It created an algorithm to understand which tweets skewed positive and which were negative.

CNN: How do you feel about Romney and Obama? Ask the 'Twindex'

First off, the sentiment ratios was skewed somewhat dramatically toward Romney both in terms of positive and negative sentiment as demonstrated in the chart above.

FORBES: Mr. Ailes, the Numbers Support Gingrich's Bias Complaint

Another reason the public may have gotten a skewed view of antidepressant efficacy is that drug companies have tended to publicize only their most positive studies.

FORBES: Health Care