Geo-rough space

S. Wang, D. Li, Wen Zhong Shi, X. Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review


Rough set is a new approach to uncertainties in spatial analysis.In this paper,rough set symbols are simplified and standardized in terms of rough interpretation and specialized indication.Rough spatial entities and their topological relationships are also proposed in rough space,thus a universal intersected equation is developed,and rough membership function is further extended with the gray scale in our case study.We complete three works.First,a set of simplified rough symbols is advanced on the basis of existing rough symbols.Second,rough spatial entity is put forward to study the real world as it is,without forcing uncertainties into crisp set.Third,rough spatial topological relationships are studied by using rough matrix and their figures.The relationships are divided into three types,crisp entity and crisp entity (CC),rough entity and crisp entity (RC),and rough entity and rough entity (RR).A universal intersected equation is further proposed.Finally,the maximum and minimum maps of river thematic classification are generated via rough membership function and rough relationships in our case study. 還原
Original languageEnglish
Pages (from-to)54-61
Number of pages8
JournalGeo-spatial information science (地球空间信息科学学报)
Issue number1
Publication statusPublished - 2002


  • Rough set
  • Rough spatial entity
  • Rough topological relationship
  • Rough symbols

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geography, Planning and Development


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