Virtual knowledge graphs: An overview of systems and use cases
Data Intelligence, 2019•direct.mit.edu
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
structuring the integration layer as a collection of relational tables, the VKG paradigm
replaces the rigid structure of tables with the flexibility of graphs that are kept virtual and
embed domain knowledge. We explain the main notions of this paradigm, its tooling
ecosystem and significant use cases in a wide range of applications. Finally, we discuss …
and access, also known in the literature as Ontology-based Data Access. Instead of
structuring the integration layer as a collection of relational tables, the VKG paradigm
replaces the rigid structure of tables with the flexibility of graphs that are kept virtual and
embed domain knowledge. We explain the main notions of this paradigm, its tooling
ecosystem and significant use cases in a wide range of applications. Finally, we discuss …
Abstract
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 structuring the integration layer as a collection of relational tables, the VKG paradigm replaces the rigid structure of tables with the flexibility of graphs that are kept virtual and embed domain knowledge. We explain the main notions of this paradigm, its tooling ecosystem and significant use cases in a wide range of applications. Finally, we discuss future research directions.
MIT Press