@inproceedings{johnson-etal-2019-cross, title = {Cross-lingual Transfer Learning for {J}apanese Named Entity Recognition}, author = {Johnson, Andrew and Karanasou, Penny and Gaspers, Judith and Klakow, Dietrich}, booktitle = {Proceedings of the 2019 Conference of the North {A}merican Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 2 (Industry Papers)}, month = jun, year = {2019}, address = {Minneapolis, Minnesota}, publisher = {Association for Computational Linguistics}, url = {https://www.aclweb.org/anthology/N19-2023}, doi = {10.18653/v1/N19-2023}, pages = {182--189}, abstract = {This work explores cross-lingual transfer learning (TL) for named entity recognition, focusing on bootstrapping Japanese from English. A deep neural network model is adopted and the best combination of weights to transfer is extensively investigated. Moreover, a novel approach is presented that overcomes linguistic differences between this language pair by romanizing a portion of the Japanese input. Experiments are conducted on external datasets, as well as internal large-scale real-world ones. Gains with TL are achieved for all evaluated cases. Finally, the influence on TL of the target dataset size and of the target tagset distribution is further investigated.}, }