reaction power: political ontology for web entity retrieval sílvio moreira [email protected]
Post on 20-Dec-2015
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TRANSCRIPT
REAC
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POWER introduction
POWER is an ontology that formalizes the domain knowledge defining political landscape
Main political actors (politicians and political organizations)
Roles Relationships Interactions
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POWER introduction
Create a resource to recognize and resolve references to political entities in text
Opinion mining Entity tracking and ranking Expert finding ...
Could serve other purposes, such as studies in political science or sociology
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POWER overview
The ontology is focused in describing Politicians Political Institutions in different levels of
authority (International, National, Regional,...) Political Associations Political Affiliations and Endorsements Elections Mandates
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POWER overview
The ontology should be able to answer questions such as:
Who is Sócrates? Who is known as Pinócrates? Who were the Government ministers of Portugal in 2000? Who were the leaders of the main political parties in
1995? Who are the members of the list endorsed by the
Portuguese Socialist Party for the last parliamentary elections?
In which mandates has served José Sócrates?
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POWER conceptual model
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POWER conceptual model (elections)
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POWER development
The ontology uses terms from several existing vocabularies
OWL 2 FOAF DC
Additional terms were created to describe domain specific kwnoledge
Assert the provenance of the data Metadata RDF Reification
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POWER architecture
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POWER examples
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POWER examples
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POWER bootstrap
Bootstrap script Creates instances of the political parties
From: http://pesquisa.bn.pt/PartidosPoliticos/index.html Creates instances to represent the 2011 presidential elections
From: http://presidenciais.com Script that scraps data from government site
From: http://www.governo.gov.pt Generates code to insert statements about the politicians
and the mandates in the Portuguese constitutional governments between the years of 1976 and 2009
Injects python code in the bootstrap script Deployment of the ontology with an initial set of assertions that will
allow the validation of the proposed model
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POWER bootstrap
The bootstrap resulted in the creation of 587 Politicians 17 (editions) of Political Institutions 16 Political Associations 900 Mandates 1 Elections 6 Candidate Lists
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POWER future work
Enrichement population of the ontology using text-mining software
Deployment release to the general public via SPARQL endpoint
and web user interface
Connection linking to GeoNet-PT and
alignment with the Freebase ontologies