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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 35 / No. 15: AAAI-21 Technical Tracks 15

Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration

February 1, 2023

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Authors

Lei Sha

University of Oxford


Oana-Maria Camburu

University of Oxford Alan Turing Institute


Thomas Lukasiewicz

University of Oxford Alan Turing Institute


DOI:

10.1609/aaai.v35i15.17623


Abstract:

Explaining the predictions of AI models is paramount in safety-critical applications, such as in legal or medical domains. One form of explanation for a prediction is an extractive rationale, i.e., a subset of features of an instance that lead the model to give its prediction on the instance. Previous works on generating extractive rationales usually employ a two-phase model: a selector that selects the most important features (i.e., the rationale) followed by a predictor that makes the prediction based exclusively on the selected features. One disadvantage of these works is that the main signal for learning to select features comes from the comparison of the final answers given by the predictor and the ground-truth answers. In this work, we propose to squeeze more information from the predictor via an information calibration method. More precisely, we train two models jointly: one is a typical neural model that solves the task at hand in an accurate but black-box manner, and the other is a selector-predictor model that additionally produces a rationale for its prediction. The first model is used as a guide to the second model. We use an adversarial-based technique to calibrate the information extracted by the two models such that the difference between them is an indicator of the missed or over-selected features. In addition, for natural language tasks, we propose to use a language-model-based regularizer to encourage the extraction of fluent rationales. Experimental results on a sentiment analysis task as well as on three tasks from the legal domain show the effectiveness of our approach to rationale extraction.

Topics: AAAI

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HOW TO CITE:

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration Proceedings of the AAAI Conference on Artificial Intelligence (2021) 13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration AAAI 2021, 13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz (2021). Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration. Proceedings of the AAAI Conference on Artificial Intelligence, 13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration. Proceedings of the AAAI Conference on Artificial Intelligence 2021 p.13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. 2021. Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration. "Proceedings of the AAAI Conference on Artificial Intelligence". 13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. (2021) "Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration", Proceedings of the AAAI Conference on Artificial Intelligence, p.13771-13779

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz, "Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration", AAAI, p.13771-13779, 2021.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. "Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration". Proceedings of the AAAI Conference on Artificial Intelligence, 2021, p.13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. "Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration". Proceedings of the AAAI Conference on Artificial Intelligence, (2021): 13771-13779.

Lei Sha||Oana-Maria Camburu||Thomas Lukasiewicz. Learning from the Best: Rationalizing Predictions by Adversarial Information Calibration. AAAI[Internet]. 2021[cited 2023]; 13771-13779.


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
Copyright 2022, Association for the Advancement of
Artificial Intelligence 1900 Embarcadero Road, Suite
101, Palo Alto, California 94303 All Rights Reserved

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