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Chun-Hao Chang

5 accepted papers

2022

NODE-GAM: Neural Generalized Additive Model for Interpretable Deep Learning

ICLR 2022spotlight

Deployment of machine learning models in real high-risk settings (e.g. healthcare) often depends not only on the model's accuracy but also on its fairness, robustness, and interpretability. Generalized Additive Models (GAMs) are a class of interpretable models with a long history of use in these hig…

2021

Towards Robust Classification Model by Counterfactual and Invariant Data Generation

CVPR 2021poster

Despite the success of machine learning applications in science, industry, and society in general, many approaches are known to be non-robust, often relying on spurious correlations to make predictions. Spuriousness occurs when some features correlate with labels but are not causal; relying on such…

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2020

Purifying Interaction Effects with the Functional ANOVA: An Efficient Algorithm for Recovering Identifiable Additive Models

AISTATS 2020poster

Models which estimate main effects of individual variables alongside interaction effects have an identifiability challenge: effects can be freely moved between main effects and interaction effects without changing the model prediction. This is a critical problem for interpretability because it permi…

2019

Dynamic Measurement Scheduling for Event Forecasting using Deep RL

ICML 2019oral

Imagine a patient in critical condition. What and when should be measured to forecast detrimental events, especially under the budget constraints? We answer this question by deep reinforcement learning (RL) that jointly minimizes the measurement cost and maximizes predictive gain, by scheduling stra…

2019

Explaining Image Classifiers by Counterfactual Generation

ICLR 2019poster

When an image classifier makes a prediction, which parts of the image are relevant and why? We can rephrase this question to ask: which parts of the image, if they were not seen by the classifier, would most change its decision? Producing an answer requires marginalizing over images that could have…