RelPrism: A Multi-Faceted Pre-training Framework with Self-Generated Tasks for Relational Databases
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Computer Science > Machine Learning
arXiv:2605.23241 (cs)
[Submitted on 22 May 2026]
Title:RelPrism: A Multi-Faceted Pre-training Framework with Self-Generated Tasks for Relational Databases
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Abstract:Relational databases (RDBs) remain the cornerstone of modern data systems and support diverse predictive tasks. Recent relational deep learning (RDL) methods enable end-to-end prediction by converting RDBs into graphs, where rows are represented as nodes and inter-table interactions are represented as edges, and then applying graph-based models for representation learning. Despite the strong capability of RDL, effective self-supervised pre-training for RDBs remains non-trivial. RDB tasks often require multi-faceted information across different perspectives and granularities. For example, user churn classification may rely more on interaction patterns, whereas consumption value prediction requires both user-item behaviors and intrinsic user attributes for fine-grained regression. Such heterogeneous needs challenge RDB representation learning, as pre-training objectives should cover comprehensive information for downstream adaptation. However, existing SSL methods typically derive supervision from a single facet, such as node-level intrinsic attributes or subgraph-level relational structures, providing limited adaptability. To this end, we propose RelPrism, a multi-faceted self-supervised learning framework for RDBs. RelPrism constructs intrinsic, relational, and hybrid attributes from distinct perspectives, and applies multi-granularity clustering to each perspective to form corresponding pseudo-task pools. Pre-training over these pools exposes representations to broader perspectives and granularity levels, yielding a stronger basis for downstream adaptation. Experiments on 14 tasks across 5 real-world datasets show that RelPrism improves ROC-AUC by 4.15% for classification and reduces MAE by 10.75% for regression over state-of-the-art baselines. Our code is available at this https URL.
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2605.23241 [cs.LG] |
| (or arXiv:2605.23241v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2605.23241
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled RelPrism: A Multi-Faceted Pre-training Framework with Self-Generated Tasks for Relational Databases, by Jinyu Yang and 6 other authors
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