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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.
CitationArdalan, 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.
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