Causal Retrieval-Augmented Generation: ModifyingFake Correlations in AI-Driven Knowledge Systems through Algorithmic Nudging
This paper introduces Causal Retrieval-Augmented Generation (CR-RAG), a framework that models the RAG pipeline as a Structural Causal Model to mitigate spurious correlations and reduce hallucinations through backdoor adjustment, inverse-propensity reweighting, and counterfactual data augmentation, achieving significant performance gains on knowledge-intensive benchmarks, particularly for long-tail questions.