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所在平台: Udemy |
课程主页: https://www.udemy.com/course/susceptibility-auto-mapping-tools-for-trainingtesting-data/
课程评论：没有评论
课程名称：仅使用QGIS提取滑坡坡度和栅格单元 课程概述：欢迎参加我的新工具课程，本课程将帮助您学习如何利用简单的内置工具构建和应用复杂的坡度分析。由Omar F. Althuwaynee博士（GIS与测绘工程博士）主讲，您将学习到以下内容： - 介绍QGIS处理工具箱的强大功能 - 在QGIS中安装免费的处理工具 - 理解栅格单元（GU）和形态坡度单元（SU）的提取过程 - 自动生成用于数据挖掘模型（如逻辑回归或人工神经网络等）的训练和测试数据，步骤简单 - 使用少于5个步骤轻松运行每种映射技术（GU和SU） QGIS作为开源软件，界面简洁且免费，特别适合资源有限的第三世界大学和学生。本课程结束时，您将能够高效地使用自动化流程构建训练和测试数据，以准备滑坡易发性制图，利用QGIS的开源软件分析能力。 ***** 2022年2月更新！！ ***** 我们更新了名为LaGriSU（滑坡-栅格和坡度单元-QGIS工具包）的“模型工具”，当前版本：性能更好，处理时间更短，支持QGIS版本3.10、3.12和3.14（64位和32位），在Windows和Linux上均经过测试。增强了对滑坡无区域（区域）的定义假设，增加了两种技术：1）缓冲区，2）坡度值阈值。能够使用点和多边形特征的全面库存，并提供全面的统计图和报告，以显示滑坡位置的不同值统计摘要。 ***** 2023年3月更新！！ ***** 在GitHub上解决了大面积使用时的稳定性问题，几何体与消融方面的错误，坡度单元的二元采样（1,0）训练和测试的计数比例更接近1:1，并删除了小多边形（像素形状）。 您可以在GitHub链接上查找关键词：/Althuwaynee/LaGriSU_Landslide-Grid-and-Slope-Units-QGIS_ToolPack 关键词：QGIS, GIS, 自动化, 工具, 模型，制图，易发性
Welcome to my recent developed tools, that will help you to learn how to build apply sophisticated steeps using easy built in tools.Along this course, I (Omar F. Althuwaynee, PhD in GIS and Geomatics engineering) will help you to:To introduce into powerful function of processing tool boxes of QGIS Install free processing tools inside QGIS To understand the procedure of extraction of Grid units (GU) and morphological Slope units (SU)To produce training and testing data AUTOMATICALLY, to be used later as input for data mining models like logistic regression or ANN and more. in easy stepsTo easily run procedure with Less than 5 steps for each type of mapping techniques (GU and SU)."QGIS as open source has very simple interface and FREE of charge available, therefore it is the great and powerful tool especially in third world based universities and not funded students." At the the end of this course, you will be easily and efficiently able to use automatic process to build training and testing data for preparing landslide susceptibility mapping, using modeler of QGIS open source FREE software analysis capability.***** February 2022 UPDATE!! *******We have updated the "Model tools" named LaGriSU (Landslide-Grid-and-Slope-Units-QGIS_ToolPack), the current version: Better performance and less time in processingit works on QGIS versions 3.10, 3.12, 3.14 (64 bit & 32 bit) tested on both Windows and LinuxMore robust hypothesis regarding to define landslide-free area (zones): I added 2 techniques 1) Buffer zones, and 2) Slope value thresholdBoth inventory of point and polygon features can be usedComprehensive plots: Box plot to show the summary of different values statistics within landslides locationsComprehensive summary reports: Summary of values statistics within landslides locations***** March 2023 UPDATE!! ******* on GitHubStability issues when using large areasErrors in geometries and dissolveSlope units: binary sampling (1,0) count of training and testing is more closer in term of 1:1 ratio Slope units: small polygons (pixel shapes) were removedUsing Github link(search for /Althuwaynee/LaGriSU_Landslide-Grid-and-Slope-Units-QGIS_ToolPack) Keywords: QGIS, GIS, automatic, tools, modeler, mapping, susceptibility
