Local Explanations via Necessity and Sufficiency: Unifying Theory and Practice [article]

David Watson, Limor Gultchin, Ankur Taly, Luciano Floridi
2021 arXiv   pre-print
Necessity and sufficiency are the building blocks of all successful explanations. Yet despite their importance, these notions have been conceptually underdeveloped and inconsistently applied in explainable artificial intelligence (XAI), a fast-growing research area that is so far lacking in firm theoretical foundations. Building on work in logic, probability, and causality, we establish the central role of necessity and sufficiency in XAI, unifying seemingly disparate methods in a single formal
more » ... framework. We provide a sound and complete algorithm for computing explanatory factors with respect to a given context, and demonstrate its flexibility and competitive performance against state of the art alternatives on various tasks.
arXiv:2103.14651v2 fatcat:ptuvien33zbwxn5e4v2u75kaj4