BOP tuning: Difference between revisions
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Cmloegcmluin (talk | contribs) →Proof of Benedetti-Optimality On All Rationals: add link to tuning map |
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The proof is similar to the TOP optimality proof. | The proof is similar to the TOP optimality proof. | ||
First, we note that for any tuning map, call it <math>T</math>, there is an associated vector called a '''signed error map'''. This is given by <math>E = T-J</math>, where <math>J</math> is the JIP. If we assume that we are in a prime-limit, then the signed error map will contain the signed error on each prime. We assume that all errors are unweighted so far. | First, we note that for any [[tuning map]], call it <math>T</math>, there is an associated vector called a '''signed error map'''. This is given by <math>E = T-J</math>, where <math>J</math> is the JIP. If we assume that we are in a prime-limit, then the signed error map will contain the signed error on each prime. We assume that all errors are unweighted so far. | ||
For any such error map, we can then divide the unweighted error by the desired weighting on each prime to get the weighted error map. This can be viewed as a change of coordinates to a ''weighted coordinate system''. Assuming our tuning maps are row vectors, this can be expressed as a matrix right-multiplication by some diagonal weighting matrix <math>W</math>, where the diagonal entries are the desired weights on each prime. We will then denote the weighted error by <math>F = E\cdot W</math>. | For any such error map, we can then divide the unweighted error by the desired weighting on each prime to get the weighted error map. This can be viewed as a change of coordinates to a ''weighted coordinate system''. Assuming our tuning maps are row vectors, this can be expressed as a matrix right-multiplication by some diagonal weighting matrix <math>W</math>, where the diagonal entries are the desired weights on each prime. We will then denote the weighted error by <math>F = E\cdot W</math>. | ||