Dmitry Mouromtsev. eLearning System. Openedu.ifmo.ru

Post on 22-May-2015

249 views 1 download

Tags:

Transcript of Dmitry Mouromtsev. eLearning System. Openedu.ifmo.ru

1

openedu.ifmo.ruDmitry Mouromtsev

2

Viewing Course Structure

Elements of course ontology

3

Viewing a List of Lectures

All data are retrieved using SPARQL

4

Lectures Are Accompanied By Videos With Tags

Smart tags are embedded in video lectures

5

Knowledge Tests For Students

Tests are semantically linked with keywords of lectures

6

List of Literature Sources

Tutorials are represented in BIBO format

7

Terms With External Sources of Information

Keywords are linked to DBpedia

8

Ontology Visualization of Training Course

Interactive graph represents SPARQL queries

9

Feedback Tool

An instrument for communication between students and lecturers

10

Knowledge Base of Course Ontologies

Build on Information Workbench

11

Viewing Information About Course (html)

Wiki-view of course ontology

12

Viewing Information About Course (table)

Ontology editor

13

Viewing Information About Terms (html)

Data associated with a keyword

14

List of References

Books dataset (BIBO) collected from heterogeneous sources

15

SPARQL endpoint

API of the system

16

Automated errors detection

select distinct ?x ?p ?q where { ?x ?p ?q . FILTER NOT EXISTS { ?q rdf:type ?type . } . FILTER(isURI(?q)) . {?x rdf:type learningRu:Term} UNION {?x rdf:type learningRu:Lecture} UNION {?x rdf:type learningRu:Module} UNION {?x rdf:type learningRu:Cource} . FILTER ( ?p != rdf:type) }

17

d.muromtsev@gmail.com

openedu.ifmo.ru