Big data's biggest challenges

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IT pros from social media, healthcare and insurance industries share their big-data success stories and lessons learned

"Puppies are free, but you still have to feed them."

Virendra Vase jokingly likened this truism to Klout's experience with big data. Vase is CTO at Klout, which uses analytics to measure people's influence across social networks. "We basically sit above the social networks, gathering all the signals, helping folks to understand and be recognized for their influence," he said.

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