By Nate Wilson Start okAw&list=LLPCJLsBuKR3QXijKn41e4hQ&fe ature=mh_lolz .
in the Bibliogr aphic Cloud · Bibliogr aphic Cloud Connecting the data with the liter ature....
Transcript of in the Bibliogr aphic Cloud · Bibliogr aphic Cloud Connecting the data with the liter ature....
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Semantic e-Sciencein the
Bibliographic Cloud
Connecting the data with the literature
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Semantic e-Sciencein the
Bibliographic Cloud
Connecting the data with the literature
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Semantic e-Sciencein the
Bibliographic Cloud
Connecting the data with the literature
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Semantic e-Sciencein the
Bibliographic Cloud
Connecting the data with the literature
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Connecting the data with the literature
(using Linked Data)
Image: ariz, http://flickr.com/photos/ariz/
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Linked Data
Linked Data is about using the Web to connect related data that wasn’t previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. More specifically, Wikipedia defines Linked Data as “a term used to describe a recommended best practice for exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF.”
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Linked Data
Linked Data is about using the Web to connect related data that wasn’t previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. More specifically, Wikipedia defines Linked Data as “a term used to describe a recommended best practice for exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF.”
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The Web of Documents
★ A global filesystem
★ Designed to be human-readable
★ Documents are primary objects
★ Links are between documents
★ Link semantics are implicit
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The Web of Documents
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The Web of DocumentsProblem:
How are these documents related?
??? ??????
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The Web of Documents“What’s the favorite recording
artist of all famous people born in the city of West Lafayette who are
depicted in this photo?”
Image: Michael Stephens, http://flickr.com/photos/mstephens7/
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Limitations
★ Disconnected data (many silos)
★ Lack of structure
★ Duplication across documents
★ Difficult to integrate documents
★ Can’t execute complex queries
Image: zoomzoom, http://flickr.com/photos/zoomzoom/
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Linked Data Principles
★ Use URIs as names for things.
★ Use HTTP URIs so people can look up those names.
★ When someone looks up a URI, provide useful information.
★ Include links to other URIs so they can discover more things.
Image: skipnclick, http://flickr.com/photos/13888282@N02/1478585501/
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The Web of Data
★ A global database
★ Designed to be machine-readable
★ Primary objects are things
★ Links are between things
★ Link semantics are explicit
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The Web of Data
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The Web of Data
Thing Thing Thing Thing
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The Web of Data
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related related related
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The Web of Data
Thing Thing Thing Thing
related related related
Thing
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The Web of Data
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related
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The Web of Data
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related
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The Web of Data
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The Web of Data
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The Web of Data
Thing Thing Thing Thing
related related related
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related
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The Web of Data
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The Web of Data
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Browsers
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The Web of Data
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Browsers Mashups
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The Web of Data
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Browsers Mashups Search Engines
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The Web of Data
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Linked data opens silos,enabling data integration,
network effects,and interoperability.
Browsers Mashups Search Engines
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★ Started in February 2007 by Chris Bizer and Richard Cyganiak
★ Project of the W3C SWEO
★ Publish datasets as Linked Data
★ Interlink all the data
★ Develop apps that consume it
★ A grassroots effort to bootstrap the emerging web of data
Linking Open Data Project
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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★ MIT
★ University of Southampton
★ DERI
★ U Penn
★ BBC
★ OpenLink
★ Talis
Linking Open Data ProjectParticipating organizations:
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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LOD Growth
May 2007
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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LOD Growth
July 2007
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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LOD Growth
August 2007
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
September 2007
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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LOD Growth
Image: Richard Cyganiak, http://richard.cyganiak.de/2007/10/lod/
“What’s the favorite recording artist of all famous people born in the city of West Lafayette who are depicted in this photo?”
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Linked Data & Science
★ Ability to query across disparate datasets as if they were integrated & locally available
★ Ability to construct arbitrarily complex search queries
★ Ability to “follow your nose” through links to data you may not have known existed
Image: frankz, http://flickr.com/photos/frankz/
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Queries of the Future★ Find data representing the state of
the neutral atmosphere anywhere above 100km and toward the Arctic circle (above 45° North) at times of high geomagnetic activity.
★ ... peer-reviewed papers that incorporate those data?
★ ... other datasets used by authors of those papers?
★ ... by authors of all cited papers?
Image: Jim Grant, http://flickr.com/photos/jimgrant/
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Semantic e-Science Efforts
★ IVOA / SKUA
★ VSTO
★ SESDI
★ SWEET
★ GEON
★ Lots of biomedical stuff
Screenshot: SKUA project, http://www.myskua.org/
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A Slight Problem
★ The graph of linked science data is sparse
★ Violates Linked Data principle #4
★ Using RDF improves interoperability, but datasets are still not well connected
★ This makes discovery a challenge
Image: Mike Giovinazzo, http://flickr.com/photos/mike_giovinazzo/
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e-Science Needs Hubs★ Like many network structures,
linked data graphs tend to develop a few “hubs” that are well-connected
★ These hubs create links between data that would otherwise remain disconnected
★ In LOD: DBpedia, FOAF profiles, Geonames
Image: Cobalt, http://flickr.com/photos/cobalt/
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e-Science Needs Hubs
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e-Science Needs Hubs
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e-Science Needs Hubs
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The Point
Image: dulcelife, http://flickr.com/photos/dulcelife/
Library datacan provide the hubs
for a networkof linked scientific data.
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★ Catalog records, authority files, controlled vocab, publisher data
★ Links exist, but not yet machine readable
★ Reference librarians know this from experience
★ Not a new concept (Semantic Association Networks)
The Point
Image: dulcelife, http://flickr.com/photos/dulcelife/
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★ Catalog records, authority files, controlled vocab, publisher data
★ Links exist, but not yet machine readable
★ Reference librarians know this from experience
★ Not a new concept (Semantic Association Networks)
The Point
Image: triplefivedrew, http://flickr.com/photos/triplefivedrew/
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★ Catalog records, authority files, controlled vocab, publisher data
★ Links exist, but not yet machine readable
★ Reference librarians know this from experience
★ Not a new concept (Semantic Association Networks)
The Point
Image: metimbers2000, http://flickr.com/photos/metimbers2000/
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Library as Linked Data Hub
VSTO
SKUA
VPIN
Linkhub
bio2rdf
combe-chem
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Library as Linked Data Hub
LCSH LOCAuthorities
Worldcat
MESH
FedoraPACS
Pubmed
Topaz/Kowari
VSTO
SKUA
VPIN
Linkhub
bio2rdf
combe-chem
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Library as Linked Data Hub
We need a Linking Open Data projectfor library data.
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Who’s Working On It?
★ ADS - data linking
★ NLP / text mining
★ Manual indexing
★ Publisher-supplied metadata
★ Microsoft and Google
★ Publishers (Nature, Elsevier, PLoS)
Screenshot: International Virtual Observatory Alliance, http://www.ivoa.net/
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What About Librarians?★ NSDL Metadata Registry
★ DCMI/RDA Joint Task Group
★ OAI ORE
★ LCSH in SKOS @ LoC
★ Bibliographic Ontology
★ OpenLibrary
★ Semantic repositories
★ Semantic MARC @ Talis
Screenshot: Open Library, http://www.openlibrary.org/
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Get Involved★ http://metadataregistry.org/
★ http://dublincore.org/dcmirdataskgroup/
★ http://www.openarchives.org/ore/
★ http://lcsh.info/
★ http://bibliographicontology.com/
★ http://openlibrary.org/
★ http://www.fedora-commons.org/
★ http://tinyurl.com/639pp4 (Rob Styles)
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Thanks!★ http://metadataregistry.org/
★ http://dublincore.org/dcmirdataskgroup/
★ http://www.openarchives.org/ore/
★ http://lcsh.info/
★ http://bibliographicontology.com/
★ http://openlibrary.org/
★ http://www.fedora-commons.org/
★ http://tinyurl.com/639pp4 (Rob Styles)