Detecting and Classifying Typhoon Information from Chinese News Based on a Neural Network Model
Danjie Chen,
Fen Qin,
Kun Cai and
Yatian Shen
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Danjie Chen: College of Environment and Planning, Henan University, Kaifeng 475004, China
Fen Qin: College of Environment and Planning, Henan University, Kaifeng 475004, China
Kun Cai: College of Environment and Planning, Henan University, Kaifeng 475004, China
Yatian Shen: College of Computer and Information Engineering, Henan University, Kaifeng 475004, China
Sustainability, 2021, vol. 13, issue 13, 1-20
Abstract:
Typhoons are major natural disasters in China. Much typhoon information is contained in a large number of network media resources, such as news reports and volunteered geographic information (VGI) data, and these are the implicit data sources for typhoon research. However, two problems arise when using typhoon information from Chinese news reports. Since the Chinese language lacks natural delimiters, word segmentation error results in trigger mismatches. Additionally, the polysemy of Chinese affects the classification of triggers. Second, there is no authoritative classification system for typhoon events. This paper defines a classification system for typhoon events, and then uses the system in a neural network model, lattice-structured bidirectional long–short-term memory with a conditional random field (BiLSTM-CRF), to detect these events in Chinese online news. A typhoon dataset is created using texts from the China Weather Typhoon Network. Three other datasets are generated from general Chinese web pages. Experiments on these four datasets show that the model can tackle the problems mentioned above and accurately detect typhoon events in Chinese news reports.
Keywords: typhoon; classification; event detection; polysemy; lattice; BiLSTM-CRF; Chinese news reports (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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