Active Bayesian Assessment of Black-Box Classifiers

Authors

  • Disi Ji Department of Computer Science, University of California, Irvine
  • Robert L. Logan Department of Computer Science, University of California, Irvine
  • Padhraic Smyth Department of Computer Science, University of California, Irvine
  • Mark Steyvers Department of Cognitive Sciences, University of California, Irvine

Keywords:

Evaluation and Analysis (Machine Learning)

Abstract

Recent advances in machine learning have led to increased deployment of black-box classifiers across a wide variety of applications. In many such situations there is a critical need to both reliably assess the performance of these pre-trained models and to perform this assessment in a label-efficient manner (given that labels may be scarce and costly to collect). In this paper, we introduce an active Bayesian approach for assessment of classifier performance to satisfy the desiderata of both reliability and label-efficiency. We begin by developing inference strategies to quantify uncertainty for common assessment metrics such as accuracy, misclassification cost, and calibration error. We then propose a general framework for active Bayesian assessment using inferred uncertainty to guide efficient selection of instances for labeling, enabling better performance assessment with fewer labels. We demonstrate significant gains from our proposed active Bayesian approach via a series of systematic empirical experiments assessing the performance of modern neural classifiers (e.g., ResNet and BERT) on several standard image and text classification datasets.

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Published

2021-05-18

How to Cite

Ji, D., Logan, R. L., Smyth, P., & Steyvers, M. (2021). Active Bayesian Assessment of Black-Box Classifiers. Proceedings of the AAAI Conference on Artificial Intelligence, 35(9), 7935-7944. Retrieved from https://ojs.aaai.org/index.php/AAAI/article/view/16968

Issue

Section

AAAI Technical Track on Machine Learning II