13. The method of claim 12 , wherein: further comprising: generating a weighted vector for each set of features of the selected pair of object representations, each weighted vector including the feature weights for corresponding feature values; and determining a cosine similarity value from the weighted vectors.
12. The method of claim 11 , further comprising: selecting a pair of object representations from the dataset; and determining a similarity score that measures the similarity of the pair of object representations, the similarity score determined from the feature weights associated with the feature values in the set of features of each object representation in the pair of object representations.