context and prosopography: putting the 'archives' into lod-lam corey a harper saa 2012 -...
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Context and Prosopography: Putting the 'Archives' Into LOD-LAM
Corey A Harper
SAA 2012 - MDOR
2012-08-08
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 2
Publish Publish Publish!
http://www.ted.com/talks/tim_berners_lee_on_the_next_web.html
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 3
Linked Open Data
• Use URIs as names for things
• Use HTTP URIs so that people can look up those names.
• When someone looks up a URI, provide useful information.
• Include links to other URIs. so that they can discover more things.
http://www.w3.org/DesignIssues/LinkedData.html
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 4
Linked Data
• Metadata as a Graph
• Typed “things”, named by URIs
• The relationships between those things, also built on URIs
• Ease of integration *across* data sources – “merging graphs”
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Examples
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 6
Remodel to link
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And Link to Other Descriptions
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 8
Semantic Web Terminology
• Resource: Any “thing”• Class: Abstraction of a type of thing• Individual: An instance of a class• Property: An attribute of an individual• Statement/Triple:
A Resource (subject) A Property (predicate / verb) A Value (object) - Nodes
• Graph: Visual Representation of statements• Ontology: A domain specific collection of
classes and properties
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 9
Semantic Web Terminology
• Nodes: The Subjects and Objects in a Graph• Arcs: The Predicates in a Graph• Domains and Ranges: Constraints on Nodes
Domain: What things can be subjects Range: What things (or strings) can be objects
• Literals: Values as strings rather than things• Named Graphs: Graphs with URIs treated as
nodes.
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 10
Open & Closed World Assumptions
• Closed World - Metadata patterns known, semantics implicit
• Open World - Continual integration of heterogeneous metadata Requires Self-Describing Data Linked Data Principles come in big here
http://www.w3.org/2001/tag/doc/selfDescribingDocuments
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 11
Library Systems are *Closed* World!
http://www.flickr.com/photos/tomgehrke/6950344619/
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Most Metadata *systems* are closed world
• Libraries, Archives, Museums• Publisher provided data• Other scholarly systems:
Even Open Access ones (OA != OW)
• Search Interfaces (even Google!)
• You manage what you have, and generally manage a closed set of metadata
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Social Networks of Archival Context
Image From: http://inkdroid.org/journal/2010/08/12/archival-context-on-the-web/
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Linking Lives – Screenshots from P. Johnston
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Linking Lives – Screenshots from P. Johnston
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So back to my title…
Prosopography
The study of an aggregate group based on systematic biographical study of
individuals
http://en.wikipedia.org/wiki/Prosopography
http://prosopography.modhist.ox.ac.uk/course_syllabuses.htm
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Context
Narrative
Story telling
The archive’s story, but also…
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Users’ stories
Adding context through recombinant metadata
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• Distributed information ecosystem Linking Data Focus on identification over description
• Create navigable, browsable information landscapes
• Relationships between resources weave context & enrich user experiences
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2012-08-08 Harper - SAA - Metadata and Digital Object Roundtable 20
Thanks!
212.998.2479
@chrpr
Questions?