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Open AccessArticle

Modeling the Vagueness of Areal Geographic Objects: A Categorization System

by 1,*, 2 and 3
1
Institute of Remote Sensing and Geographical Information Systems, Peking University, Beijing 100871, China
2
Department of Geography, Texas State University, San Marcos, TX 78666, USA
3
Department of Geography, University of Wisconsin, Madison, WI 53706, USA
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2019, 8(7), 306; https://doi.org/10.3390/ijgi8070306
Received: 10 June 2019 / Revised: 24 June 2019 / Accepted: 12 July 2019 / Published: 17 July 2019
Modeling vague objects with indeterminate boundaries has drawn much attention in geographic information science. Because fields and objects are two perspectives in modeling geographic phenomena, this paper investigates the characteristics of vague regions from the perspective of the field/object dichotomy. Based on the assumption that a vague object can be viewed as the conceptualization of a field, we defined five categories of vague objects: direct field-cutting objects, focal operation-based field-cutting objects, element-clustering objects, object-referenced objects, and dynamic boundary objects. We then established a categorization system to formalize the semantic differences between vague objects using the fuzzy set theory. The proposed framework provides valuable input for the conceptualization, interpretation, and modeling of vague geographical objects. View Full-Text
Keywords: vague areal objects; fuzzy set; ontology; categorization system vague areal objects; fuzzy set; ontology; categorization system
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MDPI and ACS Style

Liu, Y.; Yuan, Y.; Gao, S. Modeling the Vagueness of Areal Geographic Objects: A Categorization System. ISPRS Int. J. Geo-Inf. 2019, 8, 306. https://doi.org/10.3390/ijgi8070306

AMA Style

Liu Y, Yuan Y, Gao S. Modeling the Vagueness of Areal Geographic Objects: A Categorization System. ISPRS International Journal of Geo-Information. 2019; 8(7):306. https://doi.org/10.3390/ijgi8070306

Chicago/Turabian Style

Liu, Yu; Yuan, Yihong; Gao, Song. 2019. "Modeling the Vagueness of Areal Geographic Objects: A Categorization System" ISPRS Int. J. Geo-Inf. 8, no. 7: 306. https://doi.org/10.3390/ijgi8070306

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