Knowledge Graph Lifecycle: Building and maintaining Knowledge Graphs

Umutcan Simsek, Kevin Angele, Elias Kärle, Juliette Opdenplatz, Dennis Sommer, Jürgen Umbrich, Dieter Fensel

Keywords: knowledge graphs, knowledge graph lifecycle, knowledge curation, knowledge creation

Abstract:

Knowledge Graphs can integrate a large amount of data from
heterogeneous sources. They can be an important resource for various ap-
plications; however, they are only useful if they satisfy the requirements
of those applications in terms of quality. In this in-use experience paper,
we present our approach and tools for supporting the Knowledge Graph
Lifecycle that starts with creation and hosting and continues with the
curation and deployment. The curation process enables the mainteinance
of a Knowledge Graph, especially in terms of correctness and complete-
ness. We provide process models and evaluation of developed tools with
Knowledge Graphs in tourism domain. We discuss the lessons learned
from implementing such an approach in an open and commercial setting
and conclude with a summary and a description of currently ongoing use
cases.