1. A method comprising: accessing a baseline language model that associates a respective baseline probability of occurrence with each of multiple different terms; obtaining information related to recent language usage from recent search queries that were submitted by multiple users of a search engine within a predetermined period of time; determining a quantity of occurrences of a particular term in the recent search queries that were submitted by the multiple users of the search engine within the predetermined period of time; selectively modifying the baseline language model to independently revise the baseline probability of occurrence associated with the particular term based at least on the quantity of occurrences of the particular term in the recent search queries that were submitted by the multiple users of the search engine within the predetermined period of time while maintaining unchanged a baseline probability of occurrence associated with a different term that does not occur in the recent search queries that were submitted by the multiple users of the search engine within the predetermined period of time by assigning a first probability to the particular term in the recent search queries that were submitted by the multiple users of the search engine within the predetermined period of time that is greater than a second probability for the different term that does not occur in the recent search queries that were submitted by the multiple users of the search engine within the predetermined period of time; and generating, by an automated speech recognizer using the modified language model, a transcription of one or more utterances of one or more different users of the search engine.