Have you ever wondered how Netflix knows what movies to recommend for you—or realized that if it is suggesting kids' movies, that means someone else in the house must have been using your account? It turns out that this sort of technology, which relies on what is called "big data," is also useful for calltaking and emergency response. Consider the size of the data that we collectively work with. Based on some available information, if there were global coverage of emergency numbers, there would be approximately seven billion emergency calls (911, 999, 998, 997, 112, 111, 102, etc.) per year...

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