Slides for the webinar: Access the world’s research outputs through the CORE API, 13th January 2022. Link to the webinar video: https://youtu.be/acRLJNpq4W4 In this webinar, we present our new CORE APIv3. Presenters Petr Knoth and Matteo Cancellieri walk you through the new features. At a glance the new APIv3 offers: - An extended model of the CORE resources to link different versions of a paper. ​ - Support for medium-size datasets collection.​ - Improved analytical tools​. - User management made easier​. - Better documentation. - A gallery to kick start your journey with the API. The webinar contains also a quick demo showing the API features and tries to reply to the question "Did research stop during COVID?"

1. Access the world’s research outputs
through the CORE API
Petr Knoth, Matteo Cancellieri, Knowledge Media institute, The Open University
https://core.ac.uk
https://core.ac.uk/services/api
https://bit.ly/core-apiv3
@oacore

2. • What can you do with the CORE API?
• Lessons learned from v2 and new features in v3
• Live tutorial: Did research stop during COVID?
Outline
Questions? https://bit.ly/core-apiv3

3. In doing so, we:
● enrich scholarly data using state-of-the-art text and data
mining technologies to aid discoverability,
● enable others to develop new tools and use cases on top
of the CORE platform,
● support the network of open access repositories and
journals with innovative technical, solutions and,
● facilitate a scalable, cost-effective route for the delivery of
open scholarship.
CORE’s mission
CORE’s mission is to aggregate all open access research worldwide and deliver
unrestricted access for all.
Questions? https://bit.ly/core-apiv3

4. ~97 million
Data providers
10,372
28,468,748 > 90
Countries
250
Metadata records
218,808,331
Full texts hosted
directly by CORE
Languages
Free to read links to full
text papers
Questions? https://bit.ly/core-apiv3

5. CORE services
Content discovery Raw data services Managing content
Discovery
Recommender
API
Dataset
FastSync
Repository Dashboard
Repository Edition
Search
Questions? https://bit.ly/core-apiv3

6. ● An extended model of the CORE resources to
link different versions of a paper.
● Support for medium-size datasets collection
● Improved analytical tools
● User management made easier
● Better documentation
● A gallery to kick start your journey with the API
What's new on the CORE API
Questions? https://bit.ly/core-apiv3

7. 🖋 Documentation in Swagger
🖋 PHP + Symfony implementation
🚀 Elasticsearch
API clients
•Java https://github.com/oacore/oacore4j
•Python https://github.com/oacore/pyoacore
•R https://github.com/ropensci/rcoreoa
CORE API: where are we?
> 2,500 registered users 252 active users
(in the last two months )
Questions? https://bit.ly/core-apiv3

8. Works
A deduplicated and polished item, it is made with the best metadata we can use from multiple articles
from different sources, it includes enrichments.
Article (old name) /Output (new name)
It is data coming directly from the data providers. It mostly comes from OAI-PMH but there also other
different data providers. The data is uniform so all the different data providers lead to a single metadata
format.
Data provider
It contains repositories (institutional
and disciplinary), preprint servers, journals and
publishers.
Journal
This dataset contains all journal titles included in
the CORE collection.
How CORE sees the world
1...n versions
contains contains
Questions? https://bit.ly/core-apiv3

9. Improved search queries
(
(
"Neural networks"
AND
yearPublished<=2018
)
OR
(
title:"deep learning"
AND yearPublished>2019
)
)
AND
_exists_:doi
+ better sorting
+ better filtering
Questions? https://bit.ly/core-apiv3

10. Large dataset access
 The API now support querying
for medium size datasets
(1,000-100,000 records)
through the scroll parameter.
 For large datasets (>100,000),
consider the CORE dataset
Questions? https://bit.ly/core-apiv3

11. Better analytical tools (coming soon) CORE
Analytics
Meaningful statistics for all
the entities in CORE
Search aggregation to help you orientate
while searching
Questions? https://bit.ly/core-apiv3

12. User management
CORE
communities!
Questions? https://bit.ly/core-apiv3

13. Great
docs
Easy to start with
API clients coming soon!
Examples
Gallery
Free to
use
Free to
register
Questions? https://bit.ly/core-apiv3

14. Roadmap
APIv3 is in
production
Sunset period for
APIv2 (in Q2
2022)
Questions? https://bit.ly/core-apiv3

15. Feedback
Please cite CORE https://core.ac.uk/about/research-outputs
Show us how you are using the API
Let us know what do you think
Questions? https://bit.ly/core-apiv3

16. Thank you!
Questions?
https://bit.ly/core-apiv3

17. Demo time!
beware of the demo demon

18. Thank you!
Questions?
https://bit.ly/core-apiv3