6. The computer-implemented method of claim 4 , wherein interpolation of the personal model and the general model comprises interpolation of an element of the personal model with a corresponding element of the general model.
4. A computer-implemented method comprising: under control of one or more computing devices configured with specific computer-executable instructions, training, based at least partly on user data regarding a user, a personal model for use in named entity recognition, the personal model comprising a named entity recognition model; interpolating the personal model and a general model to obtain a composite model, the general model comprising a named entity recognition model; receiving audio input of an utterance, the audio input captured via a microphone; generating a transcription of the utterance based at least partly on the audio input and performing named entity recognition on the transcription using the composite model to generate a sequence of named entities.