A case-based reasoning strategy of integrating case-level and covariate-level reasoning to automatically select covariates for spatial prediction

Autor: Yi-Jie Wang, Cheng-Zhi Qin, Peng Liang, Liang-Jun Zhu, Zi-Yue Chen, Cheng-Long Wu, A-Xing Zhu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Annals of GIS, Vol 30, Iss 2, Pp 199-214 (2024)
Druh dokumentu: article
ISSN: 19475683
1947-5691
1947-5683
DOI: 10.1080/19475683.2024.2324398
Popis: ABSTRACTSpatial prediction is essential for obtaining the spatial distribution of geographic variables and selecting appropriate covariates for this process can be challenging, especially for non-expert users. For easing the burden of selecting the appropriate covariates, two case-based reasoning strategies, namely the most-similar-case and covariate-classification strategies, have been proposed for automated covariate selection. The former may suggest nonessential covariates due to its case-level reasoning way. And the latter with covariate-level reasoning may overlook related covariates and recommend fewer covariates than the case-level reasoning. In this study, we propose a new strategy of integrating case-level and covariate-level reasoning to effectively leverage the strengths of both previous strategies while also addressing their limitations. The proposed strategy is validated through a case study of automatically selecting covariates for digital soil mapping under reasoning with a case base containing 189 cases. The leave-one-out evaluation demonstrated that our proposed strategy outperformed the previous two strategies.
Databáze: Directory of Open Access Journals