Dear Heather, I think the count on DOAJ is pretty correct if the Publisher delivers metadata correctly. It can always happen that a Publishers re-submits the one or the other paper if the first submission was erroneous. I found in the past that it is not so easy to delete an entry from DOAJ (I had to ask the staff members). So actually the article count on DOAJ, including those resubmissions, is usually lsightly higher than on the Publisher website.
Examples: International Journal of Molecular Sciences (DOAJ versus --> Publisher website) 2014 (1469) --> 1435, see: http://mdpi.com/search?journal=ijms&year_from=2014&year_to=2014 etc. 2013 (1373) --> 1367 2012 (1124) --> 1082 2011 (632) --> 631 2010 (339) --> 339 etc. International Journal of Environmental Research and Public Health (DOAJ versus --> Publisher website) 2014 (786) --> 779, see: http://mdpi.com/search?journal=ijerph&year_from=2014&year_to=2014 etc. 2013 (454) --> 454 2012 (307) --> 306 2011 (277) --> 277 2010 (268) --> 267 etc. About the "World Journal of Gastroenterology" mentioned in your blog post, I have yet another article count based on CrossRef doi deposits. You can access its article number stats based on CrossRef doi deposits here (the CrossRef-based count is quite different from the DOAJ count, yet seems closer to DOAJ than the number you report based on the Publisher website): http://sciforum.net/statistics/journal/articles/13016 Journal: World Journal of Gastroenterology Partly open access Current Publisher: Baishideng Publishing Group Co (doi prefix: 10.3748), 2004-2015 Year: :2004-2015 ISSN / EISSN: 10079327 / - Total articles: ≅8'184 Indexing: SCOPUS - (1998-) PUBMED - (2001-) MEDLINE - (2001-) MEDICUS - (2001-) PMC SCIE EBSCO Archiving: SHERPA/ROMEO (gray) Please also note that one of the major open access publishers, namely PLoS, does not deliver article-level metadata to DOAJ since quite a while. PLoS published around 36K and 35K articles in 2013 and 2014 respectively. Probably the view here is more realistic (yet, it does only count OA papers that have a doi number registered and deposited to CrossRef): http://sciforum.net/statistics/open-access-papers-published-per-year Best regards, Dietrich On 06.05.2015 22:38, Heather Morrison wrote: > In the course of looking at DOAJ content number correlations, I've > come across what looks like quite a bit of disparity between the > actual article numbers of journals per year and the identification of > this information in DOAJ. It appears that recent changes in metadata > harvesting at DOAJ have increased the disparity. Checking is > recommended. Procedures and details are posted here: > http://sustainingknowledgecommons.org/2015/05/06/tech-tip-for-doaj-journals-contributing-article-level-metadata/ > > > > This message has only been posted to the GOAL list. Please share > with any other venues likely to be monitored by OA journal > publishers. > > best, > _______________________________________________ GOAL mailing list [email protected] http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal
