SINT-Flow: Schema Integration using Large Language Model Workflows
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Computer Science > Computation and Language
Title:SINT-Flow: Schema Integration using Large Language Model Workflows
Abstract:The goal of schema integration is, given a set of input schemata or tables, to derive a global, unified schema that is able to represent the concepts, attributes, and relationships of all input tables in a coherent fashion. This paper presents SINT-Flow, a schema integration framework composed of five LLM-based operators that can be combined into workflows to perform fully automated, end-to-end schema integration. In contrast to existing approaches, SINT-Flow can process denormalized source tables that contain attributes describing multiple entity types. During the schema integration process, these tables are decomposed into separate entity-specific relations. To evaluate SINT-Flow, we introduce SINT-Bench, a schema integration benchmark comprising 10 schema integration tasks consisting of altogether 93 relational tables, including tables that describe multiple types of entities. We evaluate SINT-Flow using GPT-5.2 as well as the open-weight model Qwen-3.6-27B as alternative backbone models. Using these models, SINT-Flow achieves F1 scores of at least 96% for entity-type detection, 85% for attribute detection, and 83% for schema mapping. Furthermore, we perform an ablation study to prove the utility of the applied self-consistency strategy as well as the inclusion of a review loop into the schema matching operator.
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2607.24492 [cs.CL] |
| (or arXiv:2607.24492v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2607.24492
arXiv-issued DOI via DataCite (pending registration)
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