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Question:

What is a mixed-initiative dialog?

Answer:

Mixed-initiative Dialog: Interactions where the user may unilaterally issue a request rather than simply provide exactly the information asked for by system prompts.  For instance, while making a flight reservation, the system may ask the user, “What day are you planning to fly out?”  Instead of answering that question, the user may say, “I’m flying to Denver, Colorado.”  A Mixed-initiative system would recognize that the user provided not the exact answer to the question asked, but also (additive), or instead (substitutive), volunteered information that was going to be requested by the system later on.  Such a system would accept this information, remember it, and continue the conversation.  In contrast, a Directed Dialog system would rigidly insist on the departure date and won’t proceed successfully unless it received that piece of information.

Frequently Asked Questions

What's the difference between Amazon Alexa and Google Assistant?
Both Amazon Echo and Google Home Assistant have developed into excellent voice assistants. The speaker in Amazon Echo Show has a richer sound quality than doe the Google Home.   Both are continuing to expand their knowledge graph, but Google has the edge on answering questions.
What is an Always Listening Device?
An Always Listening Device: A device that is always listening to detect a “wake word.” For example, you may say to your smart speaker, "Alexa," "Echo," or "OK Google." When detected, the audio captured after the wake word is sent for additional processing.
How many people have ever tried a smart speaker?
76.5 million people have ever tried a smart speaker. There are 61.5 million active users of smart speakers. Amazon continues to maintain a smart speaker market share lead with 61.9% share. Google has settled in at 24% market share while Apple’s share continues to fall and now sits at 2.1%.
How many U.S. adults own smart speakers?
There are over 75 million U.S. adults that own smart speakers and 150 million that have used voice assistants on smartphones.
Can smart speaker be used for hearing impairment?
Hearing and visual impairment are supported by Orbita's Omni-channel platform.  For example, an Echo Dot only requires voice, and a visually impaired user has no disadvantage in using these types of devices. 
What is an intent schema?
Intent schema is a JSON structure that declares the intents that can be handled by the service for an Alexa custom skill or Google Action.