QUANTIFICATION ERROR VERSUS LOCATION ERROR IN COMPARISON OF CATEGORICAL MAPS

This paper analyzes quantification error vs. location error in a comparison between 2 cellular maps that show a categorical variable. Quantification error occurs when the quantity of cells of a particular category in a map is different from the quantity of cells of that category in another map. Location error occurs when the location of a category in a map is different from the location of that category in another map. The standard Kappa index of agreement is usually not appropriate for map comparison. This paper offers alternative statistics: 1) proportion correct with perfect ability to specify location; 2) proportion correct with perfect ability to specify quantity; 3) Kappa for no ability; 4) Kappa for location; and 5) Kappa for quantity. These statistics can help scientists improve classification. This paper applies these theoretical concepts to the validation of a land-use change model for the Ipswich Watershed in Massachusetts.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00991112
• Corporate Authors:

  American Society for Photogrammetry and Remote Sensing

  5410 Grosvenor Lane, Suite 210
  Bethesda, MD  United States  20814-2160
• Authors:
  • Pontius Jr, R G
• Publication Date: 2000-8

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1011-16
• Serial:
  • Photogrammetric Engineering and Remote Sensing
  • Volume: 66
  • Issue Number: 8
  • Publisher: American Society for Photogrammetry and Remote Sensing
  • ISSN: 0099-1112

Subject/Index Terms

• TRT Terms: Geographic information systems; Highway transportation; Land use models; Mapping; Maps; Remote sensing; Transportation planning; Travel; Validation
• Geographic Terms: Ipswich Watershed (Massachusetts)
• Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00797657
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 16 2000 12:00AM