11. The computer program product of claim 7 , wherein said determining of the global claim polarity comprises modeling the global claim polarity as a partition between respective claims having a negative sentiment (Pro) and respective claims having a positive sentiment (Con), wherein the partition minimizes a cost function.
11. The computer program product of claim 7 , wherein said determining of the global claim polarity comprises modeling the global claim polarity as a partition between respective claims having a negative sentiment (Pro) and respective claims having a positive sentiment (Con), wherein the partition minimizes a cost function. 12. The computer program product of claim 11 , wherein said cost function equals the sum of: the sum of the probabilities of being a Con claim of the claims of said plurality of claims partitioned as Pro claims; the sum of the probabilities of being a Pro claim of the claims of said plurality of claims partitioned as Con claims; and the sum of the probabilities that a pair of claims have the same polarity of all of the pairs of claims of said plurality of claims such that one claim is partitioned as Pro and the other as Con.