dc.contributor
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Serveis i Sistemes d'Informació
dc.contributor
Universitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.contributor
Universitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural
dc.contributor.author
Ardalan, Zagros
dc.contributor.author
Martín Escofet, Carme
dc.contributor.author
Padró, Lluís
dc.identifier
Ardalan, Z., Martin, C., Padro, L. AETAS: A system for semanticizing temporal expressions from unstructured contents. A: International Symposium on Spatial and Temporal Databases. "Advances in spatial and temporal databases: 14th International Symposium, SSTD 2015, Hong Kong, China, August 26-28, 2015: proceedings". Hong Kong: Springer, 2015, p. 478-483.
dc.identifier
978-3-319-22363-6
dc.identifier
https://hdl.handle.net/2117/78690
dc.identifier
10.1007/978-3-319-22363-6
dc.description.abstract
AETAS is an online tool for converting text into RDF linked data with resolution of temporal expressions. AETAS follows fully SOA architecture and is accessible via web-service. It implements a novel approach for semantic representation and linked temporal graphs built from natural language sentences. In this paper, we present a demonstration tool, which combines the normalized temporal expressions with linguistic semantic frames and creates a linked RDF graph where time is defined as an individual dimension. The tool is based on SUTime which identifies and normalizes the temporal expressions and on FreeLing, a linguistic processor which extracts the semantics of sentences. The output of AETAS is a set of time-enriched triples that can be stored in a RDF database for later t-SPARQL querying.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
http://link.springer.com/chapter/10.1007/978-3-319-22363-6_26
dc.rights
Restricted access - publisher's policy
dc.subject
Àrees temàtiques de la UPC::Informàtica::Sistemes d'informació::Emmagatzematge i recuperació de la informació
dc.subject
Computational linguistics
dc.subject
Information retrieval
dc.subject
Lingüística computacional
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Recuperació de la informació
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Mineria de dades
dc.title
AETAS: A system for semanticizing temporal expressions from unstructured contents
dc.type
Conference report
