Bookmark this for the weekend: In the wired world, feeds drive trading
In the case of Tuesday’s commotion, Dataminr’s computers not only flagged the event but the algorithms noticed quickly that there was no corroboration. Unlike the Boston Marathon bombing a week earlier, there were none of the telltale signs of a disaster: no sudden swell of tweets from people in the vicinity of the White House, for instance, Mr. Bailey said.
