Local Explanations via Necessity and Sufficiency: Unifying Theory and Practice. (arXiv:2103.14651v1 [cs.LG])

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
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.

Source: https://arxiv.org/abs/2103.14651


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