Generating Realistic Synthetic Relational Data through Graph Variational Autoencoders

• URL: http://arxiv.org/abs/2211.16889v1
• Date: Wed, 30 Nov 2022 10:40:44 GMT
• Title: Generating Realistic Synthetic Relational Data through Graph Variational Autoencoders
• Authors: Ciro Antonio Mami, Andrea Coser, Eric Medvet, Alexander T.P. Boudewijn, Marco Volpe, Michael Whitworth, Borut Svara, Gabriele Sgroi, Daniele Panfilo, Sebastiano Saccani
• Abstract summary: We combine the variational autoencoder framework with graph neural networks to generate realistic synthetic relational databases. The results indicate that real databases' structures are accurately preserved in the resulting synthetic datasets.
• Score: 47.89542334125886
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Synthetic data generation has recently gained widespread attention as a more reliable alternative to traditional data anonymization. The involved methods are originally developed for image synthesis. Hence, their application to the typically tabular and relational datasets from healthcare, finance and other industries is non-trivial. While substantial research has been devoted to the generation of realistic tabular datasets, the study of synthetic relational databases is still in its infancy. In this paper, we combine the variational autoencoder framework with graph neural networks to generate realistic synthetic relational databases. We then apply the obtained method to two publicly available databases in computational experiments. The results indicate that real databases' structures are accurately preserved in the resulting synthetic datasets, even for large datasets with advanced data types.

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