| 基于地形画像的相似区域推荐 |
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| 引用本文： | 刘乾坤,刘强,许丁友,何静,毛宇昆,王超,蒋雨欣.基于地形画像的相似区域推荐[J].测绘与空间地理信息,2021,44(1):68-72. |
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| 作者姓名： | 刘乾坤 刘强 许丁友 何静 毛宇昆 王超 蒋雨欣 |
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| 作者单位： | 电子科技大学 资源与环境学院,四川 成都611731;电子科技大学 资源与环境学院,四川 成都611731;电子科技大学 资源与环境学院,四川 成都611731;西安测绘总站,陕西 西安710054;电子科技大学 资源与环境学院,四川 成都611731;电子科技大学 资源与环境学院,四川 成都611731;电子科技大学 资源与环境学院,四川 成都611731;合肥工业大学 经济学院,安徽 合肥230009 |
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| 基金项目： | 省科技厅基金;博士后基金;国家自然基金 |
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| 摘 要： | 在开展滑坡危险性分析、山区公路规划以及工业园区选址等工作时,研究区域的地形都是首要考虑的因素,为研究区域推荐几个与之地形相似的区域作为参考对象能够使得研究工作快速展开。本文提取了研究区的宏观地形特征与直方图统计特征,对研究区域的地形进行精细刻画;而后基于随机森林搭建区域分类模型,根据分类结果进行粗略推荐;最后基于粗略推荐结果,计算研究区域与其他区域之间的相似度,进行精细化推荐,为研究区域推荐5个与之地形最相似的参考区域。推荐结果显示,参考区域与研究区域的地形高度相似,在开展滑坡、泥石流灾害研究以及道路规划等工作时,可以参考推荐区域的研究结果。
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| 关 键 词： | 地形地貌 相似区域 随机森林 推荐系统 |
Similar Area Recommendation Based on Topography Portrait |
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| LIU Qiankun,LIU Qiang,XU Dingyou,HE Jing,MAO Yukun,WANG Chao,JIANG Yuxin.Similar Area Recommendation Based on Topography Portrait[J].Geomatics & Spatial Information Technology,2021,44(1):68-72. |
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| Authors: | LIU Qiankun LIU Qiang XU Dingyou HE Jing MAO Yukun WANG Chao JIANG Yuxin |
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| Institution: | (School of Resources and Environment,University of Electronic Science and Technology of China,Chengdu 611731,China;Xi′an General Surveying and Mapping Station,Xi′an 710054,China;School of Economics,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The topography of an area is the primary consideration when conducting landslide risk analysis,mountain road planning,and industrial park site selection.Recommending several areas with similar topography as reference objects for the study area can quickly start the research work.This paper firstly extracts the macro terrain features and histogram statistical characteristics of the study area and finely characterizes the topography of the study area.A region classification model is then built based on the random forest algorithm,and preliminary recommendations are made based on classification results.Finally,based on the primary recommendation results,it calculates the similarity between the study area and candidate areas,and recommends 5 reference areas for the study area.The recommended results show that the topography of the reference area is similar to that of the research area.When conducting landslide and debris flow disaster research,and road planning,the results of the recommended areas are worthy of reference. |
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| Keywords: | topography similar area random forest recommendation system |
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