Obtaining Causal Information by Merging Datasets with MAXENT
- URL: http://arxiv.org/abs/2107.07640v1
- Date: Thu, 15 Jul 2021 23:16:36 GMT
- Title: Obtaining Causal Information by Merging Datasets with MAXENT
- Authors: Sergio Hernan Garrido Mejia, Elke Kirschbaum, Dominik Janzing
- Abstract summary: We discuss how causal knowledge can be obtained without having observed all variables jointly.
We derive bounds on the interventional distribution and the average causal effect of a treatment on a target variable in the presence of confounders.
- Score: 12.64433334351049
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: The investigation of the question "which treatment has a causal effect on a
target variable?" is of particular relevance in a large number of scientific
disciplines. This challenging task becomes even more difficult if not all
treatment variables were or even cannot be observed jointly with the target
variable. Another similarly important and challenging task is to quantify the
causal influence of a treatment on a target in the presence of confounders. In
this paper, we discuss how causal knowledge can be obtained without having
observed all variables jointly, but by merging the statistical information from
different datasets. We first show how the maximum entropy principle can be used
to identify edges among random variables when assuming causal sufficiency and
an extended version of faithfulness. Additionally, we derive bounds on the
interventional distribution and the average causal effect of a treatment on a
target variable in the presence of confounders. In both cases we assume that
only subsets of the variables have been observed jointly.
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