Selecting appropriate learning services for a learner from a large number of heterogeneous knowledge sources is a complex and challenging task. This article illustrates and discusses how Semantic Web technologies such as RDF and ontology can be applied to e-learning systems to help the learner in selecting an appropriate learning course or retrieving relevant information. It presents the main f...

Contrary to existing heterogeneous data integration systems which need to be fully integrated before using, a Dataspace Support Platform is a self-sustained system which automatically provides for the user its best endeavor results regardless of how integrated its sources are. Therefore, a Dataspace Support Platform needs to support uncertainty in mediated schema and in schema mappings. This pa...

This paper discusses some of the challenges in building a robot that is supposed to autonomously navigate in an urban environment by asking pedestrians for route directions. We present a novel Wizard-of-Oz setup for collecting route direction dialogues, and a novel approach for datadriven semantic interpretation of route descriptions into route graphs. The results indicate that it is indeed pos...

This project report details work carried out in collaboration between the University of Southampton and the Korea Institute of Science and Technology Information, focussing on an RDF dataset of academic authors and publications. Activities included the conversion of the dataset to produce Linked Data, the identification of co-references in and between datasets, and the development of an ontolog...

This work describes the architecture of Contorsion, a semantic XPath processor that acts over an RDF mapping of XML. It contributes to a recent research trend that defines an XML-to-RDF mapping allowing XML documents interoperate at the semantic level. We use a model-mapping approach to represent instances of XML and XML Schema in RDF. This representation retains the node order, in contrast wit...

This poster investigates problems and solutions for searching the Web for geospatial data produced by various levels of government. Currently, geospatial data to meet particular needs are difficult to find. We suggest using Internet DBMS and Semantic Web technology to improve search techniques over metadata by using context-oriented search phrases, full query expressions, and semantic mappings....

Birds-eye-view (BEV) semantic segmentation is critical for autonomous driving its powerful spatial representation ability. It challenging to estimate the BEV maps from monocular images due gap, since it implicitly required realize both perspective-to-BEV transformation and segmentation. We present a novel two-stage Geometry PrIor-based Transformation framework named GitNet, consisting of (i) ge...

Making Domain-Specific Modeling Languages a part of a tool chain, a part of a proven development process, or the subject of verification cannot be achieved without the precise specification of the language and the models expressed in it. Defining formal semantics for modeling languages is a widely accepted solution to this problem. We have developed methods, techniques and processes to provide ...

In an open context such as the Semantic Web, information providers usually rely on different ontologies to semantically characterize contents. In order to enable interoperability at a semantic level, ontologies underlying information sources must be linked by discovering alignments, that is, set of correspondences or mappings. The aim of this paper is to provide a formal model (i.e., Semantic F...