3. The method of claim 1 , wherein calculating the media value comprises: determining a weighted value attributed to a positive polarity for instances of the entity in the one or more documents; determining a total number of references to the entity having a positive sentiment polarity; and multiplying the weighted value attributed to the positive polarity by the total number of references to the entity having the positive sentiment polarity to generate a positive entity reference value.
3. The method of claim 1 , wherein calculating the media value comprises: determining a weighted value attributed to a positive polarity for instances of the entity in the one or more documents; determining a total number of references to the entity having a positive sentiment polarity; and multiplying the weighted value attributed to the positive polarity by the total number of references to the entity having the positive sentiment polarity to generate a positive entity reference value. 5. The method of claim 3 , wherein calculating the media value comprises: calculating a sentiment activity sum by adding the weighted entity reference value, the negative entity reference value, and the positive entity reference value.