Demo session @ ESWC2010 - http://dbrec.net

1. Hey! Ho! Let’s go!
Explanatory music
recommendations with dbrec
Alexandre Passant, Stefan Decker - DERI, NUI Galway
Demo Session @ ESWC2010
1st June 2010 @ Heraklion, Crete
Tuesday 1 June 2010

2. If you like X ...
Tuesday 1 June 2010

3. Semantic Distance
Tuesday 1 June 2010

4. Does it help ?
Tuesday 1 June 2010

5. Linked Data
Tuesday 1 June 2010

6. Linked Data
e:l1
e:r1 e:l1 e:r2
e:l2
e:l2 e:l3 e:l3
e:r3 e:r4
Tuesday 1 June 2010

7. G = (R, L, I)
e:l1
e:r1 e:l1 e:r2
• R = {r , r , ..., r }
1 2 n
e:l2
• L = {l , l , ..., l }
1 2 n e:l2 e:l3 e:l3
• I = {i , i , ..., i }
1 2 n
e:r3 e:r4
Tuesday 1 June 2010

8. Linked Data Semantic
Distance (LDSD)
Tuesday 1 June 2010

9. e:l1 e:l1
e:r1 e:l1 e:r2 e:r1 e:l1 e:r2
e:l2 e:l2
e:l2 e:l3 e:l3 e:l2 e:l3 e:l3
e:r3 e:r4 e:r3 e:r4
e:l1 e:l1
e:r1 e:l1 e:r2 e:r1 e:l1 e:r2
e:l2 e:l2
e:l2 e:l3 e:l3 e:l2 e:l3 e:l3
e:r3 e:r4 e:r3 e:r4
Tuesday 1 June 2010

10. Weighting the links
Tuesday 1 June 2010

11. e:l1
e:r1 e:l1 e:r2
e:l2
e:l2 e:l3 e:l3
e:r3 e:r4
Tuesday 1 June 2010

12. LDSD(ra, rb)
Tuesday 1 June 2010

13. http://dbrec.net
Tuesday 1 June 2010

14. dbrec
• A self-explanatory recommendation system
and mash-up for all artists and bands from
DBpedia (39.000+ resources,
dbp:MusicalArtist + dbp:Band),
modelling the results using the LDSD
ontology and RDFa to enable data reuse
Tuesday 1 June 2010

15. Tuesday 1 June 2010

16. Ontology
Tuesday 1 June 2010

17. Architecture
(2) Dataset reducing
(1) Dataset (3) LDSD (4) User
identification computation interface
RDF Data RDF Data
Tuesday 1 June 2010

18. SW technologies
• Source data is RDF data from DBpedia
• LDSD is computed with SPARQL
• Results are modelled using the LDSD
ontology
• User interface is built with SPARQL and
embeds RDFa
Tuesday 1 June 2010

19. Demo
Tuesday 1 June 2010

20. Tuesday 1 June 2010

21. Contact:
alexandre.passant@deri.org - http://apassant.net - @terraces
Acknowledgements:
Science Foundation Ireland - SFI/08/CE/I1380 (Lion 2)
References:
AIII Spring Symposium 2010 - LinkedAI Symposium
ESWC2010 - Demo Session
Tuesday 1 June 2010

22. Pictures credits
• http://flickr.com/photos/iskanderstruck/248786430/ by iskanderbenamor
• http://www.flickr.com/photos/loungerie/2196866243/ by loungerie
• http://richard.cyganiak.de/2007/10/lod/ by Richard Cyganiak + Anja Jentzsch
• http://flickr.com/photos/kieranmcglone/2369518260/ by kieranmcglone
• http://www.flickr.com/photos/fensterbme/136098539/ by fensterbme
• http://www.flickr.com/photos/homer4k/461407380/ by homer4k
• http://www.flickr.com/photos/yumlog2/20896759/ by yuki*
• http://flickr.com/photos/8049973@N03/2656140464/ by wolf.tone
Tuesday 1 June 2010