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Embedding Knowledge Graphs with RDF2vec

  • Book
  • © 2023

Overview

  • Explains what are knowledge graph embeddings are and how they can be computed
  • Demonstrates how RDF2vec is used as a building block in AI applications
  • Discusses which variants of RDF2vec exist and when to use them

Part of the book series: Synthesis Lectures on Data, Semantics, and Knowledge (SLDSK)

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About this book

This book explains the ideas behind one of the most well-known methods for knowledge graph embedding of transformations to compute vector representations from a graph, known as RDF2vec. The authors describe its usage in practice, from reusing pre-trained knowledge graph embeddings to training tailored vectors for a knowledge graph at hand. They also demonstrate different extensions of RDF2vec and how they affect not only the downstream performance, but also the expressivity of the resulting vector representation, and analyze the resulting vector spaces and the semantic properties they encode.

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Table of contents (8 chapters)

Authors and Affiliations

  • University of Mannheim, Mannheim, Germany

    Heiko Paulheim

  • eBay (United States), San Jose, USA

    Petar Ristoski

  • SAP SE, Walldorf, Germany

    Jan Portisch

About the authors

Heiko Paulheim is a computer scientist and a full professor for Data Science at the University of Mannheim. His group conducts various projects around knowledge graphs, yielding, among others, the public knowledge graphs WebIsALOD, CaLiGraph, and DBkWik. Moreover, his group is concerned with using knowledge graphs in machine learning, which has lead to the development of the widespread RDF2vec method for knowledge graph embeddings. In the recent past, Heiko Paulheim also leads projects which are concerned with ethical, societal, and legal aspects of AI, including KareKoKI, which deals with the impact of price-setting AIs on antitrust legislation, and the ReNewRS project on ethical news recommenders.

 

Petar Ristoski is an applied researcher at eBay in San Jose, CA.

 

Jan Portisch is a PhD student at the University of Mannheim in cooperation with SAP SE - Business Technology Platform - One Domain Model.

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