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@azaroth42
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Community Challenges For Practical Linked Open Data
Rob SandersonSemantic ArchitectJ. Paul Getty Trust
[email protected] / @azaroth42
@azaroth42
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Meta Header
@azaroth42
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Meta Header
@azaroth42
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Meta Header
@azaroth42
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Call To Action!htt
ps://ww
w.flickr.com
/photos/archivesfoundation/9517852418/
@azaroth42
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Call To Action!
Come Together as a CommunityTo Agree on How Best to
Create & Publish Historical LOD
@azaroth42
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Call To Action!
Come Together as a CommunityTo Agree on How Best to
Create & Publish Historical LOD(And then Do It!)
@azaroth42
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Agenda
Come Together as a CommunityTo Agree on How Best to
Create & Publish Historical LOD
@azaroth42
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@azaroth42
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Community not Committee
Key features of successful communities:• Focused: Solve real problems from within• Open: Requirement is participation not reputation• Active: Constant attention to product & process• Flexible: Adapt to changing situation
@azaroth42
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Community Engagement Pyramid
Leaders
Experts
Contributors
Members
Watchers/ht Katherine Skinner, @educopia
@azaroth42
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Community Leadership
1. Know Your Audience
2. Meet on Their Terms
3. Have a Conversation
4. Create Opportunities for Meaningful Participation
/ht Catherine Bracy, @cbracy
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Know Your Audience
Who is the Audiencefor Linked Open Data?
@azaroth42
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@azaroth42
uhttp://knowyourmeme.com/photos/ 424743-x-x-everywhere
@azaroth42
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LOD Community Pyramid
Architects
Providers
Developers
Users (esp. Researchers)
Watchers
@azaroth42
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Meet on Their Terms
Listening can reveal how your community speaks and can help you speak easier
with them and to them. You can use their language and meet them on their terms
“ ”
-- Kevan Lee, Director of Marketing at Buffer https://blog.bufferapp.com/social-media- marketing-voice-and-tone
@azaroth42
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Have a Conversation
What do you need to be successful?
Is our data understandable?
Can you do what you want with it?
What could we improve?
Are your users satisfied?
@azaroth42
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Create Participation Opportunities
https://www.flickr.com/photos/helvetas_vietnam/6793512507/
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Create Participation Opportunities
https://www.flickr.com/photos/helvetas_vietnam/6793512507/
Shouldn’t that E89 Propositional Objectbe E33 Linguistic Object instead?
@azaroth42
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Create Participation Opportunities
https://www.flickr.com/photos/helvetas_vietnam/6793512507/
Can’t you just give me some JSON?!
@azaroth42
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@azaroth42
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u
@azaroth42
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u
@azaroth42
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Patrick Hochstenbach, @hochstenbach
@azaroth42
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Linked Open Data
• Complete • Usable• Accurate
@azaroth42
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Linked Open Data
• Complete• Usable• Accurate
Pick One.
@azaroth42
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Linked Open Data
• Complete• Usable• Accurate
Pick One.
And Pick Usable.
@azaroth42
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Usable? Complete? Accurate?
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Optimizing Complete and Usable?
@azaroth42
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Optimizing Complete and Usable?
@azaroth42
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Optimizing Complete and Usable?
@azaroth42
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Usable vs Complete
@azaroth42
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Usable vs Complete
@azaroth42
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Target Zone
@azaroth42
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Forest for the Trees?
@azaroth42 & @bekisanderson
@azaroth42
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Evaluation?htt
ps://ww
w.nngroup.com
/articles/which-ux-research-m
ethods/
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API Evaluation
Abstraction level Comprehensibility Consistency Discoverability / Documentation Domain Correspondence Few Barriers to Entry
/ht Michael Barth, Ulm University
@azaroth42
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“Just Use Federated SPARQL Queries!”
❌ Abstraction level: Poor❌ Comprehensibility: Terrible❌ Consistency: Mediocre ❌ Discoverability / Documentation: Poor❌ Domain Correspondence: Very poor❌ Few Barriers to Entry: Abysmal
@azaroth42
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“Just Use Federated SPARQL Queries!”
Now you have more problemsthan you can count
@azaroth42
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Venn: JSON vs SPARQL Developers
@azaroth42
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Venn: JSON vs SPARQL Developers
@azaroth42
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Linked Pasts?
• Ontology• Identity
• Activity Type/Intent• Actor• Time of Activity• Place of Activity• Acted on/with Object(s)• Outcome of Activity
Scope: Description of Historical Activities
@azaroth42
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Serialization: Use JSON-LD{ "@context": "https://lod.museum/ns/context/1/full.jsonld", "id": "https://lod.museum/example/object/1", "type": "ManMadeObject", "classified_as": "aat:300033618", "label": "Example Painting", "made_of": { "id": "aat:300015045", "type": "Material", "label": "watercolor" }}
@azaroth42
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Or … {} are the New <>{ "@context": "https://lod.museum/ns/context/1/full.jsonld", "id": "https://lod.museum/example/object/1", "type": "ManMadeObject", "classified_as": "aat:300033618", "label": "Example Painting", "made_of": { "id": "aat:300015045", "type": "Material", "label": "watercolor" }}
@azaroth42
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5 Hardest Challenges in Practical LOD
5 - Order
@azaroth42
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5 - Order
https://www.ajactraining.org/women-diversity/timeline/
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5 Hardest Challenges in Practical LOD
5 - Order4 - Boundary of Representation
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4 - Boundary of Representation{ "@context": "https://lod.museum/ns/context/1/full.jsonld", "id": "https://lod.museum/example/object/1", "type": "ManMadeObject", "classified_as": "aat:300033618", # by reference "label": "Example Painting", "made_of": { "id": "aat:300015045", # by (minimal) value "type": "Material", "label": "watercolor" }}
@azaroth42
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5 Hardest Challenges in Practical LOD
5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data
@azaroth42
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3 - Meta-Meta-Meta-Meta-Meta-…-Data
http://allsmallthings.blogspot.com/2012/05/inception-info-graphic.html
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5 Hardest Challenges in Practical LOD
5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things
@azaroth42
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2 - Naming Things
http://www.getty.edu/art/collection/objects/249050/
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5 Hardest Challenges in Practical LOD
5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things1 - Cache Invalidation
@azaroth42
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1 - Cache Invalidation
@azaroth42
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5 Hardest Challenges in Practical LOD
5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things1 - Cache Invalidation0 - Off-by-One Errors
@azaroth42
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Practical Linked Open Data?
https://www.flickr.com/photos/dusty7s/4271619606
@azaroth42
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Practical Linked Open Data?
WeWantU
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@azaroth42
u https://www.flickr.com/photos/harris77/3357537737
@azaroth42
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@azaroth42
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With Community … CLOUD!
@azaroth42
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Community Linked Open Usable Data!
The Community includes Everyone
Linking to others’ data reduces Completeness burdenEnabling feedback from users reduces Accuracy burdenWorking with developers validates Usability
Remember FOAF: Focused, Open, Active, Flexible
@azaroth42
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Challenge SuggestionsPublish JSON-LD
using Lists for local orderusing Frames for graph boundaries
validated by application use as an APIwith understandable keys and aliased URIs
validated by developer understanding
And Publish notifications when you change things
@azaroth42
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@azaroth42
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Thank You!
Rob [email protected] / @azaroth42
@azaroth42
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Discuss!
