Database Normalization via Dual-LLM Self-Refinement

Fuente: arXiv
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Autori principali: Jo, Eunjae, Lee, Nakyung, Kim, Gyuyeong
Natura: Preprint
Pubblicazione: 2025
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author Jo, Eunjae
Lee, Nakyung
Kim, Gyuyeong
author_facet Jo, Eunjae
Lee, Nakyung
Kim, Gyuyeong
contents Database normalization is crucial to preserving data integrity. However, it is time-consuming and error-prone, as it is typically performed manually by data engineers. To this end, we present Miffie, a database normalization framework that leverages the capability of large language models. Miffie enables automated data normalization without human effort while preserving high accuracy. The core of Miffie is a dual-model self-refinement architecture that combines the best-performing models for normalized schema generation and verification, respectively. The generation module eliminates anomalies based on the feedback of the verification module until the output schema satisfies the requirement for normalization. We also carefully design task-specific zero-shot prompts to guide the models for achieving both high accuracy and cost efficiency. Experimental results show that Miffie can normalize complex database schemas while maintaining high accuracy.
format Preprint
id arxiv_https___arxiv_org_abs_2508_17693
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Database Normalization via Dual-LLM Self-Refinement
Jo, Eunjae
Lee, Nakyung
Kim, Gyuyeong
Databases
Artificial Intelligence
Computation and Language
Database normalization is crucial to preserving data integrity. However, it is time-consuming and error-prone, as it is typically performed manually by data engineers. To this end, we present Miffie, a database normalization framework that leverages the capability of large language models. Miffie enables automated data normalization without human effort while preserving high accuracy. The core of Miffie is a dual-model self-refinement architecture that combines the best-performing models for normalized schema generation and verification, respectively. The generation module eliminates anomalies based on the feedback of the verification module until the output schema satisfies the requirement for normalization. We also carefully design task-specific zero-shot prompts to guide the models for achieving both high accuracy and cost efficiency. Experimental results show that Miffie can normalize complex database schemas while maintaining high accuracy.
title Database Normalization via Dual-LLM Self-Refinement
topic Databases
Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2508.17693