Linear-Time Primitives for Algorithm Development in Graphical Causal Inference

Fuente: arXiv
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Auteurs principaux: Wienöbst, Marcel, Weichwald, Sebastian, Henckel, Leonard
Format: Preprint
Publié: 2025
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author Wienöbst, Marcel
Weichwald, Sebastian
Henckel, Leonard
author_facet Wienöbst, Marcel
Weichwald, Sebastian
Henckel, Leonard
contents We introduce CIfly, a framework for efficient algorithmic primitives in graphical causal inference that isolates reachability as a reusable core operation. It builds on the insight that many causal reasoning tasks can be reduced to reachability in purpose-built state-space graphs that can be constructed on the fly during traversal. We formalize a rule table schema for specifying such algorithms and prove they run in linear time. We establish CIfly as a more efficient alternative to the common primitives moralization and latent projection, which we show are computationally equivalent to Boolean matrix multiplication. Our open-source Rust implementation parses rule table text files and runs the specified CIfly algorithms providing high-performance execution accessible from Python and R. We demonstrate CIfly's utility by re-implementing a range of established causal inference tasks within the framework and by developing new algorithms for instrumental variables. These contributions position CIfly as a flexible and scalable backbone for graphical causal inference, guiding algorithm development and enabling easy and efficient deployment.
format Preprint
id arxiv_https___arxiv_org_abs_2506_15758
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Linear-Time Primitives for Algorithm Development in Graphical Causal Inference
Wienöbst, Marcel
Weichwald, Sebastian
Henckel, Leonard
Artificial Intelligence
Data Structures and Algorithms
Machine Learning
Methodology
We introduce CIfly, a framework for efficient algorithmic primitives in graphical causal inference that isolates reachability as a reusable core operation. It builds on the insight that many causal reasoning tasks can be reduced to reachability in purpose-built state-space graphs that can be constructed on the fly during traversal. We formalize a rule table schema for specifying such algorithms and prove they run in linear time. We establish CIfly as a more efficient alternative to the common primitives moralization and latent projection, which we show are computationally equivalent to Boolean matrix multiplication. Our open-source Rust implementation parses rule table text files and runs the specified CIfly algorithms providing high-performance execution accessible from Python and R. We demonstrate CIfly's utility by re-implementing a range of established causal inference tasks within the framework and by developing new algorithms for instrumental variables. These contributions position CIfly as a flexible and scalable backbone for graphical causal inference, guiding algorithm development and enabling easy and efficient deployment.
title Linear-Time Primitives for Algorithm Development in Graphical Causal Inference
topic Artificial Intelligence
Data Structures and Algorithms
Machine Learning
Methodology
url https://arxiv.org/abs/2506.15758