We present a weakly supervised approach to automatic Ontology Population from text and compare it with other two unsupervised approaches. In our experiments we populate a part of ...
Supporting semantic queries in relational databases is essential to many advanced applications. Recently, with the increasing use of ontology in various applications, the need for...
PowerMagpie is a tool that brings semantic interpretation to classical web pages by dynamically--i.e. during browsing--selecting and making use of a wide range of online available ...
Laurian Gridinoc, Marta Sabou, Mathieu d'Aquin, Ma...
Information retrieval systems have to deal with uncertain knowledge and query results should reflect this uncertainty in some manner. However, Semantic Web ontologies are based on...
Abstract. We consider the setting of ontological database access, where an Abox is given in form of a relational database D and where a Boolean conjunctive query q has to be evalua...