Kamal and Siraj Tahir are two brothers who share a passion for data. Each is a data professional in their respective countries; Kamal in Chicago, IL and Siraj in London, England. Both are presenting during Big Data Week in Chicago 2014. But they’re doing it with a twist. Their two-part presentation is called: “The Big Data Revolution is Expensive. Re-evolving Your Data is Not. Here’s Why.” Kamal is presenting Part 1 from Chicago at 10 am (CST) on May 6, 2013. Siraj will be joined by Kamal at 10 am (CST) on May 8, 2014 to deliver Part 2 from London.