public static Parameter getSVMParamter() {
Parameter param =
new Parameter(SolverType.L2R_L2LOSS_SVC_DUAL, 1, Double.POSITIVE_INFINITY, 0.1);
if (param.getEps() == Double.POSITIVE_INFINITY) {
switch (param.getSolverType()) {
case L2R_LR:
case L2R_L2LOSS_SVC:
param.setEps(0.01);
break;
case L2R_L2LOSS_SVR:
param.setEps(0.001);
break;
case L2R_L2LOSS_SVC_DUAL:
case L2R_L1LOSS_SVC_DUAL:
case MCSVM_CS:
case L2R_LR_DUAL:
param.setEps(0.1);
break;
case L1R_L2LOSS_SVC:
case L1R_LR:
param.setEps(0.01);
break;
case L2R_L1LOSS_SVR_DUAL:
case L2R_L2LOSS_SVR_DUAL:
param.setEps(0.1);
break;
default:
throw new IllegalStateException("unknown solver type: " + param.getSolverType());
}
}
return param;
}
public Parameter getParamsCopy() {
Parameter p2 = new Parameter(params.getSolverType(), params.getC(), params.getEps());
if (weights != null) {
p2.setWeights(params.getWeights(), params.getWeightLabels());
}
p2.setEps(params.getEps());
return p2;
}
public void setWeights(double[] weights) {
this.weights = weights;
params.setWeights(weights, weightLabels);
doWeightLabels = true;
}
public void setEps(double eps) {
this.eps = eps;
params.setEps(eps);
}