Talent through technology: could algorithms help you hire?

You are head of talent acquisition. You're about to make contact with what recruiters call a cold prospect, someone not actively looking for a job. You know this because their CV isn't on any job boards. Neither have they registered with LinkedIn's Open Candidate tool, which basically says "call me". And yet far from this being the shot in the dark it used to be, you're calling safe in the knowledge that the recipient will be seven times more likely to be interested in what you say.