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Data Analysis and Knowledge Discovery  2020, Vol. 4 Issue (1): 89-98    DOI: 10.11925/infotech.2096-3467.2019.0869
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Automatic Identification of Term Citation Object with Feature Fusion
Na Ma1,2,Zhixiong Zhang1,2,3,4(),Pengmin Wu5
1National Science Library, Chinese Academy of Sciences, Beijing 100190, China
2School of Economic and Management, University of Chinese Academy of Sciences, Beijing 100190, China
3Wuhan Library, Chinese Academy of Sciences, Wuhan 430071, China
4Hubei Key Laboratory of Big Data in Science and Technology, Wuhan 430071, China
5Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
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Abstract  

[Objective] This paper explores methods automatically identifying term citation objects from scientific papers, with feature fusion and pseudo-label noise reduction strategy.[Methods] First, we converted the identification of term citation objects into sequential annotation. Then, we combined linguistic and heuristic features of term citation objects in the BiLSTM-CNN-CRF input layer, which enhanced their feature representations. Finally, we designed pseudo-label learning noise reduction mechanism, and compared the performance of different models.[Results] The optimal F1 value of our method reached 0.6018, which was 8% higher than that of the BERT model.[Limitations] The experimental data was collected from computer science articles, thus, our model needs to be examined with data from other fields.[Conclusions] The proposed method could effectively identify term citation objects.

Key wordsCitation Object Identification      Feature Fusion      Pseudo-Label Learning      BiLSTM-CNN-CRF     
Received: 23 July 2019      Published: 14 March 2020
ZTFLH:  TP391  
Corresponding Authors: Zhixiong Zhang     E-mail: zhangzhx@mail.las.ac.cn

Cite this article:

Na Ma,Zhixiong Zhang,Pengmin Wu. Automatic Identification of Term Citation Object with Feature Fusion. Data Analysis and Knowledge Discovery, 2020, 4(1): 89-98.

URL:

http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.2096-3467.2019.0869     OR     http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2020/V4/I1/89

BiLSTM-CNN-CRF Model
CNN Model for Extracting Char-level Representations
Feature Representation of Term Citation Object
Pseudo-label Learning Flowchart
训练参数
LSTM层数 2
神经单元数量 100
学习率 0.015
Dropout率 0.5
损失函数 交叉熵损失函数
Batch_size 10
优化器 Adam
L2(权重衰减率) 1.0e-8
Char_max_len 20
卷积核大小 3*3
卷积核数量 30
句子最大长度 300
Parameters for Experiments
模型-特征 Precision Recall F1
BiLSTM-CNN-CRF(Baseline) 25.57% 8.17% 12.38%
BiLSTM-CNN-CRF(POS) 30.43% 15.26% 20.33%
BiLSTM-CNN-CRF(POS+REF) 60.42% 49.15% 54.21%
BiLSTM-CNN-CRF(POS+DIS) 61.18% 51.07% 55.67%
BiLSTM-CNN-CRF(REF+DIS) 61.71% 56.02% 58.73%
BiLSTM-CNN-CRF(POS+REF+DIS) 62.96% 57.63% 60.18%
BERT 52.13% 51.55% 51.94%
Results with Different Features on Test Dataset
预测模型 预测结果
BiLSTM-CNN-CRF(POS+REF+DIS) We have adopted the Conditional Maximum Entropy (MaxEnt) modeling paradigm as outlined in REF3 and REF19
To quickly (and approximately) evaluate this phenomenon, we trained the statistical IBM word-alignment model 4 REF7, using the GIZA ++ software REF11 for the following language pairs: Chinese-English, Italian-English, and Dutch-English, using the IWSLT-2006 corpus REF23 for the first two language pairs, and the Europarl corpus REF9 for the last one.
In computational linguistic literature, much effort has been devoted to phonetic transliteration, such as English-Arabic, English-Chinese REF5, English-Japanese REF6 and English-Korean.
Tokenisation, species word identification and chunking were implemented in-house using the LTXML2 tools REF4, whilst abbreviation extraction used the Schwartz and Hearst abbreviation extractor REF9 and lemmatisation used morpha REF12.
Examples of Differences Between Labeled Results and Predicted Results
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