Systems and methods for responding to natural language speech utterance

A system for facilitating notification of context changes across multiple electronic devices, the system including one or more processors executing one or more computer program modules which, when executed, cause the system to:

• register a library associated with a first electronic device to subscribe the first electronic device to one or more context events;
• receive a context change event from a second electronic device;
• and
• inform the first electronic device of the context change event to synchronize a context across the first electronic device and the second electronic device.

A method for facilitating notification of context changes across multiple electronic devices, the method being implemented in a computer system that includes one or more processors executing one or more computer program modules which, when executed, perform the method, the method comprising:

• registering a library associated with a first electronic device to subscribe the first electronic device to one or more context events;
• receiving a context change event from a second electronic device;
• and
• informing the first electronic device of the context change event to synchronize a context across the first electronic device and the second electronic device.

A system for facilitating context-based speech recognition, the system including one or more processors executing one or more computer program modules which, when executed, cause the system to:

• access one or more contexts that are stored in a context stack associated with a natural language utterance in response to one or more grammars in a context description grammar failing to correspond to information associated with the natural language utterance;
• compare the information to one or more context matchers to determine a most likely context associated with the natural language utterance;
• and
• use one or more grammar expression entries in the context description grammar to generate a command or request associated with the most likely context.

A method for facilitating context-based speech recognition, the method being implemented in a computer system that includes one or more processors executing one or more computer program modules which, when executed, perform the method, the method comprising:

• accessing one or more contexts that are stored in a context stack associated with a natural language utterance in response to one or more grammars in a context description grammar failing to correspond to information associated with the natural language utterance;
• comparing the information to one or more context matchers to determine a most likely context associated with the natural language utterance;
• and
• using one or more grammar expression entries in the context description grammar to generate a command or request associated with the most likely context.