1. A method of classifying input text to a target classification system having two or more target classes, the method comprising: for each target class: providing at least first and second class-specific weights and a class-specific decision threshold; using at least first and second classification methods to determine respective first and second scores based on the input text and the target class; determining a composite score based on the first score scaled by the first class-specific weight for the class and the second score scaled by the second class-specific weight for the target class; and classifying or recommending classification of the input text to the target class based on the composite score and the class-specific decision threshold.