Due to the increasing volume, volatility, and diversity of data in virtually all areas of our lives, the ability to detect duplicates in potentially linked data sources is more important than ever before. However, while research is already intensively engaged in adapting duplicate detection algorithms to the changing circumstances, existing test data generators are still designed for small -- mostly relational -- datasets and can thus fulfill their intended task only to a limited extent. In this report, we present our ongoing research on a novel approach for test data generation that -- in contrast to existing solutions -- is able to produce large test datasets with complex schemas and more realistic error patterns while being easy to use for inexperienced users.

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