18. An article of manufacture comprising a computer-readable storage device, the computer readable storage device storing instructions that are operable, when executed by one or more computers, to cause the one or more computers to perform operations comprising: identifying a candidate term for possible inclusion in a speech recognition dictionary; identifying at least one search query metric associated with the identified candidate term; identifying at least one market data metric associated with the identified candidate term; and generating a candidate term score for the identified candidate term based, at least in part, on a weighted combination of the at least one identified search query metric and the at least one identified market data metric.
19. The article of claim 18 , the operations further including: identifying a candidate term score minimum threshold associated with the speech recognition dictionary; and determining whether the generated candidate term score for the identified candidate term meets or exceeds the candidate term score minimum threshold.