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首页> 外文期刊>International Journal of Environmental Research and Public Health >Using Improved Principal Component Analysis to Explore Construction Accident Situations from the Multi-Dimensional Perspective: A Chinese Study
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Using Improved Principal Component Analysis to Explore Construction Accident Situations from the Multi-Dimensional Perspective: A Chinese Study

机译：用改进的主成分分析法从多维角度探讨建筑事故情况：一项中国研究

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摘要

The improvement of the macro-level accident situation in the Chinese construction industry is currently an urgent task for the government due to the high accident rate. This study intends to use improved principal component analysis to explore the accident situations in the Chinese construction industry from a multi-dimensional perspective, aiming at providing targeted direction on the improvement of the accident situation for the government. Six composite indicators that can quantify the accident situation are firstly selected based on a wide review of the literature and interviews with safety experts, with the original data collected from China institutions. The classical principal component analysis is then improved to examine the correlations between indicators, and further to evaluate accident situations in China provinces. Finally, the features of accident situations are explored and analyzed from a multi-dimensional perspective. The findings show that the improved principal component analysis can retain more dispersion degree information of the original data. Meanwhile, three principal components including the accident frequency, trend, and severity were extracted to quantify the accident situation, and a hierarchical indicator system for the comprehensive evaluation of the accident situation was constructed to deeper understand multi-dimensional characteristics of China’s accident situations. Furthermore, there exist great regional differences of accident situations in Chinese provinces. From the overall perspective, the accident situation shows a declining trend from the western backward region to the highly developed eastern coastal region. This study provides a multi-dimensional perspective for the government to formulate safety regulations and improve the accident situation.
机译：由于事故率高，改善中国建筑业的宏观事故状况目前是政府的紧迫任务。这项研究旨在使用改进的主成分分析从多维角度探讨中国建筑行业的事故情况，旨在为政府改善事故情况提供有针对性的指导。首先根据广泛的文献回顾和对安全专家的采访，并从中国机构收集的原始数据，选择出六种可以量化事故情况的综合指标。然后改进经典主成分分析以检查指标之间的相关性，并进一步评估中国各省的事故情况。最后，从多维角度探讨和分析了事故情况的特征。结果表明，改进的主成分分析可以保留更多原始数据的分散度信息。同时，提取了事故发生频率，趋势和严重性三个主要成分，对事故情况进行量化，并建立了用于事故情况综合评估的层次指标体系，以加深对中国事故情况多维特征的理解。此外，中国各省的事故情况存在很大的地区差异。从总体上看，事故情况从西部落后地区到高度发达的东部沿海地区呈下降趋势。该研究为政府制定安全法规和改善事故情况提供了多维视角。

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