Spotting Spurious Data with Neural Networks

摘要

Automatic identification of spurious instances (those with potentially wrong labels in datasets) can improve the quality of existing language resources, especially when annotations are obtained through crowdsourc-ing or automatically generated based on coded rankings. In this paper, we present an effective approach inspired by queueing theory and psychology of learning to automatically identify spurious instances in datasets. Our approach discriminates instances based on their "difficulty to learn," determined by a downstream learner. Our method can be applied to any dataset assuming the existence of a neural network model for the target task of the dataset. Our best approach outperforms competing state-of-the-art baselines and has a MAP of 0.85 and 0.22 in identifying spurious instances in synthetic and carefully-crowdsourced real-world datasets respectively.