14. A method comprising: receiving a first input at a first modality of a multimodal interface associated with an electronic device; responsive to receiving the first input, determining that a criterion is satisfied; in response to determining the criterion is satisfied, preemptively establishing a session between the electronic device and a query processor configured to process input received at a second modality of the multimodal interface; receiving a second input at the second modality of the multimodal interface; initiating processing of at least a portion of the second input at the query processor within the session; and building a complete query based on output from the query processor, wherein the output from the query processor includes a plurality of candidate interpretations of the second input, and wherein building the complete query comprises: ranking the plurality of candidate interpretations based at least in part on the first input.
14. A method comprising: receiving a first input at a first modality of a multimodal interface associated with an electronic device; responsive to receiving the first input, determining that a criterion is satisfied; in response to determining the criterion is satisfied, preemptively establishing a session between the electronic device and a query processor configured to process input received at a second modality of the multimodal interface; receiving a second input at the second modality of the multimodal interface; initiating processing of at least a portion of the second input at the query processor within the session; and building a complete query based on output from the query processor, wherein the output from the query processor includes a plurality of candidate interpretations of the second input, and wherein building the complete query comprises: ranking the plurality of candidate interpretations based at least in part on the first input. 20. The method of claim 14 , further comprising providing output to indicate that the session between the electronic device and the query processor is available.