A generalized cross-tabulation matrix to compare soft-classified maps at multiple resolutions

被引:141
作者
Pontius, RG [1 ]
Cheuk, ML [1 ]
机构
[1] Clark Univ, Sch Geog, Dept Int Dev Commun & Environm, Worcester, MA 01610 USA
基金
美国国家科学基金会; 美国安德鲁·梅隆基金会;
关键词
accuracy; confusion; fuzzy; ontology; raster; scale;
D O I
10.1080/13658810500391024
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper addresses two grand challenges in the development of methods for Geographic Information Science (GIS). First, this paper presents techniques to compute a cross-tabulation matrix for soft-classified pixels. Second, it shows how to compute the cross-tabulation matrix at multiple scales. The traditional approach to construct the cross-tabulation matrix uses a Boolean operator to analyse pixels that are hard-classified. For soft-classified pixels, the contemporary approach uses a Multiplication operator; the fuzzy approach uses a Minimum operator; whereas this paper proposes a multiple-resolution approach that uses a Composite operator. There are difficulties with the traditional, contemporary, and fuzzy methods of computing the cross-tabulation matrix. The proposed multiple-resolution method resolves those difficulties. Furthermore, the proposed method facilitates multiple-resolution analysis, so it can examine how results change as a function of scale. The paper derives the equations to compute cross-tabulation matrices at multiple resolutions and connects those equations to ontological foundations of GIS.
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页码:1 / 30
页数:30
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