9. A computer program product in a recordable-type computer readable medium for classifying media data, comprising: first instructions for classifying input media data for later access based on classification in response to receiving the input media data; second instructions for applying a plurality of classifiers in a hierarchical classification structure to the input media data; third instructions for generating confidence scores for the plurality of classifiers in the hierarchical classification structure; fourth instructions for modifying a confidence score automatically for a classifier in the hierarchical classification structure based on a relationship between the classifier and other classifiers in the hierarchical classification structure and the confidence scores of the other classifiers in the hierarchical classification structure by applying a confusion factor to the confidence score based on a correspondence between the confidence score and confidence scores of mutually exclusive classifiers in the hierarchical classification structure; fifth instructions for generating a representation of the input media data based on the modified confidence score being higher than a predetermined threshold confidence score; and sixth instruction for storing the generated representation of the input media data.
9. A computer program product in a recordable-type computer readable medium for classifying media data, comprising: first instructions for classifying input media data for later access based on classification in response to receiving the input media data; second instructions for applying a plurality of classifiers in a hierarchical classification structure to the input media data; third instructions for generating confidence scores for the plurality of classifiers in the hierarchical classification structure; fourth instructions for modifying a confidence score automatically for a classifier in the hierarchical classification structure based on a relationship between the classifier and other classifiers in the hierarchical classification structure and the confidence scores of the other classifiers in the hierarchical classification structure by applying a confusion factor to the confidence score based on a correspondence between the confidence score and confidence scores of mutually exclusive classifiers in the hierarchical classification structure; fifth instructions for generating a representation of the input media data based on the modified confidence score being higher than a predetermined threshold confidence score; and sixth instruction for storing the generated representation of the input media data. 13. The computer program product of claim 9 , further comprising: seventh instructions for using the stored representation of the input media data to access the input media data.