Extraction of terrain ridge lines and valley lines based on agglomeration analysis of terrain points: a cluster analysis method. - Cheng Zhang 024; Wanfeng Dou; Yuan Pang (Earth Sci. Informatics, 2023)

Spatial Semantic Expression of Terrain Viewshed: A Data Mining Method. - Cheng Zhang 024; Yiwen Wang; Haozhe Cheng; Wanfeng Dou (ISPRS Int. J. Geo Inf., 2025)