21. The one or more non-transitory computer readable media of claim 19 , wherein the language use prediction data is independent of data used to train the natural language processing model.
19. One or more non-transitory computer readable media comprising executable code that, when executed, cause one or more computing devices to perform a process comprising: obtaining language use prediction data regarding an item; determining, using the language use prediction data and a learning model trained to generate probabilities based on the language use prediction data, probability information regarding a probability that the item will be referenced in a future utterance; generating a natural language processing model based at least partly on the probability information; determining a probability, from a general model, that a name of the item is included in a user utterance; and adjusting, using the natural language processing model, the probability that the name of the item is included in the user utterance.