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- W2043281137 abstract "We have investigated the dependence of spatial predictability, a statistical measure of the reduction in uncertainty about one spatial variable that can be gained by knowledge of another, on the spatial resolution (Rs) of the variables. While increasing resolution provides more descriptive information about the patterns in data, it also increases the difficulty of accurately modeling those patterns. By examining the variation of spatial predictability with Rs in a number of case studies, we have proposed the existence of an “optimal” Rs for specific studies, which balances these two factors. We analyzed land-use data by resampling map data sets at several different spatial resolutions and measuring predictability at each. Spatial auto-predictability (Pa) is the reduction in uncertainty about the state of a cell in a map given knowledge of the state of adjacent cells in that map, and spatial cross-predictability (Pc) is the reduction in uncertainty about the state of a cell in a map given knowledge of the state of corresponding cells in other maps. The Pa is a measure of the internal pattern in the data, whereas Pc is a measure of the ability of some “model” to represent the transition from one map to another. We found a strong linear relationship between the log of Pd and the log of Rs (measured as the number of cells per square kilometer). While Pa generally increases with increasing Rs (because more information is being included), Pc generally falls or remains stable (because it is easier to model aggregate results than fine-grained ones). Thus, one can define an “optimal” Rs a particular modeling problem that balances the benefit in terms of increasing data predictability (measured by Pa) as one increases resolution, with the cost of decreasing facility of modeling the temporal dynamics (measured by Pc)." @default.
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- W2043281137 date "1994-12-01" @default.
- W2043281137 modified "2023-09-27" @default.
- W2043281137 title "Scaling spatial predictability: An approach to multi-resolution modeling" @default.
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- W2043281137 doi "https://doi.org/10.1002/etc.5620131202" @default.
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