arXiv:2606.00503cs.LGcs.AI2026-06

精准修改表格数据属性,保持数据自然且改动最小。

TabChange: Precise Attribute Changes in Tabular Data

  • 分析属性间关系,弱关联则直接翻转,强关联则用对抗方法消除潜在信息。
  • 在7个数据集上生成的反事实样本更自然、更接近原数据,有效率更高。
  • 适合需要可解释性与数据隐私保护的场景,如医疗或金融数据分析。

在表格数据中修改某一属性时常会破坏与其他属性的关系,导致生成不自然的实例。理想的修改应既保持数据自然性,又尽量减少与原实例的差异。现有方法存在局限:生成模型通常不支持实例级属性编辑,或如CVAE类方法在隐空间中保留属性信息,造成不必要的修改。为此,我们提出TabChange,通过分析目标属性与其他属性的关系:若关系弱,则直接翻转该属性;若关系强,则采用对抗框架从隐表示中移除该属性信息,实现精确修改。实验在七个数据集上验证,结果表明,相比基线方法,TabChange生成的反事实样本在自然度上相当,且更贴近原始实例,有效反事实数量更高,无效反事实更少。

原文摘要 · Abstract (English)

Modifying an attribute in tabular data often introduces an unnatural instance by breaking its relationships with other attributes. The modified instance must be both natural and minimally changed from the original instance. This paper addresses the challenge of generating such a modified instance. We identify key limitations in existing approaches: generative models either don't support instance-level attribute editing or, in the case of methods like CVAE, retain attribute information in the latent space, leading to unnecessary modifications. To solve this, we propose TabChange, an approach that analyzes the relationship between the attribute of interest and other attributes in the dataset. If the relationship is weak, it simply flips the attribute; if it is strong, it uses an adversarial framework that removes information about the attribute in the latent space representation. This removal enables precise modifications, making only the necessary adjustments to maintain naturalness. Our experiments across seven datasets show that TabChange generates counterfactuals in attributes that are comparable in naturalness and are more proximal to their original instances. This leads to a higher number of valid counterfactuals and a lower number of invalid counterfactuals compared to the baselines.

表格数据属性编辑反事实生成

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。