Neurosymbolic Reasoning Shortcuts under the Independence Assumption

Fuente: arXiv
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Main Authors: van Krieken, Emile, Minervini, Pasquale, Ponti, Edoardo, Vergari, Antonio
Format: Preprint
Published: 2025
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author van Krieken, Emile
Minervini, Pasquale
Ponti, Edoardo
Vergari, Antonio
author_facet van Krieken, Emile
Minervini, Pasquale
Ponti, Edoardo
Vergari, Antonio
contents The ubiquitous independence assumption among symbolic concepts in neurosymbolic (NeSy) predictors is a convenient simplification: NeSy predictors use it to speed up probabilistic reasoning. Recent works like van Krieken et al. (2024) and Marconato et al. (2024) argued that the independence assumption can hinder learning of NeSy predictors and, more crucially, prevent them from correctly modelling uncertainty. There is, however, scepticism in the NeSy community around the scenarios in which the independence assumption actually limits NeSy systems (Faronius and Dos Martires, 2025). In this work, we settle this question by formally showing that assuming independence among symbolic concepts entails that a model can never represent uncertainty over certain concept combinations. Thus, the model fails to be aware of reasoning shortcuts, i.e., the pathological behaviour of NeSy predictors that predict correct downstream tasks but for the wrong reasons.
format Preprint
id arxiv_https___arxiv_org_abs_2507_11357
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Neurosymbolic Reasoning Shortcuts under the Independence Assumption
van Krieken, Emile
Minervini, Pasquale
Ponti, Edoardo
Vergari, Antonio
Machine Learning
The ubiquitous independence assumption among symbolic concepts in neurosymbolic (NeSy) predictors is a convenient simplification: NeSy predictors use it to speed up probabilistic reasoning. Recent works like van Krieken et al. (2024) and Marconato et al. (2024) argued that the independence assumption can hinder learning of NeSy predictors and, more crucially, prevent them from correctly modelling uncertainty. There is, however, scepticism in the NeSy community around the scenarios in which the independence assumption actually limits NeSy systems (Faronius and Dos Martires, 2025). In this work, we settle this question by formally showing that assuming independence among symbolic concepts entails that a model can never represent uncertainty over certain concept combinations. Thus, the model fails to be aware of reasoning shortcuts, i.e., the pathological behaviour of NeSy predictors that predict correct downstream tasks but for the wrong reasons.
title Neurosymbolic Reasoning Shortcuts under the Independence Assumption
topic Machine Learning
url https://arxiv.org/abs/2507.11357