Linked Open Data publications through

Wikidata & persistent identification

in Flemish museums

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

Persistent URI’s

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

DATA CLUSTERS

RESOLVEROpen source!

https://github.com/PACKED-vzw/resolver

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

https://www.projectcest.be/images/3/38/20150430_Handout_Open_Refine_workshop.pdf

ENRICHMENT THROUGH LINKED DATA

External authorities:- Wikidata, VIAF, RKDartists, ODIS,

Geonames, AAT (Getty Vocabularies), Iconclass

https://www.projectcest.be/wiki/Publicatie:Project_Persistente_identificatie

More contextual data!

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

Lifecycle of an artwork

What happend to an artwork over time and where did this event take place?

Lifecycle of an artwork

What happend to an artwork over time and where did this event take place?

Lifecycle of an artwork

What happend to an artwork over time and where did this event take place?

Provenance timeline

How did an artwork change owners through time?

Exhibitions map

In which countries were artworks from a particular collection shown in an exhibition?

Acquisition source

From which sources did a museum acquire artworks? (one museum)

Acquisition source

From which source did a museum acquire artworks?(five museums)

Objectname/Iconography streamgraph

How important was an objectname in a collection through time?

https://www.projectcest.be/wiki/Publicatie:Event-based_objectbeschrijvingen

Museums & Linked Open Data via Wikidata

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

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

Our biggest help: the Wiki(data) community

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

We made a nice explanatory screencast

Publicly available via YouTube / only in Dutch

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

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

Museums sent us their dataset ...What was included?

● Results from previous PID project● Almost no ‘own’ information● Largely external enrichments● Inluding persistent resolverlinks

… this got uploaded ...

Largest load: through bot by volunteer Maarten (Multichill)

… 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:

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.

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) … ?

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.

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.

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)

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?

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

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

~~ The End ~~Questions/experiences on persistent URI, events-data or Wikidata?

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ALINA@PACKED.BEBARBARA@PACKED.BE