Patent Document ID: 9495957
Application ID: 14467641

Base Claim:
1. A system for processing a natural language utterance, the system including one or more processors executing one or more computer program modules which, when executed, cause the one or more processors to: generate a context stack comprising context information that corresponds to a plurality of prior utterances, wherein the context stack includes a plurality of context entries; receive the natural language utterance, wherein the natural language utterance is associated with a command or is associated with a request; determine one or more words of the natural language utterance by performing speech recognition on the natural language utterance; identify, from among the plurality of context entries, one or more context entries that correspond to the one or more words, wherein the context information includes the one or more context entries, wherein identifying the one or more context entries comprises: comparing the plurality of context entries to the one or more words; generating, based on the comparison, one or more rank scores for individual context entries of the plurality of context entries; and identifying, based on the one or more rank scores, the one or more context entries from among the plurality of context entries; and determine, based on the determined one or more words and the context information, the command or the request associated with the natural language utterance.

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Claim 3:
3. The system of claim 1 , wherein the plurality of context entries are ordered in the context stack, and wherein the one or more processors are further caused to update, based on the one or more rank scores, the ordering of the plurality of context entries in the context stack.