[2003.02320] Knowledge Graphs

In this paper we provide a comprehensive introduction to knowledge graphs, which have recently garnered significant attention from both industry and academia in scenarios that require exploiting diverse, dynamic, large-scale collections of data. After some opening remarks, we motivate and contrast various graph-based data models and query languages that are used for knowledge graphs. We discuss the roles of schema, identity, and context in knowledge graphs. We explain how knowledge can be represented and extracted using a combination of deductive and inductive techniques. We summarise methods for the creation, enrichment, quality assessment, refinement, and publication of knowledge graphs. We provide an overview of prominent open knowledge graphs and enterprise knowledge graphs, their applications, and how they use the aforementioned techniques. We conclude with high-level future research directions for knowledge graphs.

Knowledge Graphs AIDAN HOGAN, IMFD, DCC, Universidad de Chile, Chile EVA BLOMQVIST, Linköping University, Sweden MICHAEL COCHEZ, Vrije Universiteit and Discovery Lab, Elsevier, The Netherlands arXiv:2003.02320v6 [cs.AI] 11 Sep 2021 CLAUDIA D’AMATO, University of Bari, Italy GERARD DE MELO, HPI, Germany and Rutgers University, USA CLAUDIO…

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