the rhizomik initiative playing with un-fao data
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The Rhizomik InitiativePlaying with UN-FAO Data
Roberto García
HCI & Data Integration Research Group
Universitat de Lleida, Spain
Table of Contents• Consolidation
– Semantic data consolidation and disambiguation
• Rhizomer– Linked Data publishing and interaction
Consolidation• Collaboration with Sindice group at DERI
Galway • Sindice: a Semantic Web index and search engine
• Consolidate semantic data:– Integration, disambiguation,…
• Make Sindice return entities instead of documents
Consolidation• Demo scenario:
• DBLP same URI for different authors if same name-surname– Approach: each author his/her co-authorship net
Rhizomer• Linked Data publishing
and interaction platform
• Rhizomer Server:– Java, REST API
– Stores: Jena, Virtuoso,…
– DESCRIBE (CBD+labels)
MetadataStore
RhizomerServer
GET
PUT
POST
DEL
search new edit delete
RhizomerClient
Experiment• Start with AGRIS RDF data (824 articles file)• Point URIs to where Rhizomer is installed
– E.g.: http://rhizomik.net/agris/...– URIs end with a slash
• Add labels for usability: – CONSTRUCT
{ ?r <http://www.w3.org/2000/01/rdf-schema#label> ?l }WHERE { ?r a ?t. FILTER( ?t=<http://purl.org/ontology/bibo/Article> || ?t=<http://xmlns.com/foaf/0.1/Person> || ?t=<http://xmlns.com/foaf/0.1/Agent> || ?t=<http://purl.org/ontology/bibo/Journal> ) OPTIONAL { ?r <http://purl.org/dc/elements/1.1/title> ?l } OPTIONAL { ?r <http://xmlns.com/foaf/0.1/name> ?l } }
Experiment• dc:subject points to AGROVOC resources (not literals)• Load ontologies/schemas (FOAF, BIBO, DC, RDF,
RDFS,…)• Load AGROVOC SKOS• …
Rhizomer Client• AJAX
• Browsing:– RDF/XML ─XSLT HTML+RDFa
• Editing:– RDF/XML ─XSLT FORM ─Javascript RDF
– Autocomplete • from actual data and ontologies
Rhizomer Client• Not just show data, make it more usable:
– Information Architecture Componentes:• Navigation Menus
– Automatic from data and ontologies
• Facets– Automatic, properties and actual values
– Interaction Services framework• Timeline, Map, Player, Graph, Plot,…
Conclusions• Explicit licensing terms
• Motivation: make AGRIS URIs for publications the HUB for LOD about those publications– …URI marketing
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