Semantic Technologies for Linked Open Data at the STLab Aldo Gangemi*, Andrea Nuzzolese, Valentina Presutti*, Diego Reforgiato, Alberto Salvati*, Eva Blomqvist, Enrico Daga*, Francesco Draicchio, Paolo Ciancarini°, Sergio Consoli, Silvio Peroni°, Daria Spampinato* CNR Semantic Technology Lab, ISTC-CNR, Rome/Catania [email protected] ; *[email protected] ; °[email protected]http://stlab.istc.cnr.it http://wit.istc.cnr.it/stlab-tools http://data.cnr.it
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Semantic Technologies for Linked Open Data at the STLab
Aldo Gangemi*, Andrea Nuzzolese, Valentina Presutti*, Diego Reforgiato, Alberto Salvati*,
Eva Blomqvist, Enrico Daga*, Francesco Draicchio, Paolo Ciancarini°, Sergio Consoli, Silvio Peroni°, Daria Spampinato*
Aldo Gangemi Valentina Presutti Daria Spampinato Andrea Nuzzolese Diego Reforgiato Stefania Capotosti Sergio Consoli Alessio Iabichella
• STLab@SI Alberto Salvati
Gianluca Troiani
• STLab Associates
Paolo Ciancarini (UniBo)
Malvina Nissim
(UniBo)
Massi Ciaram
ita (Google)
Alfio Gliozzo (IBM)
Eva Blomqvist
(Un. Linköping)
Enrico Daga (Open University
)
Alessandro Adamou (Open Un.)
Francesco Draicchio (UniBo)
Francesco Antinucci (CNR)
• STLab (Semantic Technology Lab) è un laboratorio dell’ISTC (Istituto di Scienze e Tecnologie Cognitive) del CNR, con sedi a Roma e Catania, attivo anche a Bologna e Parigi
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Outline
•The Linked Open Data (LOD) of CNR !
•The Semantic Scout !
•Machine reading for the Semantic Web !
•Knowledge pattern discovery and usage
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A practical experience: data.cnr.it and the Semantic Scout
Joint work by STLab and the Information Systems unit of CNR Thanks to
Alberto Salvati, Enrico Daga, Gianluca Troiani, Andrea Pompili, Angelo Olivieri
Past collaboration with Claudio Baldassarre (UN-FAO) and Alfio Gliozzo (now IBM-Watson)
Linked Open Data in Public Administrations
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Objective and results• Objectives
• Publishing CNR data as LOD
• Matching the research demand to the research supply in the largest research institution (CNR) in Italy
!
• Results • data.cnr.it
• The CNR ontology network and data available as LOD
• Semantic interoperability between heterogeneous data sources
• The Semantic Scout - http://bit.ly/semanticscout • Expert finding based on competence
• Monitoring funding and evolution of different research areas and units
Apache Stanbol• A set of reusable components for semantic content
management • To extend traditional content management systems with semantic services
accessible as HTTP REST services
• Stanbol is the main software result of the EU IP IKS !
• Our contribution: the Knowledge Representation and Reasoning layer of Stanbol • Services used to define and manipulate semantic data models in CMS, i.e.,
Ontology Network Manager component
• Services able to retrieve additional semantic information about content, i.e., Reaoners and Rules components
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Stanbol in a nutshell
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NER and linking to LOD datasets
• The Black Hand might not have decided to barbarously assassinate Franz Ferdinand after he arrived in Sarajevo on June 28th, 1914
qualities
modality
negation
type induction WSD taxonomy induction
semantic roles
NER
events
dates
The <span xmlns:dbo="http://dbpedia.org/ontology/" xmlns:dbr="http://dbpedia.org/resource/" about="dbr:Black_Hand_(Serbia)" typeof=”dbo:Agent">Black Hand</span> might not have decided to barbarously assassinate <span xmlns:schemaorg="http://schema.org/" xmlns:dbr="http://dbpedia.org/resource/" about="dbr:Archduke_Franz_Ferdinand_of_Austria" typeof=”schemaorg:Person”>Franz Ferdinand</span> after he arrived in <span xmlns:schemaorg="http://schema.org/" xmlns:dbr="http://dbpedia.org/resource/" about="dbr:Sarajevo” typeof=”schemaorg:City”>Sarajevo</span> on June 28th, 1914