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Not another imputation method: A transformer-based model for missing values in tabular datasets

delete2026-01-01
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Camillo Maria Caruso
P
Paolo Soda
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Valerio Guarrasi *
DOI:10.1016/j.aiopen.2026.02.005delete
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摘要

摘要

En 中文
表格数据集中缺失值的处理在训练和测试人工智能模型时是一个重大挑战,这一问题通常通过插补技术来解决。本文介绍了“Not Another Imputation Method”(NAIM)模型,这是一种基于转换器的新型模型,专门设计用于解决此问题,而无需传统的插补技术。NAIM能够避免插补缺失值的必要性并有效学习可用数据,依赖于两种主要技术:使用特征特定嵌入来编码类别和数值特征,同时处理缺失输入;修改掩码自注意力机制以完全屏蔽缺失数据的贡献。此外,引入了一种新颖的正则化技术以增强模型从不完整数据中泛化的能力。我们在5个公开可用的表格数据集上全面评估了NAIM,证明其性能优于6种最先进的机器学习模型和5种深度学习模型,这些模型在必要时均与3种不同的插补技术配对。结果表明,NAIM在提高预测性能和增强在缺失数据存在下的鲁棒性方面具有显著效果。为促进进一步研究和在无传统插补方法的情况下处理缺失数据的实际应用,我们已将NAIM的代码发布在https://github.com/cosbidev/NAIM。
Keyword:
Missing data
Imputation
Tabular embedding
Attention mechanism
AI总结

AI总结

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期刊

A
AI Open
IF:
14.8
论文数:
11
被引数:
0

机构

U
university campus bio-medico - rome italy
学者数:
6.0K
论文数: 4.6K
被引数: 4
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