This page provides additional details around the integration of information from Wikidata, DBPedia, and the Library of Congress (LOC) linked data service into the Cornell production catalog. We began this work as part of LD4P2 and LD4P3 discovery explorations around knowledge panels and author and subject pages. After multiple discussions with our library user representatives and modifications based on their feedback, we coordinated with the Discovery and Access team, the group responsible for our catalog implementation, to move forward with this integration. These features are subject to change as we continue to support and build on them.
Examples and screenshots
On the page for this Middlemarch item, the user can click on "author info" to open up the knowledge panel for George Eliot.
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Similarly, users can reach the subject page for a heading from the subject browse list (as shown below). We are not currently implementing separate subject info buttons from the item view page. Clicking on the "subject info" button next to the heading "Russo-Japanese War" will take the user to the subject page.
When there is a one to one correspondence between a Name/Title authorized access point and a Wikidata Work, the user can see information from Wikidata inline with the rest of the catalog record, e.g page for The Magic Flute.
For items in the catalog that contain more than one work and have Name/Title authorized access points and matching Wikidata Works, e.g. this Vivaldi con moto item, the user can click on "work info" to open up the knowledge panel for any of the works.
Clicking on "view full info" will lead to the work page for any of the works, as you can see below.
Data integration
- Knowledge panels
- We now include an image and short description from Wikidata.
- Author, works, and subject browse pages:
- We now include
- An image from Wikidata
- A description from DBPedia (or a description from Wikidata if the former is not available)
- Additional Wikidata information for people such as citizenship, education, and pseudonyms
- Additional Wikidata information for works such as thematic catalog numbers for musical works, first performance date/location, and dedications.
- The LOC classification number which is used to generate a link to our call number browse.
- We now include
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For example, if we want to not display the image and description for the heading "Eliot, George, 1819-1880" but wish to display the remaining properties we retrieve from Wikidata, such as citizenship and place of education, we would include the following in the YAML file:
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- Knowledge panel
- Author and subject pages
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/assets/javascripts/author_browse.js
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/assets/javascripts/subject_browse.js
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/assets/javascripts/retrieve_lcsh.js
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/controllers/browse_controller.rb
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/views/browse/_author_info.html.erb
- https://github.com/cul-it/blacklight-cornell/blob/dev/app/views/browse/_subject_info.html.erb
- Configuration for what not to display for specific headings
- Related additions to routes.rb
Code Block language ruby get 'panel'=> 'kpanel#panel' get 'kpanel/index' # Permissions for showing certain external info get '/check_permissions' => 'handle_external_data#check_permissions', as: 'check_permissions'
Additional information about specific code changes can be found in the Discovery and Access documentation for this work here.
Thanks and acknowledgements
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