Risk Chain Mining of Hazard Sources in Metro Operation System Safety: A New Method to Mine and Control Risk for Safety Management
نویسندگان
چکیده
Abstract With the promotion of major strategy national transportation power, super-large-scale metro operation network has become an inevitable trend, and safety increasingly prominent. Metro dispatch logs accident reports were taken as research object, hazard sources efficiently accurately identified, risk chains mined, evolution mechanism was revealed. Firstly, lexicon constructed to improve accuracy word segmentation, text features extracted based on term frequency-inverse document frequency (TF-IDF) algorithm, key eigenvalues mined identify sources. Secondly, pattern matching used extract explicit causality, Self-Attention BiLSTM implicit causality integrated event trigger position identification enhance effectiveness extraction. Finally, example given verify efficiency model, experiments showed that F value extraction effect increased by nearly 10%, 87.53%, operational more accurate, visualization law realized.
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ژورنال
عنوان ژورنال: Urban rail transit
سال: 2023
ISSN: ['2199-6679', '2199-6687']
DOI: https://doi.org/10.1007/s40864-023-00192-3