Tikhonov Regularized Variable Projection Algorithms for Separable Nonlinear Least Squares Problems

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Method</td><td class="align_center">Runtime (s)</td><td class="align_center">Number of iterations</td><td class="align_center">Residual sum</td><td class="align_center">RMSE</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">VP<sub>GP+TR</sub></td><td class="align_center">40.596687</td><td class="align_center">10</td><td class="align_center">0.1477</td><td class="align_center">0.0859</td></tr><tr><td class="align_left">VP<sub>KAU+TR</sub></td><td class="align_center">17.186718</td><td class="align_center">10</td><td class="align_center">0.1477</td><td class="align_center">0.0859</td></tr><tr><td class="align_left">VP<sub>RJF+TR</sub></td><td class="align_center">31.073001</td><td class="align_center">100</td><td class="align_center">0.1477</td><td class="align_center">0.0859</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Quantitative comparison of performance for each method.</div>

Complexity

tab2

Table 2

Table 2: Tikhonov Regularized Variable Projection Algorithms for Separable Nonlinear Least Squares Problems 