Papers › A Multi-task Approach for Named Entity Recognition in Social Media Data

A Multi-task Approach for Named Entity Recognition in Social Media Data

10 Jun 2019WS 2017 9arXiv:1906.04135archive 2025-07-28

Gustavo Aguilar, Suraj Maharjan, Adrian Pastor López-Monroy, Thamar Solorio

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.

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Code

tavo91/NER-WNUT17 officialmentioned in paper report

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Tasks

Named Entity RecognitionNamed Entity Recognition (NER)named-entity-recognition

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Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Named Entity Recognition (NER) WNUT 2017 UH-RiTUAL F1 41.86 #22 of 23 Archive leaderboard report

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Methods

BiLSTMCNN BiLSTMConvolutionLSTMSigmoid ActivationTanh Activation

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