Paulheim, H.: Knowledge Graph Refinement: A Survey of Approaches and Evaluation Methods. Semantic Web Journal, S. 1-23, 2016

Nach der oben zitierten Definition eines Knowledge Graphen definiert er mögliche Klas-sen und Beziehungen von Entitäten der betrachteten Wissensdomänen in einem Schema

A Knowledge Graph is a self-descriptive knowledge base where data and itsschema are stored in a graph format, and the relations/connections between data arefirst-class citizens.

Definition 2 (Wang et al. [5]). A knowledge graph is a multi-relational graph composed of entities and relations which areregarded as nodes and different types of edges, respectively.

Definition 1 (Ehrlinger and W ̈oß [12]). A knowledge graphacquires and integrates information into an ontology and appliesa reasoner to derive new knowledge.