Hongnan Ma

Beyond Sufficiency: Time Series Explanation with Counterfactual Necessity

Hongnan Ma, Yiwei Shi, Mengyue Yang, Weiru Liu

Faithful explanations of time-series classifiers should identify subsequences that are not only sufficient to preserve a black-box model's prediction, but also necessary for maintaining it. However, existing sufficiency-oriented methods can assign high importance to spurious subs…Read more