Inferring causal relationships between variables is essential for understanding multivariate interactions in complex systems.
Knowledge-based causal discovery relies on reasoning over metadata of variables, offering an alternative to traditional observational data methods.
A novel approach integrating Knowledge Graphs with Large Language Models improves knowledge-based causal discovery by identifying informative subgraphs and refining their selection.
Extensive experiments on biomedical and open-domain datasets show that this method outperforms baselines in inferring causal relationships, offering a significant improvement in F1 scores.