8. The computer-implemented method of claim 6 , wherein the confidence score is determined, by the one or more processors, for each of the plurality of candidate entities based at least in part on the text signal using a scoring function, the scoring function providing the confidence score for each of the plurality of candidate entities as a function of the text signal.
10. The computer-implemented method of claim 8 , wherein the scoring function is configured to provide the confidence score based at least in part on a popularity of the text signal.