Using variance as a stopping criterion for active learning of frame assignment

  • Authors:
  • Masood Ghayoomi

  • Affiliations:
  • Freie Universität Berlin, Berlin

  • Venue:
  • ALNLP '10 Proceedings of the NAACL HLT 2010 Workshop on Active Learning for Natural Language Processing
  • Year:
  • 2010

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Abstract

Active learning is a promising method to reduce human's effort for data annotation in different NLP applications. Since it is an iterative task, it should be stopped at some point which is optimum or near-optimum. In this paper we propose a novel stopping criterion for active learning of frame assignment based on the variability of the classifier's confidence score on the unlabeled data. The important advantage of this criterion is that we rely only on the unlabeled data to stop the data annotation process; as a result there are no requirements for the gold standard data and testing the classifier's performance in each iteration. Our experiments show that the proposed method achieves 93.67% of the classifier maximum performance.