public static IEnumerable <SabotenCache> PrefetchAll(this IEnumerable <SabotenCache> dataSamples, TanukiTransformers tanukiTransformers)
{
ImmutableList <Tuple <Range, Converter <IEnumerable <double>, IEnumerable <double> > > > dataTransformers = ImmutableList <Tuple <Range, Converter <IEnumerable <double>, IEnumerable <double> > > > .Empty;
for (int featureIndex = 0; featureIndex < tanukiTransformers.TotalOutputSamples; featureIndex++)
{
dataTransformers = dataTransformers.Add(tanukiTransformers.DataTransformer(featureIndex));
}
foreach (SabotenCache dataSample in dataSamples)
{
yield return(dataSample.PrefetchAll(dataTransformers));
}
}
public static IEnumerable <SabotenCache> Prefetch(this IEnumerable <SabotenCache> dataSamples, int featureIndex, TanukiTransformers tanukiTransformers)
{
Tuple <Range, Converter <IEnumerable <double>, IEnumerable <double> > > dataTransformer = tanukiTransformers.DataTransformer(featureIndex);
foreach (SabotenCache dataSample in dataSamples)
{
yield return(dataSample.Prefetch(featureIndex, dataTransformer));
}
}
public static SabotenCache Prefetch(this SabotenCache dataSample, int featureIndex, TanukiTransformers tanukiTransformers)
{
if (dataSample.CacheHit(featureIndex))
{
return(dataSample);
}
else
{
Tuple <Range, Converter <IEnumerable <double>, IEnumerable <double> > > dataTransformer = tanukiTransformers.DataTransformer(featureIndex);
IEnumerable <double> transformedData = dataTransformer.Item2(dataSample.Data);
return(dataSample.LoadCache(dataTransformer.Item1, transformedData));
}
}