00001 " ",
00002 " ",
00003 " ----------------------------------- UMIN -----------------------------------",
00004 " ",
00005 " Generic unconstrained minimization parameters",
00006 " rvl/umin/include/LBFGSBT.hh, rvl/umin/include/TRGNAlg.hh",
00007 " ",
00008 " -------------------------- begin umin parameters ---------------------------",
00009 " ",
00010 " MaxSteps = 10 maximum number of model updates",
00011 " MaxSubSteps = 10 max number of inner alg steps (eg. line",
00012 " search or iterative linear solver)",
00013 " InitStepBound = 1.0f max length of first step",
00014 " MinDecrease = 0.1f minimum fractional decrease (1st G-A param)",
00015 " GoodDecrease = 0.9f decrease threshhold for step increase",
00016 " (2nd G-A param)",
00017 " StepDecrFactor = 0.5f decrease step or trust radius by this factor",
00018 " if fractional decrease less than MinDecrease",
00019 " StepIncrFactor = 1.8f increase step or trust radius by this factor",
00020 " if fractional decrease more than GoodDecrease",
00021 " MaxFracDistToBdry = 1.0 do not allow update to exceed this fractional",
00022 " step to boundary of feasible set (limits step",
00023 " or trust radius)",
00024 " AbsGradThresh = 0.0 stop if gradient norm falls below",
00025 " RelGradThresh = 1.e-2 stop if gradient norm falls below this fraction",
00026 " of its initial value",
00027 " MinStepTol = 1.e-6 min length of step as fraction of LS vector len or",
00028 " trust radius ",
00029 " VerboseDisplay = true write summary information to output stream",
00030 " ",
00031 " ---------------------------- end umin parameters ---------------------------",
