Online Learning and Linked Data: An Introduction
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This document provides an overview of online learning and linked data. It discusses linked data principles, massive open online courses (MOOCs), and using iBooks and SocialLearn for education. Linked data follows principles of using URIs, HTTP URIs, providing useful RDF information, and linking to related resources. MOOCs allow large-scale open access online courses from top universities. iBooks and SocialLearn demonstrate using new media and Web 2.0 technologies to support open educational resources and learning paths.
Online Learning and Linked Data: An Introduction
- 1. Online Learning and Linked Data An Introduction John Domingue with Mathieu d‘Aquin, Stefan Dietze and Alexander Mikroyannidis Tutorial at WWW 2013
- 2. Overall Agenda • Introduction – John Domingue • Best Practices for Linked Data Education – Alexander Mikroyannidis • Using Linked Data in Education – Opportunities, Challenges, Examples – Stefan Dietze • Interactive Session 2
- 3. Agenda • Linked Data • Massive Open Online Courses (MOOCs) • iBooks and SocialLearn • Summary 3
- 6. TheWeb: Evolution 6 Web of Documents Web of Data "Documents" Hyperlinks Typed Links "Things"
- 7. Linked Data Principles 1. Use URIs as names for things. 2. Use HTTP URIs so that people can look up those names. 3. When someone looks up a URI, provide useful RDF information. 4. Include RDF statements that link to other URIs so that they can discover related things. Tim Berners-Lee, http://www.w3.org/DesignIssues/LinkedData.html, 2006 Slide curtesy of Chris Bizer Set of best practices for publishing structured data on the Web in accordance with the general architecture of the Web.
- 8. Semantics on theWeb 8 Semantic Web Stack Berners-Lee (2006)
- 9. Semantics on theWeb 9 Semantic Web Stack Berners-Lee (2006) RDF – Resource Description Framework
- 10. Semantics on theWeb 10 RDF – Resource Description Framework • RDF is the basis layer of the Semantic Web stack ‘layer cake’. • Basic building block: RDF triple. • Subject – a resource, which may be identified with a URI. • Predicate – a URI-identified reused specification of the relationship. • Object – a resource or literal to which the subject is related.
- 11. Semantics on theWeb 11 RDF Graphs • Every set of RDF assertions can then be drawn and manipulated as a (labelled directed) graph: • Resources – the subjects and objects are nodes of the graph. • Predicates – each predicate use becomes a label for an arc, connecting the subject to the object. Subject Object Predicate
- 12. Describing Data 12 Vocabularies • Collections of defined relationships and classes of resources. • Classes group together similar resources. • Terms from well-known vocabularies should be reused wherever possible. • New terms should be define only if you can not find required terms in existing vocabularies.
- 13. Describing Data 13 Vocabularies A set of well-known vocabularies has evolved in the Semantic Web community. Some of them are: Vocabulary Description Classes and Relationships Friend-of-a-Friend (FOAF) Vocabulary for describing people. foaf:Person, foaf:Agent, foaf:name, foaf:knows, foaf:member Dublin Core (DC) Defines general metadata attributes. dc:FileFormat, dc:MediaType, dc:creator, dc:description Semantically-Interlinked Online Communities (SIOC) Vocabulary for representing online communities. sioc:Community, sioc:Forum, sioc:Post, sioc:follows, sioc:topic Music Ontology (MO) Provides terms for describing artists, albums and tracks. mo:MusicArtist, mo:MusicGroup, mo:Signal, mo:member, mo:record Simple Knowledge Organization System (SKOS) Vocabulary for representing taxonomies and loosely structured knowledge. skos:Concept, skos:inScheme, skos:definition, skos:example
- 15. MASSIVE OPEN ONLINE COURSES (MOOCS) AND OPEN EDUCATIONAL RESOURCES (OERS) 15
- 16. MOOC • Large scale participation • Open access – Resources and tuition are freely available 16
- 18. Coursera 18 • Started in Stanford in April 2012 • Now has 69 partner universities • 3.2 Million Users • Courses in: engineering, humanities, medicine, biology, social sciences, mathematics, business, computer science • Assignments are peer-graded
- 19. edX 19 • Founded by MIT and Harvard in April 2012 • Developing an open source learning platform • Offers 15 courses from MIT, Harvard and Berkely • Additional universities to be added in 2014
- 20. Udacity 20 • Started in 2011 as an offshoot of Stanford Courses – 160,000 enrolled in Introduction to Artificial Intelligence course • Announced in 2012 • Now has 24 Courses • Partnership with San Jose State University announced in January 2013 • Certificate at end for free • Exam from Pearson VUE for $89
- 21. FutureLearn • Started in January 2013 by The Open University • Developing a MOOC platform • Currently has British Library, British Council, British Museum and 17 UK Universities as partners 21
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- 26. OU iTunes U Stats • Open University on iTunes U was launched on 3rd June 2008 • Now 79 iTunes U Courses • 61,974,200 downloads • Over 8,402,400 visitors downloaded files • Currently averaging 303,000 downloads a week • 434 collections containing 3,422 tracks (1,630 audio, 1,792 video) • 423 OpenLearn study units as eBooks (ePub), representing over 5,000 hours of study • Currently delivering an average of 6 TB of data a week
- 27. SocialLearn
- 28. Learning Paths
- 29. Summary • Linked Data – Web of Data – 5 principles – Subject, Relation, Object • Massive Open Online Courses (MOOCs) – Possible re-configuration of higher education • iBooks and SocialLearn – Use of new media and Web 2.0 to support learning 29
- 30. THANKS 30