I predict that 2015 is the year big data will revolutionize the way we conduct business in the world of corporate travel. While every reservation--from airline to hotel to car to train--has always (and necessarily) left a data trail, the increasing use of smartphones and widespread availability of Wi-Fi has brought with it an avalanche of data in the form of online reviews, social media "check-ins," and website tracking, to name just a few sources.

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