@Override
public DefaultWeightedValueDiscriminant<CategoryType> evaluateWithDiscriminant(
final Vectorizable input) {
// Convert the input to a vector.
final Vector inputVector = input.convertToVector();
// Find the category that has the highest match.
double bestScore = 0.0;
CategoryType bestCategory = null;
for (CategoryType category : this.getCategories()) {
final double score = this.evaluateAsDouble(inputVector, category);
if (bestCategory == null || score > bestScore) {
bestScore = score;
bestCategory = category;
}
}
// Return the discriminant for the category.
return new DefaultWeightedValueDiscriminant<CategoryType>(bestCategory, bestScore);
}
/**
* Evaluates how much the given input matches the prototype for the given category.
*
* @param input The input.
* @param category The category to match the input against.
* @return A real value indicating how much the input matches the category. A larger value
* indicates a better match.
*/
public double evaluateAsDouble(final Vectorizable input, final CategoryType category) {
return this.evaluateAsDouble(input.convertToVector(), category);
}
@Override
public double evaluateAsDouble(final Vectorizable input) {
return this.getWeightVector().dotProduct(input.convertToVector());
}