Fig. 2From: A tree based approach for multi-class classification of surgical procedures using structured and unstructured dataAlgorithm for calculating class weight when word w is in both dictionaries, \(CPT\_catalog\_dict_{p_i}\) and \(CPT\_catalog\_dict_{actual}\) (named as \(C\_dict_{actual}\) and \(C\_dict_{p_i}\)). C(w) and I(w) refer to the count and importance measure of the word wBack to article page