This slideset introduces the LAK Dataset and Challenge, held at the Learning Analytics & Knowledge (LAK) conference in Leuven, Belgium, April 2013. Further information about the dataset and submissions is available at http://ceur-ws.org/Vol-974/ as well as http://www.solaresearch.org/events/lak/lak-data-challenge/.

1. Motivation
Data on the Web
Some eyecatching opener illustrating growth and or diversity of web data
Learning Analytics and Knowledge (LAK) –
Dataset and Challenge
Stefan Dietze , Eelco Herder (L3S Research Center, DE, @stefandietze)
Mathieu d’Aquin (The Open University, UK)
Hendrik Drachsler (Open Universiteit Nederland, Netherlands)
Davide Taibi (Institute for Educational Technologies CNR, Italy)
Stefan Dietze 09/04/13

2. LAK Data Challenge
in a nutshell
http://www.solaresearch.org/events/lak/lak-data-challenge/
1. Price
iPad, 64 GB
2. Price
iPad, 16 GB
3. Price
iPod, 16 GB
+ additional publicity through
LinkedUp (if actually desired)

3. LAK Challenge – sponsored by LinkedUp
http://www.linkedup-project.eu/
Partners
 EC-funded support action, started in 11/2013
 Three pillars:
 LinkedUp Challenge: open data competition
(over 1.5 years)
[ http://linkedup-challenge.org ]
 Linked Education Data: data & catalog for
large-scale educational Web data
applications
 Evaluation Framework for open data
applications
Stefan Dietze 09/04/13

4. Learning Analytics & Knowledge (LAK) Dataset
Extraction process
 CKAN linkededucation http://www.solaresearch.org/resources/lak-dataset/
 LAK tutorial
 LAK Data
 LAK challenge
 LILE2013 @ www

5. Learning Analytics & Knowledge (LAK) Dataset
 A corpus of metadata and full-text of 331 learning analytics & educational
data mining publications
 Freely, openly available in variety of structured formats
 Open access as well as previously non-public resources
Publication # of papers
Proceedings of the ACM International Conference on Learning Analytics 66
and Knowledge (LAK) (2011-12)
The open access journal Educational Technology & Society special issue 10
on “Learning and Knowledge Analytics”: Educational Technology &
Society (Special Issue on Learning & Knowledge Analytics, edited by
George Siemens & Dragan Gašević), 2012, 15, (3), pp. 1-163. Special permission
from ACM
Proceedings of the International Conference on Educational Data 239
Mining (2008-12)
Journal of Educational Data Mining (2008-12) 16
Stefan Dietze 09/04/13

6. Learning Analytics & Knowledge (LAK) Dataset
Extraction process
Further reading:
Taibi, D., Dietze, S., Fostering Analytics on Learning
Analytics Research: the LAK Dataset, in: CEUR WS
Proceedings Vol. 974, Proceedings of the LAK Data
Challenge, held at LAK2013 – The Third Conference on
Learning Analytics and Knowledge, April 2013., URL:
Stefan Dietze http://ceur-ws.org/Vol-974/lakdatachallenge2013_preface.pdf

7. Learning Analytics & Knowledge (LAK) Dataset
How to access?
http://www.solaresearch.org/resources/lak-dataset/
 Dumps in zipped RDF/XML file format for download from the SoLAR Website
=> [ http://data.linkededucation.org/lak/xml-dump.zip ]
=> [ http://data.linkededucation.org/lak/edm-xml-dump.zip ]
 Dumps in R format
=> [ http://crunch.kmi.open.ac.uk/people/~acooper/data/LAK-Dataset.RData ]
 Linked Data endpoint with a public SPARQL interface providing access to structured RDF metadata according
to LOD principles
=> [ http://data.linkededucation.org/request/lak-conference/sparql?query=... ]
=> Example resource: http://data.linkededucation.org/resource/lak/conference/edm2010/paper/162
Stefan Dietze 09/04/13

8. Learning Analytics & Knowledge (LAK) Dataset
How to access?
Used schemas
Semantic Web Conference ontology
http://data.semanticweb.org/ns/swc/ontology
Linked Education schema
http://data.linkededucation.org/ns/linked-education.rdf

9. LAK Data Challenge
in a nutshell
http://www.solaresearch.org/events/lak/lak-data-challenge/
1. Price
iPad, 64 GB
2. Price
iPad, 16 GB
Objectives:
 Analysis & assessment of the emerging LAK community
(topics, people, citations or connections with other fields) 3. Price
iPod, 16 GB
 Innovative applications to explore, navigate and visualise
the dataset (and/or its correlation with other datasets)
 Usage of the dataset as part of recommender systems + additional publicity through
LinkedUp (if actually desired)

10. LAK Challenge – the many faces of a small dataset
Analysis Exploration & Visualisation
Search & Recommendation Correlation & Enrichment

11. LAK Challenge Submissions (accepted)in a nutshell
authors
4% Brazil
4% Canada
10% 7%
14% France
17%
Germany
17% Italy
Netherlands
21% 3%
Serbia
3%
Spain
United Kingdom
Stefan Dietze 09/04/13

12. Ranking of the LAK Challenge papers
Small-scale version for the evaluation of the LAK data
submission available here:
http://bit.ly/LAK13
Stefan Dietze 17/04/13 12

13. Ranking of the LAK Challenge papers
http://bit.ly/L
AK13
Please use for
submission ID
the plain
number from
the CEUR
proceedings.
Stefan Dietze 17/04/13 13

14. LAK Challenge Proceedings, CEUR Vol-974 a nutshell
http://ceur-ws.org/Vol-974
Video presentation: http://youtu.be/Y3PHgjAFd0o
Video presentation
Video presentation

15. Thank you!
Contact
 http://purl.org/dietze | @stefandietze
See also (general)
 http://linkedup-project.eu
 http://linkedup-challenge.org
http://linkededucation.org
 http://lile2013.linkededucation.org
 http://linkeduniversities.org
See also (data)
 http://datahub.io/group/linked-education
 http://data.linkededucation.org/linkedup/catalog/
 http://www.solaresearch.org/resources/lak-dataset/
Stefan Dietze 09/04/13