Perhaps this would help: http://en.wikipedia.org/wiki/Correlation http://en.wikipedia.org/wiki/Correlation I have only just skimmed the paper so far and can't

Perhaps this would help: http://en.wikipedia.org/wiki/Correlation http://en.wikipedia.org/wiki/Correlation I have only just skimmed the paper so far and can't really comment more on it right now. In case anyone else is interested, this is the link to the paper: http://arxiv.org/pdf/0901.1392v1 http://arxiv.org/pdf/0901.1392v1