The Web for Warm Countries

Web Alliance forRegreening in Africa (W4RA) Frank van Harmelen | Victor de BoerWith input from Christophe Guéret, Hans Akkermans, Anna Bon

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

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

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

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

Linked Data without the Web

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?

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-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

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• 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.

Use Case 1 Onno Wassenaar

Context: Web For Regreening in Africa (W4RA)

RadioMarche Radio broadcast French Radio 1Market info Bambara Sahel Eco aggregates market info French Radio 2 Bomu

Data management RadioMarche.com

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

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>

Linked Data Prototype

An Outrageous Idea

Linked Data Cloud VoiceXML-to- SPARQLMarket data Linked market data Voice browser ClioPatria Linked Data server (Voxeo Evolution) Web access Voice access

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" .

* <VoiceXML> PHP to SPARQL Linked market data +31208080855+990009369996162208 (Skype VOIP)

DBpedia GeoNames Agrovoc Institute ofLinked market data Development Studies LOD Sahel Pluvial Data SemanticXO

Questions?

ICT4D course

w4ra.few.vu.nl semweb4u.wordpress.comworldwidesemanticweb.wordpress.com

http://w4ra.wordpress.com	44
http://w4ra.few.vu.nl	18
http://www.few.vu.nl	5
http://elearning.tadelformacion.com	2

The Web for Warm Countries

by Victor de Boer

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