We extend the "Best-Link" strategy by including several constraints in its objective function as shown below.
given a document d and a pairwise coreference scoring function pc that maps an ordered pair of mentions to a value indicating the probability that they are coreferential, we generate a coreference graph g d according to the following decision model: For each mention m i in document d, let B m i be the set of mentions appearing before m i in d. B m i = {m 1 , m 2 , ..., m i−1 }.