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Linked Open Data publications through
Wikidata & persistent identification
in Flemish museums
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Museum as an online knowledge source
‘Offering original authentic information from trusted sources’:
• permanently available• access to authentic and up-to-date information about
artworks• easy to find and to reuse
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Persistent URI’s
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artworkhttp://cvg.
be/collectie/work/id/1856
datahttp://kmska.
be/collectie/work/data/1856
picturehttp://kmska.
be/collectie/work/representation/185
6
picturehttp://lukasweb.
be/collectie/work/representation/185
6
datahttp://cvg.
be/collectie/work/data/1856
creatorhttp://viaf.org/
viaf/312406452/
typehttp://vocab.getty.edu/aat/3000337
99
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DATA CLUSTERS
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RESOLVEROpen source!
https://github.com/PACKED-vzw/resolver
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RESOLVER
API / collectie-beheersysteemDAM - systeem
resolver
CMS collectiewebsite
Data manager
europeanamobiele apps museumwebsite
URI
URL (JPEG) UR
L(XM
L)
URL (HTML)
UR
I URI
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https://www.projectcest.be/images/3/38/20150430_Handout_Open_Refine_workshop.pdf
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ENRICHMENT THROUGH LINKED DATA
External authorities:- Wikidata, VIAF, RKDartists, ODIS,
Geonames, AAT (Getty Vocabularies), Iconclass
https://www.projectcest.be/wiki/Publicatie:Project_Persistente_identificatie
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More contextual data!
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Event-based object description
Wikidata, VIAF, RKDartists..
Event 1 Event 2 Event 3 Event 4 Event 5
Geonames, TGN …
Wikidata; Worldcat; Amazon api; Librarything api; LoC
CDS; Olid; Openlibrary.org…
ISO 8601
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Lifecycle of an artwork
What happend to an artwork over time and where did this event take place?
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Lifecycle of an artwork
What happend to an artwork over time and where did this event take place?
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Lifecycle of an artwork
What happend to an artwork over time and where did this event take place?
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Provenance timeline
How did an artwork change owners through time?
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Exhibitions map
In which countries were artworks from a particular collection shown in an exhibition?
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Acquisition source
From which sources did a museum acquire artworks? (one museum)
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Acquisition source
From which source did a museum acquire artworks?(five museums)
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Objectname/Iconography streamgraph
How important was an objectname in a collection through time?
https://www.projectcest.be/wiki/Publicatie:Event-based_objectbeschrijvingen
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Museums & Linked Open Data via Wikidata
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What were we going to do?
1. PACKED writes a whitepaper on Wikidata (how can you add data to Wikidata, what are Wikidata advantages to your institution, # best practices).
2. Project partners send a CSV dataset to us containing a.o. the created PIDs for their artworks.
3. This dataset is uploaded to Wikidata under CC0 license - the info from the set is then used in different Wiki-channels (a.o. Wikipedia)
4. Partners get back an RDF export of the data they delivered to us
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Why would you, as a museum, participate?
1. Because it is done for FREE2. PACKED & Wiki-community do the work: MINIMAL INPUT3. Wikidata feeds Wikipedia = REACH (BIGGER/OTHER/...) AUDIENCE4. Lots of possibilities for REUSE in your own projects, cf. by means of RDF
export
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Our biggest help: the Wiki(data) community
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Some great people here
Sandra Fauconnier, hired as project staff memberFoto: Eneasmx, CC-BY-SA 4.0
Maarten Dammers, volunteer data uploaderFoto: Sarah Stierch, CC-BY 4.0
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We made a nice explanatory screencast
Publicly available via YouTube / only in Dutch
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We wrote a whitepaperChapters
1. Wikimedia, Wikipedia, Wikidata2. Costs and benefits of using Wikidata
(=business cases)3. Crosswalk, delivery, upload process4. Conclusion
Annex: cases usage guidelines
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Business cases / costs and benefits
Museums Wikimedia Society
Benefits 1. Low cost2. Audience reach3. Creativity4. Data in wider context
1. Mission accomplished2. Quality data3. Time to learn4. Incremental growth of data
1. Heritage visible to audience
2. Low cost3. Open data4. Source for Wikipedia
articles
Costs 1. Waive exclusivity2. Time invested for
maintenance3. Time invested for cleaning
1. Cost for storage2. Time investment (volunteers)3. Need for new tools
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Museums sent us their dataset ...What was included?
● Results from previous PID project● Almost no ‘own’ information● Largely external enrichments● Inluding persistent resolverlinks
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… this got uploaded ...
Largest load: through bot by volunteer Maarten (Multichill)
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… and the CC0 license got ok-edThe project page of Wiki Loves Open Data explains the expectations of the Wikidata community regarding donated open data:
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Information = facts.
You ONLY provide the information from your CSV set, NOT the corresponding digital images. What WILL be on Wikidata:
● Persistent links going to your resolver● Links referring to other external authorities, like e.g. VIAF
The ‘own’ data you provide under CC0 is title of the artwork, creator, date(s), object name/type and the name of your organisation.
As CC0 permits any kind of reuse, you can add Usage Guidelines. Though not legally binding, they may touch on the ‘good family father’ principle. MoMa, Tate and Cooper-Hewitt have done this too.
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NOTABLE (‘relevance’)Wikidata: 2 goals
● Wikidata centralises links between different language versions in Wikimedia projects
● Wikidata serves as a generic knowledge bank for the entire world
In there: 3 criteria (at least 1 should be met)
1. The item contains at least one valid sitelink to a content page on a Wikimedia project.
2. The item refers to a clearly identifiable concept or material entity, and is sufficiently relevant, which can be proven by the fact that the item is described in serious, public sources.
3. The item covers a structural need; for example it is useful for describing other items.
The Reading by Emile Verhaeren (Théo van Rysselberghe)0 Wikipedia articles but: OK!
Kazuifel with saints (Anonymous, 16th century) … ?
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EDITABLE, MAINTAINED
● Who are the Wikidata volunteers?● Museums as authorities ● Wikidata -> references/sources● There is room for a different opinion … ● … with authoritative sources!
Authority control (literally) on Wikidata
Peter Paul Rubens is linked to the following identifiers on Wikidata: Library of Congress Authors, VIAF, ISNI, GND, Freebase, ULAN, Bibliothèque Nationale de France, CANTIC, BBC Your Paintings, RKDartists, Sandrart.net, Oxford Biography Index, NTA, Digitale Bibliotheek der Nederlandse Letteren, EMLO, genealogics.org, Smithsonian American Art Museum, National Portrait Gallery, Web Gallery of Art, BALat, SUDOC, Artsy, Open Library, NGA, NNDB.
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The numbers
Wikidata now (end if Jan ‘16) contains descriptions/records on 26.680 works of art from the museums that participated in this project. At project start (Oct ‘15), there were 65. (Wikidata had 10.453 items from Dutch collections.)
● Those 26.680 works of art were created by 3.615 artists. Of these, a few hundreds are newly entered in Wikidata because of the project.
● There was a mapping of 399 different object names/types to the ‘instance of’ terms of Wikidata - from acrylicschilderij to zwart-witfoto.
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The publicationsWhitepaper - but also a Manual on how to add Wikidata records from scratch or update/add more information to existing ones● manually, using Quickstatements language (or not)● using a bot (and a volunteer)
Full doc contains screenshots, step-by-step design & is translated to English & will be made available on Wikidata project page (+ communication)
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Closing project workshop1. Get your own account!2. Search for your own collection & museum on Wikimedia Commons and add
an image to a Wikidata record3. Find an item from your collection on Wikidata that had already been worked
on by a volunteera. Win a biscuit if you find a huge ‘mistake’b. Correct / add information where needed
4. Add a brand new record to Wikidata5. How does the watchlist work?6. Look at the RDF version of one of the works of art from your collection. Which
information do you find most interesting?
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Next steps: PACKED vzw & Wikidata
● Publication of all materials in English on project page: model/inspiration for alike projects or museum communities
● Adding information to creators: meat to bones (birth/dying date/profession/authority links, …) ● Add and correct dates, match ‘parts of’ works with the sum of parts (e.g. tryptich)● Complement materials and ‘instance of’ types ● Correct PIDlink mappings● Check and correct doubles, wrong attributions, copies, …
● Framework of larger project: Datahub for Museums
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Next steps: Museum partners
● Public side of the project: interested in Sum of all Paintings, edit-a-thons, Wiki loves Art
● Own communication!● (Prototyping)project based on
Wikidata (catalogue, app, game …) as a developing testbed or case
And … an IMAGEdonation
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~~ The End ~~Questions/experiences on persistent URI, events-data or Wikidata?
Share them with
[email protected]@PACKED.BE