Yesterday's News: Benchmarking Multi-Dimensional Out-of-Distribution Generalization of Misinformation Detection Models

• URL: http://arxiv.org/abs/2410.18122v2
• Date: Mon, 26 May 2025 19:18:59 GMT
• Title: Yesterday's News: Benchmarking Multi-Dimensional Out-of-Distribution Generalization of Misinformation Detection Models
• Authors: Ivo Verhoeven, Pushkar Mishra, Ekaterina Shutova,
• Abstract summary: This article introduces misinfo-general, a benchmark dataset for evaluating misinformation models' ability to perform out-of-distribution generalization.<n>We identify time, event, topic, publisher, political bias, misinformation type as important axes for generalization.<n>We show how this model fails desiderata, which is not necessarily obvious from classification metrics.
• Score: 15.120606566150816
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This article introduces misinfo-general, a benchmark dataset for evaluating misinformation models' ability to perform out-of-distribution generalization. Misinformation changes rapidly, much more quickly than moderators can annotate at scale, resulting in a shift between the training and inference data distributions. As a result, misinformation detectors need to be able to perform out-of-distribution generalization, an attribute they currently lack. Our benchmark uses distant labelling to enable simulating covariate shifts in misinformation content. We identify time, event, topic, publisher, political bias, misinformation type as important axes for generalization, and we evaluate a common class of baseline models on each. Using article metadata, we show how this model fails desiderata, which is not necessarily obvious from classification metrics. Finally, we analyze properties of the data to ensure limited presence of modelling shortcuts. We make the dataset and accompanying code publicly available: https://github.com/ioverho/misinfo-general

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