Abstract
In low-resource settings, the performance of supervised labeling models can be improved with automatically annotated or distantly supervised data, which is cheap to create but often noisy. Previous works have shown that significant improvements can be reached by injecting information about the confusion between clean and noisy labels in this additional training data into the classifier training. However, for noise estimation, these approaches either do not take the input features (in our case word embeddings) into account, or they need to learn the noise modeling from scratch which can be difficult in a low-resource setting. We propose to cluster the training data using the input features and then compute different confusion matrices for each cluster. To the best of our knowledge, our approach is the first to leverage feature-dependent noise modeling with pre-initialized confusion matrices. We evaluate on low-resource named entity recognition settings in several languages, showing that our methods improve upon other confusion-matrix based methods by up to 9%.- Anthology ID:
- D19-1362
- Volume:
- Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP)
- Month:
- November
- Year:
- 2019
- Address:
- Hong Kong, China
- Editors:
- Kentaro Inui, Jing Jiang, Vincent Ng, Xiaojun Wan
- Venues:
- EMNLP | IJCNLP
- SIG:
- SIGDAT
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 3554–3559
- Language:
- URL:
- https://aclanthology.org/D19-1362
- DOI:
- 10.18653/v1/D19-1362
- Cite (ACL):
- Lukas Lange, Michael A. Hedderich, and Dietrich Klakow. 2019. Feature-Dependent Confusion Matrices for Low-Resource NER Labeling with Noisy Labels. In Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), pages 3554–3559, Hong Kong, China. Association for Computational Linguistics.
- Cite (Informal):
- Feature-Dependent Confusion Matrices for Low-Resource NER Labeling with Noisy Labels (Lange et al., EMNLP-IJCNLP 2019)
- PDF:
- https://preview.aclanthology.org/add_acl24_videos/D19-1362.pdf
- Code
- uds-lsv/noise-matrix-ner