Publications

@inproceedings{aguilar-EtAl:2017:WNUT,

title = {A Multi-task Approach for Named Entity Recognition on Social Media Data},

author = {Gustavo Aguilar, Suraj Maharjan, A. Pastor López Monroy, Thamar Solorio},

url = {http://www.aclweb.org/anthology/W17-4419},

year  = {2017},

date = {2017-09-07},

publisher = {Proceedings of 3rd Workshop on Noisy User-generated Text, WNUT 2017.},

abstract = {Named Entity Recognition for social media data is challenging because of its inherent noisiness. In addition to improper grammatical structures, it contains spelling inconsistencies and numerous informal abbreviations. We propose a novel multi-task approach by employing a more general secondary task of Named Entity (NE) segmentation together with the primary task of fine-grained NE categorization. The multi-task neural network architecture learns higher order feature representations from word and character sequences along with basic Part-of-Speech tags and gazetteer information. This neural network acts as a feature extractor to feed a Conditional Random Fields classifier. We were able to obtain the first position in the 3rd Workshop on Noisy User-generated Text (WNUT-2017) with a 41.86% entity F1-score and a 40.24% surface F1-score.},

note = {Ranked 1st place in the two evaluation metrics},

keywords = {CRF, Deeplearning, Multitask, NER},

pubstate = {published},

tppubtype = {inproceedings}

}