Fabian Becker
b1553f3088
Switched from Ant to Maven. Usage: - Install Maven 3.x - Enter directory with pom.xml - Type mvn compile - Enjoy!
33 lines
1.8 KiB
HTML
33 lines
1.8 KiB
HTML
<html>
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<head>
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<title>Post-processing parameters</title>
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</head>
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<body>
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<h1 align="center">Post-processing parameters</h1>
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<center>
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</center>
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<p>
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If post processing is activated, it is performed after every
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optimization run and it may be triggered using the solutions of the last optimization run by
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the "Post process" button.
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Post processing performs both accuracy checks of the delivered solutions and a clustering/refinement of the
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solutions with a local search method. The solutions are clustered to remove redundancy and the remaining
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best cluster representatives are considered. </p>
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<p>For the accuracy evaluation, multiple thresholds may be used. The solutions are then clustered using a distance
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of 0.1 times the respective accuracy threshold and a Nelder-Mead-Simplex search is initialized in close vicinity.
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As soon as the NMS search fails to produce an improved solution at a distance larger than the accuracy threshold
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from the original positions, the solution is considered to be accurate by that threshold. </p>
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<p>Besides the accuracy, a refinement can be performed using several local search methods. After the refinement,
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the set is clustered again to filter out solutions which converged on the same optimum during the local search.
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</p>
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<p>
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The results of the post processing are displayed in the text window (and/or stats output file) and show a coarse
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distribution of the final solutions as well as the explicit vectors of the n best solutions obtained, where n
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is set as printNBest parameter.
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If post-processing is started several times in a row, the initial solution set is the same, namely the one found
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by optimization. Thereby one can guess, e.g., how close the solutions are to each other and how closely they
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have converged during optimization itself.
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</p>
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</body>
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</html> |