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Linked Library Data Tuning Library Metadata for the [Semantic] Web Presented 2011-03-16 ALCTS RDA Webinar Series Corey A Harper.

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Presentation on theme: "Linked Library Data Tuning Library Metadata for the [Semantic] Web Presented 2011-03-16 ALCTS RDA Webinar Series Corey A Harper."— Presentation transcript:

1 Linked Library Data Tuning Library Metadata for the [Semantic] Web Presented ALCTS RDA Webinar Series Corey A Harper

2 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Topical Overview Semantic Web & RDF Intro Linked Open Data [Linked] Library Data Resource Description and Access (RDA) Beyond MARC As RDF Vocabularies Broader Interoperability Small steps forward…

3 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Semantic Web TBLs original vision Weaving the Web – 1999 Then: Focus on Machine Reasoning Scientific American Article Now: Focus on things & links Reasoning & Inferencing less central

4 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Semantic Web Originally: Metadata standard built on XML Metadata about Web things (documents) Eventually: Metadata about all sorts of things And about relationships between things What are the things?

5 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services 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

6 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services 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.

7 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

8 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services 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.

9 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

10 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

11 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

12 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Data in the Cloud Hubs in the May 2008 Version: FOAF DBPedia Myriad Sources coming online: Thompson Reuters New York Times British Broadcasting Corporation Government Data (UK, US and more) Google and Facebook More and More Library, Archive and Museum Data Geonames MusicBrains

13 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services DBpedia Structured Wikipedia Data Genres, Influences, External Links Multi-lingual / Multi-script labels Rich Semantics Many linkages to other datasets

14 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services DBpedia Model Partial basis in data entry conventions InfoBoxs, and InfoBox Templates Metadata Entry Format Partial source of Ontology Class Structure Vocabulary Design

15 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services DBpedia 3.4 Million things described Ontology based on infoboxes 1.5 million things classified Approx. 50,000 Properties Approx. 1,200 defined in ontology

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19 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services What *things* are in our data???

20 …Library data is extremely complicated

21 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Library Metadata Rich stores of MARC, MODS, &c. Robust Controlled Vocabularies Subject Heading lists Code lists Thesauri Emerging data model in FR*

22 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Bibliographic Vocabs Bibliographic Ontology (Bibo) Zotero, Omeka, EPrints and Others FRBR – unofficial And now Official (Thank you IFLA!) ISBD Resource Description and Access (RDA)

23 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Linked Library [Archive, Museum] Data LIBRIS (Swedish Union Catalog) Library of Congress (LCSH, OSI) German National Library Hungarian National Library British Library Europeana Archives Hub & LOCAH

24 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Library Authority Data Include links to other URIs. so that they can discover more things. Short of providing and linking to URIs, this *is* authority data. This is what our authority files are for.

25 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Library Controlled Vocabularies: Benefits Reputation - Trusted Tradition Mature - Time tested and carefully developed General & Comprehensive - Cover large knowledge spaces

26 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services SKOS Simple Knowledge Organization System Properties and Classes for describing Controlled Vocabulary Heavily used in Linked Library Data id.loc.gov Virtual International Authority File (VIAF) bibo:book skos:primaryTopic skos:subject

27 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Other Vocabularies Thesaurus for Economics French Subject Headings Swedish Subject Headings IconClass (not on web yet) OCLC Terminology Services Dewey Decimal Classification Virtual International Authority File Metadata Authority Description Schema (MADS)

28 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Resource Description and Access Current focus on MARC Much criticism Within MARC, not a tremendous change Different problems outside of MARC Possible focus outside of MARC RDA as realization of FRBR RDA as Metadata Vocabularies RDA as related to Bibo

29 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services RDA as Metadata Vocabularies RDA elements, roles and vocabularies have been provisionally registered IFLA FRBRer and ISBD elements and vocabularies have been officially registered Discussions about long term maintenance of both RDA and the vocabularies Effort to create multi-language RDA Vocabularies Slide Adapted from Diane Hillmann

30 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Metadata Registries Formerly NSDL Registry Now Open Metadata Registry Managing Vocabularies Providing Vocabulary Services RDA – Now adding translations IFLA Work FRBR, FRAD, FRSAD, ISBD

31 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

32 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

33 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

34 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services

35 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services RDA as realization of FRBR What will this look like? Probably *wont* be stored in MARC Overly constrained by FRBR? Properties have FRBR domains & ranges Unofficial Generalized properties Non-FRBR metadata Similar to DCMIs range constraints…

36 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Support Free Range Metadata! Photo Credit:

37 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services BIBO and RDAVocab Open question re: alignment Simplified view of Bib Data is useful Interlinking with more general data Interlinking with non-library domain data FRBR as internal model for library domain Examples

38 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Why Does This Matter? Our descriptions no longer stand alone! Connect our data with the rest of the WEB Allow others to reuse more easily FOAF, Geonames DBPedia MusicBrains New York Times, Thomson Reuters Government Data - data.gov British Broadcasting Corporation Other Library, Archive and Museum Data

39 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Conclusions Distributed bibliographic control environment Linking Data Focus on identification over description In short, by treating values as non-literal resources and assigning URIs to them we give ourselves (and others) the hooks on which to hang further descriptions. - Andy Powell

40 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Future Work Records in Linked Library Data Vocabulary Alignment and Interoperability DCMI planning in this space General Metadata Interoperability Application Profiles? Archival Data for *context* - (EAC-CPF)

41 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services W3C Linked Library Data Incubator Collecting, Curating and Clustering over 50 Use Cases Mining use cases for functional requirements and design patterns Recommendations to W3C Should lead to Working Groups

42 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Other Activities ALCTS/LITA Linked Library Data IG IFLA Semantic Web IG https://wiki.d-nb.de/x/vA10Ag Open Knowledge Foundation CKAN Linked Library Data Group:

43 Harper - Linked Library Data - RDA Webinar Series Hosted by the Association for Library Collections and Technical Services Thanks! Questions?


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