Classi ® cation and boundary vagueness in mapping presettlement forest types
نویسندگان
چکیده
Presettlement forest types were mapped as fuzzy sets from point data representing trees contained in General Land O ce survey notes (circa 1850) for Chippewa County, Michigan. The resulting representation agreed with a polygon map of the same forest types at 66% of the locations (represented as grid cells) in the county. Boundary vagueness was de® ned in relation to the slope of a linear function ® tted to the negative relation between entropy of forest types and distance to polygon boundaries. The similarity between forest type compositions (i.e. classi® cation ambiguity) was shown to account for 55% of the variation in boundary vagueness.
منابع مشابه
Classification and Boundary Vagueness in Mapping Presettlement Forest Types
Presettlement forest types were mapped as fuzzy sets from point data representing trees contained in General Land O ce survey notes (circa 1850) for Chippewa County, Michigan. The resulting representation agreed with a polygon map of the same forest types at 66% of the locations (represented as grid cells) in the county. Boundary vagueness was de® ned in relation to the slope of a linear funct...
متن کاملRunning Head: Classification and Boundary Vagueness Classification and Boundary Vagueness in Mapping Presettlement Forest Types
Presettlement forest types were mapped as fuzzy sets from point data representing trees contained in General Land Office survey notes (ca.1850) for Chippewa County, Michigan. The resulting representation agreed with a polygon map of the same forest types at 66 percent of the locations (represented as grid cells) in the county. Boundary vagueness was defined in relation to the slope of a linear ...
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