1. A computer-implemented method for bridging terminology differences between at least two subject areas, comprising executing the following steps on a computer: computing a first affinity measure between a first term in a first corpus, corresponding to a first subject area, and a bridge term; computing a second affinity measure between a second term in a second corpus, corresponding to a second subject area, and the bridge term; and computing a third affinity measure between the first term and the second term based on the first affinity measure and the second affinity measure; wherein the bridge term is a term that appears in both the first corpus and the second corpus.