doc-to-doc comparison allows users to upload one primary document and compare it against up to five other documents.
  8. 8. What issues are publishers looking for • Poor, missing, or incomplete references (can be fixed) • Self-plagiarism/text recycling (can be fixed) • Unattributed use of parts of another person’s work • Submitting another person’s work as your own • Is the author attempting to mislead/misrepresent?
  9. 9. How to join Are you eligible?
  10. 10. X Abstract only/landing pages won’t work X PDF Readers won’t work ★ PDF downloads are the best What are full-text URLs?
  11. 11. What if my articles are paywalled? • It’s okay if your articles are behind a paywall, we still need full-text URLs • Whitelisting Turnitin’s IP • Only Turnitin will have access to the full-text the-turnitin-ip-address/
  12. 12. How much does it cost? • Annual administrative fee equal to 20% of your Crossref membership fee, paid to Crossref along with your annual membership fee. • Each document run through Similarity Check is charged at a per-document-checking fee. There is a separate invoice for Similarity Check document checking fees. • If you work with a sponsor, they’ll receive the invoices for your use of the service. • Invoices for the per document checking fees Similarity Check service will be sent, from Crossref, in January (for the previous year). You can check how many documents you’ve checked in the Reports section in iThenticate.
  13. 13. Other FAQs • If you’re a member who works with a sponsor, and you want to change to work with another sponsor, the new sponsor needs to be using the service for you to continue to have access to it. • iThenticate checks are integrated into the main manuscript submission systems (ScholarOne, Editorial Manager, eJournal Press).
  14. 14. https://community.crossref.or g
  15. 15. Need more information? Forum: Documentation: Email us: or
  16. 16. Thank you!