ARCHITECTURE FOR MULTI-DOMAIN NATURAL LANGUAGE PROCESSING

摘要

Features are disclosed for processing a user utterance with respect to multiple subject matters or domains, and for selecting a likely result from a particular domain with which to respond to the utterance or otherwise take action. A user utterance may be transcribed by an automatic speech recognition (“ASR”) module, and the results may be provided to a multi-domain natural language understanding (“NLU”) engine. The multi-domain NLU engine may process the transcription(s) in multiple individual domains rather than in a single domain. In some cases, the transcription(s) may be processed in multiple individual domains in parallel or substantially simultaneously. In addition, hints may be generated based on previous user interactions and other data. The ASR module, multi-domain NLU engine, and other components of a spoken language processing system may use the hints to more efficiently process input or more accurately generate output.

主权项

1. A system comprising:
a computer-readable memory storing executable instructions; and one or more processors in communication with the computer-readable memory, wherein the one or more processors are programmed by the executable instructions to at least:
receive text corresponding to a request of a user;process the text in a first natural language understanding (“NLU”) module to generate a first interpretation of the text, and in a second NLU module to generate a second interpretation of the text,
wherein the first NLU module is associated with a first domain, and the second NLU module is associated with a second domain,wherein the first interpretation is associated with a first score indicative of a confidence in the first interpretation, andwherein the second interpretation is associated with a second score indicative of a confidence in the second interpretation;select the first interpretation based at least partly on the first score and the second score; andgenerate a response based at least partly on the first interpretation.