Connecting Interpretability and Robustness in Decision Trees through Separation

التفاصيل البيبلوغرافية
العنوان: Connecting Interpretability and Robustness in Decision Trees through Separation
المؤلفون: Moshkovitz, Michal, Yang, Yao-Yuan, Chaudhuri, Kamalika
سنة النشر: 2021
المجموعة: Computer Science
Statistics
مصطلحات موضوعية: Computer Science - Machine Learning, Statistics - Machine Learning
الوصف: Recent research has recognized interpretability and robustness as essential properties of trustworthy classification. Curiously, a connection between robustness and interpretability was empirically observed, but the theoretical reasoning behind it remained elusive. In this paper, we rigorously investigate this connection. Specifically, we focus on interpretation using decision trees and robustness to $l_{\infty}$-perturbation. Previous works defined the notion of $r$-separation as a sufficient condition for robustness. We prove upper and lower bounds on the tree size in case the data is $r$-separated. We then show that a tighter bound on the size is possible when the data is linearly separated. We provide the first algorithm with provable guarantees both on robustness, interpretability, and accuracy in the context of decision trees. Experiments confirm that our algorithm yields classifiers that are both interpretable and robust and have high accuracy. The code for the experiments is available at https://github.com/yangarbiter/interpretable-robust-trees .
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2102.07048
رقم الأكسشن: edsarx.2102.07048
قاعدة البيانات: arXiv