12. The computer program product of claim 11 , wherein the classification rubric is derived by conducting a semantic analysis of a product review sample set to identify sentiment key phrases and assigning each sentiment key phrase to a product characteristic.
12. The computer program product of claim 11 , wherein the classification rubric is derived by conducting a semantic analysis of a product review sample set to identify sentiment key phrases and assigning each sentiment key phrase to a product characteristic. 15. The computer program product of claim 12 , wherein the sentiment key phrases are classified as negative or positive sentiment key phrases.