Abstract
A myriad of explainability methods have been proposed in recent years, but there is little consensus on how to evaluate them. While automatic metrics allow for quick enchmarking,
it isn’t clear how such metrics reflect human interaction with explanations. Human evaluation is of paramount importance, but previous protocols fail to account for belief biases affecting human performance, which may lead to misleading conclusions. We provide an overview of belief bias, its role in human evaluation, and ideas for NLP practitioners on how to account for it. For t o experimental paradigms, we present a case study of gradientbased explainability ntroducing simple ways to account for humans’ prior beliefs: models of varying quality and adversarial examples. We show that conclusions about the highest performing methods change when introducing such controls, pointing to the importance of accounting for belief bias in evaluation.
1 Int
it isn’t clear how such metrics reflect human interaction with explanations. Human evaluation is of paramount importance, but previous protocols fail to account for belief biases affecting human performance, which may lead to misleading conclusions. We provide an overview of belief bias, its role in human evaluation, and ideas for NLP practitioners on how to account for it. For t o experimental paradigms, we present a case study of gradientbased explainability ntroducing simple ways to account for humans’ prior beliefs: models of varying quality and adversarial examples. We show that conclusions about the highest performing methods change when introducing such controls, pointing to the importance of accounting for belief bias in evaluation.
1 Int
Original language | English |
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Title of host publication | Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 |
Number of pages | 13 |
Place of Publication | Online |
Publisher | Association for Computational Linguistics |
Publication date | 1 Aug 2021 |
Pages | 2930-2942 |
DOIs | |
Publication status | Published - 1 Aug 2021 |
Event | Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing, ACL-IJCNLP 2021 - Virtual, Online Duration: 1 Aug 2021 → 6 Aug 2021 |
Conference
Conference | Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing, ACL-IJCNLP 2021 |
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City | Virtual, Online |
Period | 01/08/2021 → 06/08/2021 |
Sponsor | Amazon Science, Apple, Bloomberg Engineering, et al., Facebook AI, Google Research |