Publication
ICML 2020
Conference paper

Invariant rationalization

Download paper

Abstract

Selective rationalization improves neural network interpretability by identifying a small subset of input features - the rationale - that best explains or supports the prediction. A typical rationalization criterion, i.e. maximum mutual information (MMI), finds the rationale that maximizes the prediction performance based only on the rationale. However, MMI can be problematic because it picks up spurious correlations between the input features and the output. Instead, we introduce a game-theoretic invariant rationalization criterion where the rationales are constrained to enable the same predictor to be optimal across different environments. We show both theoretically and empirically that the proposed rationales can rule out spurious correlations and generalize better to different test scenarios. The resulting explanations also align better with human judgments.

Date

13 Jul 2020

Publication

ICML 2020

Authors

Resources

Share