private void BestConfiguration(ILearner <TSample> learner)
{
var predictions = _cache.ContainsKey(learner.UniqueId) ? _cache[learner.UniqueId] : (_cache[learner.UniqueId] = GetPredictions(learner));
var best = new LayerHolder(float.PositiveInfinity, null, null);
var sampleCount = predictions.Count;
var samplesProcessed = 0;
foreach (var p in predictions)
{
best = BestLayerSetup(learner.WithConfiguration(p.Key), p.Value, best);
SetBest(best);
if (_cancellation.IsCancellationRequested)
{
return;
}
if (_progress != null)
{
samplesProcessed++;
_progress.Report(Tuple.Create("Finding best setup for \"" + learner.UniqueId + "\"", samplesProcessed * 100 / sampleCount));
}
}
//Parallel.ForEach(
// predictions,
// () => new LayerHolder(float.PositiveInfinity, null, null),
// (p, s, best) => BestLayerSetup(learner.WithConfiguration(p.Key), p.Value, best),
// SetBest
//);
}
private void SetBest(LayerHolder best)
{
lock (_bestLock)
{
if (best.Loss < _bestLoss)
{
_bestLearner = new KeyValuePair <Layer <TSample>, float[]>(best.Layer, best.Values);
_bestLoss = best.Loss;
}
}
}
internal override IntPtr _InternalGetConstPointer()
{
#if RHINO_SDK
if (m_doc != null)
{
return(UnsafeNativeMethods.CRhinoLayerTable_GetLayerPointer2(m_doc.m_docId, m_id));
}
#endif
if (m_onx_model != null)
{
IntPtr pModel = m_onx_model.NonConstPointer();
return(UnsafeNativeMethods.ONX_Model_GetLayerPointer(pModel, m_id));
}
if (m__parent is LayerHolder)
{
LayerHolder holder = m__parent as LayerHolder;
return(holder.ConstPointer());
}
return(IntPtr.Zero);
}
public LayerView(LayerHolder holder)
{
InitializeComponent();
this.DataContext = holder;
this.holder = holder;
}
internal Layer(IntPtr pConstLayer)
{
LayerHolder holder = new LayerHolder(pConstLayer);
ConstructConstObject(holder, -1);
}
internal void SetPage(dlgDrawings page)
{
_page = page;
_holder = new LayerHolder(page);
propertyGrid2.SelectedObject = _holder;
}
private LayerHolder BestLayerSetup(ILearner <TSample> learner, float[] predictions, LayerHolder best)
{
var result = OptimizeCoefficients(learner, predictions);
#if DEBUG
if (float.IsInfinity(result.Loss))
{
// ReSharper disable once EmptyStatement
;//let me know
}
#endif
best = result.Loss < best.Loss ? result : best;
return(best);
}