Decomposition of Repulsive Clusters in Complex Point Processes with Heterogeneous Components
文献类型：期刊论文
| 作者 | Song, Ci1,2; Pei, Tao1,2
|
| 刊名 | ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 8期号:8页码:16 |
| 关键词 | decomposition of a point process spatial heterogeneity repulsive cluster aggregative cluster H-function |
| DOI | 10.3390/ijgi8080326 |
| 通讯作者 | Pei, Tao(peit@lreis.ac.cn) |
| 英文摘要 | The decomposition of a point process is useful for the analysis of spatial patterns and in the discovery of potential mechanisms of geographic phenomena. However, when a local repulsive cluster is present in a complex heterogeneous point process, the traditional solution, which is based on clustering, may be invalid for decomposition because a repulsive pattern is not subject to a specific probability distribution function and the effects of aggregative and repulsive components may be counterbalanced. To solve this problem, this paper proposes a method of decomposing repulsive clusters in complex point processes with multiple heterogeneous components. A repulsive cluster is defined as a set of repulsive density-connected points that are separated by a certain distance at a small scale and aggregated at a large scale simultaneously. The H-function is used to identify repulsive clusters by determining the repulsive distance and extracting repulsive points for further clustering. Through simulation experiments based on three datasets, the proposed method has been shown to effectively perform repulsive cluster decomposition in heterogeneous point processes. A case study of the point of interest (POI) dataset in Beijing also indicates that the method can identify meaningful repulsive clusters from types of POIs that represent different service characteristics of shops in different local regions. |
| WOS关键词 | NEAREST-NEIGHBOR METHOD ; DENSITY |
| 资助项目 | National Natural Science Foundation of China[41525004] ; National Natural Science Foundation of China[41421001] ; National Natural Science Foundation of China[41601430] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[QYZDY-SSW-DQC007] |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000482985000025 |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Frontier Science, Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69675]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Pei, Tao |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Ci,Pei, Tao. Decomposition of Repulsive Clusters in Complex Point Processes with Heterogeneous Components[J]. ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION,2019,8(8):16. |
| APA | Song, Ci,&Pei, Tao.(2019).Decomposition of Repulsive Clusters in Complex Point Processes with Heterogeneous Components.ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION,8(8),16. |
| MLA | Song, Ci,et al."Decomposition of Repulsive Clusters in Complex Point Processes with Heterogeneous Components".ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 8.8(2019):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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