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January 24, 2008

Estimating Duplication in Scholarly Journals

Declan Butler over at news@nature:News20085201

As many as 200,000 of the 17 million articles in the Medline database might be duplicates, either plagiarized or republished by the same author in different journals, according to a commentary published in Nature today1.

Mounir Errami and Harold ‘Skip’ Garner at the The University of Texas Southwestern Medical Center in Dallas, used text-matching software to look for duplicate or highly-similar abstracts in more than 62,000 randomly selected Medline abstracts published since 1995. They hit on 421 possible duplicates.

After manual inspection they estimated that 0.04% of the 62,000 articles might be plagiarized, and 1.35% duplicates with the same author. These percentages are lower than those calculated by similar previous studies. As yet, the researchers aren't sure why that is.

Posted by Robin Varghese at 09:26 AM | Permalink

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