Here are some Frequently Asked Questions (FAQ) about the Open Access Policy at NTU.

1.​​ What kinds of publications could I submit to DR-NTU as part of the NTU’s Open Access Policy?

You should submit the following publications into DR-NTU as part of the OA Policy:
  • Conference papers
  • Journal articles
2. Can I deposit my conference presentation slides, posters into DR_NTU?

According to NTU’s Open Access Policy, only journal articles, conference papers and theses can be deposited in the DR-NTU.
​3. Which version of papers do I submit to DR-NTU as part of the OA Policy?

Different publishers may allow different versions of the paper to be archived: some allow publication version, some allow pre-print (ie pre-refereeing) and post-print (ie final draft post-refereeing), some allow either post-print or pre-print only, and some do not formally support archiving at all.

According to
RoMEO statistics, about 41% of academic publishers allow pre-print and post-print version to be archived for open access, thus, you should submit your final manuscript after peer-review, namely the accepted version which incorporates referee’s comments.

How do I know which version of my article the publisher allow me to deposit?

Please check the website, Sherpa Romeo, to ensure that the publisher of your article allows self-archiving of the paper in PDF.

Sherpa Romeo is a site that lists publisher’s information on self-archiving rights.

When in doubt or when information is not available, always submit the accepted version to DR-NTU.


How do I identify different versions of my paper?

Published version:
Final version of the publication produced by the publisher. The layout of published version is formatted by the publisher, with the volume, issue, page number and publisher’s logo displayed.

Accepted version: Author’s final manuscript of the publication after peer review, which is submitted to the publisher for publication. Also known as the Post-print version. The layout of accepted version is unformatted, with default page numbers but usually without publisher’s logo.

Pre-print version: Author’s complete manuscript before peer review.

Post-print version: The version of the publication after peer-review, with revisions having been made. This is the final version of the publication before it is sent off the journal for publication. Also known as the Post-Print.

Before you submit your paper to DR-NTU, please check your publisher’s website about their self-archiving policy to ensure that they allow you to do self-archiving and you have submitted a proper version.


If the publisher does not support self-archival policies, can I still submit my publications to DR-NTU?

Yes. The Library will then publish only the bibliographic details and abstract of your publications on DR-NTU.


Can I deposit my conference papers into DR-NTU before being published?

To ensure that we do not infringe publishers’ copyrights, authors are strongly encouraged to submit their publications to DR-NTU after the papers have been published.


My thesis has confidential information; may I ask for an exemption?

According to NTU’s Open Access Policy, all PhD and Masters Degree (by research only) students are required to submit the complete full-text digital version of their theses to DR-NTU for open access.

If your thesis contains data or information, such as pending patent application or journal/conference publication, you can set an embargo period when uploading the PDF. During the embargo period, only the title and abstract can be viewed. The full text will only be released after the embargo date is expired. Normally, an embargo period should be between 6 months and 24 months. In special cases, a maximum of 5 years may be allowed with sufficient reasons.


Why is the full-text of my paper not available in DR-NTU (open repository) even after I have successfully submitted it?

Even though you have successfully submitted the document into DR-NTU, the Library will still need to process and verify the document before it is made available on DR-NTU (open repository). Please note that the Library complies with the respective publisher’s self-archiving policy, for example, some publishers may require an embargo period to their publications before making them open access. As such, should the publisher of your paper request an embargo setting, the PDF version of your paper will be released for public viewing only after the embargo period has expired. Publications that are affected by publishers’ embargo instructions will have limited information available for public viewing during the embargo period.


I did not submit my paper to DR-NTU, why is my paper available in DR-NTU?

This is because the library has done a librarian-mediated submission on behalf of NTU’s authors to comply with the OA policy of NTU. Librarians download NTU paper records from Scopus and Web of Science regularly and deposit the proper version of these papers to DR-NTU according to the publisher’s self-archiving policy. So, please do a title search for your papers in DR-NTU before you submit to avoid duplicates.

Please contact us if you have further questions or need any clarifications.


I have some papers published before I joined NTU, can I deposit these papers into DR-NTU?

Currently DR-NTU aims to capture, store and preserve the scholarly output of Nanyang Technological University (NTU). Authors are strongly encouraged to submit their publications to their own universities or institutional repositories when these papers were published.

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