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Conference Papers Year : 2023

Tractable Explaining of Multivariate Decision Trees

Abstract

We study multivariate decision trees (MDTs), in particular, classes of MDTs determined by the language of relations that can be used to split feature space. An abductive explanation (AXp) of the classification of a particular instance, viewed as a set of feature-value assignments, is a minimal subset of the instance which is sufficient to lead to the same decision. We investigate when finding a single AXp is tractable. We identify tractable languages for real, integer and boolean features. Indeed, in the case of boolean languages, we provide a P/NP-hard dichotomy.
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Dates and versions

hal-04268587 , version 1 (02-11-2023)

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Clément Carbonnel, Martin Cooper, Joao Marques-Silva. Tractable Explaining of Multivariate Decision Trees. KR 2023 - 20th International Conference on Principles of Knowledge Representation and Reasoning, Sep 2023, Rhodes, Greece. pp.127-135, ⟨10.24963/kr.2023/13⟩. ⟨hal-04268587⟩
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