15. A non-transitory computer-readable medium encoded with a set of instructions executable by a processor, the set of instructions comprising: instructions to receive a plurality of single sentiment scores, wherein each single sentiment score is from a respective scoring sentiment application, wherein each single sentiment score is indicative of a respective overall sentiment of a plurality of sentiment expressions, wherein each sentiment expression from the plurality of sentiment expressions is from a different, independent sentiment source; and instructions to generate a single unified sentiment score based on the plurality of single sentiment scores, wherein the single unified sentiment score is indicative of an overall sentiment of the plurality of sentiment expressions.
17. The non-transitory computer-readable medium of claim 15 , wherein the set of instructions further comprises instructions to apply a respective weighting factor to each of the single sentiment scores, wherein a higher relative weighting factor is indicative of a sentiment scoring application being older than a different sentiment scoring application having a lower relative weighting factor.