6. Conclusion

In this article, we have provided a framework for investigating the use of KGs for explainability in XAI and machine
learning models. This framework was created by performing a systematic review of recently published studies and exam-
ining how and where researchers have used KGs. After reviewing the articles through three specific lenses (explainabil-
ity, machine learning model, and XAI system type), the following conclusions were derived:

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• Many studies have leveraged KGs to extract features, entities, and relations prior to applying an XAI model, as
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Knowledge-graph-based explainable AI- A systematic review