Do we grasp alll the data from repositories? How clean is the data (how clean repo managers present data), identifiers are they available or not (DOIs) We don’t have a profile for CORE users I4OC
CORE recommender (add screenshots)
CORE Recommender: a plug in suggesting open access content
a plug in suggesting open access content
Nancy Pontika, Lucas Anastasiou,
Aristotelis Charalampous, Matteo Cancellieri,
Samuel Pearce and Petr Knoth
Knowledge Media institute,
The Open University
Discoverability of content in repositories
• Criticism of repositories (Salo, 2008; Konkiel, 2012; Acharya,
“[The institutional repository] is like a roach motel. Data goes in,
but it doesn’t come out.” (Salo, 2008)
By integrating recommender into repositories, we can increase
the number of incoming links to relevant resources, thereby
increasing their accessibility.
Why is it needed?
Recommendations as a service
CORE provides a non-personalised recommendation system
for articles from across the global network of
• 8 million full
• 77 million
What effect can it have?
• Increase accessibility
Click-Through Rate (CTR)
• Twice as often people
access resources on CORE
via its recommender
system than via search.
CORE Recommender installations (and more to come…)
How does the CORE recommender work?
• Currently an article-article recommender system
• Preprocessing prior to the recommendations:
enrichment with e.g. identifiers. document type and
• Similarity measure/ranking function
• Post-filtering using record quality
• Feedback (crowdsourcing a black list)
What the CORE recommender is…
• Use of full text rather than just abstracts
• Ensure open access availability of recommended
• Free service
• Integration with repositories and availability over API
Recommender paper: https://arxiv.org/abs/1705.00578
What the CORE recommender is not…
What the CORE recommender is not!
• It is not always right! But which recommendation
What the CORE recommender does not do?
• Compare the “quality” of the recommended articles
with the “quality” of the initial paper