public void FeatureSelectionExperiment(ClassificationAlgorithmType algorithmType, string targetTag, FeatureSelectorType featureSelectorType)
{
var classifierParamses = Enumerable
.Range(1, 40)
.Where(i => i <= 5 || i % 5 == 0)
.Select(i => ClassifierParams
.Create(ClassifierType.Simple, algorithmType, targetTag)
.SelectFeatures(featureSelectorType, 0, i, 0, 1000))
.ToArray();
EvaluateManyClassifiers(classifierParamses, targetTag, x => string.Format("Selector {0} with selection percent {1}", x.FeatureSelectionParams.Type, x.FeatureSelectionParams.UpperBoundPercent));
}
public ClassifierParams SelectFeatures(FeatureSelectorType featureSelectorType, int lowerBoundPercent, int upperBoundPercent, int minDocCount, int maxDocCount)
{
FeatureSelectionParams = new FeatureSelectionParams
{
Type = featureSelectorType,
LowerBoundPercent = lowerBoundPercent,
UpperBoundPercent = upperBoundPercent,
MinDocCount = minDocCount,
MaxDocCount = maxDocCount,
TargetTag = TargetTag
};
return this;
}
