Dynamic Fire Risk Classification Prediction of Stadiums: Multi-Dimensional Machine Learning Analysis Based on Intelligent Perception

被引:8
|
作者
Lu, Ying [1 ,2 ]
Fan, Xiaopeng [1 ]
Zhao, Zhipan [1 ]
Jiang, Xuepeng [1 ]
机构
[1] Wuhan Univ Sci & Technol, Sch Resource & Environm Engn, Wuhan 430081, Peoples R China
[2] Hubei Ind Safety Engn Technol Res Ctr, Wuhan 430081, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 13期
基金
中国国家自然科学基金;
关键词
machine learning; dynamic fire risk; stadium; Internet of Things (IoT); data mining; INTRUSION DETECTION;
D O I
10.3390/app12136607
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Stadium fires can easily cause massive casualties and property damage. The early risk prediction of stadiums will be able to reduce the incidence of fires by making corresponding fire safety management and decision making in an early and targeted manner. In the field of building fires, some studies apply data mining techniques and machine learning algorithms to the collected risk hazard data for fire risk prediction. However, most of these studies use all attributes in the dataset, which may degrade the performance of predictive models due to data redundancy. Furthermore, machine learning algorithms are numerous and applied to fewer stadium fires, and it is crucial to explore models suitable for predicting stadium fire risk. The purpose of this study was to identify salient features to build a model for predicting stadium fire risk predictions. In this study, we designed an index attribute threshold interval to classify and quantify different fire risk data. We then used Gradient Boosting-Recursive Feature Elimination (GB-RFE) and Pearson correlation analysis to perform efficient feature selection on risk feature attributes to find the most informative salient feature subsets. Two cross-validation strategies were employed to address the dataset imbalance problem. Using the smart stadium fire risk data set provided by the Wuhan Emergency Rescue Detachment, the optimal prediction model was obtained based on the identified significant features and six machine learning methods of 12 combination forms, and full features were input as an experimental comparison study. Five performance evaluation metrics were used to evaluate and compare the combined models. Results show that the best performing model had an F1 score of 81.9% and an accuracy of 93.2%. Meanwhile, by introducing a precision-recall curve to explain the actual classification performance of each model, AdaBoost achieves the highest Auprc score (0.78), followed by SVM (0.77), which reveals more stable performance under such imbalanced data.
引用
收藏
页数:23
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