Foundations of Interpretable Models
Abstract
We argue that existing definitions of interpretability are not actionable in that they fail to inform users about general, sound, and robust interpretable model design. This makes current interpretability research fundamentally ill-posed. To address this issue, we propose a definition of interpretability that is general, simple, and subsumes existing informal notions within the interpretable AI community. We show that our definition is actionable, as it directly reveals the foundational properties, underlying assumptions, principles, data structures, and architectural features necessary for designing interpretable models. Building on this, we propose a general blueprint for designing interpretable models and introduce the first open-sourced library with native support for interpretable data structures and processes.
Cite
@article{arxiv.2508.00545,
title = {Foundations of Interpretable Models},
author = {Pietro Barbiero and Mateo Espinosa Zarlenga and Alberto Termine and Mateja Jamnik and Giuseppe Marra},
journal= {arXiv preprint arXiv:2508.00545},
year = {2025}
}