FS's- October 19th
Check out this trick! They say that people are in a better mood at times when the DOW is high, well what is the DOW anyway? Its the trading index of the top 30 "publically traded" companies in the US, that is, its a yardstick for OLIGOPOLY, there is no corresponding index which measures the unequal distribution of wealth within the DOW or outside of it. To say that happiness precedes corporate wealth consolidation in essence is saying that happiness or (good mood, an irrational state permitted by the repression of reality) is part of the problem, the study also needs to be scrutinized for the software it used to analyse 10 million tweets with, and the demographics of the population tested not mentioned.
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FROM PHYSORG

Analyzing almost 10 million tweets, research finds public mood can predict Dow days in advance


Researchers at IU Bloomington's School of Informatics and Computing found the correlation between the value of the Dow Jones Industrial Average (DJIA) and public sentiment after analyzing more than 9.8 million tweets from 2.7 million users during 10 months in 2008.

Using two mood-tracking tools to analyze the text content of the large-scale collection of Twitter feeds, Associate Professor Johan Bollen and Ph.D. candidate Huina Mao were able to measure variations in public mood and then compare them to closing stock market values.

One tool, OpinionFinder, analyzed the tweets to provide a positive or negative daily time series of public mood. The second tool, Google-Profile of Mood States (GPOMS), measured the mood of tweets in six dimensions: calm, alert, sure, vital, kind, and happy. Together, the two tools provided the researchers with seven public mood time series that could then be set against a similar daily time series of Dow Jones closing values.

The researchers then correlated the two sets of values -- Dow Jones and public mood -- and used a self-organizing network model to test a hypothesis that predicting stock market closing values could be improved by including public mood measurements.

"We were not interested in proposing an optimal Dow Jones prediction model, but rather to assess the effects of including public mood information on the accuracy of the baseline prediction model," Bollen said. "What we found was an accuracy of 87.6 percent in predicting the daily up and down changes in the closing values of the Dow Jones Industrial Average."

By implementing a prediction model called a Self-Organizing Fuzzy Neural Network (SOFFNN) similar to one already used to successfully forecast electrical load needs, the researchers were able to demonstrate that public mood had the ability to significantly improve the accuracy of the most basic models currently in use to predict Dow Jones closing values. Bollen described this particular SOFFNN as a five-layer hybrid neural network with the ability to self-organize its own neurons during a learning process that included information of past Dow Jones and public mood time series values.

"Given the performance increase for a relatively basic model such as the SOFNN, we are hopeful to find equal or better improvements for more sophisticated market models that may in fact include other information derived from news sources and a variety of relevant economic indicators," he said.


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