Ontology-Compliant Knowledge Graphs

Abstract

Ontologies can act as a schema for constructing knowledge graphs (KGs), offering explainability, interoperability, and reusability. We explore \emph{ontology-compliant} KGs, aiming to build both internal and external ontology compliance. We discuss key tasks in ontology compliance and introduce our novel term-matching algorithms. We also propose a \emph{pattern-based compliance} approach and novel compliance metrics. The building sector is a case study to test the validity of ontology-compliant KGs. We recommend using ontology-compliant KGs to pursue automatic matching, alignment, and harmonisation of heterogeneous KGs.

Figures (7)

• Figure 1: Non-compliance between KG and its ontology.
• Figure 2: The difference between ontology-compliant KGs and the other two types.
• Figure 3: An example of ontology compliance within KG.
• Figure 4: An example of ontology compliance over KGs.
• Figure 5: An example of pattern-based compliance.