SwePub is a bibliographic search service, harvesting and offering unified searching of aggregated scientific publication metadata from institutional repositories (IR:s) in Swedish universities and higher education institutions. SwePub has been developed by the National Library of Sweden. Last year, in response to a government assignment, SwePub released a technical preview of an entirely new service – SwePub Analysis – aimed at researchers and analysts working in the areas of bibliometrics and scientometrics. SwePub Analysis is a bibliometric service enabling users to obtain enriched and validated scientific publication metadata to base their research and analyses on. SwePub Analysis is built on linked data technologies and, together with data from other research information resources, allows users to query the database to obtain new knowledge concerning research information that would otherwise be difficult to obtain, e.g. richer Open Access information, deeper knowledge of scientific collaboration etcetera. For the service to be able to provide high quality data, and for users to understand it’s limitations, much effort has been spent on analysing and validating harvested metadata. This enables the service to present data providers with visualised, rich data on which elements are missing or do not meet format specifications and standards. Hopefully this approach will give IR:s incentives to improve data quality. This presentation outlines the present state of the service and planned development with emphasis on Swepub utilisation of linked data technologies and external data for validation and enrichment. It also contains insights on current developments in improving metadata markup of licenses and open access in order to improve Swedish Open Access statistics for the purposes of reporting.

1. Swepub Analysis
Offering High Quality Institutional Repository Publication Metadata
Using Linked Data Technologies
Theodor Tolstoy, Developer, National library of Sweden

2. Swepub Search
• Developed by the National Library of
Sweden in 2009
• Aggregates data from Swedish
universities and higher education
institutions
• Offers various search and bibliographic
data services for academic publications
swepub.kb.se

3. Swepub Analysis
Government assignment to further
develop Swepub, making it possible to
offer high quality publication metadata
aimed at researchers and analysts
working in the areas of bibliometrics and
scientometrics.
First public beta release in 2015.
bibliometri.swepub.kb.se

4. The journey of data in Swepub
<MODS
/>
Swepub
• Harvesting
• Triplification
• Data validation
• Deduplication
• Enrichment
– OA-validation
– Publication Channel
enrichment
DOAJ
ROADExternal data sources
Quality issues
Triplification

5. Encouraging data quality improvement

6. Getting data out
.csv
SPARQL
Raw
Bibliometric

7. Getting data out
.csv
SPARQL
Raw
Bibliometric

8. SPARQL alternatives
Spotfire- BI ToolWeb interface

9. Example of enrichment - Open Access in Swepub
Why enrichment?
• Getting a better picture of OA
publishing
• Catching up on embargo
• Enabling different definitions
• Verifying claimed OA publishing
Green OA = Full text link to free version
(Apx. 50% are linking to own IR)

10. Directory of Open Access Journals (DOAJ)
Contains 8 900 journals
Strict definitions and criterias for inclusion
Data on copyright licence, APC prices etc
Gold OA = If a publication is published in a journal in DOAJ

11. Connecting the graphs

12. Increased Coverage

13. Overlap

14. DOAJ Reapplication process
In 2014, older journals had to reapply for
inclusion in DOAJ
2 year window for reapplication
2 850 journals removed May 9th 2016
Publications before 2016 in removed
journals are still considered Gold OA
So far 56 publications are excluded.
300 publications per year in excluded
journals

15. ROAD - Directory of Open Access scholarly Resources
• Currently under consideration
• Provided by the ISSN International Centre
• ISSN records that are Open Access
• Criterias differ from DOAJ
• RDF Data available!
• Increases OA coverage in Swepub

16. Directory of Open Access Books - DOAB
4700 + Open Access books
96 Swepub publications matching books in DOAB.

17. Hybrid publications - Data from the publishers
Trial on APC data from Wiley
•Easier to obtain than to track down
invoices,
•Only list prices, no actual costs
•Poor, fragmented bibliographic data
•More OA coverage in Swepub
•Can be used for approximations on total
costs and signs of double dipping

18. Conclutions & further development
• Consuming and querying Linked Open Data is very powerful.
The hard part is exposing Linked Open Data the right way
– Swepub will be working on exposing its data and mapping it to established vocabularies.
•Invloving external sources early in the process is beneficial for both analysis and quality.
– Constantly looking for data sources that could help validate data or enrich the database.

19. Questions!
@tedde, @swepub
bibliometri.swepub.kb.se