A Review Paper on ONDINE+
نویسنده
چکیده
In this review paper of ONDINE system which allows the loading and the querying of a data warehouse opened on the Web, guided by an Ontological and Terminological Resource (OTR). The data warehouse, composed of data tables extracted from Web documents, has been built to supplement already existing local data sources. First, we present the main steps of our semiautomatic method to annotate data tables driven by an OTR. In this method is an XML/RDF data warehouse composed of XML documents representing data tables with their fuzzy RDF annotations, Flexible querying system which allows the local data sources and the data warehouse to be simultaneously and uniformly queried, using the OTR. Some system relies on SPARQL and allows approximate answers to be retrieved by comparing preferences expressed as fuzzy sets with fuzzy RDF annotations. Keywords— Knowledge and data engineering tools and techniques, XML/XSL/RDF, “fuzzy,” and probabilistic reasoning, representations, data structures, and transforms, knowledge modelling
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