Hofer, M., Obraczka, D., Saeedi, A., Kopcke, H., & Rahm, E. (2023). Construction of Knowledge Graphs: State and Challenges. ArXiv, abs/2302.11509. Abstract. ... In this work we first discuss the main graph models for KGs and introduce the major requirement for future KG construction pipelines. We then provide an overview of the necessary steps to build high-quality KGs including cross-cutting topics such as metadata management, ontology development and quality assurance. We then evaluate the state of the art of KG construction w.r.t the introduced requirements for specific popular KGs as well as some recent tools and strategies for KG construction. Finally we identify areas in need of further research and improvement. 1. Introduction 2. KG background and requirements for KG construction 2.1. Knowledge Graph KGs realize a physical data integration where the information from different sources is combined in a new logically centralized graph-like representation. KGs are schema-flexi
