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火灾风险时空预测的动态管道

A Dynamic Pipeline for Spatio-Temporal Fire Risk Prediction
课程网址: http://videolectures.net/kdd2018_lee_fire_risk_prediction/  
主讲教师: Jessica Lee
开课单位: 卡内基梅隆大学
开课时间: 2018-11-23
课程语种: 英语
中文简介:
最近世界各地城市发生的备受瞩目的火灾事件突显了减少火灾风险工作的差距,因为城市需要保护的资源和财产越来越少。为了解决这一资源缺口,先前的工作已经开发了机器学习框架,以预测火灾风险并确定火灾检查的优先级。然而,现有的方法由于不包括时变数据、从不实时部署以及仅预测城市中一小部分商业地产的风险而受到限制。在此,我们基于来自多个市政机构的时变数据,为匹兹堡所有20636个商业地产开发了预测风险框架。我们已经在匹兹堡消防局(PBF)部署了火灾风险模型,并开发了住宅物业火灾风险预测的初步风险模型。我们的商业风险模型以0.33的kappa(与0.17相比)优于现有技术水平,并且能够应用于比现有模型多近4倍的财产。自我们的模型首次部署以来的5周内,58%的预测高风险物业发生了任何类型的火灾事件,而23%的建筑火灾事件发生在我们预测的高风险或中等风险物业。我们的商业模型的风险评分显示在交互式仪表板和地图上,以帮助PBF规划其火灾风险降低计划。这项工作已经有助于提高匹兹堡火灾风险的降低,并开始被其他城市采用。
课程简介: Recent high-profile fire incidents in cities around the world have highlighted gaps in fire risk reduction efforts, as cities grapple with fewer resources and more properties to safeguard. To address this resource gap, prior work has developed machine learning frameworks to predict fire risk and prioritize fire inspections. However, existing approaches were limited by not including time-varying data, never deploying in real-time, and only predicting risk for a small subset of commercial properties in their city. Here, we have developed a predictive risk framework for all 20,636 commercial properties in Pittsburgh, based on time-varying data from a variety of municipal agencies. We have deployed our fire risk model on Pittsburgh Bureau of Fire’s (PBF), and we have developed preliminary risk models for residential property fire risk prediction. Our commercial risk model outperforms the prior state of the art with a kappa of 0.33 compared to their 0.17, and is able to be applied to nearly 4 times as many properties as the prior model. In the 5 weeks since our model was first deployed, 58% of our predicted high-risk properties had a fire incident of any kind, while 23% of the building fire incidents that occurred took place in our predicted high or medium risk properties. The risk scores from our commercial model are visualized on an interactive dashboard and map to assist the PBF with planning their fire risk reduction initiatives. This work is already helping to improve fire risk reduction in Pittsburgh and is beginning to be adopted by other cities.
关 键 词: 火灾事件; 时变数据; 初步风险模型
课程来源: 视频讲座网
数据采集: 2022-12-04:chenjy
最后编审: 2022-12-04:chenjy
阅读次数: 27