Learning, Understanding, and Using Linked Data

Marcia Lei Zeng PhD, Kent State University

Workshop, 23-4-2018 1:00 PM - 4:00 PM. 2018 Digital Initiatives Symposium

Abstract

This workshop begins with a review of Linked Data fundamentals, focusing on the developments in the field that most impact libraries, archives, and museums (LAMs). Various Linked Data products created by LAMs will be used to demonstrate the capabilities of applying the Linked data approach to the information organization and discovery in the Semantic Web. In addition, the workshop will provide hands-on experience in which participants will access and wield Linked Data datasets as non-techy end-users, for the purpose of understanding the basics of Linked Data as well as the potential benefits of Linked Data approach.

The second part of the workshop will introduce a competency framework that defines the knowledge and skills necessary for professional practice in the area of Linked Data, developed by the Linked Data for Professional Educators (LD4PE) project funded by the Institute of Museum and Library Services (IMLS). The workshop will include an overview of the structure and content of the Competency Index for Linked Data and the LD4PE website (http://explore.dublincore.net). The hands-on part will explore the LD4PE website’s competency index and over 600 related learning resources aligned with the competencies, a number of roadmaps for various professionals, and a package of learning Linked Data through a OCLC provided WorldCat Linked Data dataset.

WHAT

Linked Data fundamentals

• Presentations (1:00 - 1:50 pm.)
  • LOD 12345 -- Learn by understanding 3triples (pdf)
  • LOD 12345 -- Learn by understanding 4principles (pdf)
    
    
• Resources referred in presentations:
  • RDF 1.1 Primer, W3C
  • DBpedia - background || University of San Diego page || DBpedia Public SPARQL Endpoint
  • RDFa-Play tool

WHO

(cont.) Linked Data fundamentals

• Presentation (2:00 pm. - 2:20 pm.)
  • LOD 12345 -- Learn by analyzing 5stars (pdf)
    
    
• Cases to be studied:

• 1.Special Collections, Archives
  • Linked Jazz
  • Online Coins of the Roman Empire (OCRE)
• 2. Bibliographic data
  • WorldCat -- E.g., WorldCat Person entity for Hawking, Stephen || Works entity for Hawking's book and The WorldCat Identity entry for Hawking, Stephen
  • British National Bibliography (BNB) and its SPARQL query examples
• 3. Knowledge organization systems (KOS) - thesauri, name authorities, and others
  • FAST subject headings: SearchFAST || MapFAST
  • Getty Vocabularies: LOD and its SPARQL query templates  
    
• 4. Digital Scholarships
  • Cornell University Scholars@Cornell based on VIVO (for research discovery)

HOW

Hands-on -- Learn by creating (2:20 pm. - 2:50 pm. + after the workshop)

1. Obtain Data Using SPARQL

• Instructions:
  • Start with TGN (Thesaurus of Geographic Names) (hands-on-sparql-TGN.pdf)
    • Go to Getty LOD Vocabs SPARQL query templates http://vocab.getty.edu/queries
  • Try to follow the details and advanced steps:
    • Using ULAN (Union List of Artist Names) (hands-on-sparql-ULAN.pdf)
    • Using AAT (Art and Architecture Thesaurus) (hands-on-microthesauri-from-AAT.pdf)
    • An example of using TGN through three services: TGN website, API, and SPARQL endpoint (PDF)
• Instruction: generating SPARQL query through a template & querying DBpedia
  • (hands-on-sparql-dbpedia.pdf)
    

2. Entity extraction -- Digging into unstructured data

• Instruction (hands-on-EntityExtraction.pdf) of entity extraction from text
• Tool websites: (the free version of the tools)
  • Open Calais
  • Cogito Intelligence
  • OpenRefine (three demo videos for explore, clean, reconcile and match Data)

WHERE -- to learn more after the workshop

• Presentation 3:00 pm. - 3:40 pm
  • Introducing Competency Index for Linked Data (pdf)
    
    
• Websites referred:
  • LD4PE website http://explore.dublincore.net/
  • LD Competency Index with mapped learning resources
  • LD Competency Index editing and translating at Github
    

References

Developed by Marcia L. Zeng, 2018-04-22 for research and educational purposes.