Exercises

  1. Review the facts that influence the attribute accuracy of real world objects and phenomenon.
  2. The 1990 land use map is 1:250000 scale. The 2000 land use map is 1:50000 scale. Is it logical to overlay the two maps to analyze the land use changes? Explain your opinion.
  3. Calculate the sample size to evaluate the attribute accuracy for a map that has 15 categories.
  4. Calculate the overall, producer and user attribute accuracy of the following dataset.
Land cover A B C D E F
A. Mixed Forest 8 0 1 0 2 0
B. Paddy 0 10 0 2 0 1
C. Plantation 3 0 21 0 4 0
D. Corn 0 0 0 9 0 3
E. Pine 4 0 5 0 23 0
F. Sugarcane 0 2 0 3 0 14