6. The method of claim 1 , wherein each of the plurality of objects is associated with one or more fact, each of the one or more facts having a value, and wherein applying the matcher to each pair of objects in one of the plurality of buckets comprises: for each common fact of the pair of objects, determining a similarity of the values of the common fact based on a similarity measure; and determining that the pair of objects are duplicates based on the similarity.
6. The method of claim 1 , wherein each of the plurality of objects is associated with one or more fact, each of the one or more facts having a value, and wherein applying the matcher to each pair of objects in one of the plurality of buckets comprises: for each common fact of the pair of objects, determining a similarity of the values of the common fact based on a similarity measure; and determining that the pair of objects are duplicates based on the similarity. 8. The method of claim 6 , wherein each of the one or more facts has an entropy, and wherein determining that the pair of objects are duplicates comprises: determining that the pair of objects are duplicates based on the entropies of the common facts with similar values.