deboer ld4 iati_knowescape
DESCRIPTION
Talk given at KNOWeSCAPE workshop colocated with OKCon 2013 in Genva. The work and the slides are by Kasper Brandt, MSc.TRANSCRIPT
Linked Data for
Kasper Brandt Victor de Boer
KnowEscape workshop 19-9-2013
Introduction - IATI
“IATI is a voluntary, multi-stakeholder initiative that seeks to improve the transparency of aid in order to increase its effectiveness in tackling poverty.”
Introduction - IATI users
• Funders o Where is the money of my organisation spent?o Where do other organisations spend their money?
• Governmentso How much money is spent in my country?o What are the budgets or planned disbursements for my country?
• Localso What organisations are working in my area?o What projects are currently going on in my area?
• Publico Where is my tax money going?o What are the organisations doing with my donations?
Introduction - IATI modelActivities
Organisations
Introduction - IATI model
Codelists
• Aid Type
• Country
• Currency
• Geographical precision
• Language
• Location type
• Organisation role
• Policy marker
• Region
• Sector
• Transaction type
• Vocabulary
Introduction - Linked Data
1. HTTP URIs to name things
2. Create meaningful links to other datasets
3. No more data silos
4. Standardized vocabularies and ontologies
5. Query datasets through SPARQL
Introduction - Why IATI Linked Data?
1. Reusable vocabularieso Extract information automatically from the IATI data by
making use of applications which are able to interpret standard vocabularies
2. Enrich IATI datao Link IATI data to external datasets in order to enrich the
IATI data with additional information or metadata.
3. Donors can use their own Linked Data specification.o @Linked-data-uri attribute already exists in the IATI
model.
Linked Data model
1. How can the IATI model best be converted to a Linked Data model?a. How can we create the Linked Data model in a
structured manner?b. How can we keep track of provenance on the
IATI data?c. What standard vocabularies can be reused for
enriching the Linked Data model?
Model and links based on requirements elicitated from experts
Iterative Requirements Engineering Process Model by Loucopoulos and Karakostas
Linked Data model - Example
iati:activity/GB-CHC-285776-CHA024iati:activity-transactioniati:activity/GB-CHC-285776-CHA024/transaction/42737 .
iati:activity/GB-CHC-285776-CHA024/transaction/42737iati:transaction-tied-statusiati:codelist/TiedStatus/5 .
Linked Data model - Provenance
• On file levelo Not on activity level
• A named graph per file, e.g.:iati:graph/dataset/Worldbank
Linked Data model - Vocabularies
Linked Data model - Triple store
• Triples loaded into a ClioPatria triple store:o http://eculture.cs.vu.nl:1987/iati/homeo Sparql endpointo Dereferenceable URIs
(http://purl.org/collections/iati/codelist/Sector/11420)
• Total number of triples: 36,629,017
• Total number of named graphs: 4,790o Largest activities graph is UNOPS containing
1,231,896 triples
• Takes approximately 30 minutes to load all data into the triple store.
RDFLibPython RDF/Turtle
Linking datasets - Approach1. In total, how much does a given country receive in aid?
2. A comparative index of aid versus the Human Development Index.
3. What is the geographic location of a project? How much aid went to a given province, constituency or village?o Is the aid spent in places where the need is highest? Is it well
distributed across the country?o Can we attribute sub-national breakdowns for aid so we can see how
much goes to different parts of recipient countries?
4. How does violent conflict in recipient countries affect aid activities?
5. How does aid spending as registered in the IATI standard compare to World Bank indicators?
Linking datasets - Evaluation
Linking Data applications - Approach1. In total, how much does a given country receive in aid?
2. A comparative index of aid versus the Human Development Index.
3. What is the geographic location of a project? How much aid went to a given province, constituency or village?o Is the aid spent in places where the need is highest? Is it well
distributed across the country?o Can we attribute sub-national breakdowns for aid so we can see how
much goes to different parts of recipient countries?
4. How does violent conflict in recipient countries affect aid activities?
5. How does aid spending as registered in the IATI standard compare to World Bank indicators?
http://iati2lod.appspot.com/1. In total, how much does a given country receive in aid?
2. A comparative index of aid versus the Human Development Index.
http://iati2lod.appspot.com/
http://iati2lod.appspot.com/4. How does violent conflict in recipient countries affect aid activities?
5. How does aid spending as registered in the IATI standard compare to World Bank indicators?
Questions?
http://iati2lod.appspot.com/
http://eculture.cs.vu.nl:1987/iati/http://eculture.cs.vu.nl:1987/iati/sparql
http://purl.org/collections/iati/codelist/Sector/11420
https://github.com/KasperBrandt/IATI2LOD