7. The method of claim 6 , wherein performing the similarity comparison comprises computing a similarity based on feature vectors corresponding to the first mention and second mention, using the weights.
7. The method of claim 6 , wherein performing the similarity comparison comprises computing a similarity based on feature vectors corresponding to the first mention and second mention, using the weights. 9. The method of claim 7 , wherein the features used for forming the feature vectors are from only the features of the activated subset of features.