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10.3390/info10040139
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Article

Learning Subword Embedding to Improve Uyghur Named-Entity Recognition

by
Alimu Saimaiti
1,2,3,
Lulu Wang
1,2 and
Tuergen Yibulayin
1,2,*
1
College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
2
Multilingual Information Technology Laboratory of Xinjiang University, Urumqi 830046, China
3
Iflytek Voice and Language Joint Laboratory, Xinjiang University, Urumqi 830046, China
*
Author to whom correspondence should be addressed.
Information 2019, 10(4), 139; https://doi.org/10.3390/info10040139
Submission received: 27 March 2019 / Revised: 9 April 2019 / Accepted: 11 April 2019 / Published: 15 April 2019
(This article belongs to the Section Artificial Intelligence)
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Abstract

Uyghur is a morphologically rich and typical agglutinating language, and morphological segmentation affects the performance of Uyghur named-entity recognition (NER). Common Uyghur NER systems use the word sequence as input and rely heavily on feature engineering. However, semantic information cannot be fully learned and will easily suffer from data sparsity arising from morphological processes when only the word sequence is considered. To solve this problem, we provide a neural network architecture employing subword embedding with character embedding based on a bidirectional long short-term memory network with a conditional random field layer. Our experiments show that subword embedding can effectively enhance the performance of the Uyghur NER, and the proposed method outperforms the model-based word sequence method.
Keywords: subword embedding; Uyghur; named-entity recognition; morphological processing; word sequence; natural language processing; deep learning; word-based neural model subword embedding; Uyghur; named-entity recognition; morphological processing; word sequence; natural language processing; deep learning; word-based neural model

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MDPI and ACS Style

Saimaiti, A.; Wang, L.; Yibulayin, T. Learning Subword Embedding to Improve Uyghur Named-Entity Recognition. Information 2019, 10, 139. https://doi.org/10.3390/info10040139

AMA Style

Saimaiti A, Wang L, Yibulayin T. Learning Subword Embedding to Improve Uyghur Named-Entity Recognition. Information. 2019; 10(4):139. https://doi.org/10.3390/info10040139

Chicago/Turabian Style

Saimaiti, Alimu, Lulu Wang, and Tuergen Yibulayin. 2019. "Learning Subword Embedding to Improve Uyghur Named-Entity Recognition" Information 10, no. 4: 139. https://doi.org/10.3390/info10040139

APA Style

Saimaiti, A., Wang, L., & Yibulayin, T. (2019). Learning Subword Embedding to Improve Uyghur Named-Entity Recognition. Information, 10(4), 139. https://doi.org/10.3390/info10040139

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