private void xvalidate(final GLMModel model, int lambdaIxd, final H2OCountedCompleter cmp) {
final Key[] keys = new Key[n_folds];
H2OCallback callback =
new H2OCallback() {
@Override
public void callback(H2OCountedCompleter t) {
try {
GLMModel[] models = new GLMModel[keys.length];
// we got the xval models, now compute their validations...
for (int i = 0; i < models.length; ++i) models[i] = DKV.get(keys[i]).get();
new GLMXValidationTask(model, _lambdaIdx, models, cmp)
.asyncExec(_dinfo._adaptedFrame);
} catch (Throwable ex) {
cmp.completeExceptionally(ex);
}
}
@Override
public boolean onExceptionalCompletion(Throwable ex, CountedCompleter caller) {
cmp.completeExceptionally(ex);
return true;
}
};
callback.addToPendingCount(n_folds - 1);
double proximal_penalty = 0;
for (int i = 0; i < n_folds; ++i)
new GLM2(
this.description + "xval " + i,
self(),
keys[i] = Key.make(destination_key + "_" + _lambdaIdx + "_xval" + i),
_dinfo.getFold(i, n_folds),
_glm,
new double[] {lambda[_lambdaIdx]},
model.alpha,
0,
model.beta_eps,
self(),
model.norm_beta(lambdaIxd),
proximal_penalty)
.run(callback);
}
private void xvalidate(final GLMModel model, int lambdaIxd, final H2OCountedCompleter cmp) {
final Key[] keys = new Key[n_folds];
GLM2[] glms = new GLM2[n_folds];
for (int i = 0; i < n_folds; ++i)
glms[i] =
new GLM2(
this.description + "xval " + i,
self(),
keys[i] = Key.make(destination_key + "_" + _lambdaIdx + "_xval" + i),
_dinfo.getFold(i, n_folds),
_glm,
new double[] {lambda[_lambdaIdx]},
model.alpha,
0,
model.beta_eps,
self(),
model.norm_beta(lambdaIxd),
higher_accuracy,
prior,
0);
H2O.submitTask(
new ParallelGLMs(
GLM2.this,
glms,
H2O.CLOUD.size(),
new H2OCallback(GLM2.this) {
@Override
public void callback(H2OCountedCompleter t) {
GLMModel[] models = new GLMModel[keys.length];
// we got the xval models, now compute their validations...
for (int i = 0; i < models.length; ++i) models[i] = DKV.get(keys[i]).get();
new GLMXValidationTask(model, _lambdaIdx, models, cmp)
.asyncExec(_dinfo._adaptedFrame);
}
}));
}