http://www.sherpa.ac.uk/
OpenDOAR and ROAR RSP Services Day, Nottingham, 23rd Apr.2008
Peter Millington
SHERPA Technical Development Officer
SHERPA, University of Nottingham
http://www.sherpa.ac.uk/
Outline
•Overview of open access repository lists
–What are they used for?
•Open access repositories
–The context
•OpenDOAR’s facilities
•ROAR’s facilities
•Searching the content of OA repositories
•Mashing up OpenDOAR and ROAR
http://www.sherpa.ac.uk/
OpenDOAR & ROAR, etc.
•OpenDOAR– 1128 records
–Directory of Open Access Repositories
–SHERPA, University of Nottingham
•ROAR– 1041 records
–Registry of Open Access Repositories
–EPrints.org, University of Southampton
•Other OA Repository lists
–OAIster– 947 records
–OAI Registered Data Providers– 794 records
•DOAJ - Directory of Open Access Journals
http://www.sherpa.ac.uk/
Open Access Repositories Worldwide
http://www.sherpa.ac.uk/
Growth of OpenDOAR Database
http://www.sherpa.ac.uk/
Growth of Repository Content
http://www.sherpa.ac.uk/
Uses of OpenDOAR & ROAR
•Finding open access repositories
•Source lists for harvesters
–Search services – e.g. Intute RS
–Data mining
•Searching the content of OA repositories
•Analysis of repositories’ features
•Statistics for Open Access advocacy
•Funding policy decisions
•Third party mash-ups – e.g. Repository66
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
OpenDOAR Facilities
•Listing of OA repositories geographically
•Searching for OA repositories
–By keyword, language, country, software, etc.
•Charting statistics
–No. of repositories – 16 headings
•Searching the content of OA repositories
–Using Google’s Custom Search Engine
•Tools
–API, Policies Tool
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
ROAR Facilities
•Searching for OA repositories
–By keyword, country, software, content type
•Thumbnail images of home pages
•Statistical charts
–Growth of repository content
–Content type statistics
•Searching the content of OA repositories
–Using Google’s Custom Search Engine
http://www.sherpa.ac.uk/
ROAR Repository Growth Chart
http://www.sherpa.ac.uk/
ROAR Pie Chart
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
OpenDOAR & ROAR Compared
OpenDOAR
ROAR
Search by keyword
Search by keyword
Filter by: Repository type,Software, Country,Language, Content type,Subject area
Filter by: Repository type,Software, Country
Analytical statistics
Content growth statistics
API, Policies Tool
Celestial - Harvestinganalytics database
http://www.sherpa.ac.uk/
Collection Approaches
OpenDOAR
ROAR
Repositories only
Repositories
Some open access journals
Must have some openaccess full texts
Allows metadata-only andgated access items
Suggestions & Proactivediscovery
Self-registration only
Manual validation
Taken on trust + someautomated validation
http://www.sherpa.ac.uk/
Content Searching
•OpenDOAR & ROAR use Google CSE
•Uses Google’s indexes & technology
–Just searches URLs listed in the database
•Focussed search results
–High probability of open access full text items
–Unlike Google Scholar & Google per se
•Benefits for…
–Under-resourced institutions
–Unaffiliated & off-campus researchers
http://www.sherpa.ac.uk/
Repository66 Mash-up
•Developed by Stuart Lewis, Aberystwyth
•Combining…
–ROAR coordinates and data
–OpenDOAR data via the API
–Google Maps / Google Earth
•Interactive worldwide repository map
–Repository software used
–Repository size
–Descriptive data
http://www.sherpa.ac.uk/
http://www.sherpa.ac.uk/
Any questions?
•OpenDOAR
•ROAR
•Repository66