Pittsburgh is making a big bet on big data. UPMC, the University of Pittsburgh and Carnegie Mellon University on Monday announced the formation of the Pittsburgh Health Data Alliance to "revolutionize health care and wellness" by using data to detect potential outbreaks as well as create health care innovations that will spawn spinoff companies. The clinical goal, the leaders of the three institutions said, is to remake health care so that it is at once more computerized, yet more personalized, using millions of gigabytes of accumulated health records to predict and treat patients' health issues in a manner far more specific than is possible today.