We present Optima, a state of the art general purpose tool for ontology alignment that automatically identifies and matches relevant concepts between ontologies. The tool is supp...
A huge amount of data and metadata emerges from Web 2.0 applications which have transformed the Web to a mass social interaction and collaboration medium. Collaborative Tagging Sy...
Eirini Giannakidou, Ioannis Kompatsiaris, Athena V...
Gesture interfaces are needed for natural intuitive communication with machine devices. Hand gesture intuitiveness is the cognitive association between a command or intent, and it...
Recognizing that information from different sources refers to the same (real world) entity is a crucial challenge in instance-level information integration, as it is a pre-requisi...
Paolo Bouquet, Heiko Stoermer, Claudia Nieder&eacu...
While semantic search technologies have been proven to work well in specific domains, they still have to confront two main challenges to scale up to the Web in its entirety. In th...
Geo-temporal criteria are important for filtering, grouping and prioritizing information resources. This presents techniques for extracting semantic geo-temporal information from ...
Where are all the semantic Web services today? In this paper, we report on quantitative results of searching the surface Web and the prominent citeseer archive as one element of t...