Using A.I. to Take the Market's Pulse

Harnessing the power of language can be a boon to traders bent on something as seemingly subjective as a diagnosis of the marketâ??s pulse. Itâ??s one thing to scour news databases to find negative references to a company whose stock youâ??re about to sell short. But itâ??s another thing to detect what Philip Resnik, a professor of linguistics at the University of Maryland, calls spin.