More and more data in various formats are integrated into knowledge graphs. However,
there is no overview of existing approaches for generating knowledge graphs from …

In this paper, we present the virtual knowledge graph (VKG) paradigm for data integration
and access, also known in the literature as Ontology-based Data Access. Instead of …

We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows
for querying relational data sources through a conceptual representation of the domain of …

The authors propose an innovative Internet of Things (IoT) based E-commerce business
model Cloud Laundry for mass scale laundry services. The model utilises big data analytics …

Abstract Ontology Based Data Access (OBDA) is a prominent approach to query databases
which uses an ontology to expose data in a conceptually clear manner by abstracting away …

Ontologies have recently became a popular mechanism to expose relational database
(RDBs) due to their ability to describe the domain of data in terms of classes and properties …

Present days the devices embedded with the technology playing a vital role. All the user
various kinds of information such as medical information, bank account information, user …

We present a description and analysis of the data access challenge in Siemens Energy. We
advocate Ontology Based Data Access (OBDA) as a suitable Semantic Web driven …

With knowledge graphs (KGs) at the center of numerous applications such as recommender
systems and question answering, the need for generalized pipelines to construct and …

An important application of semantic technologies in industry has been the formalisation of
information models using OWL 2 ontologies and the use of RDF for storing and exchanging …