Web Alliance forRegreening in Africa (W4RA)      Frank van Harmelen | Victor de BoerWith input from Christophe Guéret, Han...
Regreening        • Knowledge sharing issues             – Distances between rural communities in Sahel             – Infr...
Aim: integrate Web with mobile         access & voice services • service development toolbox, field deployment   in Africa...
Field pilots in Mali        Web-mobile-voice services   •   Field pilot use cases Mali (to start end 2011):         1.    ...
Web in Society:      the big picture R&D questions   • Q1 [immediate]: Can the Web (be made to)     mean something for kno...
Linked Data without the         Web
Not having the Web != Not sharing data       Market prices      Educational content   They would benefit from Linked Data...
1) think de-centralised            Instead: chunks of data            served by different peers
2) think small, think micro-serversNot designed for developing countries   Designed for developing countries        Multi-...
3) think vocalBecause not everyone can read and write
SemanticXO   Deploy Linked Data on the XO from OLPC
Voice-based access to LinkedOpen Market Data in the Sahel
A Bit of Context:RadioMarché
Digital Divide        Source: ITU Digital Access Index, Worlds First Global ICT Ranking
Voice-based services in a rural African context• Integrate local community radios and mobile ICT for  knowledge sharing• B...
Use Case 1             Onno Wassenaar
Context: Web For Regreening in Africa (W4RA)
RadioMarche                                       Radio broadcast                                           French        ...
Data management           RadioMarche.com
Audio communiqué• Audio communiqué generated by  concatenating prerecorded phrases  – Each radio host uses own voice (!)• ...
Voice XML<?xml version="1.0" encoding="ISO-8859-1"?><vxml version="2.0" lang="en"><form> <prompt bargein="false">  Welcome...
Linked Data Prototype
An Outrageous Idea
Linked Data Cloud                                                                  VoiceXML-to-                           ...
http://purl.org/collections/w4ra/radiomarche/offering_68              Browser                  Application                ...
*                                   <VoiceXML>                                   PHP to SPARQL                            ...
DBpedia                               GeoNames                                Agrovoc                                     ...
Questions?
ICT4D course
w4ra.few.vu.nl     semweb4u.wordpress.comworldwidesemanticweb.wordpress.com
The Web for Warm Countries
The Web for Warm Countries
The Web for Warm Countries
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The Web for Warm Countries

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Joint talk given during the BrainSTORM session at VUA by Frank van Harmelen and Victor de Boer, with input from Christophe Gueret, Hans Akkermans, Anna Bon.

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The Web for Warm Countries

  1. 1. Web Alliance forRegreening in Africa (W4RA) Frank van Harmelen | Victor de BoerWith input from Christophe Guéret, Hans Akkermans, Anna Bon
  2. 2. Regreening • Knowledge sharing issues – Distances between rural communities in Sahel – Infrastructure and access • Commonly: no electricity, no computer, no internet • But: mobile and radio – Lack of relevant content • Literacy and education – LanguagesHans Akkermans e-Biz Innovation course, 22 Sep 2011 2
  3. 3. Aim: integrate Web with mobile access & voice services • service development toolbox, field deployment in Africa & make a sustainable business out of itHans Akkermans e-Biz Innovation course, 22 Sep 2011 3
  4. 4. Field pilots in Mali Web-mobile-voice services • Field pilot use cases Mali (to start end 2011): 1. Web-based market info by mobile voice service to radio stations for broadcast 2. m-event field organizer facilities Web-mobile-voiceHans Akkermans e-Biz Innovation course, 22 Sep 2011 4
  5. 5. Web in Society: the big picture R&D questions • Q1 [immediate]: Can the Web (be made to) mean something for knowledge sharing even under very constraining conditions? – No internet, no computer, no electricity – Multitude of languages, levels of literacy • Q2 [Web future]: Can we have a Web of Speech? – After all, human communication: talking >> writingHans Akkermans e-Biz Innovation course, 22 Sep 2011 5
  6. 6. Linked Data without the Web
  7. 7. Not having the Web != Not sharing data Market prices Educational content They would benefit from Linked Data  but they can not use it! And we dont want a new divide, do we?
  8. 8. 1) think de-centralised Instead: chunks of data served by different peers
  9. 9. 2) think small, think micro-serversNot designed for developing countries Designed for developing countries Multi-core fast 433Mhz x86 CPU CPU 256MB of RAM Gigabytes of RAM 1GB of flash Terabytes of disk storage Can be solar powered Dust proof Affordable
  10. 10. 3) think vocalBecause not everyone can read and write
  11. 11. SemanticXO Deploy Linked Data on the XO from OLPC
  12. 12. Voice-based access to LinkedOpen Market Data in the Sahel
  13. 13. A Bit of Context:RadioMarché
  14. 14. Digital Divide Source: ITU Digital Access Index, Worlds First Global ICT Ranking
  15. 15. Voice-based services in a rural African context• Integrate local community radios and mobile ICT for knowledge sharing• Better support and integrate local languages in voice-based services – Development of appropriate speech elements (text-to- speech and Speech recognition)• Develop a free and open source toolbox for local developers.• Investigate self-sustainability – Develop appropriate business models – In collaboration with local communities.
  16. 16. Use Case 1 Onno Wassenaar
  17. 17. Context: Web For Regreening in Africa (W4RA)
  18. 18. RadioMarche Radio broadcast French Radio 1Market info Bambara Sahel Eco aggregates market info French Radio 2 Bomu
  19. 19. Data management RadioMarche.com
  20. 20. Audio communiqué• Audio communiqué generated by concatenating prerecorded phrases – Each radio host uses own voice (!)• Text-to-speech where possible• Currently only for French• Audio quality is an issue
  21. 21. Voice XML<?xml version="1.0" encoding="ISO-8859-1"?><vxml version="2.0" lang="en"><form> <prompt bargein="false"> Welcome to RadioMarche! <audio src=“audio/communique_1_bambara.wav"/> </prompt> <option dtmf="1" value=“1">Press one for X</option> <option dtmf=“2" value=“2">Press two for Y</option> ...</vxml>
  22. 22. Linked Data Prototype
  23. 23. An Outrageous Idea
  24. 24. Linked Data Cloud VoiceXML-to- SPARQLMarket data Linked market data Voice browser ClioPatria Linked Data server (Voxeo Evolution) Web access Voice access
  25. 25. http://purl.org/collections/w4ra/radiomarche/offering_68 Browser Application @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rm: <http://purl.org/collections/w4ra/radiomarche/> . rm:offering_68 a rm:Offering ; rm:com_number "6" ; rm:contact_address "" ; rm:currency "CFA" ; rm:has_communique rm:communique_4f2918bc6a7af ; rm:has_contact rm:Fidel_Kone ; rm:price "450.00" ; rm:prod_com_id "3" ; rm:prod_name rm:product-Graine_de_nere ; rm:quality "Graine propre" ; rm:quantity "120.00" ; rm:store_id "68" ; rm:ts_date_delivered "2012-02-01 10:54:57" ; rm:ts_date_entered "2012-02-01 10:18:27" ; rm:unit_measure "Kg" ; rm:user_id "6" .
  26. 26. * <VoiceXML> PHP to SPARQL Linked market data +31208080855+990009369996162208 (Skype VOIP)
  27. 27. DBpedia GeoNames Agrovoc Institute ofLinked market data Development Studies LOD Sahel Pluvial Data SemanticXO
  28. 28. Questions?
  29. 29. ICT4D course
  30. 30. w4ra.few.vu.nl semweb4u.wordpress.comworldwidesemanticweb.wordpress.com
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