论文标题
学到的表示尊重因果关系吗?
Do learned representations respect causal relationships?
论文作者
论文摘要
数据通常具有许多彼此因果关系的语义属性。但是,属性特定于数据的数据表示也尊重相同的因果关系吗?我们通过三个步骤回答这个问题。首先,我们介绍了NCInet,这是一种从高维数据中发现的观察性因果关系方法。它是纯粹是在合成生成的表示上训练的,可以应用于真实表示形式,并专门设计用于减轻两者之间的域间隙。其次,我们应用NCINET来确定不同属性对的图像表示之间的因果关系,标签之间与已知和未知因果关系。为此,我们考虑了用于预测3D形状,Celeba和Casia-Webface数据集上的属性的图像表示,我们将使用多个多级属性注释。第三,我们分析了代表学习中各种设计选择引起的学术表述之间对基本因果关系的影响。我们的实验表明,(1)NCINET显着超过现有的观察性因果发现方法,用于估计在存在和不存在未观察到的混杂因子的情况下,随机样本对之间的因果关系,(2)在受控的场景下,在受控的场景下,学会的陈述确实可以满足其相关的因子关系,并且可以满足其各种关系的关系。表示的能力。
Data often has many semantic attributes that are causally associated with each other. But do attribute-specific learned representations of data also respect the same causal relations? We answer this question in three steps. First, we introduce NCINet, an approach for observational causal discovery from high-dimensional data. It is trained purely on synthetically generated representations and can be applied to real representations, and is specifically designed to mitigate the domain gap between the two. Second, we apply NCINet to identify the causal relations between image representations of different pairs of attributes with known and unknown causal relations between the labels. For this purpose, we consider image representations learned for predicting attributes on the 3D Shapes, CelebA, and the CASIA-WebFace datasets, which we annotate with multiple multi-class attributes. Third, we analyze the effect on the underlying causal relation between learned representations induced by various design choices in representation learning. Our experiments indicate that (1) NCINet significantly outperforms existing observational causal discovery approaches for estimating the causal relation between pairs of random samples, both in the presence and absence of an unobserved confounder, (2) under controlled scenarios, learned representations can indeed satisfy the underlying causal relations between their respective labels, and (3) the causal relations are positively correlated with the predictive capability of the representations.