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Conference Papers Year : 2023

Interpreting Predictive Models through Causality: A Query-Driven Methodology

Mahdi Hadj Ali
  • Function : Author
Yann Le Biannic
  • Function : Author
Pierre-Henri Wuillemin


Machine learning algorithms have been widely adopted in recent years due to their efficiency and versatility across many fields. However, the complexity of predictive models has led to a lack of interpretability in automatic decision-making. Recent works have improved general interpretability by estimating the contributions of input features to the prediction of a pre-trained model. Despite these advancements, practitioners still seek to gain causal insights into the underlying data-generating mechanisms. To this end, some works have attempted to integrate causal knowledge into interpretability, as non-causal techniques can lead to paradoxical explanations. These efforts have provided answers to various queries, but relying on a single pre-trained model may result in quantification problems. In this paper, we argue that each causal query requires its own reasoning; thus, a single predictive model is not suited for all questions. Instead, we propose a new framework that prioritizes the query of interest and then derives a query-driven methodology accordingly to the structure of the causal model. It results in a tailored predictive model adapted to the query and an adapted interpretability technique. Specifically, it provides a numerical estimate of causal effects, which allows for accurate answers to explanatory questions when the causal structure is known.
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hal-04110395 , version 1 (05-06-2023)



Mahdi Hadj Ali, Yann Le Biannic, Pierre-Henri Wuillemin. Interpreting Predictive Models through Causality: A Query-Driven Methodology. The International FLAIRS Conference Proceedings, May 2023, ClearWater, FL, United States. ⟨10.32473/flairs.36.133387⟩. ⟨hal-04110395⟩
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