Sharing cultural heritage the linked open data way: why you should sign up

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Johan Oomen, Lotte Belice Baltusen (Netherlands Institute for Sound and Vision)

Marieke van Erp (VU University Amsterdam)

ell brown / CC BY

http://agora.cs.vu.nl

Sharing cultural heritage the linked open data way

@johanoomen, @lottebelice, @merpeltje

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Sharing data: why?

• Promote sharability of cultural heritage resources (data and metadata) to:

• Support end-user participation

• Maximise visibility

• Stimulate business innovation (higher quality and diversity)

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The context of this talk

1. Digitisation: Images for the Future

2. Advocacy: Open Cultural Data

3. Computer Science: Agora project

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Link to the full paper

• http://www.museumsandtheweb.com/mw2012/papers/sharing_cultural_heritage_the_linked_open_data

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1. Images for the Future

• a 7 year digitisation project in 90 seconds

• VIMEO http://vimeo.com/21965366

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2. Open Cultural Data

• ...a network of cultural professionals, developers, designers, copyright specialists and open data experts

• ...support open cultural data and encourages the development of valuable cultural applications.

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http://www.opencultuurdata.nl/about/

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Open Cultural Data

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WorkshopsMasterclasses

HackatonsDatablogs

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Rijksmuseum Dataset

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3. The Agora Project

• 2009-2013

• VU Amsterdam (CS + History Departments), Netherlands Institute for Sound and Vision, Rijksmuseum Amsterdam

• Linking museum objects by extracting information on historic events.

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• Historical context is missing• What happened before/after• ‘Grand narratives’

• Based on keyword search• Exact matches

• ...and manual annotation is costly

why enrichment?

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Simple Event Model

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New Links

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...highlighting two examples

• Open Images (openimages.eu)

• emphasis: sharing content and data

• Europeana (europeana.eu)

• example of linked open data

Open, open, open!•Open source (MMBase, FFmpeg, LAMP)•Open media formats (Ogg Theora, WebM)•Open standards (HTML5) •Open API (OAI-PMH)•Open content!

Open content•Creative Commons – BY-SA as recommended

license•3000 items from the Sound and Vision collection•Work with other providers too•Low resolution vs. high resolution

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1. Reuse and audience participation

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2. Increase impact and visibility

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Syndicate to external platforms

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• 1.569 items items Wikimedia Commons• Used within 437 Dutch-language articles• Also: 570 articles in 54 (!) non-Dutch languages• 3 million pageviews every month• Most traffic from the English-language Wikipedia

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3. New applications by 3rd parties

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• http://www.youtube.com/watch?v=MXt4ExebHsA

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Europeana Foundation

• http://vimeo.com/36752317

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Learn more

• See paper for more detailed information

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Europeana ~ over 20 million items

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Seman&c  browsing

http://eculture.cs.vu.nl/europeana

(enriched by AAT, ULAN, WordNet, IconClass

Conclusions• Time to embrace openness: innovation, impact, reuse

• New success metrics needed:

• Income: measured in money (low/high res)

• Public Outreach: to measure the number of (online) visitors

• Reuse: to measure the use of data and content by heritage institutions themselves and by others

• Public Participation: to measure the added metadata and content

• Collaboration (Open Culture Data) helps to built momentum and raise awareness

• Linked Open Data gaining momentum in the CH domain

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credits

• Publications etc. http://agora.cs.vu.nl

• Merci Web & Media Group at VU University for inspiration & images!!

@johanoomen, @lottebelice, @merpeltje