The Challenges of Machine Learning for Trust and Safety: A Case Study on Misinformation Detection

• URL: http://arxiv.org/abs/2308.12215v3
• Date: Wed, 19 Jun 2024 20:33:53 GMT
• Title: The Challenges of Machine Learning for Trust and Safety: A Case Study on Misinformation Detection
• Authors: Madelyne Xiao, Jonathan Mayer,
• Abstract summary: We examine the disconnect between scholarship and practice in applying machine learning to trust and safety problems. We survey literature on automated detection of misinformation across a corpus of 248 well-cited papers in the field. We conclude that the current state-of-the-art in fully-automated detection has limited efficacy in detecting human-generated misinformation.
• Score: 0.8057006406834466
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We examine the disconnect between scholarship and practice in applying machine learning to trust and safety problems, using misinformation detection as a case study. We survey literature on automated detection of misinformation across a corpus of 248 well-cited papers in the field. We then examine subsets of papers for data and code availability, design missteps, reproducibility, and generalizability. Our paper corpus includes published work in security, natural language processing, and computational social science. Across these disparate disciplines, we identify common errors in dataset and method design. In general, detection tasks are often meaningfully distinct from the challenges that online services actually face. Datasets and model evaluation are often non-representative of real-world contexts, and evaluation frequently is not independent of model training. We demonstrate the limitations of current detection methods in a series of three representative replication studies. Based on the results of these analyses and our literature survey, we conclude that the current state-of-the-art in fully-automated misinformation detection has limited efficacy in detecting human-generated misinformation. We offer recommendations for evaluating applications of machine learning to trust and safety problems and recommend future directions for research.

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