Estimating spatiotemporal aggregation scales by revisiting the spatiotemporal L-function
文献类型：期刊论文
| 作者 | Yan, Xiaorui3; Pei, Tao2,3; Song, Ci3; Liu, Xiaohan3 |
| 刊名 | TRANSACTIONS IN GIS
 |
| 出版日期 | 2023-04-01 |
| 卷号 | N/A |
| ISSN号 | 1467-9671 |
| DOI | 10.1111/tgis.13034 |
| 文献子类 | Article; Early Access |
| 英文摘要 | As an important statistical tool for spatial data, the L-function is widely used in the estimation of the spatial aggregation scale. However, for heterogeneous spatiotemporal points, the formulation of the existing spatiotemporal L-function makes it liable to produce poor estimates of spatiotemporal aggregation scales, which is essential in revealing process evolutions, such as spatiotemporal scopes of seismic sequence and spatiotemporal spread extents of an epidemic. This technical note analyzes the mechanism whereby the existing L-function incorrectly estimates the spatiotemporal aggregation scales, and presents a modified spatiotemporal L-function that overcomes these issues. Moreover, a local version of the improved L-function is developed to identify aggregations for validation. The results of simulation experiments and a seismic case study demonstrate that our method estimates the spatiotemporal aggregation scales accurately, which verify the veracity of our corrections to the existing spatiotemporal L-function. |
| WOS关键词 | K-FUNCTION |
| WOS研究方向 | Geography |
| WOS记录号 | WOS:000943365800001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190247]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 作者单位 | 1.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, 11A,Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Xiaorui,Pei, Tao,Song, Ci,et al. Estimating spatiotemporal aggregation scales by revisiting the spatiotemporal L-function[J]. TRANSACTIONS IN GIS,2023,N/A. |
| APA | Yan, Xiaorui,Pei, Tao,Song, Ci,&Liu, Xiaohan.(2023).Estimating spatiotemporal aggregation scales by revisiting the spatiotemporal L-function.TRANSACTIONS IN GIS,N/A. |
| MLA | Yan, Xiaorui,et al."Estimating spatiotemporal aggregation scales by revisiting the spatiotemporal L-function".TRANSACTIONS IN GIS N/A(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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