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#### Bibliographic Item (1.0)

- Eduardo Mianda
- Improving subjective estimates Using Paired Comparisons
- IEEE Software Magazine V18n1(Jan/Feb 2000)pp87-91
- =DEMO MATHEMATICS ESTIMATION
- Use pairwise comparisons to form a judgment matrix. Review internal inconsistencies and then derive ratio scale. Use scale and known reference values to get better estimates.
- Map verbal judgments to ratios: equal+>1 | bigger+>1.75 | smaller . 0.57 | slightly bigger +> 1.25 | slightly smaller +> 0.80 | much bigger +> 4.0 | much smaller +> 0.25 | extremely bigger > 7.00 | extremely smaller +> 0.13
- judgment_matrix:= matrix(1..n><1..n -> ratio ).
- geometric_mean[r] =v[r],
- v[r] = a[r,*] **(1/n).
- ratio[r] = v[r]/v[+].
- inconsistency := sqrt(+[r] (+[c:r+1..n] (ln(a[r,c]) - ln(v[r]/v[c]) ))) /((n-1)*(n-2)/2).

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