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首页> 外文会议>International Symposium on Earth Hazard and Disaster Mitigation >Assessment of Landslide Distribution Map Reliability in Niigata Prefecture - Japan Using Frequency Ratio Approach
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Assessment of Landslide Distribution Map Reliability in Niigata Prefecture - Japan Using Frequency Ratio Approach

机译：利用频率比方法评估牛肝菌县的山体滑坡分布地图可靠性

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Research on landslide susceptibility has evolved rapidly over the few last decades thanks to the availability of large databases. Landslide research used to be focused on discreet events but the usage of large inventory dataset has become a central pillar of landslide susceptibility, hazard, and risk assessment. Indeed, extracting meaningful information from the large database is now at the forth of geoscientific research, following the big-data research trend. Indeed, the more comprehensive information of the past landslide available in a particular area is, the better the produced map will be, in order to support the effective decision making, planning, and engineering practice. The landslide inventory data which is freely accessible online gives an opportunity for many researchers and decision makers to prevent casualties and economic loss caused by future landslides. This data is advantageous especially for areas with poor landslide historical data. Since the construction criteria of landslide inventory map and its quality evaluation remain poorly defined, the assessment of open source landslide inventory map reliability is required. The present contribution aims to assess the reliability of open-source landslide inventory data based on the particular topographical setting of the observed area in Niigata prefecture, Japan. Geographic Information System (GIS) platform and statistical approach are applied to analyze the data. Frequency ratio method is utilized to model and assess the landslide map. The outcomes of the generated model showed unsatisfactory results with AUC value of 0.603 indicate the low prediction accuracy and unreliability of the model.
机译：由于大型数据库的可用性，过去几十年山坡易感性的研究已经迅速发展。 Landslide研究用于专注于谨慎事件，但大量库存数据集的使用已成为滑坡易感性，危害和风险评估的中央支柱。实际上，在大数据研究趋势之后，从大型数据库中提取了从大型数据库的有意义的信息。实际上，在特定领域可用的过去山体滑坡的更全面的信息是，生产地图越好，以支持有效的决策，规划和工程实践。在线自由访问的滑坡库存数据为许多研究人员和决策者提供了机会，以防止未来山体滑坡造成的伤亡和经济损失。这种数据有利于山体滑坡历史数据不良的区域。由于Landslide Inventory Map的施工标准及其质量评估仍然定义不足，因此需要对开源滑坡库存可靠性进行评估。目前的贡献旨在根据日本新泻县观察区域的特定地形设置来评估开源滑坡库存数据的可靠性。地理信息系统（GIS）平台和统计方法应用于分析数据。频率比法用于模拟和评估滑坡地图。所生成模型的结果显示出令人满意的效果0.603表示模型的低预测精度和不可靠性。

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