Community Challenges for Practical Linked Open Data - Linked Pasts keynote

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Community Challenges For Practical Linked Open Data

Rob SandersonSemantic ArchitectJ. Paul Getty Trust

rsanderson@getty.edu / @azaroth42

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Meta Header

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Meta Header

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Meta Header

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Call To Action!htt

ps://ww

w.flickr.com

/photos/archivesfoundation/9517852418/

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Call To Action!

Come Together as a CommunityTo Agree on How Best to

Create & Publish Historical LOD

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Call To Action!

Create & Publish Historical LOD(And then Do It!)

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Agenda

Create & Publish Historical LOD

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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

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Community Engagement Pyramid

Leaders

Experts

Contributors

Members

Watchers/ht Katherine Skinner, @educopia

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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?

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uhttp://knowyourmeme.com/photos/ 424743-x-x-everywhere

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LOD Community Pyramid

Architects

Providers

Developers

Users (esp. Researchers)

Watchers

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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

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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?

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Create Participation Opportunities

https://www.flickr.com/photos/helvetas_vietnam/6793512507/

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Shouldn’t that E89 Propositional Objectbe E33 Linguistic Object instead?

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Can’t you just give me some JSON?!

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Patrick Hochstenbach, @hochstenbach

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Linked Open Data

• Complete • Usable• Accurate

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Linked Open Data

• Complete• Usable• Accurate

Pick One.

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Linked Open Data

• Complete• Usable• Accurate

Pick One.

And Pick Usable.

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Usable? Complete? Accurate?

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Optimizing Complete and Usable?

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Usable vs Complete

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Usable vs Complete

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Target Zone

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Forest for the Trees?

@azaroth42 & @bekisanderson

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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

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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

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“Just Use Federated SPARQL Queries!”

Now you have more problemsthan you can count

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Venn: JSON vs SPARQL Developers

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Venn: JSON vs SPARQL Developers

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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

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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" }}

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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" }}

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5 Hardest Challenges in Practical LOD

5 - Order

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5 - Order

https://www.ajactraining.org/women-diversity/timeline/

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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" }}

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5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data

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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 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things

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2 - Naming Things

http://www.getty.edu/art/collection/objects/249050/

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5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things1 - Cache Invalidation

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1 - Cache Invalidation

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5 - Order4 - Boundary of Representation3 - Meta-Meta-*-Data2 - Naming Things1 - Cache Invalidation0 - Off-by-One Errors

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Practical Linked Open Data?

https://www.flickr.com/photos/dusty7s/4271619606

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Practical Linked Open Data?

WeWantU

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u https://www.flickr.com/photos/harris77/3357537737

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With Community … CLOUD!

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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

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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

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Thank You!

Rob Sandersonrsanderson@getty.edu / @azaroth42

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Discuss!

Community Challenges for Practical Linked Open Data - Linked Pasts keynote

Technology

Transcript of Community Challenges for Practical Linked Open Data - Linked Pasts keynote

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