Full-text is really important to our users and is one of the main benefits of Trip Pro. Historically, we have checked for full-text at the time of indexing only (indexing is the the process of taking the uploaded document and making it available to a user to search).

One realisation is that many documents are restricted when they are initially released and then become free full-text after 6-24 months. So, if we only check for full-text close to the time of release we miss those that subsequently turn open access.

So, we’ve introduced a re-sampling process that will periodically check documents in Trip to see if they now have free full-text access. This has been a huge success with a huge number of new full-texts identified. We can even quantity this:

  • We have 4,244,009 articles with DOIs.
  • We have 3,761,834 that link to full-text.
  • Overall, 88.63% of articles with a DOI (typically PubMed articles) link to full-text.

This is spectacular!