Is Twitter a Reliable Polling Machine? Not Yet, Says Carnegie-Mellon

Could Twitter become a cheaper replacement for polling firms such as
YouGov in the future? A research team at Carnegie-Mellon University in Pittsburgh has gone through a billion tweets in an attempt to discover whether sentiments posted on the social media site reflect opinion polls. Noah Smith, assistant professor of language technologies and machine learning at the School of Computer Science, says that, although the results were a little bumpy on a day-to-day basis, the opinions...